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Front Engine Dragsters / Re: Rear wheel width
« on: January 16, 2014, 10:20:56 AM »
I believe Parks runs bead-locks because their motor combo makes less torque than other J/F cars and in order to keep the tire speed up so it doesn't pull the motor down out of the RPM range it needs to be, they run as low as 4 1/2 lbs of tire pressure. So with that kind of low pressure you'd need bead-locks.
Now about your combo; what kind of HP are you making ? With your 526 I assume you are using a 8" or 9" converter, I also assume your 526 makes more torque than our 400 ci SBC and early iron Hemi, [ I just picked-up our 354 block from the machine shop] , so that's why you plan on running a 14" tire. With your 3.90-4.10 gears what kind of RPM are you thinking of running thru the 1/4 ? I also assume your 6400 stall is close to the RPM the "cam" comes on. I've seen many a combo where the stall is too low and the motor struggles to go from stall to where the cam is designed to work.
We have also learned that stiffer chassis deliver better ET's unless you are running Big Show Top Fuel. You might want to call Parks about chassis combo's and they have someone that can covert you wheels to bead-locks, maybe for less $.
Jon Hansen, 805-444-4489
Now about your combo; what kind of HP are you making ? With your 526 I assume you are using a 8" or 9" converter, I also assume your 526 makes more torque than our 400 ci SBC and early iron Hemi, [ I just picked-up our 354 block from the machine shop] , so that's why you plan on running a 14" tire. With your 3.90-4.10 gears what kind of RPM are you thinking of running thru the 1/4 ? I also assume your 6400 stall is close to the RPM the "cam" comes on. I've seen many a combo where the stall is too low and the motor struggles to go from stall to where the cam is designed to work.
We have also learned that stiffer chassis deliver better ET's unless you are running Big Show Top Fuel. You might want to call Parks about chassis combo's and they have someone that can covert you wheels to bead-locks, maybe for less $.
Jon Hansen, 805-444-4489