One set of Toyo RRs 315/18s ( new size ) in stock now at the Tire Rack.
I’m assuming you meant 305’s. 315’s won’t fit on a 10” rim. Even 305’s are pushing it.
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One set of Toyo RRs 315/18s ( new size ) in stock now at the Tire Rack.
Lots of great info listed above! There are a couple more points I would like to touch on regarding wheel strength and fitment. First off, all of our wheels are certified to exceed JWL/VIA standards. Second, our barrels are designed to give the most caliper clearance possible and the 18" diameter lineup clears S550 15" 6 piston brakes!
For your car to effectively run a 305 or 315 section width tire, I highly recommend 11" wheels. Our EC-7 18x11" ET52 looks perfect with a 305/35-18 NT01 or R888/r wrapped around it, along with the 315/30-18 BFG Rival. These will require at most a 25mm spacer if used with stock style suspension. Those with coilovers can sometimes run less of a spacer, all paired with extended wheel studs of course. This is the only way to get a truly rotatable 11" square fitment. Camber plates are also crucial to optimal tire performance and life. Without camber plates, you will quickly wear through the outside edge of the tire.
This car is sporting our 18x11" ET52 with 315/30-18 Rivals and a 20mm spacer up front with -3* of camber, which as you can see clears the strut just fine and doesn't rub the fender even when the suspension is compressed.
- Cory
This is great info! New here as well. As part of my rebuild, I've already installed the longer ARP studs and have the respective lugs. Being able to use 315/30/18 Rivals square with the EC-7 is great news (Budgeting that wheel and tire combo to complete the build).
I do have 2 questions about the photos above, would you know if it is a coilover setup for the 20mm spacer or a standard strut set up? Similarly to the other question regarding Roush steering rack lock clips, does the Mustang in the photo use them or something similar?
My current setup is:
Maximum Motorsports Road and Track Springs
Bilstein HD struts and shocks
Vorshlag Camber plates with Vorshlag spring perch
Running Apex 18x11s with used Pirelli slicks ( easy to acquire and quite reasonable ) and have a set of Hoosier R7s ( 315/18s ) ordered. I really like the M&M Camber Plates for pricing and quality. Black Boss would echo that sentiment as he has found them great for both his Boss and GT 350.
What size Pirelli's are folks running on the Apex 18x11's? I ordered some 315/680/18s and Cortex says those may be too big... I have the full cortex system so I'm hoping with some 1/2" spacers up front I'll be ok running square.
Pirelli slicks run small compared to Continentals, so I think you will be fine as far as the wheel vs tire relationship is concerned. A friend of mine picked up some 305/660-18 Pirelli slicks from the PWC when they were in Portland last month, and those tires fit well on his 10" wide wheels whereas my 305/660-18 Conti G5000 were pretty bulged a 10".
Thank you for this. Is there a loose agreement that a 1/2" spacer is the correct size to run up front if running the Cortex reverse front struts, or do I have more clearance? I seem to recall Darrell from AV8 thinking 1/2" was the one to use.
15mm works out to a whisker over 1/2" so I guess I'm going to find out here shortly under my GT500...