18"x10" and 18"x10.5" Track Wheels Options?

clintfocus

et27 18x10.5 is pushing the limit, im 10.5 et28. i know its only 1mm, but that could be the difference between fine and rubbing, but up to you to try. you would still need to spacer the rear, cause et27 10.5 in the rear is most likely going to rub in the inside hitting the damper body under compression. so the rear would still need a 15mm spacer just like the NT03

scruffydog

For the front, is it pushing the limit of not clearing the brakes or pushing the limit of hitting the fender liner during compression or at full turn? So no spacers could help the front in this case?

Thanks for all the help!

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chrischhorn

Probably clearing the fender liner. Clearing the brakes is all up to the wheel design. I had a friend who was running 10.5 wide on front of his G37 Sedan. +45 offset would not clear his Akebonos AND stuck out of the fenders. He had no choice but to use a spacer to clear the brakes which pushed it even farther out of the fender.

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scruffydog

thanks for clarifying.

man, this sucks....unfortunately rims are not something I can go buy and easily return if it doesn't fit.

This set for me will be dedicated track wheels so I hope to find something in the 21-22lb Max range.

I'm not sure if I neccessary have to have 285 all around on a 10.5 width.

Perhaps I could go Stagger again with 18x9.5 and 18x10.5 like a lot of people are doing.
If i'm lucky I could do 18x10 and 18x10.5

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clintfocus

pushing the limits when it comes to fender and fender liner, Both the PF01 and NT03 have no issues clearing the sport brakes. yeah you want the offset up front between et28 and et30 for 18x10.5

+45 prolly didnt clear the suspension arm either


just wondering why your so hesitant to run 10.5/285 sqaure? id eevn run 9.5 sqaure long berfore stagger. makes tire selection easier and FR cars tend to do well on sqaure setup. i tested 9.5/10. 275/295 before and rears were having trouble coming up to temp, and the fronts could use more heat capacity, thats why i went 10.5/285 all around. Martin has done the same and loves it. the termal behavior of those sizes for the tires is great

martin82

I was running 275 square on stock 19" stockers, my front's outer tire wear kept chunking when overheating!
My front tire wear is 100% times better now with 10.5 square!

scruffydog

I think in the end it's wheels selection and getting a 18x10.5 to fit in front. I'm trying to go away from spacers with proper offsets if i can and also a better looking style wheels with similar weight savings less than $2000. I saw the TSW Nurburgring has a good combination of weight, price and style but they prolly won't fit. I do want to go with a true Square setup as these will be my dedicated set. Ideally I want to go with 10.5 but having a hard time finding something that fits even if I'm okay with spacers.

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martin82

Easiest to fit is the nt03 that I have, with a rear 15-20mm spacer.... You are looking at like under 1200$ for those wheels.. even cheaper if u got a local hook up there!! if not let me know

Mike

you can play with the offset calculator at 1010tires.com

I know for sure that 9.5 +46 comes close to the inner limits with 275s, with 295s, I rub the control arm and require a 5mm spacer. That would make them a 9.5 +41, which has the same inner clearance as a 10.5 +33, so I would go no higher than that.


martin, you definitely want to raise it. Mine was too low and I destroyed the bottom of my first stillen bumper and had to replace it, and then my Zspeed undertray was hitting the ground and sparking in the braking zones, so I was getting black flagged.

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clintfocus

but 18x10.5 isnt a tough fit, -3 camber should do it fine, which is a good setting for track on a 370 anyway up front.

unless you get Volks, your not going to find something affordable without using a spacer. But their is nothing wrong with a spacer if its Hubcentric and using ARP extended studs.

if you wanna do no spacers and no issue what so ever fitment, then 18x9.5 et15 PF01 's will work. I did alot of research on this, ask martin, and 18x10.5 is scarce, but their are options. and it works extermely well on the 370

martin82

Mike, surprisingly the front is font! It's just the undertray and exhaust that's bottoming out. I will be making the undertray out of alumacorr next and probably go ahead and build a 3" front diffuser going back to the engine.
Before:


after HAHAHA:

scruffydog

Thank you Mike, I actually spent all day playing on that site. Since I'm new to offsets and spacers, trying to learn it all in 1 day is pretty intense mixed with going to different websites looking at options. I even thought about posting pics of what I thought might work as my setup for benchmark.




I then went to see what others had on this forum which worked, but everybody seems to only care about 19" & 20" for looks and making it flush.

I want to thank you all for being so patient and helpful with me. I hate to ask so many questions and sound like an idiot but you guys really helped.

I totally believe you which is why I appreciate so much for helping me out. I spent all day creating this spreadsheet of wheels that doesn't work and it's frustrating. I think in the end, I'm okay with using spacers, I just wish to use better looking wheels. Right now, I think the NT03+M 18x10.5" with 285 Hankook R-S3 looks pretty promising. I don't even mind upping my budget to $2K for Welds or Works if I find anything, but right now my options look pretty slim.

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clintfocus

prolly next month im getting NT03s also, just going to coordinate with martin as to what color he's going to eventually paint his so we have different looks :P LOL

scruffydog

"Function over form" right? dammit haha

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martin82

LOL, no twin wheels?

Spacers are fine, I am currently running the bolt on in the rears. Once I buy ARP studs, I am converting the rear to a regular spacer!