Want to go wider fronts

[JKnight]

Damn Pappy, that's great. What are the details of your setup? Control arms and such...geometry still worked out nicely? I assume it did knowing a little about your projects, but figured I'd ask.

[mfain]

Originally Posted by JKnight

Damn Pappy, that's great. What are the details of your setup? Control arms and such...geometry still worked out nicely? I assume it did knowing a little about your projects, but figured I'd ask.

Thanks. That is part of the high travel, low roll suspension (heavily influenced by Ron Sutton) on my 56 Corvette track car. Fabricated, long control arms with a Sweet rack. The trick to getting enough wheel turn with lots of travel and a 9 inch backspace (for reduced scrub) was the fact that the short rack is mounted high (to achieve the right bumpsteer) which put the outer tie rod ends on top of the steering arms. This put them closer to the center of the barrel of the wheel (vertically) which allowed more degrees of turn (28 degrees) before the tie rod hit the rim during full compression. Lots of computations and trial and error - but it worked out the way I wanted. Once you get the tie rod clearance worked out, I suggest you remove the springs, drop the nose of the car to the fully compressed attitude, and turn the wheels full in each direction. It is common, with very deep offsets and depending on the amount of caster you have dialed in and how much, if any caster gain you get with compression, for the rim to hit either control arm. I actually built a plywood mock-up tire and wheel to use as a clearance gauge.

Pappy

[jdeliveryguy]

Was wondering if the OP solved his problem. Did the guys at Speedtech have a solution?

[Sheck44]

Hey guys, yes I did talk to Roger and the best and easiest way to get tie rod clearance is to replace the standard tie rod with a heim joint.

similar to this ... but without the bump steer application

https://www.cachassisworks.com/p-124...uter-only.aspx

Cheers
Steve

[jdeliveryguy]

Thanks for reply