Vw 1600 compression psi un known milage) engine is on a test rig ,which is why its not VW says maximum compression pressure for your engine would be between 114-142PSI. The 1835 in my baja has been in it for over 20 years, Don't listen to them. I replaced the springs with CBs single High-Revs and push 9 psi of boost to 5500 rpm with no sign of valve float. I use an electric pump that make 5-8 psi all the time with no prob. "Statement from SCORE Tech director, Art Savedra, After almost two years of watching this 8-to-1 low compression engine combination compete against the High compression engines I have seen a very competitive new introduction and a need for a . Anyway I was surprised to find that I’m running a static compression ratio of 8. You most likely have a valve train concern and or worn piston rings, until the compression is brought back up if ur gettin 180-200, u def got something wayyy wrong, at 200 psi thats nearing diesel compression ratios. _____ 2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK 2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS 1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK Featured in Dec. Those cheap $30 anyone know what the best compression ratio would be for a daily driver all stock 1600 with today's fuel? Totally depends on which octane you intend to use. 8T AUG on B5 FWD Tiptronic The Volkswagen 1600 Karmann-Ghia is a rear wheel drive automobile, with its engine located in the rear, and a 2 door coupé body designed by Ghia. The '71 now has the 1835 engine, swapped from the '70. This should run okay on 91 RON octane -- normal unleaded in Australia (87AKI is can anyone tell me off hand what the cmpression ratio of a standard 1600 type 1 is? And what it would be for a 1641? Can youy work out the compression ratio without splitting What should the compression be on a VW 1600 engine? VW performance air cooled engines for the street can run 8. I have to do the work myself do to low $'s. Finding the right size motor is the key. 94 to get the correct compression value. A forum community dedicated to air cooled Volkswagen owners and enthusiasts. 986K posts 81K members Since 2005 The New Beetle forum, come in and join our discussions on the new Volkswagen Beetle. 5:1, assuming flat pistons. 0:1 Spacer, or low CR pistons would enable upwards of 12-14 psi Yet again, a 8. oil is making it to the lifters. -Stiffer "sport" shocks (ex. How do I convert a 17. Technical (VW & Audi) 2. (considering a can of engine restore with fresh oil change have heard good things) Thanks for the input faded this car looks like it has 50k on it I payed 1800 Get the car back, change the oil to a VW 506. The 10. 1 - 140 psi 2 - 160 psi 3 - 140 psi 4 - 140 psi 5 - 125 psi 6 - 140 psi The motor wasn't warm when I did the test, in fear of something going horribly wrong. Chris They should all be more than 100 psi (usually more than 130 psi for a 1600cc engine), and less than 10 psi between best cylinder and worst cylinder. Diesel engines often have higher ratios, like 15:1 to 25:1, which means higher PSI values. 7*11)/1. Thanks in its actually a shortblock from a GLI that was purchased from underground VW because i had a little mis shift incident when i 1st picked up the 20th Used. 1999, 2000, 2001; Golf 1. 01 0w30 (similar to the break-in oil from the factory). How To Do A Compression Test (VW 1. 4 Compression, Checking Special tools and workshop equipment required [emoji815] Spark For example, if the atmospheric pressure is 14. To the OP, great write up!! Cool looks like SCORE is helping bring some budget minded changes to 1/2 1600, 5/1600 and 9 classes. 5 Checked coolant temp through VAG COM after I was all done, after waiting about 10-15 mins and it was at 50*C, so it's safe to say engine was warm enough. I would guess you are well within it. It was nasty looking when I bought it (I hate random zip ties and electrical tape in the engine bay) and coated with its own Posted: Yesterday 4:19 pm Post subject: Re: Compression psi to Compression Ratio? There is a spec for how much variance is normal. It has been 50 years so I don't recall the compression range that is acceptable but I think it was around 120 PSI plus a 1200 as having compression values of 100-128 psi with 85 psi wear limit a 1300 as having compression values of 107-135 psi with 85 psi wear limit a 36hp as having compression values of 100-121 psi with 64 psi wear limit With yours at a little over 100psi, perhaps you were driving a fresh rebuilt 36 hp pushing 120 psi. Second 5. 0L engine lists 110 PSI as a minimum whereas the max variation between any cylinders is 30% from the highest reading. 0:1 Horsepower (SAE) @ rpm 235 @ 4500 276 @ 6200 276 @ 6200 Maximum torque, lb-ft @ rpm 258 @ 1600 266 @ 2750 266 @ 2750 Fuel Requirement ENGINE DESIGN Arrangement Front mounted, transverse Front mounted, transverse Front mounted, transverse Cylinder block Cast iron Cast iron Cast iron Compression pressure new: 25 to 31 bar (362. The repair shop I used did a compression test and found Cylinders 1,3,4 to have 155 psi and cylinder 2 to have 60 psi. To Find the CC size of a Head Needed For Any Compression Ratio: Cylinder Disp. I was surprised to find out that Cyl #2 is now 20% below wear limit. or too low cheers steve . got 120, 120, 90, 120 I'm getting a misfire on cylinder 3 This note describes a simplified method of determining the thickness of a block to cylinder shim spacer needed to reduce the compression ratio of an air cooled VW engine. Lowering comp. 0 Liter Engine Forum. fuel is on the plugs. VW dished the bus pistons (15cc on stock Mahle 94mm 2. 5 psi) Wear limit 19 bar (275. When all cylinders have been checked, reinstall spark plugs and ignition coils, connect harness connectors for coils and reinstall fuse #32. Various iterations were produced ANSWER: 149 PSI is the lowest possible compression value. I purchased these heads for my 1600 efi/turbo. 8359 = 150 psi. If any are of the plugs are oily, then you have internal wear. Cylinder head, valves, springs, guides, seats, all top quality workmanship. the advise that the other guy was giving you to lower your pressure is to stack extra gaskets raising your fuel pump. 26 psi. Those cheap $30-$40 auto store gauges are not accurate or calibrated to anything. coolant is not oily, oil is not full of coolant. 0 with 140k miles? Im assuming it should be in the 120-150psi range but cant seem to Is your classic VW Type 1 sedan lacking perpetual power? Always sluggish or slow? Bruce demonstrates how to perform a compression test on his #1969VW Sedan. BUT : Ideally, there should be no more than 10 psi difference between cylinders. FAQ. of about 85-90 on all 4 cylinders when the engine is cold (1600 tp . The low-compression option in class-12 has been helpful without a bunch of chaos. this is what creates the Nox emissions because when the hydrocarbons are done burning, there is still oxygen left in the combustion chamber Re: What compression ratio for turbo charged VR6? (vee_are_six) It is widely accepted that the stock 10. Your compression figures are fine for a partly worn engine - the main thing to watch for is more than 10psi worst to best - that would indicate one cylinder on the way out (and probably more following close behind). 1600 240th Street Harbor City If the compression in all 6 cylinders is between 60 and 90 psi (my mechanic told me this) would that be a good indicator of bad/bent valve's more than rings? The engine never over heated. 0L piston) partially to reduce the Compression Ratio 9. 006" max. 0 engine. Not like your gonna do anything about it. 2000; Jetta 1. 0TDI allroad Technical (VW & Audi) 2. 2:1 Horsepower (SAE) @ rpm 170 @ 4500 150 @ 3500 Maximum torque, lb-ft @ rpm 199¹ @ 1600 Fuel Requirement Regular unleaded ENGINE DESIGN Arrangement Front mounted, transverse Front mounted, transverse Cylinder block Cast iron Cast iron Crankshaft Cast iron, five main bearings Forged steel, five main bearings Today we look at how to lower compression on a VW engine. That is, if I get a compression reading of 100 psi at 7300 ft elevation, I would divide by 0. 4 rockers are always a plus) and have more fun driving your VW. its like low compression high boost, high compression low boost, some people according to other sources I looked up, 3 psi at idle is right for most carbs. This video covers what other videos DON’T!0:00 Intro1:25 Preparing the En It is a good idea. Just removed head for 1&2 cylinders due to low compression (74 convertible 1600). I'm presently doing a An exhaustive guide covering a Compression Test on an Air Cooled Volkswagen Engine. The hand-held diagnostics show a problem on Cylinder 2. 2001 HOT VW's Magazine page 63 Compression Ratio 9. This is all assuming the crankcase ventilation is functioning properly. 7:1: Fuel system: 2 Solex 32 PDSIT carburettors: bmep (brake mean effective pressure) 872. Only show this user Re: 1. :D Or a cheaper way . If you want to test the rings, run the same test again, but this time squirt a small amount of engine oil in the combustion chambers before you screw in the compression tester. At least the '72 and on had aluminum crank cases which helps I have a 97 vr6 and I just did a compression test 60psi give or take on every cylinder but the car runs great no smoke not burning oil. 12psi which is slightly short. ) 1978, 1969 VW Jetta VW Passat Capable of leaping tall buildings in a single bound: Back to top: I typically see 10 psi pressure for each 1000 rpm, so 40 psi at 4000 rpm once warmed up. Second owner of each. They have a regulation cam and a set compression ratio so you would still have to get the heads machined . Dual carbs can actually get better MPG when set up correctly. un known milage) . You would like tobe between 160-203 PSI with a max difference of 43. Bugman. I recently installed a vdo oil temp and oil pressure gauge. I have a Super Flow bench and I The diesel compression testers go 200-300 psi higher than the gas/spark plug gauges. engine is on a test rig ,which is why its not warmed up is ok? . How can new pistons and cylinders have under 110 pounds compression? Have I installed them wrong? Did I check them wrong? I put the fitting for my tester in a cold engine pulled the coil wire Held the petal on the floor and rolled the engine a couple times. The numbers on your gauge really don't mean anything. Reinstall fuse panel. This can SEVERLY injure you if the system is not bled down properly before removal of the original pump. 2: or less. If the difference is greater than 20 psi, you should consider removing the cylinder head for inspection. Your compression Hi all I’m running a 1600 turbo bug with is having a top end overhaul and This is the first time I’ve had a chance to measure up and check the static compression ratio. According to VW, a heathy Type IV engine is like so: 1700cc: 100-135psi, no lower than 85 psi ; 1800/2000cc: 85-135psi, no lower than 71 psi ; These numbers were obtained from a compression test. They will take a lot of punishment and run with a hole in a piston, with worn How do I calculate diesel engine compression ratio to PSI? To find the compression ratio to PSI for a diesel engine, use the same formula as for gasoline engines: PSI = (Compression Ratio + 1) x 14. 5 For reference on a VR6 AAA (2. 0, no compression on 1,3,4 125 psi on #3. These numbers were obtained from a compression test. 5:1, 9:1, or even 10:1. 6 PS/33. What I found was a round metal shim between the head and the cylinder. 1/4 mile VW TDI Discussion Areas. The engine transmits power to the wheels via a 6 speed manual gearbox. A tight valve(s) will cause a loss of compression, robbing would you say a compression test . Stock Compression (in PSI) for AWD engine code? Jump to Latest Follow 1 - 6 of 6 Posts. A stock 1600 will run fine with 7. 4T - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. 8L Jetta, Passat, Golf, New Beetle) Applies To: Volkswagen Vehicles: Beetle 1. At some point the head becomes heat stressed. = Good compression. As mentioned a cheap performance header will also make a noticeable improvement on you 1600. 1cr and they all worked great. checked the compression, 0, 0, 125, 0. car manufacturers; Porsche Princess Renault Rolls-Royce Rover Saab Seat Skoda Smart Spectre Ssangyong Subaru Suzuki Talbot Tesla Think Toyota Triumph TVR Volkswagen Volvo Yugo Stock Volkswagen engines (for gasoline) have used compression ratios as low as 5. 0 16V t3/t4e car. 9 Horsepower (SAE) @ rpm: 147 @ 5000 Maximum Torque, lb-ft @ rpm: 184 @ 1600 Fuel Requirement: Regular unleaded ENGINE DESIGN: Arrangement Front mounted, transverse: Cylinder Block Aluminum alloy: Crankshaft Cast iron, five main bearings: Cylinder Head Aluminum alloy, crossflow: Valvetrain I suggest removing the spark plugs and do the compression test. Note - it's normal to get readings of up to 500-550 The difference between 60mph and 70mph can mean a further increase in temps by 50F. Long term undesirable affects are equally important to me. 0 16V stock compression would be excessive , but we indeed did tune a 11:1 2. He said there was no coolant in the car, and there is no compression on three of the cylinders I asked him where the coolant would have gone, and why would it have overheated. I did a compression test about 6 months ago and it was 170 in all 4 cyclinders. Though I've never taken a compression reading so soon after building a motor. VW Mechanic: vwbugman. I will be TD1’d based on the tune. But if you replace the turbo first, be prepared to go further. 0:1 Maximum Turbo Boost, PSI: 31. 2 6 valves are prone to these? I performed a repeatable compression test on a warm engine with values around: 240-250 cylinder 1, 230-240 cylinder 2 and 210-220 cylinder 3. It worked well there and should be nice for 1600 cars too. Put #1 on TDC compression stroke, put in gear ebrake on, hook up an The engine is a stock 1600DP that was rebuilt from an original VW Mexico longblock a few years back. I towed the car to the VW dealership, wherein they ran the same test; however, their numbers were as follows: cylinder #2 50 psi, cylinder #1 188 psi, cylinder #3 200 psi, cylinder #4 190 psi. But good luck trying to make that point with VW. Or a cheaper way . 8 kgm) at 2000 rpm respectively. 8L. our engines have a compression ratio of 9. VPC compressor etc kit, VW 203 221; DPD Over head unit, ZVW 805 5020; DPD Under dash unit, Those are your ballpark jets for your 1600 however they are not real world figures. Have 85 lbs compression in those 2 cylinders By chatting and normal firing compression needs to be at least 100 PSI per cylinder, they will not fire at 85 PSI. 8l 12V) engine the compression for a new engine as per the service manual is 160 - 189PSI the wear limit is 109PSI with a 10:1 compression ratio. You should see 483 PSI on a healthy or fresh engine - and the Bentley mentions a maximum of 71 PSi difference between cylinders. 1965 Volkswagen 1600 Karmann-Ghia Typ The Volkswagen 1600 Karmann-Ghia is a rear wheel drive automobile, with its engine located in the rear, and a 2 door coupé body designed by Ghia. My Chilton manual for this vehicle with a 2. Save Share VW Beetle Forum. Yours definitely sounds very low, I agree ring seating could be an issue but with cylinder pressure at 75PSI there could also be other issues. Did compression test: First round: cyl 1: 165 cyl 2:163 cyl 3:165 cyl 4:166 Repeated test to ensure results, got the following w/o changing anything: cyl 1: 170 cyl 2: 168 cyl 3: 167 cyl 4: 166. Therefore, the answer is 161. Re: 16v g60 compression???? (rmn) some folks with good gas intercooling, run the 1. For starters, new slugs can drop you a full point of compression (or more, if that's what you want/need) and that's more than most shims (typically only . it makes 270 ft/lbs and still gets 45+ mpg. All that matters is that all 4 cylinders have less than 10% difference. But for this engine, we want to Posted: Tue Oct 11, 2022 9:34 am Post subject: Re: Stock 1600 Compression Ratio difference You can run whatever compression ratio you want, as long as you run the correct octane gas A fresh 1600 (nicely run-in) should give 130 or more psi. 8:1 and as high as 8. 5:1 witch I think is a little high. Oil light flashes and buzzer sounds at i did a compression test on my bug's 1600cc motor and they were all within 140-150psi is this good or bad! thanx in advance----- ride t'ill i That is a stock 1600 also BTW With NO head shimms/gaskets, and flat top pistons. The min value is 128 psi, the optimal i think is aroun 150 psi If you test it in cold engine probably the rings wont be well tight and 100 psi maybe is normal test in wam condition and you will know Hello, Can anyone tell me the early symptoms of burnt valves please as I understand the 1. Contributor Posts 29 Registered 21/6/11 Location Dublin Ireland Member Is Offline Photo Archive Building: re build Locost. 9L ECOdiesel). It has run 60 000 miles now. - (Desired Compression Ratio x Deck Height Disp. 70 A/R), Re: 15psi on 10:1 compression on a 16v (Scrubby) compression values? I have no idea. 6 psi to 118. I live at 7300 ft so I divide by 0. What factors can affect the compression ratio in an engine? Several factors can affect the compression ratio, including the piston design, the size of the combustion chamber, and any modifications made to the engine. 5 to 1 compression 1 1/2 header 36 or 40 IR carbs 60cc port 35x32 60cc port 40x35 _____ Grapes of Wrath $200 Engine Rebuild Official Dual Carb Thread The Fisher book on "How to Hot Rod the VW" lists the head flow numbers for single port and dual port 1600 VW heads but does not have the test pressures. I knew nothing about vw's and the owner game me his copy of the idiot book. The engine seems to run pretty hot, as I slightly burned myself when I tried the dipstick. Using a standard 0-300 psi tester will hardly reach a reading of 280, even if the actual compression is over 500 psi. Golf & Jetta (all Gens) Golf II & Jetta II. Altitude plays a big part in what you can set your compression at. go buy yourself a diesel. Reading #4 has a range of 111. GraniteRooster Veteran Member. Back to top: Does the Bentley number apply to the VW V6? you cylinders are reading 100-99psi that looks normal difference between the cylinders. " That would explain a little higher reading for that engine,it sounds like it was set up with and still running a little tight with rather close tolerances,not neccesarily a bad thing,the standard recommended pressure for all engines of earlier design than yours is 42psi @ 2500rpm,so after some more running time(~5 to 10k miles) you'll probably 8-9. 5973 posts · Joined 2002 Add to quote; Only show VW service guy just called to ask if the car had been overheated. difference between all cylinders, 3 bar. Quote, originally posted by TurboMinivan »: Having said that, installing head shims instead of lower compression pistons isn't the smartest way to go. They will be great a stock 1600 and work even better on a 1776. Warm engine, all plugs out, full throttle, full battery, turn engine over with starter. 5:1 compression ratio to PSI? I know there are a ton of variables, but what are some average psi for a motor when doing a compression check on a lower compression ratio turbo motor. 6 puck going in. At low idle cyl 3 &4 dont fire. 7. I'm thinking this might be the end of the car- A little background info. 0:1 compression is at it's limit at 10 psi. As mentioned a cheap performance header will in fact, diesels need to run WAY lean compared to gassers. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. As part of my vw aircooled workshops, I teach that Vw aircooled engines by design are very forgiving, they are low compression, low revving and will keep going on and on for 1000’s of miles even with running issues including high fuel pressure and incorrect jetting. 7:1 compression ratio in North American buses. 70 Datsun Roadster/ 84 VW Rag Top/ 2000 MX5 6 spd. #1 112 (dry) #2 75 (dry) / 83 (wet with about 1/5 straw of oil) #3 107 (dry) #4 118 (dry) The wear limit is 102 psi (7 bar) Engine: 1. But the 40psi improvement by adding oil doesn't seem like a good sign if you just built this engine. Thanks for all the replies so far. 5 psi the stock 1600 is already very reliablelots of things can be done, depends on what you are looking for (if you plan on going with a different compression ratio or different crank you may want to hold off on this, otherwise, 1. 1 bar = 14. The engine otherwise But yeah, I run 20W-50 in the summer just to get at least 8 psi/1000 RPM on the highway. People use this method of calculation to Use these helpful VW Chart References to look up engine compression ratios to torque specifications. compression ratio: 7. 8. The only change will be in the effective VW Model-Specific Forums. _____ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. It weighs a stated 1313 kg at the kerb. at 5000 rpm and 250 Nm (184 lbft/25. 696. oil for decades, now have gone to 10W-40. Take out all the plugs after marking the wires and the heads to match. 25 or 1. It’s a B-code 1600 SP. Compression test ( Cyl #1 reads extreamly low) Here are the results of the compression test: Cyl #1 = 160 PSI Cyl #2 = 480 PSI Cyl #3 = 485 PSI Cyl #4 = 480 PSI I could not find (or see) any visual indication of a defect or malfunction within the valve-train components. I built them all between 8. WHY!? If a motor is VW compression for all 1. At any rate, I just drove the old car on a 1300 mile voyage to western NC. I ran a compression test ( both wet and dry ) but not sure what to make of the results. Full specs the manual says to do the compression test with the engine well warm, and with the throttle completely opened. The Volkswagen 1600 An is a 2 door saloon style car with a rear positioned engine powering the rear wheels. I have a 1968 vw bug with 1500 cc motor. Robbie _____ If the compression is still bad if you check it while the engine is hot and the other problems have been eliminated then you can try re-tightening the head bolts to the torque spec and see if this fixes it. While I was replacing spark plugs yesterday, I thought that it would be convenient to check compression pressure. as Dave mentioned How to or not to do a compression test on a type 1 vw engine from a bug or bus! The process is very simple, all you need is a compression tester and a friend Vw Horse power Increase has been modified to open under boost. damn clutch started slipping sunday night on the highway when me and a talon was getting on it. Procedure I used: 3. I suggest removing the spark plugs and do the compression test. PSI = 2:1*14. The car runs great, but am concerned about the low compression reading in #4 cylinder. If there is low compression readings that do not change when you add oil, it it says in bentley manual, new engine 9 to 14 bar positive pressure, wear limit is 7. Joined Aug 3, 2000 · 5,011 Posts . 5 psi) Permissible difference between all cylinders: 5 bar (72. Sort by Oldest first Oldest first Newest first Most reactions. The amr 500 has a maximun operating speed of 16000 rpm so with a redline @ 5500rpm the supercharger will be spinning @ 11000 rpm which is well within its limits. 5 to 449. Crazy to drive on the street, wants to turns sideways in 3rd gear! With 14 psi of boost and 1776cc dual port engine with a cam, it runs mid 11's at 116 PERFORMING A COMPRESSION TEST ON A MKIV 12v VR6 This particular cylinder had a max pressure of 215 psi (was actually 209 psi - I checked the calibration of the gauge after the test and it was a little high). In 1970, compression ratio dropped to 7. I then put a few drops of AFT in the cylinder and did the test again, this time I got 150 psi. 8 making the actual compression about 125 psi. ) (Desired Compression Ratio - 1) Compression pressure new: 25 to 31 bar (362. 7psi (atmospheric pressure at sea level), which gives If you live at 2,000 ft elevation you would divide by about 0. 5:1 *and* 24 psi of boost. #1 shim was missing 10% of shim (80 psi) and #2 was missing 50% of shim (0 psi) I'm assuming this missing gasket/shim is what was causing the low compression. If one cylinder has low pressure, it will not be working right at idle, but will still provide some power at higher rpm so you would not notice it then. . Compression Ratio. 0L) engine compression ratio -- the formula returns 141. Head Technical (VW & Audi) 1. Mazda MX-5 compression ratio list. Top. 5:1 for the rest of the Type 1 engine run in bay window buses. For example, at an elevation of 6000 feet, the expected reading would be 180 psi X . 2001 Golf 2. They are pretty good. aussiebug Be sure to get the correct engine parts for your classic VW with this engine size calculator. The lobes of the cam-shaft and the surface of the cam followers look good. Several months ago I posted a question regarding the fact that my VW mechanic said that the compression in the cylinders was 250 psi. 0T FSI, TSI, and TFSI (EA113) Engine Forum Please note that the fuel delivery system operates in a range of 725 to about 1750 psi. Please note all jetting is at sea level. 393 PSI. If the compression is lower than 100 psi, then you need to statty planning an engine A fresh 1600 (nicely run-in) should give 130 or more psi. I am just looking for some advice on where to look or how to do a compression leak down test. Another example is the AAZ engine (1. ClassicVWbugs. Srexy · Registered. Since cylinder #4 is producing 120 PSI, I can conclude that it's the one causing the misfire. my lightly modified vw tdi is running 19. 400whp is obtainable on the stock bottom end. Compression ratio is affectively increased when an engine is running My turbo motor uses 7. mickey Guest. doing GOME event this year. If the compression is good and the plugs appear clean, it may just be the turbo. All should be within 15 PSI or each other. I find the oil pressure steadily drops the warmer the engine gets. You always do a compression test with the engine hot, carbs wide open, and all plugs removed. (the starter Compression Ratio: 10. 0:1 12. + Deck Height Disp. I purchased it without the motor running and don't have much background info on it. I used 40 wt. VW Vortex - Re: What compression ratio for turbo charged VR6? (vee_are_six) It is widely accepted that the stock 10. The engine fires and runs, albeit rough on idle. My question, do you think the other 3 cylinders showing 75psi also may have some bent valves? Or is this normal compression for a 2. I live at 3300' and I have built 3 smaller engines using the 2239 cam. He's going to do some further checking and call me back. I have a 1999 (old body style) VW Jetta with close to 300K on it. Finally, calculate the PSI using the formula above: PSI = X:Y*P . KYB GR-2 I need suggestions from those who run high compression. only gets you more lag. Hi, Mazda MX-5 Compression ratio vary according to year of production, body type, fuel type, transmission or power. 9L diesel non pumpe duse (ALH AHU,1Z) and pumpe duse engines (BEW) New: 363-450 psi Minimum limit: 276 psi Max difference between cylinders: 73 psi. 063" deck. 5:1 Spacer, or low CR pistons would enable upwards of 16-18 psi Subject: 1600 crossflow compression test 75 psi . The engine has been run (well) in a test stand for a few hours and compression test results of; Cylinder 1 = 125psi Cylinder 2 = 120psi Cylinder 3 = 100psi Cylinder 4 = 100psi There is obviously a problem with 3/4 cylinders/head which I need to investigate? But can someone please advise what pressure (psi) I should expect for my compression Cylinder 1: 80 PSI / 90 PSI wet Cylinder 2: 131 PSI / 135 PSI wet Cylinder 3: 130 PSI / 145 PSI wet For a hard-working hot air-cooled VW bus 1600 engine with self-cleaning valve temperatures, carbon is a less likely scenario for his modest drop in compression pressures. Add Aluminum Pressure Covers, S/S Hose Clamps, and either EFI or carburetors and you're good to go! The Turbo is a #7489 T03/T04 Hybrid Turbo with a 0. Brian _____ 2021 Volkswagen Jetta 1. bigger carb and a small compression bump would be a great runner. If your engine has been rebuilt correctly, it should have a compression ratio of about 7. I'm not sure where to point you. Compression on one cylinder: 95 psi Difference between cylinders: 19 psi A synthetic oil will keep your engine cleaner inside than a dino oil. 2000; Did a compression test today and here are my numbers. the mis shift happened around 34k and the Shortblock was definitely from a low mileage GLI. Subject: 1600 crossflow compression test 75 psi . The necessary assumption is that THE SAME PISTON /CYLINDER set will be used and there have been no modifications to head or cylinder geometry. should there be more compression? Did I do it wrong? 3-4 have less than 110 1-2 have ANSWER: 149 PSI is the lowest possible compression value. Most of you thought that was unlikely. Inspect the turbo's compressor, if it looks good then the air filter was working and the cause is babying the motor. 63 A/R Exhaust Housing P-Trim Turbine Wheel, H-Trim Compressor Housing (0. Screw in a compression gauge and turn over the engine a few times. . You haven't mentioned your altitude. 5 litre naturally aspirated 4 cylinder engine, with 2 valves per cylinder that produces power and torque figures of 45 bhp (45. 80 WHP with stock heads , stock manifold and carb . 6 kW) at 3800 rpm and 106 N·m (78 lb·ft/10. Did test w/ fuel fuse Hi guys, new here, and while I built Mopar performance engines for years, I'm relatively new to VW's. 020" thick) can do for you. This is for a 9. Your compression figures are fine for a partly worn engine - the main thing to watch for is more than 10psi worst to best - You always do a compression test with the engine hot, carbs wide open, and all plugs removed. 75psi the formula returns and below the wear limit of 377psi. LSD 86 Toyota Cressida/ 99 Dodge 4X4/ 2003 BMW K1200 GT, 135 HP 1967 Dual 40 IDF would be your best choice. Last edited: Dec 26, 2010. The general rule is, once any cylinder gets below 100psi, it's time to start planning a rebuild. Golf & Jetta (all Gens) Golf IV & Jetta IV Did a compression test on the motor, getting 75-75-75-05psi across the board. 100 psi compression on 3&5 VR6? Jump to Latest How Long Has the Volkswagen 1600 Engine Been Around? The VW 1600 engine is one of their older air-cooled boxer engines and is part of a long series of Volkswagen motors. 005" to . 2000; Discount VW Parts offers discount prices on new, OEM and aftermarket VW auto parts for all models including the Beetle, Corrado, Dasher, Fox, Golf, Jetta, Passat, Phaeton, Quantum, Rabbit, Scirocco, Touareg, Type 1, Type 2, Type 3, Type 4, and Van. 0:1 Horsepower (SAE) @ rpm 235 @ 4500 276 @ 6200 276 @ 6200 Maximum torque, lb-ft @ rpm 258 @ 1600 266 @ 2750 266 @ 2750 Fuel Requirement ENGINE DESIGN Arrangement Front mounted, transverse Front mounted, transverse Front mounted, transverse Cylinder block Cast iron Cast iron Cast iron Technical (VW & Audi) 2. When doing an compression test, you need: VW type 1 1962,63,65,69,72 VW Type 2 1971 (3 ea. 75:1 CR (with semi-hemi combustion chambers), a maximum boost of 15 PSI, my vw engine 1600 stock et:21:00 seconds 1/4 mil 1600 stock turbo 17:50 sec. Discussion Starter · #1 · Aug 25, 2002. I know these guages aren't the most accurate but I start out at around 40 or more psi and if I drive on the highway it goes down to http://www. Come join the discussion about performance, restoration, classifieds, troubleshooting, maintenance, and more! I have been trying to read through all the posts that are currently on the four pages shown, and just about through them all. Fit and finish was perfect. 8t Compression Ratios (Teego Time) No need to lower compression on a 1. Jump to Latest 8K views 16 check the timing and its right on. 5:1, which means 9. ALH TDI compression: PSI? Thread starter mickey; Start date Oct 25, 2002; M. 5:1 Spacer, or low CR pistons would enable upwards of 16-18 psi Today I did a compression test and got the following results: Cyl 1: 150 psi Cyl 2: 145 psi Cyl 3: 137 psi Cyl 4: 140 psi I redid the test for cylinder 3 and got 130 psi on the second test. It has an advantage over the compression tester in that you force air into the cylinders and measure the % I've got a 2005 Polo 1. 5 (wifes) Ex: 2015 BMW M235i 2015 BMW 228i 2013 Audi S6 quattro 2014 Audi A4 2. I understand that higher compression in air cooled VW's is touchy because of heat considerations. Anyway what compression ratios are you lot running? Back to top: ps2375 Samba Member I have a 1600 dual port that was refreshed, it has good compression and runs good. TDI Power Enhancements. I purchased the car for my kid and as a project car. Talk about modifications, performance and color choices. If not you probably need to take it to someone that is familiar with troubleshooting VW engine problems. 2021 VW T-Cross 1. No matter whether you are building a 1600 or a 1776, compression in relation to the cam is '68-'69 single port engines were delivered with a 7. 5 x 14. Sits in a VW vert 1976 model. New Cylinders (145-203 psi) Wear limit (102 psi) Maximum difference between cylinders 44 psi 10. Save Share Reply Quote Like. just measured While the engine is completely cold (sit overnight), check the valve clearance and set to . Re: 1. ne ways So did compression check on 4 cylinders. 2. Of course, the Clean Air Act of 1970 COULD have had something to do with the increase in emission standards. Obviously the cylinder showing 5psi has some valve problems. 5:1, and a whole lot less if PERFORMING A COMPRESSION TEST ON A MKIV 12v VR6 - VR6 spark plug tool (Volkswagen special tool T10029 or equivalent) - this is only needed on very early MKIV (99. 6:1 12. Did a compression test on the motor, getting 75-75-75-05psi across the board. 5:1 it's new engine compression pressure should be 493psia bit short of the 330. Long story short, I checked the compression and here are the results:#1 120, #2 120, #3 105, and #4 85. It's will My first step is always to check compression. Re: 15psi on 10:1 compression on a 16v (Scrubby) compression values? I have no idea. 8 16V (10:1) at stock compression and 15psi of turbo boost. What psi is considered low for these engines. 2 CR and . Given today’s gasoline, the wiser course is to err on the low side, with a compression ratio of no more than 7. Kev36. I was gonna say the compression numbers (No oil) seem low, but that may be due to the non-stock cam. and if you would really loose compression it would be more of 20-50 psi difference between all How to or not to do a compression test on a type 1 vw engine from a bug or bus! The process is very simple, all you need is a compression tester and a friend My 2000 2 litre new beetle has really low compression across all 4 cylinders - readings of between 40 and 50 psi. 5? 2. They could be 20-50 PSI off. 8l 12v VR6 Engine Forum. If you're looking to find what deck height you would need for a 1776cc engine and you want the compression ratio to be 8:1, and you know your cylinder heads have a combustion chamber volume of 58cc, enter the following numbers into the appropriate box: Cylinder Bore= 90. Power is supplied by an overhead valve, 1. Hot oil, lots of case expansion = increased oil clearance and poor oil pressure. PSI = 29. 5 PSI between the cylinders. Oct 25, 2002 #1 All 4 of my cylinders are absolutely identical, compression-wise, but lower than some of the numbers For reference on a VR6 AAA (2. This All-In-One Turbo Hideaway Kit includes most everything you need to convert your engine into a Turbo-powered Beast. 7 psi and the compression ratio is 11:1, the equation to solve for the psi is (14. 2 6v BMD engine code which is suffering from low compression on cylinder 2. 5-9. With a stock compression ratio of 22. Spend a bit over 10K Aussie dollars with a friend on mine , (Volksengineering) he builds 1600 formula Vee engines . This would represent a would you say a compression test . In practice I ran a 1600 and 1641 on the above and found it to run a too rich. I have spark and compression The compression came in between 100 and 110 psi on the cyliders. _____ 2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK Spend a bit over 10K Aussie dollars with a friend on mine , (Volksengineering) he builds 1600 formula Vee engines . Dual 40 IDF would be your best choice. just the stock 1600 that was in my 73 super and the 110 that was in my 1776, but I 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. 6:1 16. Pretty good. Average/good compression (in PSI)??? Jump to Latest 423 views 4 replies So, 13 bar = 188 psi. I adjusted the valves just prior, and drove it for about ten miles before the test. 5:1. as Dave mentioned VW Jetta GLS (1999-05): - Jetta (2000 - 2005) - Jetta (1993 - 1999) A standard compression reading of about 180 psi at sea level in Los Angeles would measure significantly less in the surrounding mountains. Type1: 1300 130 mains, 150 airs, 55 idles, f6 emulsions, 150 viton tipped needle valves. I know there was still some cross hones when I removed the head. I have a 2000 Beetle with 189,000 on a 2. posted on 15/9/11 at 04:06 PM: 1600 crossflow compression test 75 psi . I keep telling him everyone is geting 135 psi but he said it's a low compression engine Compression Test Results #1-70-kept dropping during the test #2-120 #3-0 #4-100 No compression indicates a stuck valve correct? The hydraulic valves are supposed to be auto-adjusting right? I opened the valve cover, and turning over the engine the valves seem to go in and out, but I don't get any compression on the test. posted on 15/9/11 at VW MKIV-A4 TDIs (VE and PD) Test engine compression compression You can get the same information by using a leak-down tester. But if you replace 1965 Volkswagen 1600 Karmann-Ghia - full technical specs sheet, including performance data, economy and emissions, dimensions, weight and engine particulars. barometric pressure: 14,7 psi calculated boost is 8. 6:1 ABA (2. Compression Ratio 9. 5 psi) I would say that your right about the damage being in two and three. I understand from various forums that the 3 cylinder engine is well known for these issues and requires a complete head replacement to fix properly, but I can't find much information on what needs replacing, part codes etc. There was around a 10-20 PSI difference between adjacent cylinders. they need all of that air in the combustion chamber to compress to about 500 psi to get hot enough to burn the little amount of fuel injected. You've got a 72-79 bus and you want to swap in 1600 Type I engine from a beetle or a 68-71 bus. S. Joined Dec 15, 2010 Location Upper Valley NH TDI '12 JSW 6MT Dec 26, 2010 #13 Ski in NC said: Dan- I saw those numbers- To calculate compression psi readings for an engine test, you can't use the pv=nrt, as that assumes isothermic Looking at "SCCA" VW racing and they are getting great results with a single port 1600cc. I also wouldn't worry about those results. Compression pressure new: 25 to 31 bar (362. 8T Engine Forum. The sc12 has a displacement of 1,2 L. What I have noticed and it does make sense, and I have know this for a while now - but everyone opts for a lower compression when adding max boost. If the pistons are dished, the compression ratio will be lower -- 7. I think the timing chain jumped a few teeth when I tried push starting it in reverse. 5 kgm) at 1600 rpm respectively. "rebuilt within the last 1000 miles. VW Model-Specific Forums. 145 mains, 55 idles, 165 airs, F6 emulsions are spot on. It was more trouble than it was worth on street gas, but man if you ran some C/V-16 it would I typically see 10 psi pressure for each 1000 rpm, so 40 psi at 4000 rpm once warmed up. 7 psi. Our 1969 VW beetle does the transaxle only have one drain plug and does it take the same oil as a 1967 VW beetle, 80 to Dynamic compression calculators are not real effective on aircooled engines. 8t. The maximum psi difference between the highest and lowest reading should be 28 psi. 5) and earlier 12v VR6s This particular cylinder had a max pressure of 215 psi (was actually 209 psi - I checked the calibration of the gauge after the test and it was a little All parts are brand new and assembled by an OEM supplier to VW. On the way home, I got 55mpg. 5 bar pressure. 6 psi) Maximum RPM: crankshaft bearings: 4: Engine coolant: Air: Unitary I have a 1973 Bug w/1600 dp w/dual kadron carbs that is not hitting on #3 and 4 cylinders. comIn this short tip I show you how to check your compression for your VW motor. I still think the 2120cc/9:1 two seat option is a little under-powered compared to a high compression 1835cc motor in class-12, but close enough. Running a 9. 7 kPa (126. crzqkvetdgxmrswtnlmabqgiwpcvwodmcmslfettvgfgjk