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how big of an overbore could i go without sleeving the block???

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Old 10-31-2005, 11:12 PM
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Default how big of an overbore could i go without sleeving the block???
this will be "semi-built" for boost im tryin not to sleeve my block...it's a dohc zc so i need to know how big of an overbore could i go without sleeving the block
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Old 10-31-2005, 11:40 PM
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Default Re: how big of an overbore could i go without sleeving the block???
Originally Posted by 2stockrocketz
this will be "semi-built" for boost im tryin not to sleeve my block...it's a dohc zc so i need to know how big of an overbore could i go without sleeving the block
Honestly it would be a negative to bore the motor, you would gain minimal hp while increasing the risk of cracking a sleeve substantially, if you HAVE to bore it, go as little as possible
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Old 10-31-2005, 11:41 PM
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Default Re: how big of an overbore could i go without sleeving the block???
everybody says no more than .40 so i went .20 to be super safe
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Old 10-31-2005, 11:44 PM
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Default Re: how big of an overbore could i go without sleeving the block???
on tock sleeves with no support i would not overbore the engine.
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Old 10-31-2005, 11:51 PM
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Default Re: how big of an overbore could i go without sleeving the block???
20 is as much as I would bore over stock sleeves.
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Old 10-31-2005, 11:52 PM
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Default Re: how big of an overbore could i go without sleeving the block???
.20 over and post that bitch
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Old 11-01-2005, 03:41 PM
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Default Re: how big of an overbore could i go without sleeving the block???
Originally Posted by B18TurboEF

Honestly it would be a negative to bore the motor, you would gain minimal hp while increasing the risk of cracking a sleeve substantially, if you HAVE to bore it, go as little as possible
yeah im asking .....but i only plan to bore what i have to(im not tryin to bore for fun)
Originally Posted by 91efate
.20 over and post that bitch
yeah im still lookin into block posting....and it looks like everyone is sayin .20 over so im gonna try to stay in that area....thanks guys
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Old 11-01-2005, 06:02 PM
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Default Re: how big of an overbore could i go without sleeving the block???
76mm (.040") works fine for NA, dunno about boost though.......
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Old 11-01-2005, 06:06 PM
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Default Re: how big of an overbore could i go without sleeving the block???
Originally Posted by Mista Bone
76mm (.040") works fine for NA, dunno about boost though.......
i need to know for a boosted motor
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Old 11-01-2005, 06:29 PM
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Default Re: how big of an overbore could i go without sleeving the block???
I went 76mm. It was fine untill I tried to tune it myself. :1
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