Help! Pt88 or Tc78 or 76GTS

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Apr 10, 2011 | 07:55 PM

#21

Nitroused383

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From: Washington

The ST-80 is similar in size to the GT-42 series turbos here are dimensions: http://www.turbobygarrett.com/turbob..._2_3_4_new.pdf

Threads to read: https://ls1tech.com/forums/forced-in...ll-coming.html

http://www.theturboforums.com/smf/in...?topic=94573.0

https://ls1tech.com/forums/forced-in...ame-motor.html

Apr 10, 2011 | 09:19 PM

#22

Blownz28man

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From: OK,Elk City

Thanks for the info! St80 is huge though! Dunno if I can fit it. I've got maybe 10" in diameter I have to work with at absolute most. I guess the PT88 is about 9-9.5" .

Apr 10, 2011 | 10:03 PM

#23

HydroStream6

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I said .96 because I believe that is the largest housing available on the 76GTS.

If you only want 650hp now and 800 later, no reason for a PT88. The 76's can make the power you want.

My car with a TC76 is making enough power to go 135+ in the 1/4, and my car is 4400 lbs race weight. And the 76GTS will make plenty more than my lil TC.

Apr 10, 2011 | 10:25 PM

#24

rotary1307cc

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Quote:

Originally Posted by Nitroused383

Honestly there are so many better options out there for an 88mm turbo than the PT-88. If you're going to have an 88mm turbo go with one that makes 88mm power otherwise you have a big slow spooling turbo.

Well said, i would look into the Comps as stated before aswell...

Apr 11, 2011 | 03:25 AM

#25

Nitroused383

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From: Washington

Here is NicD's 347 on 15.5lbs of boost with a 76GTS. This turbo will get you mid to low 9's depending on your setup and is good for 800-900 rwhp through a manual. The ST80 will get you low 9's to high 8's if you have a well dialed setup. DrTurbo said the ST80 is 10" tall.

PT76GTS = 105 - 110 lbs/min ??
ST80 = 121 lbs / min
PT-88 = Around 120lbs
10.86 x lbs/min of air = hp

Apr 11, 2011 | 10:43 AM

#26

Blownz28man

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From: OK,Elk City

Makes me lean towards the 76gts. I'd be happy in the 10's. That should do it.

Apr 11, 2011 | 10:57 AM

#27

NicD

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Quote:

Originally Posted by HydroStream6

I said .96 because I believe that is the largest housing available on the 76GTS.

If you only want 650hp now and 800 later, no reason for a PT88. The 76's can make the power you want.

Yup and yup.