wheel advice needed~?

[Leonardo]

Originally Posted by fatoni

I know some reasons why that tire would be the choice. It's just hard to provide input when that size isn't really the goal (it shouldn't be anyways). Looks? Probably tell the guy to get 18s. Performance? Maybe stick with a 225 unless you're worried about BBK clearance. That's all I'm getting at.

I assume that you have not driven a twin with 245's... I am on my 10th (at least) different wheels/ tires setup.


I have tried most of these sizes staggered and square. And a few setups I tried with different brand tires. Meaning I had 4 Michelins, then got 4 different brand tires.


215/45/17
225/45/17
245/40/17
215/40/18
225/40/18
245/35/18


17x7
17x7.5
18x8
18x9


So, with my evolution of trying different sizes, I have settled on 245/35/18 square. I like how they drive.

[fatoni]

Originally Posted by Leonardo

I assume that you have not driven a twin with 245's... I am on my 10th (at least) different wheels/ tires setup.


I have tried most of these sizes staggered and square. And a few setups I tried with different brand tires. Meaning I had 4 Michelins, then got 4 different brand tires.


215/45/17
225/45/17
245/40/17
215/40/18
225/40/18
245/35/18


17x7
17x7.5
18x8
18x9


So, with my evolution of trying different sizes, I have settled on 245/35/18 square. I like how they drive.

Not with any anger I haven't. All I can do is echo the things people faster than me say. I don't want to step up to tracking my weds on 245 until I'm fast on the oe on 215. I guess my point is that people who can use all that tire will rarely ask that question.

[Leonardo]

Originally Posted by fatoni

Not with any anger I haven't. All I can do is echo the things people faster than me say. I don't want to step up to tracking my weds on 245 until I'm fast on the oe on 215. I guess my point is that people who can use all that tire will rarely ask that question.

I get where you are coming from, and if this thread was track focused, I'd agree with you, but there is more to driving than being the fastest. In fact a slower setup may feel better to DD.

[mrg666]

I have been driving with Konig Hypergram 17x8+40 wheels and 245/40-17 tires without any problem. No camber adjustments either. Very happy with the configuration. Just like they always say, it should have come factory like this. I think this is the widest I can do with just take-off/put-on.

[Leonardo]

Originally Posted by mrg666

I think this is the widest I can do with just take-off/put-on.

Please explain what you mean.


What 245/40 are you rolling?


Konigs are great wheels for the money. I have Konig Oversteer wheels.

[mrg666]

Originally Posted by Leonardo

Please explain what you mean.


What 245/40 are you rolling?


Konigs are great wheels for the money. I have Konig Oversteer wheels.

I just took the stock wheels off and installed the new wheels with 245/40-17 general gmax as05 tires. There is only about half inch space between the inner walls of front tires and stock coils. I wouldn't feel comfortable if it was any tighter. Hope this is clear now.

Oversteers look better than hypergrams, imo. But I chose hypergrams in the end for specs. They don't look bad now that I had them for a while.

[Leonardo]

Originally Posted by mrg666

I just took the stock wheels off and installed the new wheels with 245/40-17 general gmax as05 tires. There is only about half inch space between the inner walls of front tires and stock coils. I wouldn't feel comfortable if it was any tighter. Hope this is clear now.

Oversteers look better than hypergrams, imo. But I chose hypergrams in the end for specs. They don't look bad now that I had them for a while.

I get what you are saying now. Thank you for the clarification. Haven't tried those tires before...


I like the amount of concaveness the oversteer has. It also is 20lbs, so not crazy heavy. Your set is lighter weight and is "flow formed"; which they claim makes them stronger. There really aren't many options for lightweight wheels in the price range of the Hypergram. Nice Choice!




I was running 18x8 +45, which is 5mm closer. I added a spacer to be able to add camber.

[mrg666]

Many members state narrower tires are fun and playful to drive. But with FI, standard width was a little too playful. I wasn't able to put the power on the road and even daily driving turned into a struggle with oversteering. 245 Generals solved the problem. They have very good grip and they restored the confidence/stability. These are AS, not summer though. But my decision is to stick with AS tires as we get too much rain during summer in the Adirondacks. I feel safer with AS.

Cheers!

Originally Posted by Leonardo

I get what you are saying now. Thank you for the clarification. Haven't tried those tires before...


I like the amount of concaveness the oversteer has. It also is 20lbs, so not crazy heavy. Your set is lighter weight and is "flow formed"; which they claim makes them stronger. There really aren't many options for lightweight wheels in the price range of the Hypergram. Nice Choice!




I was running 18x8 +45, which is 5mm closer. I added a spacer to be able to add camber.

[churchx]

Those many members automatically assume that car is NA, like most are. And "adjust" own advises/suggestions, when they are given for those running NA.

[wparsons]

Originally Posted by Demonbiscuit

several questions after reading a lot of guides/ watching videos on wheel fitment.
my goal: to run 245/40s on my 2017 86.
from the start i wanted to run 17" wheels but I noticed a lot of people are running 18s. So is there a reason to why they choose 18s over 17?
and how wide would a 17 need to be to safetly fit a 245/40 without rubbing or having body issues.

You'll need to answer a lot more before getting a good answer...


What are your plans for the car? Lowering it at all? Springs, or coilovers? What kind of driving? What sort of alignment specs? What kind of tires(EHP tires run wider than normal for the same size, sometimes up to an inch wider)? Keeping the car N/A, or adding a turbo/super charger?

[jflogerzi]

I am enjoying my koing hypergrams in 17x8 with 225-40-17 Firestone Indyhawks. About a .6 lbs lower difference per corner and better level of grip. For under 400$ and a tq340 I am happy. Looking forward to taking the car to it's first track day after getting my suspension, alignment, and wheels and tires done.

Sent from my ONEPLUS A5010 using Tapatalk

[Demonbiscuit]

Originally Posted by Lynxis

To answer your question, I have a few other questions:

Is there a particular reason you want to run 245 wide tires? Are you going to run boost, autoslalom or track? If not, then you should consider 225s because you will have fewer rubbing issues and they cost less and be no less effective as long as they are of a decent compound.

Have you looked at exactly which tire you want to run? A Hankook RS4 245 is wider than a Michilin PS4 245 and that may affect what will fit. Of course, I think this ties into the first question.

Have you done anything to your suspension? If not, do you plan to? Running coilovers gives you a lot more room inside the wheel well and having camber adjustment will also affect how things fit.

I'm not planning in suspension mods. I work at a shop so I can do everything myself so if I need to tweak alignment I can. as for everyone asking 245/40 fits closer to stock vs 225/45. Right now I'm doing just exhaust and tune mods until the car is paid off before looking into FI. mostly city driving with a occasional track trips.

mostly looking for more grip as get more power out of it. also don't know how much is too much grip before body roll takes over.

[Lynxis]

Originally Posted by Demonbiscuit

I'm not planning in suspension mods. I work at a shop so I can do everything myself so if I need to tweak alignment I can. as for everyone asking 245/40 fits closer to stock vs 225/45. Right now I'm doing just exhaust and tune mods until the car is paid off before looking into FI. mostly city driving with a occasional track trips.

mostly looking for more grip as get more power out of it. also don't know how much is too much grip before body roll takes over.

Wow, I wrote that comment back in 2018... If you plan to go FI before you run out of tire, then 245s will make more sense but if you're worried about how tall a 225/45 is vs the stock tire, it's only 1.5% taller. That means when your speedo reads 100mph, you are really travelling at 101.5 mph. With 75mph top speed limits country wide, thats at most 1mph over what your speedo reads which is really nothing and can basically be ignored as long as you don't speed.

As for what will fit, as I mentioned, it depends what tires you are going for although I understand it is possible to fit most 245/40r17 under stock fenders and suspension on a 17x8 or 17x9 +35 wheel. Anything with less offset will contact your spring perch. Note that something like -48 is technically less offset. A 17x9 +35 will end up with some poke up front but that can be minimized by dialing in some negative camber, you just gotta be careful that you avoid the spring perch on such a wide wheel and tire up front. You should give yourself at least 5mm of clearance to allow for some deflection.