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4.8 Turbo Recommendations for 550 max

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Old Aug 8, 2015 | 07:04 AM
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Default 4.8 Turbo Recommendations for 550 max

Hey guys, I've been tossing around the idea of throwing a single turbo setup on my drift car for next season. The car weighs 2700 race ready. I'm running a t56. I'm trying to find some information on a turbo that will give me what I'm looking for but I'm having some difficulty.

This is what I'm looking for:
-450-550hp max
-I want fast spool, like full boost as low as 2500

I have some kind of precision turbo, I'll try and post a pic and maybe someone can help me identify it. The guy I bought it from says its a 67mm and the housings say .75/.96. Other than that I'm lost.

Thanks for your input!
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Old Aug 8, 2015 | 08:51 AM
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The 0.96 would be the A/R of the hot side which will be fine with a small 4.8L. Being a precision i bet its a 6766. Which would mean 67mm compressor wheel with a 66mm turbine. Would light up a 4.8L pretty quick.

Jay
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Old Aug 9, 2015 | 05:10 PM
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Ok awesome, thanks for your reply. I was hoping that this turbo would spool pretty fast on a 4.8. I have attached a picture of it just for reference.
Attached Thumbnails 4.8 Turbo Recommendations for 550 max-img_0712.jpg  
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Old Aug 9, 2015 | 05:21 PM
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Build your setup, run the turbo you have. Of it doesnt work, go from there. At least at that point your setup will be done and running.
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Old Aug 9, 2015 | 06:42 PM
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^^ That sounds like a plan.

As far as the fuel system goes, if I could get away with some 60lb injectors on the stock fuel rail, with a C5 regulator and a 400lph pump that would be awesome. Is that unreasonable? Do i need to look into a boost referenced regulator with a true return system?
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Old Aug 10, 2015 | 05:15 AM
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You will have no issues with stock rails with 60lb and a 400 pump. I know a few guys making MUCH more power on the stock dead head system.

Jay
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Old Aug 10, 2015 | 08:51 AM
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Great, thanks Jay
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