Honda-Tech - Honda Forum Discussion - itr compression ratio..

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p-boy

Jan 20, 2003 08:08 AM

itr compression ratio..

im buying a jdm motor itr.. how much compression should i look for? i mean in the gauge it will sayo something like 180 or something how do i convert it to like 11.5 or something?.. and whats the stock compression ratio of the jdm itr motor? in psi plsss..

b18cya

Jan 20, 2003 08:36 AM

Re: itr compression ratio.. (p-boy)

http://www.bseries.net/html/specs/benginespecs.php

B18C 96+ Spec-R /
98+ Spec-R JDM 96-00 Integra Type-R (JDM)

1797cc
DOHC VTEC
11.1:1 c.r.

sgT	Jan 20, 2003 10:35 AM

Re: itr compression ratio.. (p-boy)

Quote:

you cant convert compression test numbers into an actual compression ratio.
Too many variable factor in which make it near impossible to guess.

Just look for around 200-220 on the comp tester and make sure all 4 are within 5-10 of each other

leadfoot78

Jan 20, 2003 10:45 AM

Re: itr compression ratio.. (sgT)

If its out of the car cold and motor is turned by hand look for 130-150 psi. Thats what my JDM GSR did when i turned it by hand after i put it in the car turned it on warmed it up and turned it with the started it did 220/210/215/215.

1bad-eg

Jan 20, 2003 02:00 PM

Re: itr compression ratio.. (p-boy)

Itr block should be at about 240 psi.

p-boy

Jan 20, 2003 03:26 PM

Re: itr compression ratio.. (1bad-eg)

well? guys? 220 ? or 240? if i turn it by hand?

leadfoot78

Jan 20, 2003 10:13 PM

Re: itr compression ratio.. (p-boy)

The manual says that 184psi is the minimum so if you are above 200psi it's fine.

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