Going to a smaller pulley, any concerns?
08-03-2010, 11:44 AM
#21
Race Director
The numbers above were figuring off the stock size pulley so with the overdrive crank it will be overspinning quite a bit. PM Arun and see if he has had luck overspinning these blowers, or make another thread
to get other responses. I am sure someone can tell you if it is worth any gains or just starts to make more heat than anything.Looking at the chart, the P1SC spins to 62k but the P1SC-1 goes to 65k. I think my old P1SC was the "dash one" model so yours may be as well. Plugging the overdrive crank into the equation gives you roughly 65600 with the 3.25" blower pulley, revving to 6500 on the motor, pretty darn dead on with the -1 version.
08-03-2010, 06:18 PM
#22
Burning Brakes
I have an oversized crank pulley on a D-1 and a 3.40 pulley procharger said they did not recomend me overspinning the blower the way I am but also said I should be fine and proceed at my own risk... As if we arent spinning these things at our own risk anyways...
I believe the P-1-sc1 rpm is a couple more thousand than the d-1sc I will have to check real quick.
Page 45 http://www.procharger.com/pdf/appGuide.pdf
P1-sc 62K
p1-sc-1 65k
D1-sc 62K
I believe the P-1-sc1 rpm is a couple more thousand than the d-1sc I will have to check real quick.
Page 45 http://www.procharger.com/pdf/appGuide.pdf
P1-sc 62K
p1-sc-1 65k
D1-sc 62K
Last edited by easyvette; 08-03-2010 at 06:22 PM.
08-10-2010, 09:27 PM
#23
Safety Car
Thread Starter
I have an oversized crank pulley on a D-1 and a 3.40 pulley procharger said they did not recomend me overspinning the blower the way I am but also said I should be fine and proceed at my own risk... As if we arent spinning these things at our own risk anyways...
I believe the P-1-sc1 rpm is a couple more thousand than the d-1sc I will have to check real quick.
Page 45 http://www.procharger.com/pdf/appGuide.pdf
P1-sc 62K
p1-sc-1 65k
D1-sc 62K
I believe the P-1-sc1 rpm is a couple more thousand than the d-1sc I will have to check real quick.
Page 45 http://www.procharger.com/pdf/appGuide.pdf
P1-sc 62K
p1-sc-1 65k
D1-sc 62K
Looking at the Procharger info in more detail it seems the max HP is 825 HP. I get about 700 HP at the rear wheels now. That would mean I am near the 825 HP with my 3.85 pulley. Would there be gains to be had going down to 3.25?
08-10-2010, 11:28 PM
#24
Burning Brakes
I ran a small pulley with a vortech; haven't tried the P1.
Good luck,
08-11-2010, 12:29 AM
#25
Le Mans Master
To be honest, I would still worry about some belt slip. 3.25 is very small for a procharger as their internal gearing is more aggressive than other manufacturers. If you wanted max spin with minimal risk of slippage I would get the Innovators West overdrive crank (8") and then you could use a 3.6 on the blower. That would get you more wrap on both pulleys and you would have darn near the same blower rpms as the stock+3.25 setup would give you.
well said lil brother!!
