171 mph sweet. Makes you wonder if the TracKey will remove the speed limiter? Legal probably wont allow it.

 

Nice! Got the goose bumps watching that!!!
I noticed the stock mufflers,at the rear. Did they have the factory side dumps,opened up completely?
The best sounding new Mustang I ever heard!!

 

yes those are 302R wheels, but those DO NOT come with the car when you buy it. the car comes with Black Laguna wheels with steet tires.

What you see in the video is the World Challenge wheel/tire combo (sold seperatly) see below for details

For SCCA World Challnege (whats shown in the video):
BBS 18x10 Boss 302R1 wheels with 305 Pirelli Slicks on aa 4 corners (spec tire)

For NASA AI (American Iron):

Toyo RA1 (spec tire for the class)
You could use the Laguna wheels (heavy) but the 302R wheel is illeagal for AI (9.5" is the limit in AI)
We use Forgeline wheels for AI

 

What tire do you use on the 9.5s for AI, the 275/35/18 RA1? I need to order track tires for my Enkei 18 x 9.5s.

 

the width and diameter isnt spec (there is a maximum on both, same thing with the world challenge slick)

 

Sorry a little slow on the uptake this morning

Looks like 18" RA1s are pretty much out of stock anyway.

 

The only reason we run RA1's on anything is because the rule book says we have. We would never run them or probably any other R compund (they are not awesome even as an R compound, there are way worse R comp's though).

 

So any tire suggestions for us Boss HPDE guys?

 

I don’t like R comps

The level of grip they provide I don’t feel justifies their price.
If your gonna spend the $ go the extra small step and get real tires.

It should be said that if your new to open tracking start on street tires. R comps and slicks are not beginner friendly, they give you little to no warning at the limit the way a street tire does. You can get into trouble with these kinds of tires and not know it until its too late if you don’t know what your doing.

I recommend 275/35-18 on all 4 corners, its a common size so they are lower priced.
It’s plenty of tire.
Staggering tire size front to rear can easily lead to handling issues if you dont have adjustable suspension and good amount of setup knowledge
"Square" cars are great
its hip to be a square (sorry I know thats horribly corny but it's been a really stressful week)


Good:
BFGoodrich G-force R1
Good grip, great durability

Better:

Hoosier R6
GREAT grip, ok-good durability (proper high cycling at break in make a big impact on tire life)
Can be found used, be picky!!!!!! Check for excessive shoulder wear.

Best:

Find a Grand Am Continental Tire team that sells used take off slicks.
Good grip, EXCELLENT durability (provided you bought a set that isn’t near death, ask!)
They are SUPER cheap.
We have sold all that we had (I am guilty of buying 5 of the sets myself, these are what I use for HPDE's and private track rentals)

 

+1 to what Shaun said. He helped set me up with my track wheels & tires last year, and made the situation as painless as possible.

 

Thanks. Yep, know all about R-comps and when I'm at the edge of adhesion

I've run the R6s and they are great, but they burn up fast. Of course the Boss is 300 lbs lighter on the nose than my GT500 so might not be as bad, but even my Z06 buddies go through them quick. I've bought them heat cycled from Tire Rack, so not sure if their process is good or not.

I was hoping you could get us some Contis Well if that changes PM me and me and my buddy with his 98 Cobra will buy them!

As far as blowing off the rears, even with the ridiculous torque of a modded GT500, I'd get 8 track days on a set of rear R888s and two days on the fronts, so throttle modulation's not the issue Being a 4k lb understeering nose heavy pig is though.

 

Ya i knew you wouldnt be damaging rears, this isnt your first rodeo

I was trying to address that post to the board as a whole. That where alot of the comments that you already know are coming from

I also edited that post pretty quickly, when i re-read it I kinda sounded like a *****

 

Thanks for the recommendations. I might try the BFGs unless you come up with some Continental slicks

 

I asked mwilson that question over on BMO. He said "The Boss 302S uses stock GT500 mufflers, cat delete and has no side exhaust." You can read his response here.

 

I just bought a set of BFG's, but with my schedule this spring (daughter graduating.....) I may not get to try them till June at the Mid-America Shelby Meet

So you may get to tell me how they work...........

 

I'm between kids graduating and get this spring off. You could just ship them up here and I'll let you know how they work. I promise to send them back in time for your Meet.

 

Does anyone have a moist towelette, I do believe I have soiled myself.

 

Pulling the cats couldn't make the exhaust THAT loud. That was NASCAR loud.

 

You would be shocked!

I ran my GT500 without mufflers (just cat's) for 3 years and no one really seemed bothered.

Last year I put mufflers back on but installed an off-road x-pipe. Now the neighbors think I'm running open headers