Twin Turbo help

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Jul 20, 2013 | 05:33 PM

H35

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Twin Turbo help

I was looking for some input:

I have a 57`BelAir with an 04` LQ4 and 4L80E in it. I was going to put a single turbo on it but after looking at the space and lay out I have decided to go with twins. I will be using a Holley Hi-Ram intake and probably a different cam.

My question is...which turbos with internal wastegates (if there are any) can I use to make 620+RWHP. This is a street car.

P.S. I know it`s simple to do with a single but due to space I need to run twins, preferably with internal gates.

Thanks for the help.

Jul 20, 2013 | 06:18 PM

allout06

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From: Kokomo, In

why are stuck with internal gates?

Jul 21, 2013 | 04:16 AM

stevieturbo

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From: Norn Iron

With twins, there are plenty of options.

The question is are you trying to buy second hand which will limit options, or new units ?

Internal gates can sometimes be more compact, but equally the w/g can can sometimes be harder to find room for.

Jul 21, 2013 | 08:41 AM

H35

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I was looking for internal gates to keep the package tight. If I go with external I would need to dump back into the exhaust and I don't want to fill the engine bay with pipes.

I would prefer to buy new turbos but if there are options for second hand let me know.

Thanks
Rob