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#1
02-26-2005, 03:19 PM
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ideal compression ratio
I have a h22a1 (VTEC) engine in my 4th gen lude and am looking into buying some new pistons and sleeves. I have future plans of turboing it but for now im going NA. i am getting cam gears and cams from crower and also new valve springs and titanium retainers. I dont know wat the stock compression ration is but I need to know what it needs to be in order to get the best results and performance out of my mods. any help appreciated!
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#2
02-26-2005, 04:33 PM
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Re: ideal compression ratio
10:1
__________________
2001 Honda Prelude DOHC VTEC  AEM CAI Custom exhaust w/ Fireball Muffler
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#3
02-26-2005, 04:36 PM
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Re: ideal compression ratio
Well, if you choose NA pistons (usually around 12.0:1), you can't turbo it later down the road. Much like if you chose turbo pistons (~8.0:1), you'll have little power without a turbocharger. You have to pick one or the other.
__________________
 1993 Mazda Rx-7 Touring Ricer Extraordinaire
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#4
02-26-2005, 04:48 PM
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Re: ideal compression ratio
If you're getting cams, make sure they can also be used for boost. Otherwise you'll end up changing them when you do finally go turbo. Allthough I don't believe it's possible to get cams that fit both application. With NA, it's good to buy cams that have overlap. However, having overlap on a turbo application is not such a good idea. It's harder to pressurize the cylinders.
__________________
2001 Honda Prelude DOHC VTEC AEM CAI Custom exhaust w/ Fireball Muffler
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