S550 2019 Magnetic GT350 Version 2.0 Build Thread Profile - S550 Mustangs

[Tonymustang302]

Just done….. pirelli 305/680/18 DH’s on 18x11 apex forged with 31mm spacer up front.
bank account is officially empty, credit card maxed out


@Ludachris any of these worthy of calender?/

 

[biggsy]

Amazing man. You really show out for us magnetic cars.
So do you not have to get AP rear brakes? Or do you adjust the brake bias a certain way(if such thing is relevant in this case)?

 

[Egparson202]

Amazing man. You really show out for us magnetic cars.
So do you not have to get AP rear brakes? Or do you adjust the brake bias a certain way(if such thing is relevant in this case)?

As per AP Racing, the GT350 Kit is bias matched to the factory rear brakes with no changes. I was unsure but it has turned out to be true.

 

[dragoon]

Just done….. pirelli 305/680/18 DH’s on 18x11 apex forged with 31mm spacer up front.
bank account is officially empty, credit card maxed out


@Ludachris any of these worthy of calender?/

sitting still = gorgeous
in motion at the track = marvelous

 

[Tonymustang302]

As per AP Racing, the GT350 Kit is bias matched to the factory rear brakes with no changes. I was unsure but it has turned out to be true.

Man the amount of keyboard warriors freaking out about stock rear brakes but i matched the same cobalt xr1 front.

the real racers, such as this forum, are supportive as usual lol

 

[Egparson202]

Man the amount of keyboard warriors freaking out about stock rear brakes but i matched the same cobalt xr1 front.

the real racers, such as this forum, are supportive as usual lol

Right. TBH the factory Shelby brakes are outstanding in their own right. You and I made the switch to take out unsprung and rotational weight (lighter calipers/rotors, smaller/lighter wheels/tires). The sweetener is the availability of take-off slicks with the move to 18” wheels. Bigger ain’t always better.

 

[Tonymustang302]

Right. TBH the factory Shelby brakes are outstanding in their own right. You and I made the switch to take out unsprung and rotational weight (lighter calipers/rotors, smaller/lighter wheels/tires). The sweetener is the availability of take-off slicks with the move to 18” wheels. Bigger ain’t always better.

i did it more for the 18’s bcuz 2 sets of 305/680/18 DH’S were $1200. One yeae]r and the brakes paid for themselves in tire savings .

 

[Ewheels]

i did it more for the 18’s bcuz 2 sets of 305/680/18 DH’S were $1200. One yeae]r and the brakes paid for themselves in tire savings .

$600 a set for take-off slicks??
What's the expected tire life for a set of those?

 

[honeybadger]

$600 a set for take-off slicks??
What's the expected tire life for a set of those?

I regularly get 3-4 HPDE days out of them - they're fastest the first day, but still plenty of fun on days 2-4

 

[Egparson202]

I regularly get 3-4 HPDE days out of them - they're fastest the first day, but still plenty of fun on days 2-4

Do you find that they wear out or heat cycle out?

 

[Vettel-ish]

That is one sexy combo my friend

When is this set up getting tested?

 

[Ewheels]

I regularly get 3-4 HPDE days out of them - they're fastest the first day, but still plenty of fun on days 2-4

Wow, that's really good $ per day. Looks like 18" wheels just jumped to the top of my wish list. I'm sure they're still faster than 200tw even on day 4.

 

[honeybadger]

Do you find that they wear out or heat cycle out?

Depends on the specific tire, your setup, and how hard you run them. I've worn the big 315/705/19s out in one afternoon - too hot and not enough camber.

These 305/690/19s were on day 4 when I set my all-time PB at COTA (this is pre-tear down of my current project). A fresh set would be a good second or so faster according my AIM data - but as you can see, they were dong fine.

The trick is to find the hard compound and really dial in the right amount of toe/camber and make sure you're not overdriving them. Slicks are a lot more sensitive to setup than 100-200 TW tires, IME

Wow, that's really good $ per day. Looks like 18" wheels just jumped to the top of my wish list. I'm sure they're still faster than 200tw even on day 4.

Oh yeah. IME at COTA, a fresh take off is about 3 seconds a lap faster than a sticker set of Goodyear 3Rs and even very worn out - they're still a second or so faster. See the video above. You can't get much closer to end of life than that. If it was a hot day - they would have been toast. But fortunately, this was a nice 65 degree January day

 

[Tonymustang302]

That is one sexy combo my friend

When is this set up getting tested?

Oct 4th with you

 

[dragoon]

Oct 4th with you

So what part of the paddock do I need to be to see this beast ?

 

[Tonymustang302]

From oct 4th RA event, best was a 2:27.9 with a ton of traffic. Car had high teens in it. Next year will have to go back a bunch. finally figured out how to get video from aim to overlay but the se card doesnt work with my laptop I had so much fun, car really showed how great the setup was with the dh’s. That was the missing link and now i have great confidence in the cars braking. I had URW there for trackside support and i never knew how much data the aim really had. Meet dragoon and mrbd. Andy drove his fusion on track…..



Below is steve saleen behind me driving his s1…..i caught up and passed him every lap i was out with him



next event is RA this saturday if it doesnt rain, then gingerman oct 22nd, then tons of south trying to get into 1:25’s

 

[dragoon]

@Tonymustang302
Here’s another one I saw - dat ass

 

[Tonymustang302]

Over winter cars going in for the fp350s abs module and titanium exhaust, lexan rear and 1/4 windows then try to take more weight off. Trying to figure out what NASA class this car will be in.

 

[MrBD1348]

How much weight savings will come from the Lexan? Your car is already so light!

 

[Vettel-ish]

ing to figure out what NASA class this car will be in.

Over winter cars going in for the fp350s abs module and titanium exhaust, lexan rear and 1/4 windows then try to take more weight off. Trying to figure out what NASA class this car will be in.

If you want to run with me American Iron Extreme is the class I am shooting for.