quick and easy compression testing
- ovendenk
- Supporting Member
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- Location: Kamloops, BC
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the klze should be 210psi, the k8 should be 195psi, and the b6 should be 185psi. the limits of tolerance are +/- 10% for each cylinder and you have to make sure that there is not more than 30psi difference between any 2 cylinders.Billyd wrote:So what is true "good" compression? Anyone find out? Do they have that compression tool at AutoZone also? I'll have to check.
kevin (aka The Oven)
93 mx-3 GS KL-ZE with KL31 cams and properly chipped ecu
All mods are on my website: http://ca.geocities.com/ovendenk
MX-3.com Worklog: http://www.mx-3.com/phpbb2/viewtopic.php?t=48462
93 mx-3 GS KL-ZE with KL31 cams and properly chipped ecu
All mods are on my website: http://ca.geocities.com/ovendenk
MX-3.com Worklog: http://www.mx-3.com/phpbb2/viewtopic.php?t=48462
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- Senior Member
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- Location: El Paso Tx U.S
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Re: quick and easy compression testing
really? i got 180 all across the board :/ i had 190 like 1 year ago.
162 whp at the dyno.. hmm
its just a worn out ze i guess.
162 whp at the dyno.. hmm
its just a worn out ze i guess.
-hec
MX-3 w/ curved neck millenia klde, boosted @ 5 psi. /bov and wastegate are good!/ nitto drag radial/ gutted interior/ millenia red top injectors, vortech fmu/aem wideband/ all bolts ons/ Car put together 100% by me. Mechanic? who needs a mechanic? ew.. real men work on their own cars!
MX-3 w/ curved neck millenia klde, boosted @ 5 psi. /bov and wastegate are good!/ nitto drag radial/ gutted interior/ millenia red top injectors, vortech fmu/aem wideband/ all bolts ons/ Car put together 100% by me. Mechanic? who needs a mechanic? ew.. real men work on their own cars!
- Nd4SpdSe
- Senior Member
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- Location: Québec City, Quebec, Canada
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Re:
That does that do if it is?ovendenk wrote:make sure that there is not more than 30psi difference between any 2 cylinders.
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
Re: quick and easy compression testing
probably just build up on the valves not letting them seal correctly....ovendenk wrote: should i be concerned with the 20psi difference between #2 and #1?
- Daveb
- Regular Member
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- Joined: April 12th, 2009, 12:32 pm
- Location: Eastern townships, qubec, canada
Re: quick and easy compression testing
As far as I know a compreesion test s/b done with a warm engine, plugs out, to get optimum results. You might find that your psi difference between cylinders is less with a warm engine. sounds like good numbers to me anyways. Since you havent started your engine up, you may have a little more or less oil in some of your cylinders.
1994 GS 5 speed 1.8, fresh black paint, flowmaster muffler & Little smelly pine tree
1993 RS 5 speed SOHC with 89,000 original KMs! (rising fast though).
1994 RS 4 cyl auto- running parts car with 104,000 KMs
1993 RS 5 speed SOHC with 89,000 original KMs! (rising fast though).
1994 RS 4 cyl auto- running parts car with 104,000 KMs