#1 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
which turbo? Hey guys, building a turbo 402 and looking at two different turbos,
#2 TECH Resident
Join Date: Jun 2007
Posts: 890
pt88 or pt91 for that sized engine
#3 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
I thought against the pt88 because of the t4 flange being restrictive. Is the pt91 also a t4? Or can you order either with a t6 flange?
#4 Staging Lane
Join Date: Mar 2009
Posts: 66
A PT88 will spool slower than a GT4788 and make less power, and less than an S88 also. PT91 isnt a bad turbo, but he doesnt need a thumper to make his power goals on a 402.
#5 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
How much of a price difference is there between the gt and the s88? Reliability wise either one? ScorpoinT thanks for the help so far. Just trying to find out which one to order and who through. What about BOV and WG?
#6 11 Second Club
1998 Chevrolet Camaro
Join Date: Mar 2005
Posts: 3,550
i talked to dr turbo and he said a pt88 for my goals. im pretty sure he said it was a t6
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#7 10 Second Club
Join Date: Nov 2005
Location: WPB, FL
Posts: 2,779
Quote:
Originally Posted by
bad6as i talked to dr turbo and he said a pt88 for my goals. im pretty sure he said it was a t6
I thought that all pt88's were .96 A/R t4's. Mine is.
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98Z28CobraKiller 370ci LQ9 + AFR225's + PT88 9.57 @ 142 so far
#8 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
thats what I have heard. t4 flange is restrictive. the other two turbos are t6 flanges. Just wondering about price between the two and longevity. Still wondering what bov and wg to run though...
#9 11 Second Club
1998 Chevrolet Camaro
Join Date: Mar 2005
Posts: 3,550
maybe he said gt88 the a/r is a 1.08
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#10 TECH Fanatic
2001 Chevrolet Camaro
Join Date: Mar 2009
Posts: 1,037
I would think the 91 would be ideal for what your doing
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#11 LS1TECH Sponsor
Join Date: Mar 2006
Posts: 3,071
PT88 is T4 and GT88 is T6. No relation in power though....as the GT88 will make ALOT more power. Spool up is almost identical if not better with the GT.
#12 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
how does the gt88 and the s88 compare?
#13 LS1TECH Sponsor
Join Date: Mar 2006
Posts: 3,071
Quote:
Originally Posted by
ssnovaturbo how does the gt88 and the s88 compare?
GT88 is more compact. As for HP its a toss up.
#14 Registered User
Join Date: Sep 2009
Location: WI
Posts: 18
What about price and reliability? DR. Turbo, Do you carry both? What would you put on it?
#15 LS1TECH Sponsor
Join Date: Mar 2006
Posts: 3,071
Quote:
Originally Posted by
ssnovaturbo What about price and reliability? DR. Turbo, Do you carry both? What would you put on it?
Both are great and will take serious beating. We carry everything pretty much....if its a Garrett, BW, Tnetics, PTE, Holset, IHI.....etc
Tags 10 , 91 , ar , drturbo , garrett , gt88 , ls1tech , pt , pt91 , t6 , turbo
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which turbo? 
