Forced Induction Superchargers | Turbochargers | Intercoolers

turbo question?

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Old Oct 26, 2007 | 08:21 AM
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From: Anderson S.C
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not shure to get precision gt42 76mm t6 turbo or precision
76 gts or any other suggestions would be appreciated

motor is forged 347 diamond pistons lunati rods dart 225's.............
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Old Oct 26, 2007 | 08:44 AM
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The GT4276 T6 will make more power, but is physically much larger than the 76GTS. Hp goals would help.
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Old Oct 26, 2007 | 09:00 AM
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lookin for around 650, 700 hp /was thinkin same thing but wasnt sure being that the gts is t4 flanged and other being a t6 , about rpm u think that gt42 would be at full boost
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Old Oct 26, 2007 | 10:01 AM
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The T76 GTS will easily make the power you are looking for, spool faster than the GT42, and be easier to fit in the engine bay.
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Old Oct 26, 2007 | 10:02 AM
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Originally Posted by RealQuick
The T76 GTS will easily make the power you are looking for, spool faster than the GT42, and be easier to fit in the engine bay.
Yep. 76GTS has gone 8's in several cars and made 1000+ hp.
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Old Oct 26, 2007 | 10:32 AM
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back pressure shouldn't be a problem should it with the 76gts the motor just being a 347
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Old Oct 26, 2007 | 10:35 AM
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Originally Posted by boostedls2
back pressure shouldn't be a problem should it with the 76gts the motor just being a 347
It will be fine.
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Old Oct 26, 2007 | 10:38 AM
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ST76 will outpower both of them and spool the same.....might want to take a look at it as well. Priced them same as well.
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Old Oct 26, 2007 | 10:47 AM
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preciate the help fellas / who makes the st76?
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Old Oct 26, 2007 | 10:48 AM
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Originally Posted by boostedls2
preciate the help fellas / who makes the st76?
We build the ST series units using BWA parts.
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Old Oct 26, 2007 | 10:56 AM
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i'll probably get that st76 since it will outperform both an still spool the same / oh an anybody had any experience the ohio forced induction turbo kit i was thankin of gettin the kit minus the turbo an gettin that st76
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Old Oct 26, 2007 | 10:58 AM
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Just realize that the ST76 is aprroximately the same external dimensions of a GT42... its a big ******* turbo. Figure outthe space you have to work with and then select your turbo out of those 3.
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Old Oct 26, 2007 | 11:03 AM
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ill have to see how much space i have its either between the 76gts or st76
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Old Oct 26, 2007 | 11:18 AM
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Originally Posted by RealQuick
Just realize that the ST76 is aprroximately the same external dimensions of a GT42... its a big ******* turbo. Figure outthe space you have to work with and then select your turbo out of those 3.
Remember we can do the ST76 in a T4 housing as well as the T6, and we are working on some more compact size covers.
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Old Oct 26, 2007 | 12:40 PM
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If the ST76/ST80 T4 are the same size as my 76GTS, then how soon can you have me one?

My 76GTS is crammed into a very small space. I can't even install a 3.5" downpipe because it exhausts very close to the steering column. So close that I had to notch the v-band clamp to let the steering column pin bolt pass by it.
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Old Oct 26, 2007 | 01:36 PM
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Originally Posted by DrTurbo
Remember we can do the ST76 in a T4 housing as well as the T6, and we are working on some more compact size covers.
Arent the St76 compressor housings just as big though as the GT42. If so they are ******* huge.
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Old Oct 26, 2007 | 01:43 PM
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The new compact covers are smaller. Very close to the H cover.
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Old Oct 26, 2007 | 06:50 PM
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would the st76 be best in t4 or t6 housing for the 347 ,trying to find best turbo cause only want to do it once, planning on upgrading motor in the future

Last edited by boostedls2; Oct 27, 2007 at 07:49 PM.
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Old Oct 28, 2007 | 10:06 PM
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should i go ahead a get the t6 turbo kit or the t4 for the 347 planning on upgrading motor in the future to iron 370 or 408 , an is the s88 a t4 or t6 housing?
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Old Oct 29, 2007 | 08:11 AM
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I think you will be creating a headache for yourself fitting a big T6 turbo when your goal is 650-700hp.

If you were definitley going to do a 408ci, then a T6 will be better, but a 270ci T76GTS T4 turbo will push you to 800hp easily.

FYI, the S88 is a T6.
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