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Turbo size

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Old Sep 19, 2008 | 11:53 AM
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Default Turbo size

Been tossing the idea of doing an FI set-up with a custom turbo kit im shoting for around 400 Rwhp nothing outrageous. Would a t-60 get me there i know its not going to be cheap but dont see why i need to get a 67+ mm turbo. please correct me if im wrong just looking to run about 5psi. I dont know much about turbo's so please push me in the right direction.
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Old Sep 19, 2008 | 03:43 PM
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ummm dont take this the wrong way just trying to help but.... thats a lot of money to spend for just 400 hp.

just my .02

anyways good luck with your build!
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Old Sep 19, 2008 | 04:00 PM
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we'll 450 would be okay I just don't want to kill the motor
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Old Sep 23, 2008 | 08:44 AM
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ha youll be fine evin past the 500 rwhp mark
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Old Sep 23, 2008 | 09:06 AM
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a turbo set up is not cheap , u can do your horsepower goal on motor a lot cheaper than going turbo.put a 4" crank in your motor and use a mild head and cam package
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Old Sep 23, 2008 | 04:36 PM
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i decided to do a Mp t70 with about 5-6 psi would 42 pounders be okay? Or do I need alike bit bigger injectors. I know turbo's arent cheap just dont want a heads and cam or a 383. Im not looking to get a cheap turbo get im going to to build it myslef over the next couple months.
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Old Sep 23, 2008 | 05:14 PM
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Originally Posted by headed-ws6
i decided to do a Mp t70 with about 5-6 psi would 42 pounders be okay? Or do I need alike bit bigger injectors. I know turbo's arent cheap just dont want a heads and cam or a 383. Im not looking to get a cheap turbo get im going to to build it myslef over the next couple months.
It would work for 400rwhp, as they max out around 500rwhp (100%DC)
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Old Sep 23, 2008 | 08:37 PM
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would it be fine for me to run them at about 440-450rwhp?
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Old Sep 24, 2008 | 10:09 AM
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Why not shoot for ~ 480 rwhp (pulls number out of ***) with a T67 @ 5 psi? Use 60 lb injectors and upgrade your fuel delivery, and you'll have a setup that you can add boost to later if you want to (and you will). It makes good sense to overbuild while you're doing all of this work. For your cubes, a T60 might not have much more efficiency to contribute past 5 psi.

If you're honestly only looking for 400 rwhp, then heads/cam (nicely tuned) is a much better and less expensive route. You could then spend some money on gears and a stall for that A4 and be pretty quick...
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