Wide tires on stock KA

[simmode1]

^^^He doesn't want to slide. He wants to grip.

[PEZi]

i'm going to be running 10" wide diamond's with 275 for autocross next season... but it won't be a street thing... they'll be hoosiers that i put on at the track only

with that said... wide tires are sweet but it think they might be annoying for a DD

[FolkertSX]

i'm going to be running 10" wide diamond's with 275 for autocross next season... but it won't be a street thing... they'll be hoosiers that i put on at the track only

with that said... wide tires are sweet but it think they might be annoying for a DD

why do you think they're annoying for daily driving? when i went from 195's to 225's i noticed my car pulls alot more wherever it wants to go. is that common?edit:this doesnt happen on normal smooth roads. if the roads are uneven this happens. also changing lanes where theres not smooth lines.

[safin]

idk if you read or not but i'd be running overfenders and flaresi agree with the second statement though. but i'd also like to see what it would look like on a hatch

I posted the 235-255 setup because to me it is somewhere in the middle of stretched and max rubber setups. you have to know about autox regulations and figure out what setup works best. you are getting custom wheels from diamond racing so to make it worth it, I would get the widest I could fit with your overfenders. whatever your decision is , post pics. the ones from your other threads dont work

[racepar1]

This subject definently needs to be researched more. I remember speaking to the guys in the Zilvia 'Maximum Rubber Wheel Fitment' thread and Racepar spoke on this topic.

Apparently, tires wider than 255 will actually slow you down around the track if you don't have enough power to push them. He also added that as long as you're under 300hp, there really isn't a need for tires wider than 255.

I don't really have any track time, so I can't speak from experience or confirm this. But I've seen other things around the web that seem to support this. Instead of getting wider tires, I'd prefer to simply run a stickier compound.

On a REAL racetrack too much tire can actually slow you down around long sweepers as the amount of friction caused by tire scrub can be more then the engine can push. You still have more grip, you just can't use it. This issue would only really be a major concern with r-compounds though. With r-compound tires the primary concern is getting the tires up to the right temperature range. For a stock KA I thought the 235/40/17 RA1's that I ran were the perfect size. For a street tire I think 255 is about perfect, but I wouldn't have a problem with going up to a 275 as long as the diameter isn't too tall.

Autocross is a different beast though. On an autocross course wider is almost always better. I would think that the size range that he plans to run is reasonable for a pure autocross car. I would, however, reccomend that he runs either a 4.36 or a 4.6 ring and pinion (if his class rules will allow) as that will help push all that rubber.

[simmode1]

Clarification FTW

[FolkertSX]

Clarification FTW

yea thanks racepar1. that helped out quite a bit. ill do some research about class regulations and go from there. random question: what does FTW stand for? haha i could never figure that one out. sorry for my stupidityEDIT: is it For The Win!?? (just thought of that)

[simmode1]

For The Win indeed.

[PEZi]

why do you think they're annoying for daily driving? when i went from 195's to 225's i noticed my car pulls alot more wherever it wants to go. is that common?

my 225's do the same thing... mine is due to the extra grip over stock and camber though

and the reason i don't like big tires for DD use is because wider tires are harder to turn at low speeds... parking lots etc become annoying... especially without power steering like me

[racepar1]

yea thanks racepar1. that helped out quite a bit. ill do some research about class regulations and go from there. random question: what does FTW stand for? haha i could never figure that one out. sorry for my stupidityEDIT: is it For The Win!?? (just thought of that)

If the ring and pinion cannot be modified you can also run shorter tires to gain some gear ratio. Be aware that running shorter tires decreases the size of your contact patch though. A taller tire has a longer contact area. For RTA "street tire" class next year I plan to run 265/35/18's on 18x9.5's.

[Dire91]

I want to see these diamond racing wheels on a S14 I'm interested by that.