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Thread: should i sleeve my gsr bare block?

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    c-ya sirhatch1030's Avatar
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    apm in forrest park , im not advertiseing, im trying to hook people up ,let them know of a place thats not out of state, and on that note of advertiseing we r a good machine shop and i would like to let people know, just like u let people know of your place . so stop bs,ing on my replies plez.

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    www.MSSRACING.com SPOOLIN's Avatar
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    ill add my 2 cents in. PSI has very little to do with safety of the sleeves in a physical sense. The pressure your sleeves see under normal combustion is a lot more than the added pressure from your turbo. what usually happens that blows stock sleeves is leaning out, and letting the hot charge from the turbo predetonate. ITS HEAT, and it will split your sleeves. at the track, my stock sleeves see 28 psi everytime i run, it only hits it for a second and drops down to about 26.5 which i dynoed 515whp at 25 psi on my stock sleeves. ive seen as high as 675whp on stock sleeves with a larger turbo running 27 psi. larger turbo means more volume of air. Your sleeves can handle the power, a great deal of it. they just cant handle the predetonation stress, because it gets everything out of the groove and makes shit wanna come apart. Aftermarket sleeves are basically a fallback to errors in tuning that will cause detonation, or racing in the heat. I recommend sleeves even though im not running them, but I will have golden eagle sleeves for next season.
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    Certified Gearhead miro_gt's Avatar
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    I think I talked with you about 3 weeks ago at the meeting at North Poing Mall ... you said you're making ~380WHP at 18psi with Hondata s100, right ? I'm having the black 95 Civic with a turbo D in there ..

    anyways, to your question

    everyone knows that detonation kills motors .. so at what power level you can expect to see it with a good tune - well with your B18 build block I think you can go as far as 400 to 450 WHP max at whatever PSI that happens with pump gas. As far as the sleeves are concerned - those can get busted at 6psi, and they can work fine at 26psi .. So as long as you keep the good tune they should be fine. IMO, you are looking at about 22psi for those power goals above.

    As I remember you said that you're not tuning your motor by yourself, but make sure your tuner go no more than 11:1 A/F, and go conservative with the timing - that's the most important in the tune

    Miro

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    Vuong's Garage Vuongy_Dong's Avatar
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    Quote Originally Posted by miro_gt
    I think I talked with you about 3 weeks ago at the meeting at North Poing Mall ... you said you're making ~380WHP at 18psi with Hondata s100, right ? I'm having the black 95 Civic with a turbo D in there ..

    anyways, to your question

    everyone knows that detonation kills motors .. so at what power level you can expect to see it with a good tune - well with your B18 build block I think you can go as far as 400 to 450 WHP max at whatever PSI that happens with pump gas. As far as the sleeves are concerned - those can get busted at 6psi, and they can work fine at 26psi .. So as long as you keep the good tune they should be fine. IMO, you are looking at about 22psi for those power goals above.

    As I remember you said that you're not tuning your motor by yourself, but make sure your tuner go no more than 11:1 A/F, and go conservative with the timing - that's the most important in the tune

    Miro
    It made 411whp @ 18 lbs. I dont remember talking to you at northlake. what do you drive again?

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    Certified Gearhead miro_gt's Avatar
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    this


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