sscam69 said:
Look up Stingray crazy and on his webpage he has a pic of a car similar to that one if not that car.
I believe its one of his buddies.
Mako So do you think with the offset trailing arms and with the given 1" of extra fender well on 70+ C3's you can fit 315's in the back with 9.5" rims?
Frank
Frank,
315's need a 10-11" rim (315mm == one foot more or less). 285's can go on a 9.5" rim and should fit no problem. But the 315's will require some testing/measuring, I'm skeptical that they will fit to be honest but...
Here's a way to know for sure for cheap:
Given -4.75" rear offset (the most I could go w/o rubbing against the frame) gives a 7.25 positive "stickout" on an 11" wheel.
Add .25" for sidewall cross section "bulge" on each side and, your looking at 7.5 inches worth of tire "stick out" from the mounting flange on the brake rotor for the fender side of the tire and 5" of "stick in" towards the frame.
Sooo, fabricate a T shaped test jig from some 1x2s that bolts to two lugnuts and extends outwards to the same circumfrence as your tire (say a 26" tire, so you need to extend 13" out from the
center of the hub.)
Now make the T part of the jig extend outwards by 7.75" and inwards by 4.75", add in an extra .25 at both ends perhaps for safety sake and carefully rotate the jig and look for interference with the spring at full droop and again at the normal driving location.
Assuming the jig clears everything, I'd then remove the spring bolt and compress the wheel all the way up onto the bump stop and retest once again.
You can also do this to test for interference on the inside of the frame by putting the cross piece at the end of the jig at the correct location.
That's the only sure way to know if a 315 will fit on your car that I can think of. It would be VERY cool indeed if you could do it under the stock fender, let me know if it's gonna work or not.
I've got about .3" worth of clearance on the outside and perhaps .5" worth on the inside, which is sufficient. If I had it to do again, I'd pull the wheel in from 4.50" to 4.75" to get more breathing room at the fender lip.
Note that I did not use a test jig to cook up my own combination, I used a ruler and a lot of dead eyeing of the wheel well instead. I don't recommend that to others though, it gets expensive real fast if you make an oooops.
CYa!
Mako