Ron Earp
Admin
Doing some more setup and prep work on the T70 for the UTCC. We've lowered the rear a bit, ditto on the front, and set everything back up again. We've also done extensive camber curves for the front throughout the suspension range of motion and spent quite a bit of time getting everything just so. We were in pretty good shape last time out but this time I think we're in very excellent shape as far as setup goes.
If other T70 owners are interested I'll post up our final suspension settings but off the top of my head we're about:
-0.5 camber rear
-1.2 camber front
6.7 caster on both sides rear
5.5 caster on both sides front
About 3/32" toe in front
About 1/16" toe in rear
Front springs at 6" tall and 1000 lbs
Rear springs at 8" tall and 850 lbs
Rear ride height is right at 4" and the front ride height is a bit less than that. Ride height and spring changes were our big ones this time around.
We've also added more weight to the car in the form of the DR COOL in the passenger side of the car. The DR COOL will be needed though as July at VIR is damn hot. Scale setup is shown with everything installed and we ballasted up for a 200 lbs driver this time around using cinder blocks and dumbbells. 9 gallons of gas, so about 5/12ths load of fuel.
OH! And the dang ol half shaft angles are way down. When we set the rear up again at the lower height these were very much improved - down to 11 degrees from essentially 17-18 degrees. Much more tolerable. I think I've banished all thoughts of flipping the transaxle because if we did that we'd end up with basically the same thing, about 8-9 degrees, but more problems if we wanted to RAISE the car.
Since out last track outing back in September it hasn't done any more track work, but, it has been driven 728 miles on the street without any issues. Starts, runs, shifts, drives - works as it should. A lot to be said for simplicity of a V8 with a carb, simple electrics, and no fancy bits beyond what is needed to make the car run.
If other T70 owners are interested I'll post up our final suspension settings but off the top of my head we're about:
-0.5 camber rear
-1.2 camber front
6.7 caster on both sides rear
5.5 caster on both sides front
About 3/32" toe in front
About 1/16" toe in rear
Front springs at 6" tall and 1000 lbs
Rear springs at 8" tall and 850 lbs
Rear ride height is right at 4" and the front ride height is a bit less than that. Ride height and spring changes were our big ones this time around.
We've also added more weight to the car in the form of the DR COOL in the passenger side of the car. The DR COOL will be needed though as July at VIR is damn hot. Scale setup is shown with everything installed and we ballasted up for a 200 lbs driver this time around using cinder blocks and dumbbells. 9 gallons of gas, so about 5/12ths load of fuel.
OH! And the dang ol half shaft angles are way down. When we set the rear up again at the lower height these were very much improved - down to 11 degrees from essentially 17-18 degrees. Much more tolerable. I think I've banished all thoughts of flipping the transaxle because if we did that we'd end up with basically the same thing, about 8-9 degrees, but more problems if we wanted to RAISE the car.
Since out last track outing back in September it hasn't done any more track work, but, it has been driven 728 miles on the street without any issues. Starts, runs, shifts, drives - works as it should. A lot to be said for simplicity of a V8 with a carb, simple electrics, and no fancy bits beyond what is needed to make the car run.