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Braineack's 12psi dyno results 12/28/06
http://www.rev2red.com/images/cars/12psi_dyno.jpg
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!!!! http://www.rev2red.com/images/cars/rx7_vs_oem.jpg |
nice one.
I am jeaulous! |
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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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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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- |
Nice. Probably woulda hit 250 whp with a full 3" ;)
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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. |
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? |
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: http://www.rev2red.com/images/cars/brad_vs_bruce.jpg |
Originally Posted by braineack
(Post 68094)
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. |
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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boost holds strong to redline
i'm using a 2.25" dual exit catback actually |
Originally Posted by ray_sir_6
(Post 68116)
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 |
You'd think the rx7 meter would have leaned out that top end some. :confused:
Where do you hit 12psi? Your power curve has a nice rise and then flattens with the torque curve- think that's the exhaust? |
Originally Posted by m2cupcar
(Post 68129)
You'd think the rx7 meter would have leaned out that top end some. :confused:
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....:bigtu: |
I would love that kind of power someday. Congratulations. Nice "baseline".
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Originally Posted by rotaryjunky
(Post 68135)
I would love that kind of power someday. .
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I have torque envy. All of you (OG, NBS, B) have sick torque curves.
Originally Posted by rotaryjunky
(Post 68135)
I would love that kind of power someday. Congratulations. Nice "baseline".
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Originally Posted by Ben
(Post 68159)
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... |
All good.
They let you run the dyno? :gay: |
Exhaust leak? That's a lot of black shit on the hood.
http://www.rev2red.com/images/cars/d...dynoday009.jpg |
196/174 @ 12psi is not all that bad considering the 2 1/4" exhaust, and the crazy rich up top. I lose power on my car due to 10.8 afr's on the top but you completely flatline at 10:1 afr's. You could gain 15whp up top jut by leaning it out and another 10whp from a 3". That puts you right at 215-220whp right where you should be:).
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Exhaust leak or oil burning off the turbo. My hood has some black on it too.
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That black SRT4 needs to rip off the duals. I did it to mine, weighs about 12 lbs. and eliminates that sloppy fork in the exhaust :)
Cool pics! |
some sick torque for 160 hp i would say that guys deffinitly needs an exhaust.
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how did brads car end up?
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his plot is in post #9...compared to Bruce's run...needs a wastegate spring....those greddy ones stink man! (i uploaded here larger)
BTW Ben....I do have this plot at 11psi. |
the more i look at your charts the more I wonder why it spools so slowly. It has to be in your 2 1/4 exhaust. When I had the S60 on my 1.6L I had a full 2.5in turbo back w/ no cat. I would see 12psi @ 3700rpm and 18psi @ 4100rpm.
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on the street I see 12psi at 3.8-4k...but I dunno how accurate both are. when I do an exhaust I'll go back and see what it does.
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what bumper is that on the all white car?
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wisdom or vision or something like that....not sure...it was just a customer's car that happened to be there.
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