hey,, just wondering if there is anyone with a accurate boost gauge to tell me how many pounds a 3.5 inch pully produces on a single pully whipple system. also, would it produce less on a 6.0?

 

Not sure what the 3.5 pulley will produce on the 5.3, but I can tell you it will be less on the 6.0. More cubic inches to fill up!

 

It will produce approx. 2lbs less on a 6.0L engine (but flowing the same amount of air as if it were on a 5.3L) It will be under less pressure on the 6.0L so it will not be as hot. so there is an added bonus

I know Ranwalk runs a 3.5" pulley on his 6.0L setup.

 

Well, my whipple with a 3 1/8" pulley was pushing 5lbs at 3500ft above sea level...

I just installed a 2 5/8" pulley and now I am making 8.5lbs...now this pulley is supposed to be 10psi according to the guy at Whipple.

Hope that helps.

 

sounds like you got the 2 belt whipple.. the pullies are alot different on those. stock pully on mine is 4 inches i think, and i get 6 psi.