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Author: Subject: Roadrunner Racing SR2 Poor front suspension design
russbost

posted on 31/8/18 at 02:18 PM Reply With Quote
Can you not take the rear mounting point at the pivot end further back down the chassis, would avoid the shock & make the whole thing stiffer/more stable?





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Sam_68

posted on 31/8/18 at 02:53 PM Reply With Quote
quote:
Originally posted by russbost
Can you not take the rear mounting point at the pivot end further back down the chassis, would avoid the shock & make the whole thing stiffer/more stable?

You could move it a little further back, by welding a bracket across the top rail and the diagonal, but you'd need to be very careful to ensure that it was jigged up accurately, and I honestly don't think it's necessary: the distance between the fore and aft pickups is just fine, and the wishbone can be redesigned to give sufficient clearance to the coilover without messing about with the pickup positions:





For what it's worth, it doesn't look like a major job to convert it to pushrods and rockers, either (in which case the pushrods would give ample clearance to the wishbones). In fact, it looks like pretty much a bolt/weld on kit, which I'm sure RR would be happy to sell to the OP (not! ):







ETA: If the front pickups are deflecting as much as the OP thinks (and I still have serious doubts - check by mounting a dial gauge to measure from one to the other), the obvious solution would seem to be to simply add a brace across between them. Could probably even be bolt-on, using the same bolts that mount the wishbones.

[Edited on 31/8/18 by Sam_68]

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