Moving LCA up, UCA stays put..

[Damn True]

OP had the same question posted in both forums. I merged the two with the intention of moving the whole thing to the normal suspension forum once the issue was resolved.

[rjsjea]

Bill Reilly would have the answers....I would call him first, since he designed it.

[DRJDVM's '69]

Thank you for merging the threads..... I know how complex the geomtry of the front suspension can get. Thats why I was hoping for some of the hard core suspension guys that know all the theories and math etc to take a look... I figured this was a better place to get detailed analysis of the situation. I'm looking for real data to support how and why it will change things..

I did email Bill Reilly....as expected he didnt really have an answer for me...just he was concerned it could cause some issue but had no explanation

To symplify the issue........as was alluded to above...... think of it in simple terms.....keep everything the same, but lower the mount to the UCA....how will that impact roll center, camber gain, bumpsteer and all the other geomtry factors that effect handling

[derekf]

Thats why I was hoping for some of the hard core suspension guys that know all the theories and math etc to take a look

...keep everything the same, but lower the mount to the UCA....how will that impact roll center, camber gain, bumpsteer and all the other geomtry factors that effect handling

If you're wanting math and true analysis done, you'll likely need to provide a lot of measurements; the only measurement we've got so far is 1.5 inches, and I'm not even sure that that's an exact measurement or a guesstimate.

Without measurements you're not going to get too much more than what you've got - namely, that yes, you've changed the camber curve a lot (if memory serves, the Guldstrand mod is only like .75 inch down but I am not sure since I've never done it).