gtpvette

I'm wondering if anyone has seen an adjustable front upper a-arm for a C5 suspension? I'm looking for a bit more camber and caster.

Thanks

0Randy@DRM

You should be able to get a lot of camber and castor out of the stock setup. Or get some camber plates from hardbar.

Randy

spazegun2213

the hardbar plates are nice. I have the pfadt units and love them!!! My alignment shop says its super easy to setup my car with their kit, and the settings never change!!!

gtpvette

Randy,,
Does the hardbar setup allow for more adjustment + or - than the stock setup?

Thanks

0Randy@DRM

You can find him here. I think they increase the range, but not 100 percent sure.

http://forums.corvetteforum.com/memb...-ghoffman.html

mgarfias

They do a little bit. But not the ideal way to do things.

What I did was buy Gary's kit, and get it setup to push the lower out as far as it will go. Then goto the top arm, and (with the addition of a stud kit I put together before anyone else was making them) shim it out to get the camber and caster correct.

This has the side affect of widening the front track, which is never a bad thing.

The next step I need to do with this, is put spherical bearings in the upper arms, and mount the arm to a plate that attaches to the frame. Then shim the frame out to get the adjustment I want. Using a spherical bearing in the arm here, means I mount the plates on the arm flat to the chassis. The stock setup requires that the front arm mount be shimmed at an angle to avoid binding the poly bushing I have in there.

The effect would be similar to how Lou's GT2 is setup: http://picasaweb.google.com/rfn026/L...63873439686962

ghoffman

We are working on what you are seeking. Considering the past history when I post Solidworks previews, I will post it when I have it ready for sale. Call me if you want to hear what we are working on.

Thanks,
Gary
603-682-8073

davidfarmer

using camber plates and removing any shims at the top should give you plenty of camber....I've seen over 3 degrees.

Lou's setups looks interesting and expensive however....give Riley a call in Mooresville.

meldog21

I agree. I got over -3.5 with camber plates. I had to use a **** load of shims to get it where I wanted it.

Dog

wallyman424

i actually find that running -90 degrees of camber works great.

the sidewall is a lot stickier than you would think.

gtpvette

Thanks for the thoughts guys. I'll give Gary a call today.

I guess I should of mentioned that is not a C5 chassis.



Thanks
Fred

gtpvette

Do you have a picture of this you might share???

Thanks
Fred

davidfarmer

what chassis is that, and why did the mount the upper arms that way???? Regardless, since it is a custom chassis, I would just move the mounts. The photo is too dark to see how involved it would be.

gtpvette

It's a factory five GTM. I've considered moving the mounts,,,, and may end up doing it if nothing else pans out.

Thanks

BrianCunningham

Yes, yes that would have helped.

mgarfias

Pictures of which? My current setup? That looks identical to stock except for the shims/studs. Probably a ton of other pix of that available here (I can dig some up if you really need to see).

The system I'm describing is visible in that pic of Lou's GT2 car (just imagine it with stock arms/uprights and none of the pretty carbon).

gtpvette

I'm afraid my brain editied out the 'next step' portion of your origional note wen I was reading it. Sorry. I did speak to Gary today,,,, things sound promising.

Thanks guys