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Need help with a 454 twin turbo set up pleaseee.

Forced Induction Custom FI Setup Questions

Need help with a 454 twin turbo set up pleaseee.

Old 05-11-2010, 05:40 PM
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Default Need help with a 454 twin turbo set up pleaseee.

I have a 454 bored .30 over makes around 500. has never been on the dyno to know for sure though. I am looking to build a twin turbo setup for it. But i have ALOT of questions. I was wondering if using turbos off of a duramax diesel was be a good idea. Also Im running a 750 Holley, I know that the carburetor needs to be tweaked for a blow-through setup but can you buy them already built to boost? and If I am running a 750 Holley at about 500hp and plan on running 5-7 psi of boost I am assuming i am going to need a bigger car as in a 850. Some help here would be great. Also do the wastegates and blow off valves differ from a fuel injected turbo system

Thanks Jon
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Old 05-12-2010, 09:52 AM
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looks like a fun build but i would ditch the carb and bolt on a fuel injection kit. boost and carberators usually end in disaster.
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Old 05-20-2010, 08:15 AM
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Talk to sd concept engineering. Google it. He's a local guy who specializes in domestic v8's. He can get you going on a boost friendly carb.

Only thing about carbs is on a fi setup you can't do part throttle boost from what I understand
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Old 05-20-2010, 10:37 AM
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Talk to sd concept engineering. Google it. He's a local guy who specializes in domestic v8's. He can get you going on a boost friendly carb.

Only thing about carbs is on a fi setup you can't do part throttle boost from what I understand
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Old 05-20-2010, 11:58 AM
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the duramax turbos would be a difficult ammount of mounting and pipeing I recommend the HX35's of of a 94-2002 dodge
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Old 05-20-2010, 04:42 PM
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boost that bitch. then blow it. then rebuild stronger. add more boost. then blow the ---- out of it again. repeat.

welcome
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Old 05-20-2010, 08:07 PM
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Originally Posted by thumpn View Post
the duramax turbos would be a difficult ammount of mounting and pipeing I recommend the HX35's of of a 94-2002 dodge

What dodged did these turbos come on..
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Old 05-20-2010, 09:18 PM
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hx35's were used on all cummins diesels, there are some variations, depending on the year, so make sure you get tow identical ones. ID get my carb from The Carb Shop, they specialize in boosted carbs. a 750 is plenty. What is your current compression ratio?
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Old 05-21-2010, 08:01 PM
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look into a predator carbs for boosting on
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Old 05-22-2010, 07:36 AM
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compression is 9.5-1
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