A dedicated autox set to smoke the locals.
I'm okay tracking cheap durable 265-wide tires which I already have though.
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The quest for wider wheels and tires, 295, 305 and beyond...
- Thread starter Davidss2
- Start date
I'm okay tracking cheap durable 265-wide tires which I already have though.
A noble cause!A dedicated autox set to smoke the locals.
I will say that unless you are already sure you are a really top tier driver, wider tires won't pay off that much. Wider has diminishing returns, so unless you are already constantly running within a tenth of the top cars, it's not going to save you. The 9.5" on 265/275 and 10" on 295's is pretty well proven.
If you're new to AutoX, just AutoX what you got. I run FTD most of the time at my group and I run on 265's, and I run 2-5 seconds faster than other Teslas that show up. Upgrade the driver first if you aren't already sure you have.
My driving skills probably topped out years ago, so I need all the grip I can get to keep up with some half-competent C8 drivers on Hoosiers on concrete...
MasterC17
Active Member
Yeah I still believe strongly that the ideal range for a 10.5" wheel is ET30-ET35, but an ET40 works fine too.
Unfortunately, Konig HAS options for staggered fitment (25 front, 40 rear) in 18's, but not in 19's (I think it's just 25 square).
As it stands, I think your best options are either the new Martian Wheels MW05 Race setup or the Aspira AF-10's. But, neither of those qualify anywhere as being "cheap".
That all being said, a 19x10.5 ET25 square wheel setup fits no problem, and you should be fine running up to 285's on them. It's when you go bigger on the tire that it becomes a problem.
These seemed to 'fit'...staggered wheel would be better surelyI think that is the literal "splitting hairs" definition of fitting.
May your lap times be very low!
315?! Nice.
That's plenty of poke tho. But the section width of those Hohos seems to match @MasterC17's RT660s, so both 'fit.' I take it the front clearance is about as tight?
MasterC17
Active Member
Those definitely *look* like they would rub under compression. I just kept adding camber until mine fit, and they ended up with very little poke. Even then, it was extremely tight.
front is just 295 and fits really nice.
I wouldn't have thought the 315 on 10.5"+25 would go under the rear without seeing this picture. No one said anything about the fit so I assume it is ok for ASP? ...I'd probably get a pair of 11" +40 if anyone complains that these poke but they do fit so not sure someone could argue? I'd like to go SM and fit these on front w/ 335 on the rear since there is lots of room inside
(a few cone marks from spring auto x's
)He appears to have an extra 1cm of clearance from a shorter tire/wheel, which has to be worth plenty when trying to squeeze everything possible.
Any of you guys with wide setups getting any rubbage on inner fender liners?
I got me some 305 RT660, inspired by @MasterC17 . Will spend most of the day tomorrow checking for clearance under hard compression and figuring how little camber I could get away with in the rear.
I did run the tires today to them through the initial heat cycle, which allegedly helps with grip later, and I'm getting some rubbing while maneuvering with lots of steering angle. I suppose I could try to get back to stock caster to regain some clearance. Just wondering how common is this for our car?
Also, run these @70mph on my regular commute route. Surprisingly non-horrible. And I don't think there was much tailwind either.
I got me some 305 RT660, inspired by @MasterC17 . Will spend most of the day tomorrow checking for clearance under hard compression and figuring how little camber I could get away with in the rear.
I did run the tires today to them through the initial heat cycle, which allegedly helps with grip later, and I'm getting some rubbing while maneuvering with lots of steering angle. I suppose I could try to get back to stock caster to regain some clearance. Just wondering how common is this for our car?
Also, run these @70mph on my regular commute route. Surprisingly non-horrible. And I don't think there was much tailwind either.
MasterC17
Active Member
If I'm looking at this correctly it appears you have less caster than stock? I did not have any rubbing issues, but I am using the adjustable caster bushings. What size specifically did you end up getting - 305/30/19?
Yeap, the same size.
My extra caster is from FUCAs, which moves the wheel/tire a bit to the rear relative to stock. MPP bushings move it forward (if dialing extra caster).
MasterC17
Active Member
Gotcha, you could try adjusting the FUCA mount to get a bit more caster - or just jump to the MPP Bushings
I'm probably gonna add the MPP bushings at some point. A bit of slow-speed rub at high steering angles I only use on parking lots doesn't bother me much. Just thought I'd ask.
Working on rear fitment right now. I'll have plenty of clearance to sheet metal, but it looks like my rear fender liners are a mess and aren't anywhere near flush with metal and I'm gonna rub on those under full compression. Any ideas how do deal with those other than cutting half an inch or so off? I doubt something like glue or double-sided tape would hold long-term...
Working on rear fitment right now. I'll have plenty of clearance to sheet metal, but it looks like my rear fender liners are a mess and aren't anywhere near flush with metal and I'm gonna rub on those under full compression. Any ideas how do deal with those other than cutting half an inch or so off? I doubt something like glue or double-sided tape would hold long-term...
MasterC17
Active Member
Yeah those are often not the best fitment. Cutting off half an inch is probably the best option. Not a lot of ways to secure it long term.
E.Potter
Member
and just like tire stretching, you CAN go overboard the other way getting TOO wide of a tire as well ...and cause all kinds of stupidness....slower acceleration, harder steering, increased battery consumption.....blah blah yada yada....looks freaking dope though...
On a 4000lbs car, I think too wide of a tire may be well into mid- 300mm widths...
We were running 305s and still wishing we had more tire, so I don't think "too wide" is even possible yet!
TacoSteve
Closed
Amazon, I'm using a simple 5mm spacer. Looks like not available anymore but as long as you have extended studs something like this will work fine. Try and find a solid one like this not those kind with holes all over them. You want as much surface area contact as possible. The other option is get custom made spacers. Amazon.com Here's the custom spacers Truck Spacers & Adapters | Custom Built & Hub Centric | Custom Offsets
Edit: I had to drill the holes out for the 14mm studs also, easy with a stepped drill bit.
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