Fran Hall RCR
GT40s Sponsor
Working for the Dark side...!!!!
- Thread starter gt40fran
- Start date
very nice Fran
Very nice job Fran,,,,just some ramblings...
I have often wondered what a Corvette C5 suspension would look like in a mid engine car.... Now I know. It fits nicely, and the "long" trailing arms are gone.... Kinda suprised that they didn't use the entire rear aluminum "cradle", but that may not have worked, since the tranny is hanging out the back with a typical mid-engine setup and the Corvette has the tranny ahead of the rear axle.
The ability to have some isolation (rubber bushings) in the suspension are also nice on a street car. There is going to be more "moving around" with bushings in there and funny things with respect to toe changes can happen, but it works on the Vette (I know I have one), so I guess it's ok....
I am guessing that they used the Corvette stuff up front too, how about a shot of that, just curious as to how they framed it in...
Not that big on tube frames, but if you are going to have a track car you should havea cage nowadays anyway. Still think that Fran's chassis is nicer, but with the mods you made to triangulate the back end it will for sure be a lot stiffer than it was before.
Are you going to add some tubes to the roof section to triangulate it or are you done?
I have often wondered what a Corvette C5 suspension would look like in a mid engine car.... Now I know. It fits nicely, and the "long" trailing arms are gone.... Kinda suprised that they didn't use the entire rear aluminum "cradle", but that may not have worked, since the tranny is hanging out the back with a typical mid-engine setup and the Corvette has the tranny ahead of the rear axle.
The ability to have some isolation (rubber bushings) in the suspension are also nice on a street car. There is going to be more "moving around" with bushings in there and funny things with respect to toe changes can happen, but it works on the Vette (I know I have one), so I guess it's ok....
I am guessing that they used the Corvette stuff up front too, how about a shot of that, just curious as to how they framed it in...
Not that big on tube frames, but if you are going to have a track car you should havea cage nowadays anyway. Still think that Fran's chassis is nicer, but with the mods you made to triangulate the back end it will for sure be a lot stiffer than it was before.
Are you going to add some tubes to the roof section to triangulate it or are you done?
Fran Hall RCR
GT40s Sponsor
Bill,
thanks...we did already..
Manny.
there is no room in the roof section for additional tubes as the owner is a tall guy and the space is somewhat limited now..
There are tons of pics on the FFR forum...it may be worth a look f you are interested in what FFR did.
thanks...we did already..
Manny.
there is no room in the roof section for additional tubes as the owner is a tall guy and the space is somewhat limited now..
There are tons of pics on the FFR forum...it may be worth a look f you are interested in what FFR did.
Fran Hall RCR
GT40s Sponsor
Thank you Marcus..your ingenuity is pretty keen too...even if you do have big feet...
This forum breeds cool stuff......willingness to share and openess of knowledge is hard to find these days...
This forum breeds cool stuff......willingness to share and openess of knowledge is hard to find these days...
Especially w/o the constant ego bashing.
Fran Hall RCR
GT40s Sponsor
Some of us are proud and glad to be part of a greater entity...
ALL BS ASIDE....
I love my job and really get a major charge from this group of guys...even the ones that dont like RCR.....
ALL BS ASIDE....
I love my job and really get a major charge from this group of guys...even the ones that dont like RCR.....
Paul Thompson 'Hooligan'
Admin
Thanks for posting that Fran... will prove most helpful
Fran, your workmanship and design capability is awesome! I enjoy all the updates on your various projects, I just need more time, space and money!
You are an inspiration to us all!
Dave
You are an inspiration to us all!
Dave
Fran Hall RCR
GT40s Sponsor
Hi Rob,
No messages ...I will check my spam boxes but they also auto delete....sorry.
I will give you a jingle tomorrow...
No messages ...I will check my spam boxes but they also auto delete....sorry.
I will give you a jingle tomorrow...
The factory C5 (and I think C6 as well) bushings aren't really up to the task of tracking a ~3100lb street car on decent rubber (you get alignment shifts). They might be ok on a ~2300lb GTM, but I'd think an upgrade to VB&P's poly-graphite bushings would in order for any GTM build.
I was disappointed to see that FFR didn't seem to correct the rear tire rod (bump-steer) geometry from the C5.
I was disappointed to see that FFR didn't seem to correct the rear tire rod (bump-steer) geometry from the C5.
Fran Hall RCR
GT40s Sponsor
I know that the arms on this particular car are the "t1" production upgrades ones with higher durometer bushings...so are more than up to the task...
But I do agree with your other comments.
Another thing that is strange is the front upper arm mounts are turned 90deg from stock and make suspension adjustments almost impossible without making a slot , this then required the nut and bolt clamping force to do all the work..and maintainalignment.... not ideal in the least.
But I do agree with your other comments.
Another thing that is strange is the front upper arm mounts are turned 90deg from stock and make suspension adjustments almost impossible without making a slot , this then required the nut and bolt clamping force to do all the work..and maintainalignment.... not ideal in the least.
Chris Kouba
Supporter
Fran Hall RCR
GT40s Sponsor
Eric....pm
Chris ...got it.
Chris ...got it.
Fran,
This is turning into the "is your email working thread" - as a test (as before) I am sending to both your email accounts and I am PMing you at the same time (about 9:45 am PT today, monday) please let me know what happens....or doesnt happen.... see if we cant figure out the disconnection here.
Thanks
Sorry boys...
This is turning into the "is your email working thread" - as a test (as before) I am sending to both your email accounts and I am PMing you at the same time (about 9:45 am PT today, monday) please let me know what happens....or doesnt happen.... see if we cant figure out the disconnection here.
Thanks
Sorry boys...
