Lawnboy

iTrader: (54)

I need the formula to figer out what my blower speed will be,
does anyone know the math, i used to have it.
thank you for your help

ss1

iTrader: (32)

Procharger I assume?

edit: never mind, I just saw your other thread.

ChevyChad

iTrader: (50)

engine RPM x pulley ratio x blower step up ratio

b727pic

iTrader: (1)

Here ya go..

Just enter your application pulley sizes / gear ratio / and engine RPM.

rufretic

iTrader: (37)

That calculater is awesome! Makes it super easy to figure out. Thanks. I still have a lot left in my little D1, should work just fine with my new 408 set-up.

No Juice

iTrader: (11)

I believe the D1 kit comes with a 7.25 crank pulley and 4.5" blower pulley which is suppose to be about 8psi. Can anyone verify that?

If so I'm at 42936rpm and its making about 10psi on a stock LS1 and I've still got another 19000 to go

b727pic

iTrader: (1)

Happy to be of service

b727pic

iTrader: (1)

Not sure about the F body, but the GTO was a 7" crank pulley. I had a custom 8" pulley made by ASP to get my RPM's up on the impeller yet still keep enough belt wrap on the blower pulley to keep belt slip to a minimum.

ChevyChad

iTrader: (50)

SDCE uses a 7.25" crank pulley. The ATI 8 rib crank pulley is 7.65"

Lawnboy

iTrader: (54)

Hi b727pic
thank you for your help but i cant open the file, can u send me the link to the procharger calculator, i cant find it either on there sight

thank you very much

b727pic

iTrader: (1)

responded to your PM.

If you dont have Excel you can't open it.

If you do have excel not sure why it wont open??? I can always email you the calc, but you will need MS Excel or excel reader...

ChevyChad

iTrader: (50)

maybe he doesnt have winzip?

b727pic

iTrader: (1)

Could be...

If anyone needs this, simply shoot me a PM, I can email it to you.....

ChevyChad

iTrader: (50)

although it really is not hard to do the math yourself

No Juice

iTrader: (11)

Wow, guess I was a little off

firehawk618

iTrader: (14)

Thanks for the spreadsheet. Makes it real easy!