JDM H22

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Jan 11, 2005 | 05:21 AM

mikester_91

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From: Springfield, MO, U.S.

JDM H22

Ok, I was wonderin if anybody could explain the 10 horsepower difference between the 4th Gen USDM AND JDM engines. What made the JDM's have 10 more?

Jan 11, 2005 | 05:31 AM

chriscantskate

Joined: Jan 2005

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Re: JDM H22 (mikester_91)

for one, the jdm has 10.6:1 compression compaired to the h22a1 with 10.0:1. not sure of other differences, i know theres some emmissions stuff.

Jan 11, 2005 | 10:05 AM

prelittlelude

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Joined: Nov 2002

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From: northern DRUNKit, ma

Re: JDM H22 (mikester_91)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mikester_91 »</TD></TR><TR><TD CLASS="quote">Ok, I was wonderin if anybody could explain the 10 horsepower difference between the 4th Gen USDM AND JDM engines. What made the JDM's have 10 more?</TD></TR></TABLE>

its to due with the slight raise in compression, and probably a slightly more aggresive fuel/spark map with the jdm ecu, because the have higher octane gas as a minimum than we do..

and its only 10hp at the crank, that is pretty negligible