Braineack's 12psi dyno results 12/28/06 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-28-2006, 05:00 PM   #1
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Default Braineack's 12psi dyno results 12/28/06



just shy of what I thought it would make...all in all I'm very pleased with the torque curve. I need a larger exhaust obviously!


RX7 VS OEM AFM.....

RX7 LOST POWER AT 12PSI!!!!

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Old 12-28-2006, 05:12 PM   #2
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nice one.

I am jeaulous!
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Old 12-28-2006, 05:22 PM   #3
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I am dissapointed as well thought you had more comming. Looks pretty damn irch past 6K rpm this could cost ya a few ponys
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Old 12-28-2006, 05:52 PM   #4
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So, brain, you didn't say in the other thread, are you going to go MS next year? I'd expect another 20hp.
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Old 12-28-2006, 06:10 PM   #5
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I too agree there is some power to be had 5700 or so, looks like it got REAL rich. Get it back around 12 or 11.5 and i would imagine 215 or so could be had.
Good job!
-Michael-
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Old 12-28-2006, 07:02 PM   #6
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Nice. Probably woulda hit 250 whp with a full 3"
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Old 12-28-2006, 07:19 PM   #7
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That's what happens when you use the OEM ECU, no way to tune out the top-end AFR.

Yes, I'd expect fairly big gains from a 3.0" over this 2.25".

and yes, this summer I'll tackle MS after I do a new rear.
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Old 12-28-2006, 08:53 PM   #8
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The only way you could tune it out is with an Emanage when using the OEM ECU. MS will, of course do it, and your attempt at reducing fuel pressure at the top end would work; if you could make it happen.

Even with the smaller injectors, my AFR dropped at the top. I could probably pull fuel with the airflow adjustment map, but it would only be to prove the point. I never drive like on the dyno. Who does?
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Old 12-28-2006, 08:57 PM   #9
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Brad's finally making some good power too...however having the same problem keeping the wastegate under control without a helper spring....


Compared to Olderguy's 1st run last summer:
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Old 12-28-2006, 08:57 PM   #10
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Quote:
Originally Posted by braineack View Post
That's what happens when you use the OEM ECU, no way to tune out the top-end AFR.

Yes, I'd expect fairly big gains from a 3.0" over this 2.25".

and yes, this summer I'll tackle MS after I do a new rear.
What other mods are you running?
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Old 12-28-2006, 09:04 PM   #11
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Good numbers. I'm a bit surprised that the T3 didn't make more power at 12psi even with a 2.5" exhaust. It looks like the torque curve starts dropping off a little earlier than usual, were you holding 12 psi to redline or was the boost dropping a little?
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Old 12-28-2006, 09:12 PM   #12
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boost holds strong to redline

i'm using a 2.25" dual exit catback actually
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Old 12-28-2006, 09:14 PM   #13
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Quote:
Originally Posted by ray_sir_6 View Post
What other mods are you running?

see my VBGarage for a full list of mods....but basically:

T3 S60 Turbo
12x11x18" intercooler
Vortech FMU
Pierburg Pump
O2 clamp
Bipes ACU
BEGi Manifold & DP
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Old 12-28-2006, 09:58 PM   #14
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You'd think the rx7 meter would have leaned out that top end some.
Where do you hit 12psi? Your power curve has a nice rise and then flattens with the torque curve- think that's the exhaust?
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Old 12-28-2006, 10:03 PM   #15
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Quote:
Originally Posted by m2cupcar View Post
You'd think the rx7 meter would have leaned out that top end some.
Where do you hit 12psi? Your power curve has a nice rise and then flattens with the torque curve- think that's the exhaust?

no, my logs show it being the exact same...it's just the nature of the ecu using an internal map and I'm using 305cc injectors.

I hit 12psi at around 4.2k.

I really think the exhaust is a bottle-neck that's limiting my full potential....but seriously...I'm happy with the numbers....
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Old 12-28-2006, 10:41 PM   #16
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I would love that kind of power someday. Congratulations. Nice "baseline".
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Old 12-29-2006, 12:10 AM   #17
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Quote:
Originally Posted by rotaryjunky View Post
I would love that kind of power someday. .
Just follow the FAQs
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Old 12-29-2006, 12:15 AM   #18
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I have torque envy. All of you (OG, NBS, B) have sick torque curves.



Quote:
Originally Posted by rotaryjunky View Post
I would love that kind of power someday. Congratulations. Nice "baseline".
Braineack, can you repost a graph starting at 1k rpm? Thx
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Old 12-29-2006, 12:34 AM   #19
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Quote:
Originally Posted by Ben View Post
Braineack, can you repost a graph starting at 1k rpm? Thx

no can do....I start to run at 3k, some a little later...had to slam on the gas, start my datalog and hit the dyno button all at once...
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Old 12-29-2006, 12:35 AM   #20
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All good.

They let you run the dyno? :gay:
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