k20z3 compression test numbers|Interpret my Compression/Leak Down Results! : purchaser I decided to do a compression test on my car yesterday just because. Here is what I found. (2010 Si, stock K20Z3 with 72,000 miles on it.) Cylinder 1- 80psi. Cylinder 2- 85psi. . WEBbazrof bazrof.com
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what is my compression supposed to be at?
Cams would/ could absolutely change your numbers! Increasing or decreasing the length of time your intake and exhaust valves are open simultaneously (overlap) can adversely or favorably affect compression.
If the engine shows no signs of issues and the compression test numbers come out .
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I decided to do a compression test on my car yesterday just because. Here is what I found. (2010 Si, stock K20Z3 with 72,000 miles on it.) Cylinder 1- 80psi. Cylinder 2- 85psi. . So I am getting ready to go turbo and I am selling my K24 for a stock K20Z3. I got a potential motor compression and leak down tested today with these results: 1 - 135. 2 - 132. . Those compression numbers are fine. Not too much variation between cylinders. I’ve seen over 200 on each. If the numbers are low (below 150) put a bit of oil down the spark .
06’ SI K20Z3 did a compression test and these are the results. Anyone know what they should be? Google answers are all over the place. The variance in cylinder 4 is a bit concerning. I . If the engine shows no signs of issues and the compression test numbers come out fairly close to each other, the engine is good. If it really is bothering you that much, do a cylinder leakdown test.
looks fine to me and 225 whp is a healthy number for bolt on mods given you usually won’t see more than some 170-175wHp in stock form. Any further significant gains need higher compression ratios and higher revs with . The K20Z3 has a compression ratio of 11.0:1, which allows it to extract more energy (and horsepower as a result) from the internal combustion process. While a high compression ratio is good for N/A power, it typically isn’t . A. Allmotorz3 Discussion starter. 9 posts Calculation: Several processes are detailed online for analyzing compressor maps and selecting the proper turbo for your application. The system used here takes a slightly different approach to maximize the range of .
The Honda K20Z3 engine boasts a compression ratio of 11.0:1, which allows it to produce 197 horsepower (147 kW) at 7800 RPM and 139 lb⋅ft of torque at 6200 RPM. . The Honda K20Z3 engine is equipped with a number .K20z3 compression test. Can’t seem to find what the numbers should be in a healthy motor. Google answers are all over the place. I used an old cheap tester. Maybe I’ll get a new one and retest. The variance in cylinder 4 is a bit concerning. Share Add a . did a compression test last weekend and got: 1 - 175 2 - 150 3 - 150 4 - 150 should i be worried about these low numbers? everywhere i see compression numbers of 200+ across the board. engine was hot, WOT, all plugs removed, injectors disconnected, each cylinder cranked 4-5 times. i did not do a wet test. To get an accurate estimate of the BSFC for the K20Z3 I used the known hp number published on the Honda website (197 hp @ 7800 rpm). Amazingly, the result was 218 g/kW*hr. The average four stroke gasoline engine has a BSFC of 322 g/kW*hr! Having a BSFC as low as 218 is usually only found in diesel engines!
Worst Compression Test Numbers on a Running K20?
Updated k20z3 dyno results
k20A2 compression test numbers? Jump to Latest 12K views 4 replies 3 participants last post by rhy001 Jun 29, 2008. rhy001 Discussion starter 142 posts 06’ SI K20Z3 did a compression test and these are the results. Anyone know what they should be? Google answers are all over the place. The variance in cylinder 4 is a bit concerning. I used an old cheap tester. May get a new one and retest. . I am considering supercharging it and pushing for some power numbers. But was trying to determine . We walk you through a compression test, a great way to determine the condition of your valves and piston rings. By Ben Wojdyla Published: Dec 28, 2012 9:00 AM EST. Save Article.
After long nights wrenching on the FA5 trying to get her back into time . we have finally done it . it has been a long time coming and I couldn't be more.
Cylinder compression test kit: https://amzn.to/36phiPiSpark plug magnetic socket: https://amzn.to/3cZf5MN Join Honey: https://www.joinhoney.com/ref/bhexqw2Ea. just use the k20z3 head if you're running a k20 block. on some k24 setups, the k24a2 head and intake manifold were more beneficial. . WTB 12.5+compression piston 88mm bore. Save Share . is there casting numbers on the heads to identify which is which? am i able to rev the k24a2 head to 9k on a k20z3 short block? Save Share For the leak down test I made sure the piston was at top dead center on the compression stroke. I put 100psi of air in and three of the cylinders were all above 85psi (so that would mean above 85%) and the cylinder in question was at 35psi (so 35%). Compression test numbers (SBF 289) Jump to Latest 11K views 4 replies 3 participants last post by 65FalconLover Mar 5, 2008. 6. 65FalconLover Discussion starter 1478 posts
k20z3 all motor build. Jump to Latest . why do you want atleast 12.5 compression? that should be the most you want on pump gas . Save Share Reply Quote Like. ainokea_si Discussion starter 439 posts Skunk2 valves high compression 440 injectors Skunk2 cat back 70mm RBC ported Skunk2 70mm throttle body . Stock Bottom End K20Z3 (08 Honda Civic Mugen SI #67) . Blue Print Stage 2 Cams @ 34 VTC Supertech Springs & Retainers Header: Kidd Dominator w/ 3" Test Pipe Intake: AEM Cold Air Intake (Hollowed out MAF Plastic, on MAP via Flashpro .2 k20z3 motors. 0 . Have compression test numbers that can be provided. Selling another k20z3, Unknown miles. Was told timing jumped. Haven't inspected motor. Still fully intact. Good for frank set up. Obo for both or trade for fa5 parts or k series go fast parts. Can drop off for a .
It was produced in 2005 and 2006 years. Here you can find the same PRB intake manifold, but a new exhaust manifold, high-performance camshafts, and increased up to 11.0:1 compression ratio. The i-VTEC system is engaged at . Compression test on k20z3 need help. Jump to Latest 21 - 32 of 32 Posts. 1 . The compression test is an important marker in this asse. On a newly purchased used engine, it is important to make an assessment of the health of the engine. Hello! I am currently on the hunt for this engine, talking to many junk yards in the process. Besides the fact that I wonder if they really are taking a compression test, the numbers I am getting are all over the place. Has anyone in this forum done a compression test on a known good engine, that could share some values with me? Thank you!
K20z3 dyno results
One of the Bmw techs bought it and the engine fired up right after gaining compression. I looked at the car today and had a compression test done on a cold engine. Cylinder 5 had 110psi on the second time. The guys asking 00 lack of service history and the compression numbers are low despite the cold. The car has now 144k miles. Maybe try 10:1 compression though? I think 9:1 is a little low. FS: Forged Internal k20z3 Bottom End - FS: Modified Fuel Cage for Return and Crank Pulley - My Turbo Build. Save Share Reply Quote Like. vtecfred Discussion starter 1214 posts
As others have stated, any adjacent cylinders that share low compression could be a head gasket problem etc. Still the cranking compression test is just one diagnostic test. A Cylinder Leak down test is the best for determining if a cyl has a bad piston, valve, cracked block etc. Good luck with your issue. K20Z3 (2006+ USDM Honda Civic Si) Displacement : 1998 cc Compression : 11.0:1 Power: 197 bhp (147 kW) @ 7800 rpm (SAE NET Rev 8/04) Torque: 139 lb-ft (189 N*m) @ 6200 rpm (SAE NET Rev 8/04) Redline: 8000 rpm Bore: 86.0 mm Stroke: 86.0 mm Valvetrain: 16-Valve DOHC i-VTEC Throttle body: Drive-by-wire Intake Manifold: RBC K-series engine specs .
Comparison With Other K20 Family Engine Like K20Z1 and K20Z3. The Honda K20Z2 engine is part of Honda’s K-series engine family, which includes several other engines, such as the K20Z1 and K20Z3. Here is a comparison of the three engines: . With a compression ratio of 9.8:1, the K20Z2 engine produces 153 horsepower at 6000 RPM and .
Your compression test numbers depend on which model 944 you have. Minimum readings on the compression gauge should be as follows: 944 Turbo - 120# 83-86 944 - 140# 87 - 88 944 - 150# 944S, S2 - 160# After a rebuild, your initial compression number should be less than your second compression test (just as you indicated).The engine's valves, piston rings, cylinder walls and head gasket must all be in good condition to hold compression. A leak down test will allow you to troubleshoot a low compression cylinder. Jump to Leak Down Test. Compression Test. Special Tools: Besides the compression tester you will need a 5/8" (16mm) spark plug socket. In a pinch you can .
2. Due to the lower compression of these engines they did not like the bigger 3 lobe camshafts and vtec wanted to engage very late. 3. We didn't check but would be very confident that the engine would not pass an emissions test. The second main type of head is the 3 Lobe vtec head which comes on the higher bhp models.
K20Z3 Turbocharger Analysis Turbo Maps
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k20z3 compression test numbers|Interpret my Compression/Leak Down Results!