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S475 83 1.10 HP Limits

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Old Jul 1, 2018 | 02:55 PM
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Default S475 83 1.10 HP Limits

Does anyone know what the limits of an s475 will be on a 5.3? This particular one is a T6 s475 83 1.10 with no race cover, no billet wheel or anything special. I’m curious to see how far it will be able to take me.
Thanks for the help
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Old Jul 1, 2018 | 03:50 PM
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On a sbe 4.8 I went 159mph with that Turbo at 3000lb. You can do the hp math.
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Old Jul 6, 2018 | 01:26 AM
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Originally Posted by Cougaar55
Does anyone know what the limits of an s475 will be on a 5.3? This particular one is a T6 s475 83 1.10 with no race cover, no billet wheel or anything special. I’m curious to see how far it will be able to take me.
Thanks for the help
have gone over 1000hp to the ground with one of those, out of the box, on a manual backed 403cube iron block. They're a bullet proof item which makes them great value for money.
only way you'll kill it on 5.3 is if something goes through it.
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Old Jul 6, 2018 | 06:07 PM
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Over 1000whp on a 403 with a small turbine s475? Most I've ever heard with an engine that big. Any track times?
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Old Jul 6, 2018 | 07:15 PM
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Me to I was thinking a 370 was the biggest I've seen do 1k on that exact turbine. Of course batmowheels and race covers etc. Change everything but I would say a 5.3 is gonna do 850ish give or take depends on your fuel setup your build and all that
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Old Jul 7, 2018 | 08:55 AM
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Originally Posted by B18B1LS1
Over 1000whp on a 403 with a small turbine s475? Most I've ever heard with an engine that big. Any track times?
was a manual so never raced. manual was the reason the smaller turbine was selected to help reduce lag within reason.

after 800rwhp and 15psi you could see from the power and torque graph how it was starting to choke up (exhaust/turbine flow restriction) above 6200rpm with every extra PSI that was added
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