Turbo Size Help
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Turbo Size Help
Hi fellas,
I have a 2011 GMC Sierra 5.3 which has been turned to a forged 383 stroker. My current setup is in the sig, 94mm turbo which is not making good power. I am making 550 wheel horsepower at 15 psi and it is lifting the heads a bit. So, can't go any higher. I am not making full use of the turbo. I know the 94mm turbo was a mistake.
I am looking to size down. What size turbo would you go for on a 383 stroker?
I am looking to be around 900 - 1000 wheel horsepower
Thanks!
I have a 2011 GMC Sierra 5.3 which has been turned to a forged 383 stroker. My current setup is in the sig, 94mm turbo which is not making good power. I am making 550 wheel horsepower at 15 psi and it is lifting the heads a bit. So, can't go any higher. I am not making full use of the turbo. I know the 94mm turbo was a mistake.
I am looking to size down. What size turbo would you go for on a 383 stroker?
I am looking to be around 900 - 1000 wheel horsepower
Thanks!
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Thanks for the reply.
To be more realistic my goals are to be 800+ wheel horsepower.
As for the S480 there is a T4 and a T6 version. Which one would be more suitable for me? Also, what A/R would you go with?
To be more realistic my goals are to be 800+ wheel horsepower.
As for the S480 there is a T4 and a T6 version. Which one would be more suitable for me? Also, what A/R would you go with?
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Do you think that would've been good as well?
#7
Not sure the turbine side on the 7675 is big enough for 383 cubes.....The Borg Warner S476 or S480 with the 92mm or 96mm turbine will likely do it.
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Also the A/R sizes available are:
-1.15
-1.32
-1.45
-1.58
I need your opinions as I do not want to make the same expensive mistake!
Thanks guys