Would this gt91 setup work good with my 402LS
Staging Lane
Joined: Jul 2009
Posts: 88
Likes: 0
Gt55 etr 94 The new 94mm ETR 11 blade comp wheel in a GT55 put 1248 to the tire last week at 20 psi. Engine was a 390ci AES built LS.
Actually made 35 more rear wheel horsepower than the uber expensive garrett GTX5533 it was back to backed against. The only down side is that it was 150 rpm behind on the boost curve. Thing is.. without instrumentation like a datalogger or dyno... i doubt anybodys assometer could ever tell the difference.
1-2 grand cheaper and makes more power... Pretty damn good i think.
Actually made 35 more rear wheel horsepower than the uber expensive garrett GTX5533 it was back to backed against. The only down side is that it was 150 rpm behind on the boost curve. Thing is.. without instrumentation like a datalogger or dyno... i doubt anybodys assometer could ever tell the difference.
1-2 grand cheaper and makes more power... Pretty damn good i think.
Just to give you an idea, my 402/10.2:1cr/317 headed GT47-88 combo put me at 9.06 on 17psi in a 3400rw with a .96ar. no clue what it would've made on a dyno with that ar but now it's got a 1.23ar and put down 949rwhp at 22psi. Lag? Almost non existent with the .96 and just enough to push the power band up with the 1.23. Hope to see what it runs now with a full tune and an extra 5 psi. While i would love a GT55-91 or 94, its out of my price range for a turbo when i'm not trying to break any records and already have more than enough turbo to put me in the 8's and drive the car all over! 
Hope that helped some.
Oh and that's just with a blower cam! If i had Martin spec me out a cam, i can only imagine what this thing would be like as it's a monster already IMO, coming from a 10 sec n/a combo being the fastest i had ever gone prior to going turbo! lol
Hope that helped some.
Oh and that's just with a blower cam! If i had Martin spec me out a cam, i can only imagine what this thing would be like as it's a monster already IMO, coming from a 10 sec n/a combo being the fastest i had ever gone prior to going turbo! lol
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