Seriously, not seeing anything. If over steering wouldn't you be seeing more corrective steering??? like drifting???
Rear Axle alignment odd tire wear
Posted 03 August 2017 - 08:02 PM
Looks like it holds the road pretty good to me. Seems to be parallel with the other cars in the corners. I'm saying if it's out of shape it's very subtle.
Posted 07 August 2017 - 08:35 PM
Mike normal adjustment to cure oversteer won't come into play here; while the frequency of the oscillation is reduced the car still squirms around. Besides if you want to go fast in a 1200 oversteer is your friend. The car is not capable of power oversteer above around 60-65 mph, you want the car to keep rotating while you have the gas pedal to the floor. If you drive it ultra tidy with minimal tire squirm like my Formula 500 you'll be 2-3 seconds a lap slower this if you drive like a fiend.
I talked to another local racer who ran a leaf sprung car (Corolla GTS) and he said his car would show similar wear pattern on the rear just not as pronounced. He ran the car on radials so that me be the difference.
I've been docking with the bodywork on the Formula 500 and haven't got chance to check everything yet.
Posted 08 August 2017 - 04:30 AM
Tom, If you can get the car on a latest greatest alignment rack do it. It will give you all kinds of useful info. Sit in the car when its aligned or put suitable weight in the drivers seat. We tried the 'T' bar on our roadster initially. Actually tried 3 or 4 different suspension configurations on the rear. Leaf springs just aren't two cooperative. We ended up removing the 't' on the T bar made spacers to fit around the spring and the axel attaching points so the spring could 'float' a bit instead of being clamped solid and used a panhard bar, massive custom re-valveable Monroe shocks and an adjustable roll bar. We took a leaf out of the comp springs to try and soften the rear up and had the springs de-arched even more.
Posted 08 August 2017 - 08:42 PM
The in both vintage GT-lite B-sedan the rules allow me to switch to coil rear shocks; this is the other part of the equation if we are going to install a panhard or Watts Link why not just go all in and add coil rear springs. Naturally being drain bramaged as I am I enjoy the hoon factor of a leaf spring car.
Off topic a bit but where does one get custom valves Monroe shocks?
Posted 09 August 2017 - 08:24 AM
Not to sound old, cough, cough, back in the seventies Monroe had a racing div. They where big at Indy & stock car racing.
Our rule structure back then mandated that we had to keep the leaf springs.
I'd still install a panhard bar even with the leafs, cheap and simple.
Posted 10 August 2017 - 08:27 PM
The intention was to put a panhard bar on the car, until my fabricator saw the funky wear pattern. He wants me double check everything before we do any upgrades. Having a housing that doesn't move will not thing if the axles end play in them. I got,the last bit I needed to fab for the Formula 500 done last night so I'll finally get back to the 1200. I've got 6 weeks to our next event, which is a track day so I'll be able to do some testing.