511 FE Twin Paxton

[RICK LAKE]

Roydenm I had the silly idea of running a blower back in 98 with a single Novi 2000 on a 452 Shelby block and heads. Was looking for 8-10 pounds of boost with a clog drive setup. I did get the thing to work but had problem with belts popping off and chewing up teeth on the belt. These are some of things I had to do to get the blower to work OK and this was with fuel injection
You need 1 large fuel line of 1/2" min
A low pressure electric fuel pump with up to 15 psi rating Watch the gallons per minute too. One lean out and you could have alot of nice end coffee tables for the garage.
Cooling system, largest radiator you can get into the car
Hood, I had a paxton hood made for my car, looks great but is a gaint air scoop when driving and gives you the plane feel at 128 mph when the front end gets lite.
Buy some 4" blower fans and have them blow the air out of the engine compartment through the fender grills.
Fresh air for the blowers, Fresh air with filters to keep the trash out of the blowers and motor a must.
Extra heat into the motor, You should talk to some of the supercharger companies about running a water injection system like SNOW to help cool the intake charge, make more power, and have less detonation problems. Also an MSD 6alT box for controlling timing and set to retard it 2 degrees for every pound of boost to start. These are adjustable. Have you thought about an A/F meter in both pipes?
1 large bypass valve to control blower banging. I know these blowers have ball bearing to drive the impellor but if you go from 3/4 or WOT and shut the throttle off, the boost has no where to go and will either bang the carb plates or bang the impellors in the blowers. Yes it does and will happen even with a 6 psi setup.
Last thing, change you driving style. As others have said rolling on and off the throttle is needed. Boost comes on like a ton with these blowers. The car want to go everywhere but straight. I ran a gold centerforce clutch which held the power of my motor. I was 368hp without the blower and little over 600 under 6 psi of boost. I have gone to a twin disc setup from Mcleod and removed the blower. The motor is now a 482 and going to a 498. Turbos and blower make great added power but these car become killers. They are faster than you can even think. A clutch car is worse than and automatic. This is another reason for blowoff valves. With the right fluid in the blowers you can get from 6-9 psi out of these blowers. Carbs are orignial and look period correct but FI system is alot easier to adjust and work with. You have no intercooler, please check into a water injection system and is adjustable. These used these system during WWII and they worked well. Pain is filling the bottle with the gas tank every 100 miles. Rick L. Ps I had a big problem with rear tires not lasting long. BFG tires last about 100 miles on the first set and the car gets a hopping in the rearend or squealing. Last thing is SMOKE, not sure if it was the motor or tires. Grease the rear quarters of the car to get off the rubber. Looking forward to the finish build. Rick Listen to Bill Cosby in 200 mile an hour talk about the first ride. This is 100% true with a blown car. They also did this with an auto car, not a stick.