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Fastest TR on stock turbo?

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GN One Day...

Senior Member
Joined
May 28, 2001
Messages
1,686
Discussion on another board posed this question and I'm curious too. How long do you typically keep the stock turbo, as far as HP/TQ and quarter mile performance before you've gotten all you need to out of it?
 
with the Stock Motor, you could go 12.0's@113 in a TR and probably 116 in a TTA before you would run out of turbo.

Basically, you could keep the stock turbo until you need to put a roll bar in it.

It's easier to run 12.0's with a TA49 than a stock turbo, though. So around 12.20's its easier to buy a bigger turbo, than trying to go faster with the stocker.
 
I ran 12.1's in my 130K mile motor with stock turbo, front mount, D5 converter and Terry Houston Down pipe. It probably would have went further If I wouldn't have gotten greaty and installed a TE-52 turbo:D By the way my Turbo TA just dynoed 475 ft/tq with 19lbs boost on the stock turbo.
 
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