Got My Turbo Today....
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From: Cecil County Raceway!!!
Originally Posted by DSG
Those matter to you but there are other records that can be broken, though I wouldnt mind having the fastest stock suspended, I have to admit there is a huge difference in 8.50's and 7.80's(think thats what Steve ran).
Just looking to have fun building the car and getting back to the track, thats all that really matters.
Just looking to have fun building the car and getting back to the track, thats all that really matters.
Steve went 7.98
should be a fun time....there are 3-4 GT47-88 combos showing up soon at least that I know of)
Joined: Nov 2001
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From: Cecil County Raceway!!!
Originally Posted by DrTurbo
A GT47-88 will be VERY hard pressed to get to 8.2's much less 7.9's. You are talking 91+mm size units.
pretty sure it was done in the fox-body world in something <3000 lbs
Originally Posted by DrTurbo
A GT47-88 will be VERY hard pressed to get to 8.2's much less 7.9's. You are talking 91+mm size units.
Joined: Nov 2001
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From: Cecil County Raceway!!!
Originally Posted by DSG
8.50'S is all I am looking for...If I have to move up in Turbos or have to spray it then so be it.
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From: Cecil County Raceway!!!
Originally Posted by TINKRD
What’s the most boost a gt47-88 can push through a 408 w/ light exhaust work done on the heads?
Yes, backpressure is a concern. Just look at the top drag radial guy last year that ran a GT47-88 in NMRA. Jose said he was seeing 35+psi at 18psi of boost and that was with only a 360ci engine and the larger 1.08A/R. Those cars were running 8.3's, slap out on all that turbo would do.
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Joined: Nov 2001
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From: Cecil County Raceway!!!
Originally Posted by DrTurbo
Yes, backpressure is a concern. Just look at the top drag radial guy last year that ran a GT47-88 in NMRA. Jose said he was seeing 35+psi at 18psi of boost and that was with only a 360ci engine and the larger 1.08A/R. Those cars were running 8.3's, slap out on all that turbo would do.
Originally Posted by Fireball
looks like they have larger A/R housings for the GT47 in the garrett catalog now. They list a 1.23 and a 1.39 A/R housing now...wonder how they would help
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From: Cecil County Raceway!!!
Originally Posted by DrTurbo
As explained to me by Jose, increasing the A/R will only help to a certain margin. The exhaust gases though still have to flow through the turbine wheel, so it consquently will still become the main restriction.
One thing I noticed, was that GT47 doesn't have the V-band outlet. Did Jose get you a custom cover from Garrett?? Well at least you don't have to buy that expensive V-band clamp assembly.
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From: St Petersburg, Fl
Originally Posted by DrTurbo
One thing I noticed, was that GT47 doesn't have the V-band outlet. Did Jose get you a custom cover from Garrett?? Well at least you don't have to buy that expensive V-band clamp assembly.
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From: Cecil County Raceway!!!
Originally Posted by DSG
He said that was the new cover Garrett was making?? I had no idea. Guess its good it should save me a $100 or so, 5 inch Vbands are expensive.
DSG...check your pm
