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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 04-10-2019, 08:26 PM   #57
Jeff@Racer X Fab
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Quote:
Originally Posted by Lantanafrs2 View Post
Are these untuned results?
All testing was done with the standard OFT stage 1 tune, we have not had a specific tune developed for the manifold yet.

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Cool results, though it looks like you/they stopped the pull at 7000 rpm. Last I checked redline was 7500 rpm...
For all manifold testing we stopped at 7000 RPM, as peak power is typically made right around 6800 RPM.
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Old 04-13-2019, 02:51 PM   #58
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i see you guys have this one for sale on the website. very nice!!!
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Old 04-13-2019, 03:42 PM   #59
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i see you guys have this one for sale on the website. very nice!!!


I saw that too and the price is right!


Would still like to see the before and after on a car with headers and proper tune
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Old 04-13-2019, 07:56 PM   #60
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I wonder if it's paired with the greddy snorkel and the gramms bigger throttle body, if it will increase such numbers?
Oh course on e85 too
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Old 04-13-2019, 08:29 PM   #61
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I wonder if it's paired with the greddy snorkel and the gramms bigger throttle body, if it will increase such numbers?
Oh course on e85 too
Only one way to find out..
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Old 04-14-2019, 01:51 AM   #62
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Only one way to find out..
Someone is gonna have to be the Guinea pig lol
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Old 04-14-2019, 07:07 AM   #63
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Someone is gonna have to be the Guinea pig lol

I think we're looking at him
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Old 04-15-2019, 11:48 AM   #64
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Quote:
Originally Posted by Dr. BRZ View Post
I wonder if it's paired with the greddy snorkel and the gramms bigger throttle body, if it will increase such numbers?
Oh course on e85 too

IIRC, the crawford power blocks weren't nearly as effective on e85 as normal gas, so I would expect this manifold would be similar.
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Old 04-15-2019, 12:59 PM   #65
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IIRC, the crawford power blocks weren't nearly as effective on e85 as normal gas, so I would expect this manifold would be similar.
This may not be necessarily the case, we have actually increased the runner diameter over OEM which affects overall flow. Where the BPB just adds runner length.

We will find out soon enough.
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Old 04-15-2019, 01:48 PM   #66
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This may not be necessarily the case, we have actually increased the runner diameter over OEM which affects overall flow. Where the BPB just adds runner length.

We will find out soon enough.
When you all get to the dyno again, please rev out to the limiter. I know it's only the a small part of the power band but we need ever hp under that curve. Lol

With the full exhaust installed it will be interesting to see if it makes use of the larger intake runner diameter. Positive thus far.
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Old 04-15-2019, 03:04 PM   #67
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If it's not making power past 6700 rpm there is no point to rev it out to 7XXX.
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Old 04-15-2019, 04:02 PM   #68
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If it's not making power past 6700 rpm there is no point to rev it out to 7XXX.
Yet to see a dyno run or tune that wasnt...You tune for the entire useable range, not just till the power drops.
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Old 04-15-2019, 05:20 PM   #69
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I will say this peeps. I am on e85 and i do have the greddy snorkel. All I'm missing to be the Guinea pig is the intake manifold and bigger throttle body lol
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Old 04-15-2019, 05:54 PM   #70
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A nice tune after some time on the dyno would be nice, both NA and probably more importantly boosted.

When testing, a generic OFT tune seems pointless to me.

Going off rule of thumb, I could be wrong, it should be making all its power ufrom medium to high in the rev range.

Hoping to see some good results.

I love all this fluid dynamic black magic.

Runner length and ID?

Plenum volume?
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