You should have about 8-3/32" of backspace with a +53 offset. That puts the rim about flush with the outside fender. I have a 305/30/19 MPSS tire and don't rub but I have a Watts link which might help. Do both tires rub or just one? If just one than it could be an adjustment issue or the panhard...

I have those same wheels and offsets. I have the 295 30 19 MPSS in the front and the 305 30 19 MPSS in the rear. The rim protector from the rear tire does poke out a bit so it does not fit perfectly flush, although the rim and actual tire tread are flush. That tire combo seems to fit the wheel...

Drew, I re-used the stock bolts with the attached washer for my splitter for strength as I saw the picture from the Vorshlag build of the front strut mounts that pulled through the ABS plastic. That picture also prompted me to try these backside supports for the front splitter supports. I think...

That's the spacer I was referring to. I was not planning on welding it as I have no aluminum welding skills. Did you weld that to the splitter or just welded all the areas that were cut? I thought I could just sandwich the square tube in between as all the bolts running through it would hold it...

Drew, I was thinking of lowering my custom splitter so it works a bit better as well. I've read that even a 1" lowering can be significant. After re-looking at some of the Vorshlag aero build, it looks like they used some 1" square aluminum tube as the spacer and cut slits in it to bend it to...

Set-up looks good. I've run my set-up for 2 track days, 13 sessions for about 4-1/2 hours, and the 20mm spacer combo worked well. After the first couple of sessions the combo held torque at 90 ft/lbs for the rest of the time, so I assume it was just new wheels. It looks like there is a lot of...

Those spacers look really nice , and appear to be light too. I put together a similar set-up using an H&R 20mm hubcentric spacer with a set of +55 Forgestar wheels with 305 35 18 Nitto NT01's. Have not tracked the combo yet but did some street driving and so far all is well. I have some pictures...

Cloud9, How much clearance do you have between the barrel of the 18" CF5 wheel and the caliper? While I did not measure yet, just from a visual it seemed greater than 1" with my setup. It would be interesting to find out how much clearance the 18" CF5 wheels have on the 15" brake package. I'll...

I forgot to add the wheel weights. Each wheel weighed in at 22lbs and the 22mm spacers were 1 lb. each. I believe the F14 version of these wheels weigh in at 21lbs but do not have enough clearance for the 15" brake package like the CF5's do. With the spacers I have at least 1" of clearance from...

Here are some pics from my initial mount and test with the 18 x 11 (+55) and 305 Nitto combo using the 20mm H&R spacer in front.I have about 5mm of clearance from the rim to the strut. There is a bit of a step on the strut where the endlink is attached that takes up .1" of clearance, so...

FD Sako, I think you would want to raise the mounting location of the watts link if you have understeer, as that would raise the roll center relative to the front. If you lower the roll center then you would need more spring rate to compensate. NFSBoss has a lot more spring rate than you do with...

It looks like they are using some pretty big wheel spacers on the front. I guess they would have to because of the smaller wheel and tire set-up. I wonder if that set-up is lighter than a wheel with less backspacing.

Surfer Geek, With the Cortex offset struts you would need only a small spacer to provide enough clearance for an 11" wheel. Going to a larger spacer like a 15mm or 20mm would be to push the wheel out as far as possible to have a more square set-up, so the front and rear track are closer in...

I settled on a +55 fitment for some 18 x 11 CF5's all around. They're en route and I should have them on Monday. I have a set of 20mm H&R spacers which will give me about 6 mm of clearance to the strut. My struts are AST 4150's which have a bit thicker strut housing so a bit less clearance. With...

The regular LS bracket is set-up the same way. Because the Longacre struts are a bit too long I just drilled a hole about 1'' further back on the LS bracket and installed with, I believe a 1/4-20 bolt, from the top. Looking at the picture of the Blowfish bracket it looks like there is enough...