How much boost can it take?

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Sep 21, 2013 | 11:17 AM

willy9

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How much boost can it take?

Hello guys, right now I'm about to trade my ws6 for a turbo Silverado and I have some questions. Engine is a 370 iron block, forged rods and pistons, full ported heads. Custom speced cam.Thats all I know so far. My question Iis abiut how much boost can it take safely and how much hp can it make. The owner told me it could hold 25psi but I don't know how safe it would be. Its currently at 13 pounds and the truck has run high 7s in the 1/8 with 1.98 60 ft.
Thanks

Sep 21, 2013 | 11:17 AM

willy9

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Forgot to add that its a 70mm single.

Sep 21, 2013 | 12:04 PM

Camaro9969

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70mm? Seems very small for a 370
What are the specs on it? What fuel? What timing?

Last edited by Camaro9969; Sep 21, 2013 at 02:53 PM.

Sep 21, 2013 | 01:47 PM

willy9

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That's all I know so far, the owner takes a long time to answer my texts, what I was wondering was if the engine could take those 25psi as he said it was built for that much or would it be too much.

Sep 21, 2013 | 01:57 PM

big reg

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25psi on a 370 with t70 turbo? That turbo is done at 12-13 psi on that motor if not less. Anything more and back pressure would be horrendous. Probably stop making power before 5k too.

Sep 21, 2013 | 02:01 PM

mustang93

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I agree with big reg.

Sep 21, 2013 | 02:46 PM

willy9

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But will it hold with a bigger turbo?

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Sep 21, 2013 | 02:55 PM

willy9

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Launching!

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From: Texas

Jaja ok, I just wanted to know how safely it would hold 25psi. Will it blow after a few passes or be good. Also around how much power can I expect?

Sep 21, 2013 | 03:14 PM

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s14kouki

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Just make sure you tune that thing before upgrading your turbo. Also ask the owner what kind fuel setup he is running. What fuel pump, Injectors, etc.