Toyspeed.org.nz Message Board

by **BigDon** » Thu Jul 13, 2006 9:26 pm

Hi,

I am looking at a 1992 MR2 Turbo on trademe http://www.trademe.co.nz/Browse/Listing ... d=61821137 and the guy says it has 95psi compression in each cylinder. This seems pretty low to me.

I acknowledge it could be a poor quality gauge or one with a long hose that creates additional chamber area and I know the psi rating can alter with cam profiles and actual compression ratio. But comments appreciated as to what a 3SGTE should be.

by **toyrollin** » Thu Jul 13, 2006 10:48 pm

i've seen quite a few 3sgte's now all with fairly low compression, for example i can very easily manually turn the motor over with socket and power bar on crank pulley with great ease 95psi seems average

no grip · by **Akane** » Fri Jul 14, 2006 1:19 am

they should dial in at 165psi~ ish on a healthy engine across all 4
95 seems dodgey, probably a broken gauge?

by **Adamal** » Fri Jul 14, 2006 1:27 am

95 is piss poor. I'm wondering if somethings gone wrong since having it dyno'd and thats why he's selling it....

no grip · by **Akane** » Fri Jul 14, 2006 9:23 am

Mind you, the same guy could be reading these forums now and go "ahhh, damn, now I can't sell my car

"

by **sergei** » Fri Jul 14, 2006 9:25 am

or compression was measured by a lamer on cold car with throttle closed, and sick battery....

by **Lloyd** » Fri Jul 14, 2006 10:09 pm

Probably the more likely option. Strange for an engine to lose compression on all cylinders and stay very even.

by **BigDon** » Sat Jul 15, 2006 1:33 am

The guy reckons 95psi is standard.

no grip · by **Akane** » Sat Jul 15, 2006 2:20 am

The guy reckons wrong.

by **sergei** » Sat Jul 15, 2006 10:53 am

The guy probably confused 95psi with 9.5bars (which is more likely to be compression of 3S)..

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Expected Compression from a 3SGTE

Expected Compression from a 3SGTE

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