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New BW EFR Turbo Thread

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Old Jul 17, 2017, 04:02 AM   #4426
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Originally Posted by Toekneeng View Post
I was expecting 450 whp as well but I'm anticipating a built block in the near future. For now I'm happy with how it feels on the road.
What did your timing curve look like? I have an almost identical set up on my 8 and made 418 at 22 psi on a mustang dyno in ATL, GA.... my phone is garbage but it looks like you were running 26 I would think that would be good for 450+ too..

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Old Jul 17, 2017, 07:52 AM   #4427
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What did your timing curve look like? I have an almost identical set up on my 8 and made 418 at 22 psi on a mustang dyno in ATL, GA.... my phone is garbage but it looks like you were running 26 I would think that would be good for 450+ too..
I wasn't there when it was dyno'd and I didn't bother asking for any more info. I believe Aaron tuned it though.

What manifold are you running and what's your a/r?
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Old Jul 17, 2017, 08:02 AM   #4428
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I suggest just traditional 3" exhaust, stock intake manifold, keep it simple.
There is a lot of "mystery" about intake manifolds, Magnus V5, AMS F1, and HKS, do work- but mostly on cars with lots of power on bigger laggier turbos (3582, 3586, 9180).
And nobody has shown a simple back to back independent dyno test on typical 400-500whp Evo with ported vs unported intake manifold, and shown gains. It's a lot of claims, some dyno's by vendors, no independent data.
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Old Jul 17, 2017, 09:50 AM   #4429
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Originally Posted by Toekneeng View Post
I wasn't there when it was dyno'd and I didn't bother asking for any more info. I believe Aaron tuned it though.

What manifold are you running and what's your a/r?
Full-Race twin scroll stock AC and radiator manifold
1.05 A/R.

i was on Sunoco 93 pump. My timing Map is pretty conservative on stock bottom end and head. It comes on smooth at about 4* advanced and ramps up to 10* by redline
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Old Jul 17, 2017, 01:46 PM   #4430
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I would be seriously inclined to believe the BW chra would last longer. Stock chra turbos seem to have a weak spot after having 3, to serious abuse and in one case no perceived abuse. While we aren't moving to borg warner , I think the gains are what you anticipate or see on the dyno, but the benefits are far reaching.
Stock CHRA can be rebuilt 10x and you still won't approach the cost of an EFR turbo kit vs a stock frame setup.
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Old Jul 17, 2017, 05:02 PM   #4431
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DJDino

I suggest just traditional 3" exhaust, stock intake manifold, keep it simple.
There is a lot of "mystery" about intake manifolds, Magnus V5, AMS F1, and HKS, do work- but mostly on cars with lots of power on bigger laggier turbos (3582, 3586, 9180).
And nobody has shown a simple back to back independent dyno test on typical 400-500whp Evo with ported vs unported intake manifold, and shown gains. It's a lot of claims, some dyno's by vendors, no independent data.
Thanks AT, I have tried a "modified" 9 turbo and was seeing full boost at 4100rpm, the car is track only and on tight street/sprint events it was horrible, I put a stock 9 turbo back on and it was a different car. I'm really hoping this 7670 will spool in between the 2 at about 3600. I'm wondering if the 7163 may be a better choice ?
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Old Jul 18, 2017, 07:47 AM   #4432
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I think that 7163 might be better choice, given your experience and purpose, provided your tracks are tight and its a sprint race, as you pointed out.

If you even scroll around this forum, you'll find 7163 twin scroll on stock-block E9 making full boost by 3600rpm-while being tuned respectfully on pump fuel.

If you run E85 and have 2.2 liter, I cannot see why 7163 will not make full boost say by 3200-3300rpm, and make meaningful boost lower down.

However, if your tracks are not so tight...if they are more like Laguna Seca and Sonoma Raceway in California, than 7670 all the way for 2.2 liter.
In USA, Laguna Seca and Sonoma are considered medium speed tracks..tight race-tracks, because you have VIR for example (Virginia International Raceway) and new Austin F1 track COTA, which are much higher speed.

7670 on 2.2 liter is very sweet in all aspects, especially track application.
7163 is tremendous for more mid range and lower speeds, especially on say 2.0 liter which cannot spool as effectively a 7670 in lower rpm ranges.
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Old Jul 18, 2017, 01:57 PM   #4433
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Stock CHRA can be rebuilt 10x and you still won't approach the cost of an EFR turbo kit vs a stock frame setup.

if you're cool with that down time I guess...
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