Ride,Stance & Handeling ?
Team Owner
Joined: May 2001
Posts: 29,745
Likes: 3
From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
I am running 17x8.5's and 17x9.5's with no alteration to the car other than wheel adapters and cut front springs to lower it.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by cruzzin-style
Hi 'norvalwilhelm": So, U didn't have any trouble mounting the rear coil overs?
I made 7 attempts before I was happy. A number of times one was welded in solid and after testing for range of motion I didn't like something and I cut it back out.
I also ran a number of mounts past my engineering class and asked them to predict cyles and weaknesses and they convinced me on one design that it would fail eventually.
Finally I put no mount in shear, everything is tension and compression. NOthing in shear, nothing that gets pealed off with high initial loading.
Spread loads out over area.
No it was not easy
To me the front went in the first time but alot of cutting/welding/fabricating.
Done right it is not easy and takes alot of fabricating skills.
Better be good with a welder.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by jdunne
I have 17x8 with 225.50.17 front and 255.50.17 rear with no issues at all......john 
I have had test rims in 10 inch by 18 with 5 inch backspacing, no tires and that rim doesn't fit under our cars.
Forget tires, center the rim that is in under the fender lip.
I also reduced my lip to 1/2 it's original thickness for more clearance.
Remove the hanger bolt and check all range of motion.
I have 6 1/2 inch backspacing and that is absolute maximum even with a modified frame.
That does put a 10 inch rim inside the outer fender .
Instructor
Joined: Feb 2005
Posts: 147
Likes: 0
Originally Posted by norvalwilhelm
I made 7 attempts before I was happy. A number of times one was welded in solid and after testing for range of motion I didn't like something and I cut it back out.
I also ran a number of mounts past my engineering class and asked them to predict cyles and weaknesses and they convinced me on one design that it would fail eventually.
Finally I put no mount in shear, everything is tension and compression. NOthing in shear, nothing that gets pealed off with high initial loading.
Spread loads out over area.
No it was not easy
To me the front went in the first time but alot of cutting/welding/fabricating.
Done right it is not easy and takes alot of fabricating skills.
Better be good with a welder.
I also ran a number of mounts past my engineering class and asked them to predict cyles and weaknesses and they convinced me on one design that it would fail eventually.
Finally I put no mount in shear, everything is tension and compression. NOthing in shear, nothing that gets pealed off with high initial loading.
Spread loads out over area.
No it was not easy
To me the front went in the first time but alot of cutting/welding/fabricating.
Done right it is not easy and takes alot of fabricating skills.
Better be good with a welder.
No problem with the welder & fabricating. Our group here is sort of like Monster Garage, Rides, & Overhaulin' all rolled into one.
So, exactly where did U mount the coil overs in the rear? The same location as where the shocks mount? I didn't think there was enough room to put them there. Do U have any pics of your rear set up that you'd be willing to share?
Just trying to get some ideas from someone who has done this set up. 
We're also toying around with the possibility of "bagging" the rear. The only obstical is getting the tires not to "scrub" as the car lowers. Electric powered assisted "smart struts" are a possibility. I'm looking into that.
Drifting
Joined: Feb 2002
Posts: 1,906
Likes: 0
From: Berlin
Originally Posted by Taijutsu
Any problems w/alignment or handeling? I'm trying to evolve into a Pro Tourer, ride is top priority for me. Comments please. TIA
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
There is about 4 1/2 inches between the boxes and the swing arm and a coil over is 4 inches OD so it fits if center properly.
My upper mount is in the stock location only I plated the frame to spread the load and made a new mount out of solid steel.
The lower mount is straight down and attached to the side of the swingarm with a properly designed mount.
Sorry for the large picture
My upper mount is in the stock location only I plated the frame to spread the load and made a new mount out of solid steel.
The lower mount is straight down and attached to the side of the swingarm with a properly designed mount.
Sorry for the large picture
Burning Brakes
Joined: Jul 2000
Posts: 963
Likes: 0
From: melbourne,Australia
Originally Posted by cruzzin-style
Hey, what brand tires do U have. Are the rears the same brand, model , tread type, as the fronts?
I'm running 235/55R/17's in the front & 245/50R/17's in the rear. I'm running Dunlops......they're the only brand available that have the sizes I needed that matched front & rear. The rest of the brands, either had one or the other, but not both.
What year is yours?
I'm running 235/55R/17's in the front & 245/50R/17's in the rear. I'm running Dunlops......they're the only brand available that have the sizes I needed that matched front & rear. The rest of the brands, either had one or the other, but not both.
What year is yours?
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Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,443
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The advice I give everybody going for aftermarket wheels is:
Shop for the tires you want and then buy the wheels to fit them. I have 17X9 fronts and I'm thinking about 18X13 rear wheels for 345 width rears at 27 inch dia.
One inch shorter springs lower my front end @1.5 inches.
Shop for the tires you want and then buy the wheels to fit them. I have 17X9 fronts and I'm thinking about 18X13 rear wheels for 345 width rears at 27 inch dia.
One inch shorter springs lower my front end @1.5 inches.
Burning Brakes
Joined: Sep 2004
Posts: 917
Likes: 0
From: Vernon British Columbia
St. Jude Donor '05
First C3 General Poster!
Im pretty well set on doing 18" rims all the way around, 9s in the front and apparentally now 9s on the back. With 18x9's on the back, with offset trailing arms, would lowering it out be a problem at all? If not would going with a maximum width tire make up for some of the traction loss from stepping down from the 10s?