wheel fitment

[brettg63]

I just picked up a 1996 talon awd. I will be running it in scca solo class stx. I am limited to a 8 in wide wheel and a 245 width tire. From my research a 245-45-17 tire on a 17 x8 wheel with a 40 mm offset will clear. Is anyone else running this on their 2ga car? I am allowed to roll the fender lips but not flare them. Thanks

 

[jlaw12]

Is it lowered? A 245 on a 8 wide is to wide if I remember right from my training. If it's a 40 I don't think you'll have to roll. I have a 17x9 +30. It lowered and I didnt have to roll.

 

[dsmspick]

That tire combo with an evo rim should clear. Your issue is going to lie in how much your lowered and the rear knuckle design of the 2ga limiting your tire width. 2gb knuckles are shaped differently and have more clearance to run wider tires.

 

[estoyaqui30]

I'm running that in the form of EVO 9 wheels (17x8 +38) and Dunlop Sport Maxx 245-45/17. The car is lowered on Tein type flex. No rubbing.

 

[callmesaj]

I'm running that in the form of EVO 9 wheels (17x8 +38) and Dunlop Sport Maxx 245-45/17. The car is lowered on Tein type flex. No rubbing.

pics?

 

[estoyaqui30]

I will have to look for some pics. I currently have snow tires on the car. Unfortunately, I ran the snows all summer from last winter. I have separate summer and winter tires on separate wheels....and the only place to store them is my brothers house 2 hours away.

 

[ileagleracing]

I run my 95 AWD in STX, I've got a set of Enkei RPF1's (17x8 45 offset) and a set of Subaru BBS's (17x8 no clue as to offset). The fenders are rolled and I've run 245/40/17 Dunlops, Bridgestones & Toyos with no issues. The car is lowered an inch or so. Check out the pictures in my gallery (the purple car), the static shot is on 18x9.5 with 285/30/18 Hoosiers, not drivable in that configuration, just took the pic for kicks, but you can get an idea of the ride height. The rear action shot is on the Enkeis & the side action shot is on the BBS's.

With a 40mm offset, you're pretty close to the knuckle on the inside tire shoulder (you may rub a bit under hard cornering). A thin spacer would fix that. In addition to rolling the fenders, I've also had the upper control arms cut and welded to add camber (about .5-.75" removed).

Samuel
08 Expedition
04 S4
98 Talon
95 Talon

 

[DogWhistle]

pics?

I second this

 

[EclipticalGS]

I'll go into a bit of detail for reference.

I have 18x7.5 Konig rims with +40 offset.
They are wrapped with 255/35/18 BFG Geforce KDW 2s. (sidewalls are extremely wide over the rims obviously with the unsafe tire/wheel combo I chose)
Car is lowered 2" front, 1-3/4" rear.

The inner rim edge is about 25-26mm (1") from vertical control arm.
The inner tire edge landed 6-7mm away from vertical control arm.

The outer tire edge is BORDERLINE close to the stock fender lip at my ride height. If it wasn't for the huge radius shape corner on the KDW 2s it may have not worked. The corner of a stiffer sidewalled tire with less of a radius edge flowing into the tread patch would hit the fender promptly.

The outer rim edge is inset from the tire edge 12-13mm.

With that said, since rim offset is measured from centerline of rim to the hub, keeping the same offset and just widening the rim will not move the rim center line, or the tire centerline.
So by changing just the rim width to lets say 9" vs my 7.5". I will have gained a total 1.5" rim width. 0.75" (19.05mm) will move inward towards the vertical control arm, 0.75" (19.05mm) will move outward becoming more flush with the tire edge.

I said earlier my inner rim edge to vertical control arm was already 25-26mm, so expanding the new rim 0.75" (19.05mm) inward will still leave a gap of about ~6-7mm.

This would have little to no effect on the inner tire edge to vertical control arm distance (with my same tire) because neither the tire width or tire centerline changed. If anything it would just make my sidewalls a little more perpendicular instead of bubbled out (from putting a 255 on 7.5" rim)

With a 255/35/18 @ 2"inch drop in the front, I want to say it is the tallest tire I would ever go with for the very least amount of DD/weekend warrior suspension travel. Michigan roads blowwwwww.

The rear rims and tires have gobs of space left so no need to go into detail there.

For your reference

EDIT: Information in this post will not be exact for every 2g DSM as each have subtle differences. Lastly, I do NOT encourage placing a 255 tire on any rim below an 8.5". You will suffer greatly during cornering, and the workers at Belle Tire will tell you that they cannot do it, and then when you make them do it they will be able to one day share a story of the smallest rim they ever squeezed a 255 tire on, and how bad ass it ended up looking.

In a sum of things,
What you can take from my situation is; up to a 255 wide tire on a +40 offset 7.5-9" rim will evenly center the tire under the front wheel well. If you choose any narrower of a tire, you will gain more spacing from inner tire edge to vertical control arm, and will also gain more spacing from outer tire edge to fender lip which keeps you well away from rubbing while turning/bottoming out

 

[GRNDSM]

That tire combo with an evo rim should clear. Your issue is going to lie in how much your lowered and the rear knuckle design of the 2ga limiting your tire width. 2gb knuckles are shaped differently and have more clearance to run wider tires.

Has anyone been able to quantify this? Something like: "this gives extra 10mm or clearance".

 

[snowborder714]

Leon, here's the best data I've seen on this. It's not a perfect test in my eyes, and I still intend to redo it with the knuckles being the only variable, but just haven't gotten to it.
http://www.dsmtuners.com/forums/152189873-post18.html

 

[GRNDSM]

I think that is good enough. Other variables do not really contribute to the clearance in THAT area Looks like we get extra 5mm of extra clearance. Not a lot, but if that keeps you from using spacers, that is very valuable

When I was looking for a donnor rear end to use in my Spyder AWD conversion, went through FOUR different rear ends before I found one that worked. I ended up using '98 in my car and keept another set from '97. I think I am going to sell the spare, but I still wanted to know about my own car.

 

[snowborder714]

Looks like we get extra 5mm of extra clearance.

4.5mm based on the measurements between my brother's car and mine

 

[GRNDSM]

Well, you know how American's are taught to "round up" .

 

[snowborder714]

Just wanted to make sure you weren't accidentally looking at my calculated amount. I vaguely remember being taught to round - that usually happens at 3 decimal places or so now