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#1 |
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Regular
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KB Twin Screw
I am running stock internals and thinking about doing a Twin Screw. how much boost could I run safely? Also I don't wanna blow out my rear end. Would 4:10 still be a good fit for gears?
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#2 |
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Doc
1986 SVO
Join Date: Nov 2006
Posts: 36,836
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3:73's if you plan on a twin screw.
keep it at around 9 psi and TUNE. a tune is your best friend. keep it under 400rwhp and you will be fine.
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#3 |
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Regular
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what if I go over 400 HP should I swap out ther rear?
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#4 |
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Doc
1986 SVO
Join Date: Nov 2006
Posts: 36,836
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() iTrader: 9 reviews
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nah.. just don't launch on drag radials all the time.
besides if you do break it that just means it's time to upgrade
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#5 |
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RLY SRS
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Keep the power under 400rwhp as said before...
But also as said before a tune is the key to the puzzle...Without a good tune you will blow the engine... The rear end will hold up as long as you dont hit the track to much with it...Drag Radials will kill the rear end... |
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#6 |
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Regular
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yeah I don't plan on throwing those on. its a dailey driver during the summer Ijust want some more getup and blow the doors off any rice rockets that try to step! :-D :award
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#7 |
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RLY SRS
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Then a KB 2.1 would work just fine...Buy the intercooled version for even more safety...
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#8 |
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Tech Exchange Head Honcho
2003 SVT Cobra
11.70 @ 121
Join Date: Aug 2006
Location: Forsyth/Statesboro, GA
Posts: 9,050
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you should have no problem doing that with a kb
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#9 |
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Regular
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you dont think 9 psi is too much? or shouold I stick around 6-7?
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#11 |
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Doc
1986 SVO
Join Date: Nov 2006
Posts: 36,836
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() iTrader: 9 reviews
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9psi is fine as long as your tune it on point.
it's all about the tune man. edit: dammit chris ya beat me.
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#12 |
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Regular
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@ 9 psi it adds approx 160 HP which throws a stock GT to 420. I have cold air intake and cat back exhaust and throttle body nd upper plenum so that would prolly put me somewhere near 440 ish so then should I stick to 6 PSI? or even 7?
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#13 |
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Regular
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ok.
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#14 | |
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Regular
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#15 |
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Doc
1986 SVO
Join Date: Nov 2006
Posts: 36,836
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() iTrader: 9 reviews
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that because he has an on point tune.
an 11psi KB is pushing it on a 2v.
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#16 |
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Hardcore Enthusiast
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whats about the pricing for KB 99-04 GTs intercooled? there site doesnt work
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06 Saleen s281: 3.4 pulley, 39lb inj. KB BAP, steeda cai, steeda belt tensioner, saleen extreme inlet tube, bassani x, magnaflow, MGW, brenspeed tune |
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#17 |
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Hardcore Enthusiast
Join Date: Oct 2006
Location: VA
Posts: 2,034
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Why do people ask for advice and then argue with it ?
invisa stang , what does you dad drive ?I can run 20lbs on my motor but that doesnt mean its a good idea .
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Fryrice has left the building. |
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#18 |
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Regular
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he drives a 04 gt
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[rides 1987 ford F-350 XLT Lariat 7.3L idi diesel projects 1979 ford F-350 custom (soon to get 7.3Lidi diesel) 1992 ford mustang notch (just shell soon to get engine and drive train hopefully) |
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#19 |
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Regular
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twin screw intercooled is 4999.00
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#20 |
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Regular
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I've got a 75mm throttle body and an upper plenum is that the best bet for the twin screw?
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