Who says vortechs can't make power...
05-30-2009, 10:56 AM
#21
Begin SP nutswing:
pharm,
SP built a new idler setup for the vortec's that is Much better than the basic vortec idler setup and allows virtually no slip. It obviously isn't as good as a cog setup for slip, but cog setups put other inherit stress on the drive system as well....
just another option especially if you go to a smaller pulley.
again, great power.
tom
/sp nutswing
pharm,
SP built a new idler setup for the vortec's that is Much better than the basic vortec idler setup and allows virtually no slip. It obviously isn't as good as a cog setup for slip, but cog setups put other inherit stress on the drive system as well....
just another option especially if you go to a smaller pulley.
again, great power.
tom
/sp nutswing
05-30-2009, 08:23 PM
#22
Last edited by Mr_pharmD; 06-02-2009 at 07:28 PM.
05-31-2009, 12:09 PM
#25
ya, the scaling is off by 600 so 6400 on that dyno is actually suppose to read 7000. That is why my max tq/hp is at the wrong rpms on that dyno sheet but if u add 600rpm to each interval it's right around 52XXrpm where they should cross.
06-01-2009, 07:10 AM
#27
Congrats on the numbers - outstanding power curve.
So I learned recently that Dyno Dynamics is known for it's accurate atmospheric corrections, unlike DJ which has a tendency to be a bit exaggerated (reportedly). That's the reason all the IP DD dynos up in the mountains didn't fall flat as there was the default DD correction built in. DD does have "shootout" mode that bypasses all the compensations. This is what Sharif generally uses down in Atlanta. That said, in Atlanta, not too much correction would be needed, except for during the summer heat. I surmise then that dynos down at Forged during the summer will read lower than the winter time with the cooler weather numbers more on par to DD readings elsewhere (which include compensation).
EDIT: So Alberto, do you recall the date (or even better temp) when the dyno was performed? (sorry to hear about your trans
)
So I learned recently that Dyno Dynamics is known for it's accurate atmospheric corrections, unlike DJ which has a tendency to be a bit exaggerated (reportedly). That's the reason all the IP DD dynos up in the mountains didn't fall flat as there was the default DD correction built in. DD does have "shootout" mode that bypasses all the compensations. This is what Sharif generally uses down in Atlanta. That said, in Atlanta, not too much correction would be needed, except for during the summer heat. I surmise then that dynos down at Forged during the summer will read lower than the winter time with the cooler weather numbers more on par to DD readings elsewhere (which include compensation).
EDIT: So Alberto, do you recall the date (or even better temp) when the dyno was performed? (sorry to hear about your trans
)
Last edited by rcdash; 06-01-2009 at 07:12 AM.
06-02-2009, 07:26 PM
#38
I was going to run E85 but it required 30% bigger injectors to do so but the tuner says it won't net any extra whp (cant use with meth kit) and there aren't many stations around and may never will.
U got to love the VPRO... it idles like stock even with 800cc
Also, I'm using the regular vortech bypass valve. I was going to use the HKS but that one was even louder. I might switch back and forth.
06-02-2009, 07:42 PM
#39
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I do have a return line and I believe my duty cycle was around 70%.
I was going to run E85 but it required 30% bigger injectors to do so but the tuner says it won't net any extra whp (cant use with meth kit) and there aren't many stations around and may never will.
U got to love the VPRO... it idles like stock even with 800cc
Also, I'm using the regular vortech bypass valve. I was going to use the HKS but that one was even louder. I might switch back and forth.
I was going to run E85 but it required 30% bigger injectors to do so but the tuner says it won't net any extra whp (cant use with meth kit) and there aren't many stations around and may never will.
U got to love the VPRO... it idles like stock even with 800cc
Also, I'm using the regular vortech bypass valve. I was going to use the HKS but that one was even louder. I might switch back and forth.
06-02-2009, 07:49 PM
#40
It really depends on the EMS. I have the VPRO and it's capable of idling larger injectors but if u run the utec then your best bet is to run 750cc max. Therotically, if u want 500whp u can run 650cc injectors but u will be close to or over 80% duty.