If cost was not a factor; Stock frame or T4 setup for 450-550 hp
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From: Raleigh, Transplanted from Toronto, Canada
I'm probably a week or two from having to make a decision and move forward.
Is there any factual info to support some peoples assertion that the garrett based turbos don't flow well in twin scroll config.
Right now i'm between a 5857CEA/5858CEA, HTA82 or GTX3071.
Its hard trying too look up info for these choices and there are so many intelligent opinions pro and con for these choices it makes picking difficult.
Right now i'm between a 5857CEA/5858CEA, HTA82 or GTX3071.
Its hard trying too look up info for these choices and there are so many intelligent opinions pro and con for these choices it makes picking difficult.
The T3 twinscroll stuff has been shown to choke badly on multiple platforms. It spools awesome and makes great torque, but it falls flat on it's face at higher power levels and engine speeds.
The Garrett housings have shown to not hold up well to high EGTs. Small housings help produce high EGTs so until you get into the larger housings, this is a pretty big concern.
I'd feel comfortable with a Garrett T4 divided setup in either a GT35 or GT30 turbine wheel for a street car. I don't think I'd use one for road racing though. The standard BWs also have some nice sizing options on the wheels and are a good value, they just use massive housings that can be difficult to fit.
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From: Raleigh, Transplanted from Toronto, Canada
E85 primarily. I went high compression with E85 in mind. I have 2 E85 gas stations available. One 10 miles away from work and one 15 miles away from home (its on my way to and from Raleigh so its not out of the way). When i built the car where I lived in Atlanta I had an abundance of E85 gas stations to choose from.
I run 93 mostly because I'm too lazy to get E85.
I run 93 mostly because I'm too lazy to get E85.
Do yourself a favor and stay away from the stock frames. I just had my first real SD tune on 93. It eeked out 352hp. No matter what happens, it knocks around 6k. My 10.5:1 pistons and the Black don't make for a great pump gas combo. E85 on the other hand and it picks up 300hp 
-Acree

-Acree
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From: Raleigh, Transplanted from Toronto, Canada
Its funny you should say that. yesterday I decided I'm more then likely keeping my setup and selling the turbo for something smaller.
I'm leaning towards the 5857CEA or the 5858CEA. I'm waiting on some people to get back to me that are smarter then me on their educated, experienced opinion.
I'm leaning towards the 5857CEA or the 5858CEA. I'm waiting on some people to get back to me that are smarter then me on their educated, experienced opinion.
Avoid GTX3076r. Go above or below to GTX3071r or GTX3576r. It doesn't look like sticking that big compressor wheel on a gt30 housing gives much of an advantage to just going gt35. 240z twin turbo has results to prove that.
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Doesn't look like the GTX3576R is part of their regular lineup.
From the looks of 240's testing it seems I do need to give that turbo a serious look.
From the looks of 240's testing it seems I do need to give that turbo a serious look.
Do yourself a favor and stay away from the stock frames.
450-550whp puts you right in the middle of a basic fast car or a really fast car.
i still say go with a 3582 and just detune it a little until you want to go fast again,trust me it will happen.you will miss that 6265 sorely after a few weeks of 500whp.
The setup was just not selected for 93 primarily. The high compression and stock frame turbo mean that my setup produces much more back pressure than 93 likes to put up with. I figured with 10.5:1 pistons, I would be on the safe side and be able to run at least ~25psi on pump, but with the machine work that had to be done to my block and head after my debacle with MAP, I'm sure my compression ratio is at least 10.5:1 or higher. The truth is, no one knows.
Until I can get the ***** (and funds) to swap over to a BW7670 or maybe a little bigger, my Black is just going to have to make due.
-Acree
These are results from a gtx3582r (most likely...its the biggest garrett gt35): https://www.evolutionm.net/forums/ev...ol-inside.html
I believe 240z also has a gtx3582r to test. Or wants to test it.
I believe 240z also has a gtx3582r to test. Or wants to test it.
Last edited by deeman101; Aug 26, 2012 at 07:26 PM.
but with the machine work that had to be done to my block and head after my debacle with MAP
wouldn't the billet Titanium wheels of the BW turbos actually be heavier and laggier than the billet aluminum?






