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Evo 8 - Built 2.0L GTX3584RS S3 93 & E85

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Old Sep 8, 2017, 10:11 AM   #16
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Drives: 2003 evo 8, S369 turbo, 2.0LR +800hp

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Originally Posted by tscompusa View Post
This ones 0.83 A/R. Somethings definitely holding the car back.

We were experiencing some vac lines coming off during tuning, so maybe it has leaks.

All I can do when I don't have the car in my possession is ask the customer to make sure it has no leaks.
I cannot enforce that, just go off what the customer says.
.83 a/r With a 62mm exducer hot side.....it's probably at choke point.
700hp @ 40psi seems darn good too me.

Nice job!
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Old Oct 12, 2017, 12:07 AM   #17
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.83 a/r With a 62mm exducer hot side.....it's probably at choke point.
700hp @ 40psi seems darn good too me.

Nice job!
Are you saying he should have went w/ a larger a/r due to that 62mm exducer on the turbine?
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Old Oct 12, 2017, 12:09 AM   #18
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I have a similar set up (2.0, s3's, ported head, ported skunk2 IM etc) on a gtx352r and my car put down ~700whp on only 36 psi .83 vband. I would say there is a definite bottleneck with this guys car. I am, however, considering upgrading to the 3584rs just not sure what a/r I want to run.
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Old Oct 12, 2017, 07:58 AM   #19
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I have a similar set up (2.0, s3's, ported head, ported skunk2 IM etc) on a gtx352r and my car put down ~700whp on only 36 psi .83 vband. I would say there is a definite bottleneck with this guys car. I am, however, considering upgrading to the 3584rs just not sure what a/r I want to run.
Garrett shows the same turbine flow @ pressure ratio of 2 for the 3582r vs. 3584rs .83a/r
So you did 700hp with intake manifold, and ported head. So without the Porting or intake I would expect you would need about 40psi to do the same.

As far as using a larger a/r on this vehicle I would say if your ok with more lag you would pick up some top end power. I think the car has a great power curve, but it's always fun to experiment so when you get bored try a bigger a/r.
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