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SBR GT35R dyno results

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Old Jun 12, 2006 | 03:59 PM
  #16  
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I allways wondered if the dyno pak was a low or high reader . my torque #'s seemed low. i actually netted 372 not 362. not that it is that much higher . im getting a meth kit soon and ill hit the dyno again after that. im going to go back to the same shop as to get a good whp difference. they allways say to hit the same dyno when making changes.
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Old Jun 13, 2006 | 01:47 AM
  #17  
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Originally Posted by M3this
Those are great #s considering your on a Dyno pak! ... they read the lowest of all dynos
Dynapaks are high reading dynos.

SBR posted a dyno graph of a typical, bone stock EVO 8 that shows 253 whp and 317 ft lbs on the Dynapack. That's a higher reading than a Dynojet, and higher than any other brand dyno I've seen.


Originally Posted by Turbojunkie
I allways wondered if the dyno pak was a low or high reader . my torque #'s seemed low. . . .
You are quoting 442 / 372 at 27 psi. Is this on race fuel? Is this the reported output for the 120.8 mph E.T. that you have listed in your signature? What is the rest of your setup?

Last edited by Ted B; Jun 13, 2006 at 02:04 AM.
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Old Jun 13, 2006 | 05:53 AM
  #18  
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Fuel was 110 leaded oct. afr's were 11.4-11.6. the 120 mph was with the bad transmission and old clutch. if i remember right it went down like this. 1.8x 60', 91 mph 1/8 ( slow shifting showing here) and a 11.8 @ 120.
Originally Posted by Ted B
Dynapaks are high reading dynos.

SBR posted a dyno graph of a typical, bone stock EVO 8 that shows 253 whp and 317 ft lbs on the Dynapack. That's a higher reading than a Dynojet, and higher than any other brand dyno I've seen.


You are quoting 442 / 372 at 27 psi. Is this on race fuel? Is this the reported output for the 120.8 mph E.T. that you have listed in your signature? What is the rest of your setup?
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Old Jun 13, 2006 | 07:34 AM
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442 whp on 27 psi and 110 octane seems low for a typical GT35R setup. This takes into account further research I've done into Dynapaks, that conclusively illustrates them as high reading dynos. I wouldn't be concerned with the torque numbers at this point, as you shouldn't expect to see the same torque numbers as a similarly equipped 16G car, simply because the boost curve of the GT35R moves the torque band higher in the rpm range, where the engine tends to be a bit less mechanically efficient.

A 120mph trap speed, despite an old clutch and not exactly speed shifting, is roughly on par with these numbers. What other upgrades have you made? TBE? Cams? Others?

That leaves good news and bad news. The bad news is you should be making more power. The good news is unless there is something about the rest of your setup that proves to be suspect, I'd say the limiting factor at this point is your tune. Ordinairly, 27 psi and 110 octane is good enough to knock on the door of 500whp. Given this, I'd say one you have your clutch/tranny issues resolved, a dyno tuning session would be well worth your while.
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Old Jun 13, 2006 | 09:18 AM
  #20  
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the lower than normal #s on 110 oct are because im using only a dynoflash tune for 92 oct. so the timming is REALLY low for what you would normaly get with 110 oct. ive got every supporting mod possible less intake mani and bottom end build. ive got a exedy twin on its way and a meth kit. ill be getting retuned for 100% meth and 92 oct at 28psi in new few weeks. got get past the $2000.00 clutch job fist . i know for sure the car on the 92 tune can run mid 11's at 123-124 with some quick shifting. i also short shift (7100 rpms) to avoid the major grinding. ill post up the retune and ill post up my time slip from next track day with new clutch. should be about 2 weeks or so.
Originally Posted by Ted B
442 whp on 27 psi and 110 octane seems low for a typical GT35R setup. This takes into account further research I've done into Dynapaks, that conclusively illustrates them as high reading dynos. I wouldn't be concerned with the torque numbers at this point, as you shouldn't expect to see the same torque numbers as a similarly equipped 16G car, simply because the boost curve of the GT35R moves the torque band higher in the rpm range, where the engine tends to be a bit less mechanically efficient.

A 120mph trap speed, despite an old clutch and not exactly speed shifting, is roughly on par with these numbers. What other upgrades have you made? TBE? Cams? Others?

That leaves good news and bad news. The bad news is you should be making more power. The good news is unless there is something about the rest of your setup that proves to be suspect, I'd say the limiting factor at this point is your tune. Ordinairly, 27 psi and 110 octane is good enough to knock on the door of 500whp. Given this, I'd say one you have your clutch/tranny issues resolved, a dyno tuning session would be well worth your while.
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