245 rwhp @ 6psi
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Joined: May 2004
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From: Rosemount, MN
245 rwhp @ 6psi
1991 Turbo, Newly rebuilt (just broken in) pineapple racing engine, with a small street port, stage 3 oil mods.
Car also has racing beat exhaust and cone intake.
This run was on a dynodynamics dyno, which is about the stingiest in the industry.
Based on the dyno owners correction factor he put the engine at right around 300HP @ 6psi. His correction factor agreed almost exactly with the stock mazdaspeed cars that made runs the same day. The MS3s were putting 220 to the ground front wheel.
I certainly dont plan to turn the boost up as I am at my safe limit for injectors already. 550/750
I'm really happy with my new motor, nice work pineapple.
Car also has racing beat exhaust and cone intake.
This run was on a dynodynamics dyno, which is about the stingiest in the industry.
Based on the dyno owners correction factor he put the engine at right around 300HP @ 6psi. His correction factor agreed almost exactly with the stock mazdaspeed cars that made runs the same day. The MS3s were putting 220 to the ground front wheel.
I certainly dont plan to turn the boost up as I am at my safe limit for injectors already. 550/750
I'm really happy with my new motor, nice work pineapple.
Thread Starter
Joined: May 2004
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From: Rosemount, MN
I dunno what to tell you. I bought the turbo as a "new mazda unit" from japan. Other than a few little differences in fittings and that wastegate spacer it looks stock, the wheels both look stock when side by side with my old stock unit. The housings are definetly the same.
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From: Rosemount, MN
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From: n
Adjusting the numbers, on a DynoJet, it should make way over 250 at the wheels.
We're talking in the range of 260 to 270 at the wheels...
With a standalone + FMIC, it MIGHT hit those numbers over 10psi.
No ways it'll hit it at 6psi.
No ways it'll do this on a stock ECU which requires the stock AFM.
That turbo can't be stock if the numbers are that high.
If the power numbers are right, your fuel injectors are close to maxing out.
Something just smells fishy...
-Ted
We're talking in the range of 260 to 270 at the wheels...
With a standalone + FMIC, it MIGHT hit those numbers over 10psi.
No ways it'll hit it at 6psi.
No ways it'll do this on a stock ECU which requires the stock AFM.
That turbo can't be stock if the numbers are that high.
If the power numbers are right, your fuel injectors are close to maxing out.
Something just smells fishy...
-Ted
Thread Starter
Joined: May 2004
Posts: 1,718
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From: Rosemount, MN
It is a rom tuned ECU so the timing is not stock, i know that much. Then we tuned the mixtures with the SAFC.
I already realize the fuel injectors are basically at thier max safe duty cycle. That is why I will not be turning up the boost. Well that and if the turbo is stock this is about the best it will do, any more and it will become a big heat gun.
Trust me man, It surprised me more than anyone.
I have the boost/AFR curves from the same run, ill upload it. It was pig rich in thie mid-high RPMs and I brought the AFRs after the fact in line some more after that, but it does show the boost curve which peaks at 8psi at around 5500 RPM. Then it falls off as the gate pressure overcomes the boost creep or the turbo loses efficiency (or maybe a little of both). But the power still climbs right to redline. The 245 was at redline as you can see above.
I already realize the fuel injectors are basically at thier max safe duty cycle. That is why I will not be turning up the boost. Well that and if the turbo is stock this is about the best it will do, any more and it will become a big heat gun.
Trust me man, It surprised me more than anyone.
I have the boost/AFR curves from the same run, ill upload it. It was pig rich in thie mid-high RPMs and I brought the AFRs after the fact in line some more after that, but it does show the boost curve which peaks at 8psi at around 5500 RPM. Then it falls off as the gate pressure overcomes the boost creep or the turbo loses efficiency (or maybe a little of both). But the power still climbs right to redline. The 245 was at redline as you can see above.
i can believe it. mine made about the same power, but my boost peaked at 9psi, bleed off to 7psi at redline, yet still making about 248whp at redline. this is with stock S4 block & turbo
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From: Rosemount, MN
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From: n
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From: Rosemount, MN
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From: Rochester, NY
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From: Massachusetts / Osaka Japan
closing the loop. the TB mod is when you purposely remove the dashpot actuated butterfly valves in the TB. ie direct control over the TB with the bas peddal. no more, you floor it and it opens slowly. if you floor it now from idle it wil bog. you will need to control your right foot more but it does give better feedback and response from the throttle - my opinion. it's also rumored to reduce restriction in the intake.
Link - http://fc3spro.com/TECH/HOWTO/TBM/tbm.html
TR
Link - http://fc3spro.com/TECH/HOWTO/TBM/tbm.html
TR