UPDATED!! GT MOTORSPORTS Sets the bar! VQ35DE 855RWHP @ 22 PSI
02-18-2007, 10:25 PM
#101
Originally Posted by thawk408
So, to fix the power dropping off is all dependent on timing?
So increasing timing ALONE will not make the car make power all the way to redline, but it does explain why the top end on this run is lower than usual.
sam
02-18-2007, 10:29 PM
#103
Originally Posted by sentry65
I'm guessing adding in more timing up really high will help, but not enough to fully flatten the torque curve. With a stroked engine it's going to be harder to maintain the torque at 8000 rpms compared to the 3.5 liter engine. If you continued the 20psi run, it looks like at 8000 rpms it'd be at around 350-400 tq which is a huge drop from 742 tq @ 5100 rpms
Not only that, but I'd be willing to be the APS extreme turbos are at their most efficient around the 4000-6000rpm range, so it's going to be a fighting battle to keep the tq flat from 6000-8000 rpms. I think the turbos would have to be switched to something bigger to really flatten up the top end...
Not only that, but I'd be willing to be the APS extreme turbos are at their most efficient around the 4000-6000rpm range, so it's going to be a fighting battle to keep the tq flat from 6000-8000 rpms. I think the turbos would have to be switched to something bigger to really flatten up the top end...
sam
02-18-2007, 10:33 PM
#105
Originally Posted by Sam@GTM
We weren't refering to the TQ curve as that will fall regardless, it will never be flat to redline, but rather we were talking about making the hp curve increase all the way to redline with further modification and tuning.
sam
sam
02-19-2007, 01:41 AM
#107
Originally Posted by cj350
any numbers on someone elses dyno?? nice numbers by the way
1) Come on you don't trust us?
1) No time
3) Our dyno cannot be tampered with or "adjusted" to read any different. On a Dynojet it is what it is. You can either choose STD corretion or SAE correction, thats it!. Which is why a Dynojet is the best when comparing power over the internet. No AIT correction, elevation correction, etc. that can lead to a false dyno reading as see on other dynometers such as but not limited to: dynapacks, dyno dynamics dynos, etc.
Last edited by GTM; 02-19-2007 at 04:41 AM.
02-19-2007, 04:26 AM
#108
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Originally Posted by Sam@GTM
Chasing big numbers on a dyno can only lead to one thing: misery
02-19-2007, 12:59 PM
#116
Originally Posted by Sam@GTM
sentry65,
Just wanted to thank you for posting the graphs to compare the diffrent kits, and your questions are very valid, your a smart cookie
sam
Just wanted to thank you for posting the graphs to compare the diffrent kits, and your questions are very valid, your a smart cookie
sam
keep up the good work!
I'm probably going to go with the 4.24 stroker kit sometime down the road when I build the engine
02-19-2007, 01:02 PM
#117
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Great job guys. I really like you're attitude towards tuning and making power on the Z. Next time I need a tune, I'll be stopping by.
LOL at all the Supra references.
LOL at all the Supra references.
02-19-2007, 01:05 PM
#118
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Sam, would you be able to post the boost curves for each of these runs? I can infer a lot from the posted dynos but I'd love to see the boost curves... Thanks
02-19-2007, 03:28 PM
#119
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George, do you think its possible to bore it out even more? What about 4.5 or higher? I just want to know, can it be done. Hell might as well round it up to 5.0 
02-19-2007, 03:46 PM
#120
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Originally Posted by turismo
George, do you think its possible to bore it out even more? What about 4.5 or higher? I just want to know, can it be done. Hell might as well round it up to 5.0