HTA86... .82 vs 1.03 turbine housing

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Jul 1, 2016, 06:48 PM

FreakEVO

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HTA86... .82 vs 1.03 turbine housing

What's the whp gain?
Spool difference?

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Jul 2, 2016, 11:42 AM

FreakEVO

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Anyone?

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Jul 2, 2016, 07:37 PM

TheBoz

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3-500rpm spool loss. Should be able to make ~50whp more up top.

But why, the 86hta will make 700-800whp, so stick with the .82.

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Aug 5, 2016, 09:40 AM

manden

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Quote:

Originally Posted by FreakEVO

What's the whp gain?
Spool difference?

what is the spec of your manifold? most have 11.4cm square tubing so a .82´s 12 cm is more than absolute max flow in the manifold.

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Aug 5, 2016, 10:21 AM

LetsGetThisDone

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I would get the .82. A local in Vegas made 790whp dyno jet with an English racing 2.2slr with that turbo and the .82 tial housing. Ran out of wastegate spring (only had 17psi springs in it) or they probably could have made more, it was only at 36-37psi out the top.