Many thanks to Wai for his well informed advice on this topic already. I'd thought I'd see what others here thought as well.

I would like to try a staggered tire set-up next year with 225s in front and 205s in rear. I have a good source for some nice wheels that I can get in many widths and offsets. If you could get the front wheels (assume 15x7 for the rear) in either 7", 7.5" or 8" what would be your choice and why? What offset would you choose?

 

15x9, +12 offset front, 15x7+38 in the back.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rodney &raquo;</TD></TR><TR><TD CLASS="quote">15x9, +12 offset front </TD></TR></TABLE>

LOL - ok, that would be good - but not an option.

 

Keep it simple. 15x7. I used to run staggered 225/50 and 205/50 on the stock 15x6 wheels.

Did you have a particular tire manufacturer in mind? Rim with recommendations might make a difference to you, though I've seen them ignored before.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">Keep it simple. 15x7. I used to run staggered 225/50 and 205/50 on the stock 15x6 wheels.

Did you have a particular tire manufacturer in mind? Rim with recommendations might make a difference to you, though I've seen them ignored before.</TD></TR></TABLE>

15x7 is the way I am leaning for sure - so I think you are right on. This will be with Toyos for now, but that may change in the future...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flux &raquo;</TD></TR><TR><TD CLASS="quote">

15x7 is the way I am leaning for sure - so I think you are right on. This will be with Toyos for now, but that may change in the future...</TD></TR></TABLE>



I'm not so sure you want 225/50's... do you? I used them, the gear
http://www.toyo.com/tires/tire_specsheet.cfm?id=1
Toyo rates their 225/50R15 at 6" to 8" recommended width. The rim they took measurements on is a 15x7.

I guess it's not a big deal...

 

Is it because of the gearing why you wouldn't recommend 225/50s? Is that over the 225/45s? I would probably run the 45s as well, but the resulting gearing is highly dependant on the track. 50s might actually work out better.

I agree that 15x7 is the way to go all around. You can go higher, and I really do believe the wider the better. I just don't think that it's necessarily worth it. I've seen people knotch the trailing arm to fit wider wheels in the rear, but the front should be safe. I also know someone who runs 15x8s on an EG, but his offsets are wack, and I think he's running a 225/45. I'm very surprised they fit, and frankly if I hadn't seen it I wouldn't have believed it.

 

15x7 is fine with a Toyo or a Hoosier 225. Be aware that you'll most likely need at least a 5mm spacer in the rear as they tend to rub.

Good luck

Jason-
who's still searching for more "lower cost" 15x7 wheels in our lug pattern

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flux &raquo;</TD></TR><TR><TD CLASS="quote">LOL - ok, that would be good - but not an option. </TD></TR></TABLE>

why not? if i still had my dc2's i would be running that same setup. i use that on my eg now. just flare the front.....

 

225/45/15's worked fine for me on 15x7's with a +38 offset, without any rubbing.

 

Here are my experiences with 16x8's 50mm offset - 225's up front, 215's in the rear. You would have similar one's with 15's

Recommend 7.5 or 8.0 inch up front

50mm is thin up front (tire to spindle), not even sure 15's would work as the spindle moves away from the wheel providing a pinkie's width of clearance at most, would definitely be tighter on a 15. Outer fender clearance is fine and has additional room for maybe 10-20mm tire. That's at -2.7 degrees camber, with more camber you have greater outer fender clearance.

Recommend 7.0 or 7.5 inch in rear
Rears require less offset. 38-42 is probably the right range. Even with a 8mm spacer I occasionally get some trailing arm rubbing with the 215's and with about -1.0 degrees of camber it's really tight on the fenders, even rolled. Definitely less room to work with back there. Again, more camber in the rear allows you to run less offset (providing clearance to the trailing arm) while still being able to have adequate outer fender clearance.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NNY &raquo;</TD></TR><TR><TD CLASS="quote">225/45/15's worked fine for me on 15x7's with a +38 offset, without any rubbing. </TD></TR></TABLE>

Toyo RA1, yes, probably. Hoosiers will probably require a spaceer to keep them off the LCA when it moves, as Jason said above.

If this puts the tyre too close to the fender in the rear, then you can roll the rubber covered inside lip up against the fender. You have to be careful doing this to avoid "flaring" the fender, which might be illegal in whatever group you are running.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by typer_801 &raquo;</TD></TR><TR><TD CLASS="quote">Here are my experiences with 16x8's 50mm offset - 225's up front, 215's in the rear. You would have similar one's with 15's
...That's at -2.7 degrees camber, with more camber you have greater outer fender clearance.
...with about -1.0 degrees of camber it's really tight on the fenders, even rolled. </TD></TR></TABLE>

Would you mind telling us exactly the tyre sizes you're using, and what brand?

 

15x7 with a +35 mm offset (however you get there... spacers, etc) will fit, but be ready to roll the front and rear fenders pretty good.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by George Knighton &raquo;</TD></TR><TR><TD CLASS="quote">Would you mind telling us exactly the tyre sizes you're using, and what brand?</TD></TR></TABLE>

I was thinking the same thing.

Also, is this for track/autocross use, or just for the street?

 

who gives a **** about the fenders?

roll at will!!!

15x8 +27 and if you don't get them, at least tell me where the hookup is at so I can get a set...

 

15x7.5 front, 15x6.5 rear. 205/50 felt 'sloppy' on 15x6 rims, while on 6.5" and 7" width.... felt much better. Or, I guess 15x7 all the way around to be easier about it but i'd still say a wider wheel in front can only help, not hurt....

i'd recommend 225/45/15 over 225/50/15 if your tyre of choice comes in that size. One, you'll have less rubbing issues on a shorter tires, two, the diameter is smaller (225/45) than stock size, so slightly shorter gears/higher fd, while 225/50 is larger and will just make your gears taller/lower fd. One thing I'd like is the R to have a slightly higher fd, maybe the 4.785 would be nice. At least tires (225/45 in this case) can aid in this....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N &raquo;</TD></TR><TR><TD CLASS="quote">15x7.5 front, 15x6.5 rear. 205/50 felt 'sloppy' on 15x6 rims, while on 6.5" and 7" width.... felt much better. Or, I guess 15x7 all the way around to be easier about it but i'd still say a wider wheel in front can only help, not hurt....</TD></TR></TABLE>

Please mention make/model of tire when giving such scientific classifications as "sloppy".


It seems to be the consensus that 205/50 Azenis on 15x6 is sloppy, but I think (and many others including spec miatas etc.) that 205/50 Toyo RA1 on 15x6 is perfectly acceptable.

-Chris

 

I think these wheels would be your best bet

https://honda-tech.com/zerothread?id=1413666

Honestly though, with a 225 I'd want nothing less than a 7.5" rim.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">Please mention make/model of tire when giving such scientific classifications as "sloppy".


It seems to be the consensus that 205/50 Azenis on 15x6 is sloppy, but I think (and many others including spec miatas etc.) that 205/50 Toyo RA1 on 15x6 is perfectly acceptable.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rodney &raquo;</TD></TR><TR><TD CLASS="quote">just flare the front..... </TD></TR></TABLE>

Just flare the front he says...


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">I think these wheels would be your best bet </TD></TR></TABLE>

Todd, dammit, why couldn't those be 4-lug?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">Honestly though, with a 225 I'd want nothing less than a 7.5" rim.</TD></TR></TABLE>

Why is that?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Back in Black &raquo;</TD></TR><TR><TD CLASS="quote">

Why is that?</TD></TR></TABLE>

Better fit for the tire, better contact patch, improved turn-in, etc.

In SoloII there is a noticeable difference from a 225/45/15 on a 7" to a 8". There is no reason why this would not hold true for roadracing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">There is no reason why this would not hold true for roadracing.</TD></TR></TABLE>

Sure there is, IT/HC class rules for most hondas dictate a 7" wheel width maximum

 

Hrm...

You've got me thinking now. Before, I could not run greater than a 7" width due to class rules.

Now, all bets are off. What wheel/tire combo were you running and at what offset?