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R/TErnie's Evo 9 2.2L 4G64 EFR7670

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Old Nov 21, 2012, 06:54 AM
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most of our kits are utilizing smaller sized runners that others- and we are extremely pleased with the results.

cb
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Old Nov 21, 2012, 08:16 AM
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off topic- why are all the full race/efr setups top mount?
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Old Nov 21, 2012, 09:40 AM
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Originally Posted by mullen
off topic- why are all the full race/efr setups top mount?
They make a bottom mount TS externally gated manifold that has been used previously with the EFR, but required that you TRIM the transmission and the front motor mount IIRC. Geoff's top mount internally gated manifold is pretty badass. I'd be intersted in seeing if could put 2 wastegates on that manifold for mysetup...
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Old Nov 21, 2012, 11:07 AM
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Why not make it FF and be done with clearance issues?
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Old Nov 21, 2012, 11:28 AM
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Because then I couldn't run a full-size radiator! A mini-rad won't work for what I do
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Old Nov 21, 2012, 11:31 AM
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Ya this is the reason why I haven't decided on a turbo setup quite yet...
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Old Nov 21, 2012, 11:32 AM
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Originally Posted by R/TErnie
Geoff says the 7163 is all that and a bag of chips. I haven't run it, but it uses "mixed flow" turbine geometry or something crazy like that. Evidently it works very well for THIS size only. weird to think that something wouldn't correlate to larger sizes, but anyway...

the 7163 is supposed to make 500+whp but stomp turbo's much smaller than itself on response. Jeff Perrin did some testing...

http://blog.perrinperformance.com/bo...test-and-tune/

BOOM! Mind blown again.
Perrin's normal lack of data is very helpful. What setup were these tested on, I couldnt find it in the blog post? I saw mention of a 2011 WRX at the very end but it didnt seem like it was the same car the the turbo kit was tested on. The next question I have is what housings were these tested in, did the 6758 have too small a housing and run into backpressure? For it to spool later and make less peak power I have to wonder about that

Per the turbo working the way it does, Mitsu has a very similar turbo that scaled up doesnt work the same. Evo3 16Gs (and now the HTA68) function at a level they shouldnt but doesnt translate into the 20Gs and larger versions.
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Old Nov 21, 2012, 11:36 AM
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This turbo does sound very appealing but the lack of manifolds makes it equally unappealing....
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Old Nov 21, 2012, 12:04 PM
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What housing was the 7163 in?

So the 6758 is a 0.64 T25 so thats why it got its butt handed to it compared to the T3 stuff. I presume the 7064 wasnt in a really housing either just the 0.83 A/r T3 open?
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Old Nov 21, 2012, 12:36 PM
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^ if you read the tests that he's done the EFR stuff... he goes over that it's his car, what's done to it, and the A/R and turbine housings on all the turbos.

He talks about the differences between the housings and such as well during his comparisons. The car is HIS car, and only til the last post does he compare the STI (his car with the stock turbo) STI (his car with the EFR) and a 2011 WRX(smaller turbo than STI)


Originally Posted by Jeff Perrin
"Below was my previous favorite EFR turbo. There are two things here. The AR of the 7064 was .83 versus the 7163′s .64. So the EFR7064 is slower spooling for sure. The second thing is the boost falls off on the 7064. This is because the WG actuator was not strong enough. I never got a chance to install the push/pull WG actuator as i had to send the 7064 back to you."

The below graph is the GT3076r with smaller more comparable .63ar housing.

And the GTX3076R test with a .82AR housing
These posts are a continuation of his testing of the previous EFR turbos...

http://blog.perrinperformance.com/bo...-tuned-part-2/

And...

http://blog.perrinperformance.com/ef...-turbo-killer/

so you can read them all
Last edited by R/TErnie; Nov 21, 2012 at 12:41 PM.
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Old Nov 21, 2012, 01:24 PM
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09+ wrx's use the same turbo as 08+ sti's.
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Old Nov 21, 2012, 01:37 PM
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09+ wrx's use VF52's
08+ Sti's use VF48's

And I'm not a subaru guy!
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Old Nov 21, 2012, 01:44 PM
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Originally Posted by R/TErnie
09+ wrx's use VF52's
08+ Sti's use VF48's

And I'm not a subaru guy!
Correct me if im wrong, but the compressor and turbine wheels are the same, the compressor housings have different flanges though which doesnt affect flow.
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Old Nov 21, 2012, 07:37 PM
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Originally Posted by R/TErnie
They make a bottom mount TS externally gated manifold that has been used previously with the EFR, but required that you TRIM the transmission and the front motor mount IIRC. Geoff's top mount internally gated manifold is pretty badass. I'd be intersted in seeing if could put 2 wastegates on that manifold for mysetup...
Only for the 8374 and larger apparently. Not the 7670.
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Old Nov 21, 2012, 10:17 PM
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Cool thanks. Didnt have time this morning to try to sort through all of the setups.

aaron

Originally Posted by R/TErnie
^ if you read the tests that he's done the EFR stuff... he goes over that it's his car, what's done to it, and the A/R and turbine housings on all the turbos.

He talks about the differences between the housings and such as well during his comparisons. The car is HIS car, and only til the last post does he compare the STI (his car with the stock turbo) STI (his car with the EFR) and a 2011 WRX(smaller turbo than STI)




These posts are a continuation of his testing of the previous EFR turbos...

http://blog.perrinperformance.com/bo...-tuned-part-2/

And...

http://blog.perrinperformance.com/ef...-turbo-killer/

so you can read them all
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