Forced Induction Superchargers | Turbochargers | Intercoolers

** GT91 combos **

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Old 08-23-2012, 10:13 PM
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Default ** GT91 combos **

What is your combo ci, cr, heads, intake, cam spec, intercooler size, ect... How much power did it put down through what Trans at what boost lvl what timing on what dyno. If you have graphs post em.
Old 08-23-2012, 11:34 PM
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Also interested
Old 08-23-2012, 11:59 PM
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I know I've read several people using the gt91s and gt88s... Anyone???
Old 08-24-2012, 06:47 AM
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I have a gt 91 with your torque converter, lol.
Old 08-24-2012, 07:10 AM
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GT91, 408ci, Dart heads, TH400, 15psi, pump gas, 800hp
Old 08-24-2012, 07:29 AM
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Heres my GT-88 Build thread. not a 91 but same style.
https://ls1tech.com/forums/forced-in...ld-thread.html


Andy
Old 08-24-2012, 08:31 AM
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So you don't have the Procharger anymore...
Old 08-24-2012, 10:10 AM
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Originally Posted by ChadGilbeaux
So you don't have the Procharger anymore...
Nah, sold it to a member on here out of Waco. Got tired of the meat grinder sound.
Old 08-24-2012, 10:37 AM
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408, afr 225's, th400 and 9" with a gt-88 made ~1000rwhp 20-21lbs with 16*. made 1100ish on 25 or so. the gt-88 is pretty much done at 23lbs on my 408. turbo actually made more power on my 347
Old 08-24-2012, 05:24 PM
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Anyone else
Old 08-24-2012, 06:40 PM
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Automagic I seen the vids of your car... BEAST what size intercooler was on there or should I say what iat. My timing was 19* and 24lbs made 892 but the iat was super high. I don't know how much timing the computer pulled out for boost or how much for temp. I need to ask my tuner that.
Old 08-24-2012, 06:52 PM
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Originally Posted by ChadGilbeaux
Automagic I seen the vids of your car... BEAST what size intercooler was on there or should I say what iat. My timing was 19* and 24lbs made 892 but the iat was super high. I don't know how much timing the computer pulled out for boost or how much for temp. I need to ask my tuner that.
ebay cx racing 31x12x4, with the intercooler mounted in the front bumper of my t/a and cutout where the plate cover normally goes my IAT's are always ~8* warmer over the ambient temp. it works very well
Old 08-25-2012, 09:02 PM
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I just put the biggest intercooler I could fit on my truck it's 12x20x6 from extreme turbo systems and I might have my gt91 sold and jgs50 waste gate. I think I'm gonna go with a tial 60 and I'm trying to figure what turbo to get gonna have to be the same size as what I got cause down pipe will hit the a/c if it's and bigger.
Old 08-26-2012, 02:21 AM
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Why are you selling the gt91?
Old 08-26-2012, 04:15 AM
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Screw the #'s What does this thing trap, at what weight?
Old 08-26-2012, 01:08 PM
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What size crossovers are you guys running?
Old 08-26-2012, 01:37 PM
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2.5 crossover here.
Old 08-27-2012, 09:41 AM
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Originally Posted by ChadGilbeaux
I just put the biggest intercooler I could fit on my truck it's 12x20x6 from extreme turbo systems and I might have my gt91 sold and jgs50 waste gate. I think I'm gonna go with a tial 60 and I'm trying to figure what turbo to get gonna have to be the same size as what I got cause down pipe will hit the a/c if it's and bigger.
Best bet would be a compact GT55 if you are needing something bigger.
Old 08-27-2012, 09:54 AM
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Originally Posted by DrTurbo
Best bet would be a compact GT55 if you are needing something bigger.
what are the spec's on a GT55?
Old 08-27-2012, 10:01 AM
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Originally Posted by mike13
what are the spec's on a GT55?
80, 83, 88, 91, 94mm comp wheels, 112/102 GT55 UHP turbine wheel.


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