H22A build
04-18-2011, 09:08 AM
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H22A build
I have a 94 prelude si with a jdm h22a swap in it i really want to build this car up to 320 - 350 hp and i have read up on alot of builds. there is one thing i am still not sure about can i bore it 25 over or not. i know ill have to resleeve it and i want to put je pistons and eagle h beam rods in it. i also want to know weather i should run high compression pistons or low compression if i want to run 10lbs or more turbo
04-18-2011, 09:44 AM
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Re: H22A build
1 mm = .03937 inches
10 over = .010 inches larger
25 over = .025 inches larger
So an 87 mm stoke bore with a 25 over would equal 87.635 (rounded). I'm pretty sure my math is right...
Most sleeve kits for the H22 can handle up to a 90 mm bore. Just tell the shop you want the sleeves bored to 89 mm. With compression on a turbo application you want to go lower, like 9:1. If you only plan on running 10lbs of boost, the stock compression of 10:1 would be fine too. (I'm not sure if the JDM H22 has the same stock compression as the USDM counterpart)
10 over = .010 inches larger
25 over = .025 inches larger
So an 87 mm stoke bore with a 25 over would equal 87.635 (rounded). I'm pretty sure my math is right...
Most sleeve kits for the H22 can handle up to a 90 mm bore. Just tell the shop you want the sleeves bored to 89 mm. With compression on a turbo application you want to go lower, like 9:1. If you only plan on running 10lbs of boost, the stock compression of 10:1 would be fine too. (I'm not sure if the JDM H22 has the same stock compression as the USDM counterpart)
04-18-2011, 10:37 AM
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Re: H22A build
I would agree with this as well; run a 9:1 CR. As far as the stock CR on the JDM motor....I believe it is higher (10.6:1) than the USDM motor.
04-19-2011, 09:23 AM
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Re: H22A build
my check engine light keeps flashing when im driving but it never gives me a code the shops around here dont know whats causing this issue would anyone on here no anything about this by chance
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04-20-2011, 06:18 PM
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04-20-2011, 06:57 PM
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Re: H22A build
I can't believe with how old these cars are people still don't know the compression on the stock engines...
USDM H22a1 10:1
JDM H22a 10.6:1
Type S, Euro R, SiR S-Spec 11:1
USDM H22a1 10:1
JDM H22a 10.6:1
Type S, Euro R, SiR S-Spec 11:1
04-20-2011, 07:35 PM
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Re: H22A build
If I remeber it's 190hp(USDM) 200hp(JDM) 220hp(type-s)...
Go easy on us dumb people man!
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