Higher or lower A/R ?
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Higher or lower A/R ?
as everybody already probably knows I'm doing a TT setup or N20 setup. my questiong is about a TT setup. what would be a good A/R rating for a TT setup on a 5.7 liter TPI engine? I just want to know so I know what turbos to look at. thanks
Josh
Josh
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From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
two 49's with .63's would be a good setup.(considered mild compared to Guido's, but then again most are!!!)
Last edited by PETE; Apr 16, 2006 at 07:39 PM.
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iTrader: (1)
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From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
The smaller the turbine wheel(.63) the quicker the spool, and you won't have to have a 3000+ converter.
If you combine too large of a compressor with too small a turbine it'll spool slow and take forever to reach full boost. If you combine too small of a compressor on a quick spooling turbine you won't get the top end outta it.......................
Go to www.turbobuick.com and do a search, it's a good place to learn a few things..............
If you combine too large of a compressor with too small a turbine it'll spool slow and take forever to reach full boost. If you combine too small of a compressor on a quick spooling turbine you won't get the top end outta it.......................
Go to www.turbobuick.com and do a search, it's a good place to learn a few things..............
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Joined: Nov 2002
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From: West Chicago, IL
I run two Hifi 60-1 with .59 a/r exhaust housing. The 60-1 from Turbonetics is like the TE62 from Precision Turbo. If you are going with a twin setup you don't want to go crazy large with the turbo, I would go with 2 TE44 or TE60 and no bigger than .63a/r housing on a SBC. I also run a 3000+ TC, good aluminum heads and a TH400 w/ trans brake.
Good luck
Prasad
Good luck
Prasad
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