S550 newbie?

[fatbillybob]

I'm an SCCA clubracer who just sold my T2 vette Z06 racecar. I just got a 2019 Mustang GT pp1 with 10speed to race in my same class.

I have not welded my rollcage into the S550 yet but it will happen in a couple of weeks. I'm doing my 1st trackday in this car on Saturday to find week spots. I suspect I will need more cooling for the 10speed. I'm taking a chance not racing a manual but I want to try something different. Ford/GM targeted the porsche pdk in their design of the 10speed. I think they hit it out of the part. So far driving around town with sport & paddles I am very impressed what this slushbox is doing. It shifts as fast as porsche pdk and acts like a manual holding gear.

For you guys who track the S550 I'd like to hear what mods you have done for increased reliability? What race brake pads and model are you using? Are you guys using lower grip pads in the rear like carbotech XP20 front and XP16 in rear?

Who is making floating two piece front brake rotors that racers recommend?

Who makes a functional modest hood vent to bleed off some heat? Has the PP1 larger radiator good enough on track?

What are you guys doing about brake ducts? I must have those.

Anyone making light 19x11 wheels? Has anyone tried to fit an 18" wheel over the big brakes? It does not look like an 18" will fit but I have not taken the wheels off yet.

Is there no way to adjust chassis rake without going to coilovers?

Thanks !

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[strengthrehab]

I'm an SCCA clubracer who just sold my T2 vette Z06 racecar. I just got a 2019 Mustang GT pp1 with 10speed to race in my same class.

I have not welded my rollcage into the S550 yet but it will happen in a couple of weeks. I'm doing my 1st trackday in this car on Saturday to find week spots. I suspect I will need more cooling for the 10speed. I'm taking a chance not racing a manual but I want to try something different. Ford/GM targeted the porsche pdk in their design of the 10speed. I think they hit it out of the part. So far driving around town with sport & paddles I am very impressed what this slushbox is doing. It shifts as fast as porsche pdk and acts like a manual holding gear.

For you guys who track the S550 I'd like to hear what mods you have done for increased reliability? What race brake pads and model are you using? Are you guys using lower grip pads in the rear like carbotech XP20 front and XP16 in rear?

Who is making floating two piece front brake rotors that racers recommend?

Who makes a functional modest hood vent to bleed off some heat? Has the PP1 larger radiator good enough on track?

What are you guys doing about brake ducts? I must have those.

Anyone making light 19x11 wheels? Has anyone tried to fit an 18" wheel over the big brakes? It does not look like an 18" will fit but I have not taken the wheels off yet.

Is there no way to adjust chassis rake without going to coilovers?

Thanks !

1. Yes, is usually recommended to use less aggressive brake pad in the rear. For NT01's, I use G-Loc R16/R12 combo, but that may be overkill for my setup. 12/10 or 12/8 would probably suffice
2. TrackSpec hood vents
3. There are a few folks using brake ducts for MY 18/19 cars. Mine is a 16 so my front ducting is different
4. 19x11 wheels--Apex, SVE, Forgestar, etc. I'd recommend a square setup so the wheels/tires can be rotated easily. My 19x11's are SVE GT7 wheels with +50 offset. I use a 25mm spacer and extended lugs on the front.
5. My 18x11's (square setup again) are Apex EC7's (fit over the 6 piston PP brakes)
6. Try the Mike Maier, Inc rear ride height adjusters/spring setup? I have that too.

 

[shogun32]

Is there no way to adjust chassis rake without going to coilovers?

Steeda and Ohlins (among others) supply rear preload adjustable collars. You probably should talk to Steeda at some length and do a bit more reading since all your questions have been extensively discussed.

 

[fatbillybob]

Thanks for your opinion. While this is all repeat for the vets I appreciate your instantly pointing me in the right direction especially about the 18x11 Apex wheels. You saved me lots of time so thanks for that!

 

[SteveW]

Isn't the Z06 in T1?

 

[Scurd Racing]

I think @italian_stang on instagram(cant remember his M6G username) would be able to answer all your questions on this as he has a 2018 10 speed as well and that guy is fast as hell!

 

[PoppinJ]

1. NT01s I use power stops track day. They are a good intermediate pad, good street Manors for daily driving (dust is corrosive) but I've outgrown them and am moving on to HAWK DCT60 front 30 rear.
2. TrackSpec hood vents, I'm also interested in Cervisi(spelling) new gt500 hood.
3. Brake ducts for 18/19 are self made/hobbled together. Not really an easy comprehensive solution. My PP1 stuff has worked for me this far.
4. I use a 25mm spacer (op mustang makes a really light weight nice one) ARP extended lugs. 18x11 Apex EC7's. 305 squared with -2.5, 315 squared with -3.0 camber. I run -3.0 with Steeda camber plates.

For 2 piece rotors I use Steedas. They have pretty frequent sales or you can ask for a form discount coupon. Girodisk is another option a lot of people use.

 

[Grintch]

Steeda is campaigning a T1 car in SEDiv. So they are a good tech source for a road race S550, built to SCCA rules.

Some of the other handling related vendors don't seem to understand rules, as they run the Optima Series where anything goes, except for tire compound and weight limitations.

Recent testing by Vorslag, indicates that up sized PP style air deflectors actually work better than traditional brake ducts. Their S550 development blog is worth a read, though that car is setup for NASA TT.

 

[Grintch]

Yes, apparently it is a little known secret. A car prepared for one class will be different from one prepared for another class. Especially when the classes are as different as SCCA T1 and NASA TT3.

Just see the complaining when they unintentionally bumped themselves up a class to TT2, and now seem stuck without a good path to a fully prepared TT2 or back to a fully prepared TT3. I wonder if this isn't what is driving them to get a new car and start over. But note the original car was built as a dual purpose car, which is inherently compromised.

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