I will be purchasing tires soon and I wanted to try staggered sizing, I will probably be trying the hankook ventus rs2's, I really want to try a really wide tire up front like 245 or 255/45/16 with a 195 or 205/50/16 in the rear, obviously I would have to roll the hell out of the fenders and probably run wheel spacers but do you think it is at all possible on a 93 civic si? the rest of the car is setup like this:

Mugen N1 Dampers 16k f, 18k r
Spoon SW388's 16x7 +45
Stock front sway bar, stock gsr rear sway bar
Art morrison 4pt rollbar
etc....

just wanted some insight, what is the widest tire you've heard of someone running on a eg?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by N1 Andy &raquo;</TD></TR><TR><TD CLASS="quote">I really want to try a really wide tire up front like 245 or 255/45/16 with a 195 or 205/50/16 in the rear...</TD></TR></TABLE>
You an auto-tosser or a drag racer?

 

Widest front tire I've seen on an EG is Rodney's SM beast with a 275/35/15 on the front. That will never fit under a stock fender though. The tire sizes you're looking at are going to kill your gearing.

 

275 hoosiers are going to eat you...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thawley &raquo;</TD></TR><TR><TD CLASS="quote">
You an auto-tosser or a drag racer?</TD></TR></TABLE>

Im not into drag racing, I want to auto-x and do some lapping days at pacific raceways next summer. Right now im a hardparker/drive the hell out of the car on the street, but would like to get into more track days/auto-x!

275/35?! damn thats crazy, so the fender thing im not worried about, ill make it work, im just worried about the tire rubbing on the suspension, would +45 offset wheels work? or will I need to go more like a +33 or even lower? and do you think I'd need wheel spacers?

as for my gearing, I have a gsr tranny but plan to do a 4.9/fd and an lsd at some point. the O.D. of the hankook 245/45/16 is 24.6" the tires I currently run measure 23.35" that makes like 1.25" difference total .63" or so top and bottom is it THAT big of a difference?


Modified by N1 Andy at 8:22 AM 11/13/2007

 

A 24.6" diameter tire is murder on gearing in a torqueless wonder. The GSR 2nd gear (the important gear for autocross) is already pretty long. A 4.9 will help a lot, but getting real tires for autocross will help more and seat time will help even more then that. As to your fitment question, you MIGHT need a spacer (it'll depend on the tire construction) but you'll definitely find that the tire likes to hit the chassis and cuts your fender liner to shreds. Seat time and practice will serve you better then crazy offsets and wheel sizes. Buy yourself a set of 205/45/16 RE-01R's and get to as many events as possible.

 

thanks alot

ill look into the potenza's, I was thinking hankook rs2's though in 205/45/16, I drive my car like once a week so im not worried about tread life. As for the seat time thing, I cant agree more! thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by N1 Andy &raquo;</TD></TR><TR><TD CLASS="quote">Im not into drag racing, I want to auto-x and do some lapping days at pacific raceways next summer. Right now im a hardparker/drive the hell out of the car on the street, but would like to get into more track days/auto-x!</TD></TR></TABLE>

Since you've never autocrossed or tracked before, I recommend that you not buy any wheels or tires for doing so yet. Just drive your car in these events as it's set up now, assuming everything is in good working order. Yes, with your everyday street tires. When you start out, you won't be using anything on your car to its maximum capabilities; the most limiting factor will be "the nut behind the wheel". You will be learning a lot about car control and handling. Even though you think that you will be an amazingly fast driver, you will find out otherwise, when more experienced drivers in slower cars than yours eat you alive on the track. Don't worry, this happened to all of us when we started out. The key is to have fun and to learn to go faster. As you go faster when you gain more experience, you will be getting more out of your car. You will be learning what its weakest/slowest parts are, and then you will have a much better idea of what to do to make your car faster.

 

thanks again for all the info, im looking into some auto-x stuff, it seems pretty dead right now for the winter. everything is in good working order except my wheel bearings and valve seals, I will be fixing those issues soon. thanks again!