D15b7 Compression ? in PSI or KPA please help!

**Sexc86** · 28-10-2006 05:44 PM

Hey guys

Wondering what the normal compression is for a D15b7 Engine, Manual, out of a 94 Eg Sedan GLI. Either in PSI or KPA

Cheers all

Regards Lyle

**gambate** · 28-10-2006 06:04 PM

just make sure all 4 cylinder has similar compression readings

**Sexc86** · 28-10-2006 06:58 PM

Yes 10% within each other, but what is the actual reading?

**saxman** · 28-10-2006 07:23 PM

generally will vary with each set up, each testing rig, etc... that's why percentage is important, not the specific value

**czy_sol87** · 29-10-2006 08:24 PM

Originally Posted by saxman

generally will vary with each set up, each testing rig, etc... that's why percentage is important, not the specific value

this is what i dont understand, mine is a b16a2 VTEC and my compresstion, is 160, 160, 155, 155. that is within 10% of each other, but what i dont get is that most other vtec motors have 200+psi of compression, can someone explain that??

**gambate** · 30-10-2006 12:49 AM

mine is 165, 165, 165, 165 on b18cR with toda B cam
the cam's profile will affect the compressions too, i think...

**saxman** · 30-10-2006 05:19 AM

Originally Posted by czy_sol87

this is what i dont understand, mine is a b16a2 VTEC and my compresstion, is 160, 160, 155, 155. that is within 10% of each other, but what i dont get is that most other vtec motors have 200+psi of compression, can someone explain that??

think of it like a dyno... results will vary with each one, from day to day, from dyno to dyno, etc... what is important is the relative percent