MustangWorks.com : Ford Forums - View Single Post - well 13:1 compression, and 11lb of boost at the track.. results within.

BilLster · 10-06-2003, 10:00 AM

Big Big question how have you found out how to run a roots blower with no belt ?

i have a 349 with worked afr 205's, .700inch solid roller, roots blower, 950dp and big shot nitrous plate...

compression is 13:1,
running 11lb of boost,
8600 rpm shift point,
and 225 shot on top of it all...

i was experiencing flex in the stock pully tentioner ?? with a roots blower ?

when we ran a roots if the belt came off the car stalled . because when the rotors arent turning the vacum from the pistons cant pull enough air past the rotors to run.

I bet someone will bring up mad Max but that blower was specially made by weidland and the rotors were trimmed to provide little boost but to let air flow when the drive was disengaged.the main thing was letting the car run with the belt disengagede. huge money was spent for those scenes.

also we would travel with 5-10 belts in the car because you never knew when you had to change one and there not a part you can get just anywhere .Are's were 4 inch wide and Dad bought them in bulk. also we had diffrent belts for diffrent snout pulleys,

10-06-2003, 10:00 AM	#3
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	Big Big question how have you found out how to run a roots blower with no belt ? i have a 349 with worked afr 205's, .700inch solid roller, roots blower, 950dp and big shot nitrous plate... compression is 13:1, running 11lb of boost, 8600 rpm shift point, and 225 shot on top of it all... i was experiencing flex in the stock pully tentioner ?? with a roots blower ? when we ran a roots if the belt came off the car stalled . because when the rotors arent turning the vacum from the pistons cant pull enough air past the rotors to run. I bet someone will bring up mad Max but that blower was specially made by weidland and the rotors were trimmed to provide little boost but to let air flow when the drive was disengaged.the main thing was letting the car run with the belt disengagede. huge money was spent for those scenes. also we would travel with 5-10 belts in the car because you never knew when you had to change one and there not a part you can get just anywhere .Are's were 4 inch wide and Dad bought them in bulk. also we had diffrent belts for diffrent snout pulleys, __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .