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Evo 8: MHI HTZ Red, S1 Cams, E85

Old Feb 12, 2019, 01:30 PM
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Originally Posted by letsgetthisdone View Post
There is absolutely no need for S3's on a stock engine. You're just shifting the power to the right. S2's are the biggest this setup really needs.
He said built engine, plus said he wants to rev to 8k.

still probably overkill for a red. But a lot of guys like Gary run S3s with smaller turbos and like them
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Old Feb 12, 2019, 01:39 PM
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Even if it's built. Only revving to 8k with S3's is a waste, you're needlessly shifting power to the right.
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Old Feb 16, 2019, 05:58 PM
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Originally Posted by desiromeo812 View Post
The turbosmart makes boost control a breeze compared to the Fp actuators and makes sure we donít get spikes in the low end since.
Can you expound on this more? Thanks.
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Old Mar 3, 2019, 11:22 PM
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Originally Posted by MIL.SPEC Erik View Post
Can you expound on this more? Thanks.
Hi Erik,

i have always found the turbosmart wastegate actuators to have better control over boost. For example the FP 18psi or 22 psi will hit the target boost in midrange and then taper off.. i have found the turbosmart doesnít do that as long as the turbo can keep up. Also it seems to react better downlow at spoolup so you donít get the 1-2psi overshoot.

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Old Mar 13, 2019, 11:24 AM
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^ I have found the exact opposite. FP actuator are the most stable for me. Turbosmart ones are good, but def not as good as the FP ones.
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