Vortech dynojet numbers on (stock block)
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Vortech dynojet numbers on (stock block)
I have a non rev up motor (stock block) dynoed last week on a dynojet, it was pretty cold out that day which prolly accounted the 14psi we saw @ 7100.Made around 380whp on the dyno dynamics.
MODS:3.12P/34 tooth cog/strup headers/stillen td exhaust/hfc's/650cc inj/aam rfs/utec.Tuned by dave @ Function tuned.
MODS:3.12P/34 tooth cog/strup headers/stillen td exhaust/hfc's/650cc inj/aam rfs/utec.Tuned by dave @ Function tuned.
Last edited by jouvert00; 01-29-2008 at 09:40 AM.
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Originally Posted by jpc350z
Great #'s. the A/F seems a little rich. What were the #'s on the Function Tuned Dyno for comparo?
Last edited by jouvert00; 01-29-2008 at 10:23 AM.
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very good #s man
I rev mine (03) to 7000 and only see 13psi with the 2.87. What would make the 3.12 pulley make more boost the the 2.87? Not trying to go off topic
Originally Posted by sentry65
he's reving the engine to 7100 rpms on a non-REVUP engine, that's why the psi would be high
good numbers
good numbers
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#8
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Originally Posted by jksstar
very good #s man
I rev mine (03) to 7000 and only see 13psi with the 2.87. What would make the 3.12 pulley make more boost the the 2.87? Not trying to go off topic
I rev mine (03) to 7000 and only see 13psi with the 2.87. What would make the 3.12 pulley make more boost the the 2.87? Not trying to go off topic
elevation and ambient air temp can change the psi a little too
I kept my redline at 6600 rpms @ 11 psi. If I had Sam@GTM take it up to 7000, IMO I'd be asking for trouble in the long run even though I might reach close to 13 psi
Last edited by sentry65; 01-29-2008 at 02:34 PM.
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Originally Posted by rx7/350z
Stock block plus 14psi plus 7100rpm equals kaboom!!!!!!!!!!!!!
Nice numbers keep reving it that high and it won't last long
Nice numbers keep reving it that high and it won't last long
But thanks for the encouraging words
Last edited by jouvert00; 01-29-2008 at 11:38 AM.
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Originally Posted by jksstar
very good #s man
I rev mine (03) to 7000 and only see 13psi with the 2.87. What would make the 3.12 pulley make more boost the the 2.87? Not trying to go off topic
I rev mine (03) to 7000 and only see 13psi with the 2.87. What would make the 3.12 pulley make more boost the the 2.87? Not trying to go off topic
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Originally Posted by jouvert00
I also have the 34 cog pulley installed which would account for the additional psi.
The 34 tooth cog gets you the extra psi for sure . Its a better pulley set up than the 32 tooth and the 2.87 . CONGRATS !!!!!!!!!!!
Also great to see guys post both thier load base dyno and dynojet numbers !!!!!
Hey Sentry
Let the guy have his post with out you saying....if you put this pulley on .....and rev to this rpm .......you would make XXXwhp . Just to let him know you still make more whp than he does . Give us all a break will ya ?????
Last edited by booger; 01-29-2008 at 01:58 PM.
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I have been revving my stock 3.5 motor with cams to 7000 rpm with the 3.125 pulley for almost a year now and no problems, knock on wood. I am hard on it and take it to the track alot. Its in a maxima though which is a different setup, I am only getting a max of 8.5-9psi from the 3.125. I think the IC robbed me of around 1-1.5 psi. I have a 2.70 pulley I will be trying soon.
I think the boost doesn't hurt anymore than the rpm's do on the rods. RPM and torque is what is hardest on rods, vortech's don't make any torque except at peak VE, and many N/A people rev to 7000rpm, as did I for a year prior to the S/C. What I am trying to say is that if its ok to rev to 7k on stock rods, boost won't change that much, because the rpm is what is hardest on rods. (assuming a good tune with no detonation)
I think the boost doesn't hurt anymore than the rpm's do on the rods. RPM and torque is what is hardest on rods, vortech's don't make any torque except at peak VE, and many N/A people rev to 7000rpm, as did I for a year prior to the S/C. What I am trying to say is that if its ok to rev to 7k on stock rods, boost won't change that much, because the rpm is what is hardest on rods. (assuming a good tune with no detonation)
#18
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Originally Posted by booger
Hey Sentry
Let the guy have his post with out you saying....if you put this pulley on .....and rev to this rpm .......you would make XXXwhp . Just to let him know you still make more whp than he does . Give us all a break will ya ?????
I was mainly trying to caution about reving 500 rpms higher than redline with boost and trying to show that 13-14psi would be completely possible for the people that weren't sure how 14 psi could be made with the SC-trim
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Jouvert,
All your power is being made before or at 6600, so there's really no reason to go further than that. I also have my non rev G tuned to 7100, but I did it to avoid bouncing off the rev limiter. By the time I react, I usually wind up shifting at 6600 to 6800 rpm. Great numbers.
All your power is being made before or at 6600, so there's really no reason to go further than that. I also have my non rev G tuned to 7100, but I did it to avoid bouncing off the rev limiter. By the time I react, I usually wind up shifting at 6600 to 6800 rpm. Great numbers.
#20
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actually he would accellerate harder by reving past 6600 rpms. Even though the hp drops, the idea is during the rpm range of each gear, you want the highest average hp
if he was shifting from 2nd to 3rd at 6600 rpms, he'd start at 4500 rpms which is obviously a lower hp there than at 5000 rpms.
If he instead shifted at 7100 rpms, he'd start his 3rd gear around 5000 rpms
so look at the hp curve on the graph and figure you were reving from 4500-6600 rpms, or 5000-7100 rpms.
That's for 3rd gear anyway. It's slightly different depending on the gear
see the comparison overlay below where both areas under the curve are overlayed on the left and you can see the higher rpm chart has more hp on average
if he was shifting from 2nd to 3rd at 6600 rpms, he'd start at 4500 rpms which is obviously a lower hp there than at 5000 rpms.
If he instead shifted at 7100 rpms, he'd start his 3rd gear around 5000 rpms
so look at the hp curve on the graph and figure you were reving from 4500-6600 rpms, or 5000-7100 rpms.
That's for 3rd gear anyway. It's slightly different depending on the gear
see the comparison overlay below where both areas under the curve are overlayed on the left and you can see the higher rpm chart has more hp on average
Last edited by sentry65; 01-29-2008 at 04:10 PM.