I did a search but if there is anything out there, I was using the incorrect terminology. I'd like to knoiw if there would be rubbing issues with the above mentioned Hoosiers, specifically on the trailing arm of a DC2 running 7" wide wheels with a +38 offset.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TPB &raquo;</TD></TR><TR><TD CLASS="quote">...Hoosiers, specifically on the trailing arm of a DC2 running 7" wide wheels with a +38 offset.</TD></TR></TABLE>

On my car I can run RA1 but not Hoosiers. Car slightly lowered with 16K springs.

 

Yes you may have issues with rubbing. On our three HC Integras the 225's rubbed even with spacers. We had to heat up the trailing arm and bang it out with a hammer to clear some room. It's only the Hoosiers that rubbed.

Regards,

Jon

 

The 225 Hoosier is wider than other 225s. And the 225/45/15 is super wide.

Its a tough fit, but you can get it on there. I suggest a good body shop roll job on the rear fenders. You get about an extra 1/4 inch over what you get with a good old baseball bat.

 

Scott,

The main issue with the 225/45's is inside tire rubbing of the suspension arm. I think it will clear the upper fender unless it's lowered drasitcally.

Jon

 

I'm not really worried about the body work rubbing, more rubbing on suspension arms.

FLATOUTRACING, what rim width were you running and with the spacer, what offset did you have?

 

I had 225/45x15" Hoosier A3S03 on the front and 205/50x15" on the rear with 15x7" Kosei K1s 45mm offset and 3mm spacers on the front. And no rubbing. THis was on a 00 Civic Si.

 

Originally the guys who raced the cars in Grand Am ran custom 8 inch Volks and 7.5 inch Volks and 7 inch Volks. For HC and ITA we have to run 7 inch Volks. I believe offset is 38 on our cars. We run 5 and 10 mm spacers to clear the trailing arm. When Nonnemaker ran the cars in GA Cup they had to use 205 tires with the 8's to clear the arm. I think if you run 10 mm spacers with 38 offset you will still have rubbing unless you clear some metal off the suspension arm.

Jon

 

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

The main issue with the 225/45's is inside tire rubbing of the suspension arm. I think it will clear the upper fender unless it's lowered drasitcally.

Jon
</TD></TR></TABLE>

If you get more fender clearance you can run more offset or a fatter spacer.
I've seen a couple of people manage to get 225/45/15 Hoosiers on ITA CRXs and this is how they've done it.
If you don't do this, you CAN'T get a 225/45/15 Hoosier on a CRX.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FLATOUTRACING &raquo;</TD></TR><TR><TD CLASS="quote"> you will still have rubbing unless you clear some metal off the suspension arm.
</TD></TR></TABLE>

I've done that before and this can seriously weaken the TA. A few years ago in Solo 1 I had an off with a notched TA and the arm bent quite a bit. I really can't afford to go through more TA's.

Since it looks like I might have difficulties running 225 Hoosiers all around, what tire would you suggest running for the dry? Would a Hoosier 205/15 be worthwhile running in all four corners? Perhaps running 225's in the front and 205's in the rear?

I'm not contemplating Kumhos anymore since I've had nothing but bad luck with them. I've tried to get my hands on some Goodyear GS-CS tires but they have been on back order for months with no sign of coming anytime soon. I'm at a loss since my Toyos aren't competitive in this series (no spec tire for the sprints), unless of course it is a wet race.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TPB &raquo;</TD></TR><TR><TD CLASS="quote">Would a Hoosier 205/15 be worthwhile running in all four corners? Perhaps running 225's in the front and 205's in the rear?.</TD></TR></TABLE>

I'd like to hear experienced people answer that, too.

Give the choice, would most of us prefer RA1 225-45-15 or Hoosier 205-50-15?

 

George, I believe that if the goal is to be fastest (as opposed to cheapest...) most people will go with the Hoosier.

I believe that the Hoosier 205 is not much (if any) narrower than the Toyo 225 (the Hoosier 225 is a full inch wider than the toyo 225 for reference) - and it is stickier. Like, at least 1 second per Summit Point lap stickier.

If you want long lasting and cheap, Toyo. If you want fastest, Hoosier. As it's always been in our kind of production-based car racing it seems.

 

On my EK hatch I've got 15x7, 4x100, 42mm offset with 225-45-15 hoosiers. I run a 5mm spacer in the rear and had to cut out the fender lip. I still rub the trailing arm when hard cornering but it hasn't been a problem so far..

 

When mounted on a 7" wide wheel the 205 Hoosier indeed has pretty much the same tread width as a 225 Toyo.
As mentioned, the 225 Hoosier is just plain huge.

 

I run Hoosier 225/45/15 all around on my ITR. Fenders are rolled and front fender liner removed. I use Team Dynamics 15x7 wheels with 45 mm offset. I have no rubbing issues on the front. On the rear, I have no rubbing issues on the fender, and just slight rubbing on the trailing arm under heavy loading. I use H&R 5 mm spacers plus an additional 3 mm spacer under the H&R ones for an effective offset of 45-5-3 or 37 mm. I think there would be essentially no rubbing if I added another 2 mm of spacers. Car is lowered a little over 1.2" on AD coil-overs.

If you want another kind of fast tire, Michelin Pilot Sport Cups are the trick. Almost as fast as Hoosiers and last a ton longer, 225/50/15, no rubbing with my wheels and no spacers. I run both and have data logged the lap times once camber and height was optimized for each and there is not much in favor of the Hoosier, 1/2 second at best on a 100 second lap.

 

Stock wheels even with 5 mm spacers rub on trailing arms. Stock offset is 50mm - 5mm = 45mm real offset. The wheel is 6" x 25.4 mm/inch or 152.4 mm wide. Half of that is 76.2mm add to 45mm gives you 121.2mm from the hub surface to the inside rim.

For your 7" rims with 38mm offset - 7x25.4 = 177.8 / 2 = 88.9 + 38 = 126.9mm. So your rims should put the tire 5mm closer to the trailing arm.

It will definitely rub.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00R101 &raquo;</TD></TR><TR><TD CLASS="quote">Stock wheels even with 5 mm spacers rub on trailing arms. </TD></TR></TABLE>

I don't think stock wheels even without spacers rub on anything!

 

I run 205/50/15 hoosiers on my R and im very pleased with them. The 225/45 in hoosiers are pretty damn wide though.

 

Just got back from Sebring with the 205 hoosiers... When I was swappin back to street tires the other day I noticed the hoosiers rubbed a little bit on the control-arm. It wasn't a big deal I didn't even notice it when I was driving. It must have been only rubbing in turn 1 turn 17

 

Update:

Well I can now unequivocally say that these tires WILL fit on an ITR without rubbing issues and most notably the trailing arms. I'll qualify this by saying I had the tires mounted on Kosei 15x7 +38 offset. Based on the finger between the tire/TA test, there is about 5mm of space.