1g question

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1g question

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1g question - 2/7/2008 8:29:16 PM

estraw

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my friend just bought a 1991 awd talon for a grand, (e3b16g, 650 injectors, afc fuel management (not neo) walborough 255, full apexi exhaust, stock side mount, etc) thing is, the kid he bought it from melted a piston running 20 psi-ish on it a few months ago. one of the cylinder walls was scored, so were tearin it apart and he's gonna get the block bored to a .040 overbore (since its been bored .020 over before already the last time it blew up.) the stock compression ratio is like 7.something:1, but we were lookin on buschurs website and saw they sold 8.3:1 pistons ( these.. with wrist pins and rings included) for just under 500 bucks. how much boost would he be able to run safely with these pistons and the given mods with a good tune?

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RE: 1g question - 2/7/2008 9:42:28 PM

Sebba

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Those pistons... good rods... I say about 550whp and a max boost of mid-low 30s.

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These cranks are made for walkin'''', and thats just what they''''ll do, one of these days these cranks are gonna walk all over you

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RE: 1g question - 2/8/2008 6:04:38 AM

TheEngineer

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Sebba are you serious?! over 30psi on a 16g. Come on. I wouldnt run moer than 24psi on that turbo. However right now your weakest link is that SMIC. With that still in there your really risking running anything more than 20psi

< Message edited by TheEngineer -- 2/8/2008 6:09:40 AM >

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ORIGINAL: pilsenblue
Even tho My car looks great It will never be fast. Kinda like a hot girl that dosent give it up

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RE: 1g question - 2/8/2008 6:32:23 AM

estraw

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those are forged pistons tho? it didnt say anything about them bein forged. but with the stock head (just p&p) with those pistons and a decent set of rods it would be able to handle about 20 on the smic? i told him his first 2 mods should be a fmic and a wideband. he's already got the afc fuel management like i said

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RE: 1g question - 2/8/2008 6:38:56 AM

TheEngineer

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Yea those two things really are needed. And i think i would stay at about 18psi until you can really tune it with the wideband. But thats just me. The last owner probably ran it way too lean. And i wouldnt want to risk it till you got the wideband and tuned

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quote:

ORIGINAL: pilsenblue
Even tho My car looks great It will never be fast. Kinda like a hot girl that dosent give it up

(in reply to estraw)

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RE: 1g question - 2/8/2008 9:24:56 AM

Sebba

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I thought he was asking how much the motor could handle lol Whoops.

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These cranks are made for walkin'''', and thats just what they''''ll do, one of these days these cranks are gonna walk all over you

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RE: 1g question - 2/8/2008 2:13:44 PM

EMonz57

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with the mods your listing. I wouldnt run more than 15PSI untill tuned PROPERLY, then I wouldnt run more than 18 without a FMIC. then after that gets fixed I would say 20-22 on pump is all good. Obviously I think the internals can handle alot more than that as sebba also said.

and John no kidding it was running lean IT MELTED a piston

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