Drag Racing Discussions > Front Engine Dragsters
Newby with Questions
Oldford 65:
Just bought a FED roller and wonder what I should set the pinion angle and tranny at, powerglide with long tailshaft and 9" rear. I will be using a driveshaft. Also with the 1/4" plate between motor and tranny will that be a problem for the starter and converter to engage? I'm putting a sbc in it. I've built a dozen streetrods starting with a bare frame but this is a little different. I'll get some pictures posted soon. Thanks
rooman:
The driveline should be a straight line from the crank centerline to the rear end. Chassis builders normally use a dummy block and a line up bar that bolts to the third member to position the motor/trans in the frame. By driveshaft are you talking a regular U-jointed unit or a splined coupler style?. It is a good idea to let your converter manufacturer know that the unit will be installed with a mid plate. On most starters there is enough pinion travel to engage the ring gear but it would be a good idea to double check.
Roo
Oldford 65:
Thanks for the info. I was planning on using a regular driveshaft with u joints....is that a bad idea? Only planning on having 350 - 400hp. I'm 65 years old, I think that will be fast enough. It will mostly be test and tune and some bracket racing.
fuel749:
On a chevy, the starter and ring gear relationship doesn't change with the addition of a motor plate. The converter will need spacers or need to be purpose built for use with a motor plate.
dreracecar:
A drive shaft with U-joints is not the way to go, there is more work into building a cover around it and unless you angle the relationship of the yokes at both ends you will pound the u-joints which can lead to failure.
Couplers are relitivly inexpensive and dont require too much maintenence.
Is the reason for the u-joints, because you already have a stock the 3rd member with the yoke on it? Stock Ford housings with blow the pinion carrier out of it unless its nodular iron
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