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Old 10-20-2007, 04:31 PM   #11
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just because someone did it doesnt mean its cost effective lol


someone in my town put 24 inch rims that cost 3500 dollars onto his olds bravada. does that make it worthwhile?
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Old 10-21-2007, 04:55 PM   #12
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Back on topic....

Yes, you can turbocharge a bonneville. When I do it, I'll just gut the super, and run that block off plate. I was into that twin charge stuff for awhile, but it'* just not cost effective. Pontiacjeff is doing it, but gots more skillz than I do.
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Old 10-21-2007, 08:39 PM   #13
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Quote:
Originally Posted by SSEi99
the power gains arent worth the money spent
Why is that? The kits on the market for the 3800 make GREAT power, it'* hard to beat them in the HP/$ if you're sticking with the Eaton. No one in an H body has set one up yet really, atleast publically on this site.
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Old 10-21-2007, 11:45 PM   #14
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From what I've heard you better plan on spending alot of time on a dyno if you plan on twincharging. The interaction of turbo and supercharger boost will create very dynamic boost levels making for an exhausting tune process. Also plan on adding larger injectors to handle extra air coming in. Imagine how hot that air is going to be going in the engine coming from a turbo and THEN through a supercharger (not good for making power). My two cents is to stick with one or another.
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Old 10-22-2007, 01:01 AM   #15
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Quote:
Originally Posted by nuclearxp
From what I've heard you better plan on spending alot of time on a dyno if you plan on twincharging. The interaction of turbo and supercharger boost will create very dynamic boost levels making for an exhausting tune process. Also plan on adding larger injectors to handle extra air coming in. Imagine how hot that air is going to be going in the engine coming from a turbo and THEN through a supercharger (not good for making power). My two cents is to stick with one or another.
Actually, isn't one of the potential benefits to twin-charging that the final air charge will be cooler?

Obviously this won't be true in all cases, but if you compare a supercharger with a small pulley, to a twin-charged system with an intercooler between the turbo and */C, the */C running a stock pulley, the twin-charged system should be cooler (given the same boost levels), right? Compressing the air heats it, but with an intercooler between the two compressors, you're able to remove some of the heat, which you can't do in our theoretical */C-only application.

But yeah, seems like there would be some serious tuning to be done anyway.
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