275/40R18 on the front?

jwgroovin · Oct 4, 2005

My Goodyear Eagle F1 GS-D3s have arrived (4 x 275/40R18s) before my 18" AFS Mach 1 wheels. After placing one of the tires next to the stock front tire, I'm getting nervous about fitment. Anyone stuck this tire size up front? Any problems? There's plenty of room in the back but the front just looks a bit cramped...

John

Redsnake2 · Oct 4, 2005

with tires that wide in the front you will have tracking problems. Your car will pull to every rut in the road. Then you may have turn clearance problems..

265 is the widest i have seen. But i know 245 is the standard wide width for the fronts

Mickey21 · Oct 4, 2005

Not an 05 (97 actually), but I have 275's in the front 315's in the back. I love how the car sits and rides. I dont mind the very occasional pull, the tires wear well and the car is pretty stable going straight... No issues really. I dont know how mugh tighter the front well of the 05's are. Just my experience so far. Let me know how they work out. I love the wide tire look...

rickman · Oct 4, 2005

no problems

my 275/40 (17s) work great!

jwgroovin · Oct 4, 2005

rickman said:
my 275/40 (17s) work great!

That is GOOD news.

jwgroovin · Oct 4, 2005

rickman said:
my 275/40 (17s) work great!

any other pics?

RandyB · Oct 4, 2005

I have 275/35-19 BFG KDW tires in the front of my '06 on a 9" rim. Works fine, and doesn't tramline much at all.

View attachment 502085
View attachment 502087

RandyB · Oct 4, 2005

rickman said:
my 275/40 (17s) work great!

Wow, those are short. SN95 rubber right there... Any speedo problems?

Mickey21 · Oct 4, 2005

RandyB said:
I have 275/35-19 BFG KDW tires in the front of my '06 on a 9" rim. Works fine, and doesn't tramline much at all.

View attachment 502057
View attachment 502059

Very nice looking wheels and tires. Really my favorite looking stance on these cars. Just beautiful...

svtash · Oct 4, 2005

http://www.miata.net/garage/tirecalc.html

Heres a site that you can play around with to see what tire size differences are like. It will also tee you how far off your speedo will be with an old vs new tires.

Big-Foot · Oct 4, 2005

RandyB said:
I have 275/35-19 BFG KDW tires in the front of my '06 on a 9" rim. Works fine, and doesn't tramline much at all.

Gorgeous wheels...

Do you have the specs for them front and rear - Width and offset?

How about rubbing on the front when turning and going up a driveway (bump) - any issues?

Thanks!

RandyB · Oct 4, 2005

Big-Foot said:
Gorgeous wheels...

Do you have the specs for them front and rear - Width and offset?

How about rubbing on the front when turning and going up a driveway (bump) - any issues?

Thanks!

Thanks! No issues at all, under any conditions so far.

ROH 'Drift R' wheels:

Front - 19x9 with 275/35-19 and 35mm offset
Rear - 19x10 with 295/35-19 and 45mm offset

Close-up:

View attachment 502003

gp001 · Oct 4, 2005

I've got the same setup as Randy and also have no problems

jwgroovin · Oct 4, 2005

RandyB said:
Thanks! No issues at all, under any conditions so far.

ROH 'Drift R' wheels:

Front - 19x9 with 275/35-19 and 35mm offset
Rear - 19x10 with 295/35-19 and 45mm offset

QUOTE]

Hmmm, my fronts have a 40mm offset. That may be a problem--we'll see.

RandyB · Oct 5, 2005

gp001 said:
I've got the same setup as Randy and also have no problems

No, I have the same setup as you - I saw your wheels long before I got my car. Your car, along with that yellow and black one and srichards car put me over the edge. Looks great!

Big-Foot · Oct 5, 2005

I'm taking all this in to see how relevent the data would be to a wheel combination I would like to use.

I've got a set of chrome 17x9 SVT Mach-I wheels that I have been using on my Cobra and thinking about trying them on the Mustang. They are a 26mm offset (SN95) and have 275-40's on them now. Good looking wheel and I hope they fit this Mustang as they are too pretty for my racecar.
To my line of thinking - they would stick out no further than the 10" wide wheel would on the rear and maybe just a little more (1/2") on the front. For that combination I may have to switch to 255's on the front..

Thoughts?

RandyB · Oct 5, 2005

Big-Foot said:
I'm taking all this in to see how relevent the data would be to a wheel combination I would like to use.

I've got a set of chrome 17x9 SVT Mach-I wheels that I have been using on my Cobra and thinking about trying them on the Mustang. They are a 26mm offset (SN95) and have 275-40's on them now. Good looking wheel and I hope they fit this Mustang as they are too pretty for my racecar.
To my line of thinking - they would stick out no further than the 10" wide wheel would on the rear and maybe just a little more (1/2") on the front. For that combination I may have to switch to 255's on the front..

Thoughts?

275/40-17 is about 1.5" shorter than the '05-'06 factory rolling stock. There is already one guy running them with no problems, but I chose to stick closer to the new diameter for more road cushion, so to speak. I would think your offset would be close enough to work, and it has probably been done already somewhere.

Big-Foot · Oct 5, 2005

Hmmm... Something to think about. When you mentioned that the 275/40 was 1.5" shorter than the 235/55 - that made me realize that the taller 235 tire had a heckuva time filling the rear wheel wells the way it is without lowering the car (something I really don't want to do)..

I need to come up with another tire strategy.

Thanks for the feedback!

275/40R18 on the front?

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