Dedicated ax/track brakes: stagger compound F:R? front swaybar rates?

[Exzact]

Couple of questions for primary ax and track folk. Thanks in advance for any helpful replies.

Are you guys using a different (less aggressive) compound in the rear? I'm about 75/25 ax:track and I'm used to running staggered carbotech 10/8 pads on previous tracked vehicles. Is this a thing for the A90 or should I run the same compound F:R?
While I understand the manual calls for 0w20, I feel like 20weight isn't going to be the best choice on a warmer track day. I live in the midsouth, summer track days air temp is typically around 90. I usually run motul fluids and thinking of stepping this up to a 5w40.

Anyone prefer one front sway bar to another? (can only run one bar in classing, the factory springs have to stay in place) -- I'm currently looking to go with AFE, I appreciate adjustability and that they publish the actual spring rates.

Again, thanks for any replies. I've spent hours perusing this board before I signed up, it is possible that I happened to miss a thread reply that covered any of what I've asked above.

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[noogie]

Edit: Just saw that you're planning to run in B Street.

Your autox setup is probably going to be different than your track setup.

For autox, most seem to run the stiffest front bar, RE71RS/A052. If you're feeling fancy, you can get MCS Street legal shocks, but you're going to need to find someone to build you a legal perch. I believe there's one guy that's building them in B Street.

 

[bushido]

@razorlab

 

[razorlab]

I've run both the same compound F/R and staggered like I did on cars before the Supra. I prefer the same compound F/R on the Supra. Just my own experience.

5w40 for tracked Supras.

Sway bars you will get 1,000 different opinions.

 

[Rensuhlo]

So we've decided on 5w-40. But whats the best brand?

Should I be using an orange/red oil filter seal or the OEM black? Will this void my warranty?

 

[ABQautoxer]

For B Street limitations, biggest front bar you can get. Some have had Guy Ankeny reinforce off the shelf bars like the AFE and Eibach to even stiffer. Brake pads YMMV.

 

[Exzact]

So we've decided on 5w-40. But whats the best brand?

Should I be using an orange/red oil filter seal or the OEM black? Will this void my warranty?

I'm not asking for suggestions on what brand of oil, filters, brake pads or any warranty info.

 

[Exzact]

Edit: Just saw that you're planning to run in B Street.

Your autox setup is probably going to be different than your track setup.

For autox, most seem to run the stiffest front bar, RE71RS/A052. If you're feeling fancy, you can get MCS Street legal shocks, but you're going to need to find someone to build you a legal perch. I believe there's one guy that's building them in B Street.

I've been ax'ing for several years, I'm the solo chair for the ky region. I ran the 71's last year on cams c5z that I sold to move into the Supra and I dont see any reason to move compounds at the current. Struts aren't really in the immediate plan. While planning on street at the current, there's a ton of drivers in XA locally that has me considering just throwing on the front bar, some hats and square set to just go out and have fun with. Even with this, I have to adhere to the TT sport ruleset and all of those would be fine.

 

[razorlab]

considering just throwing on the front bar, some hats and square set to just go out and have fun with. Even with this, I have to adhere to the TT sport ruleset and all of those would be fine.

I think you will find the Supra mighty capable with just those mods.

 

[Rensuhlo]

I'm not asking for suggestions on what brand of oil, filters, brake pads or any warranty info.

easy killer. I’m a champion.

 

[ABQautoxer]

I've been ax'ing for several years, I'm the solo chair for the ky region. I ran the 71's last year on cams c5z that I sold to move into the Supra and I dont see any reason to move compounds at the current. Struts aren't really in the immediate plan. While planning on street at the current, there's a ton of drivers in XA locally that has me considering just throwing on the front bar, some hats and square set to just go out and have fun with. Even with this, I have to adhere to the TT sport ruleset and all of those would be fine.

The car is a lot more enjoyable Sport. I would say its much better in XA trim (which my car is in). At the very least you could do SST prep mods that keep it legal for Tuner2.

 

[Exzact]

The car is a lot more enjoyable Sport. I would say its much better in XA trim (which my car is in). At the very least you could do SST prep mods that keep it legal for Tuner2.

To your point, (sadly) I think theyre going to kill SST per the rumors and there is very little participation in that locally here. I guess I came into this car wanting something a bit more wallet and comfort friendly than a builders class but the more I discuss on this thread, coupled with the fact that I dont really plan on hitting many national stops this year, I think I'm going to hop in XA for a modest amount of money and to still be legal for S2 TT. Theres just so much participation in all the local regions, It was a lot of fun running my full prep c5z in cams locally the past few years which was also a big participation class (the car was only a few spots out of trophies at summer nationals too, but sadly it has a new home now).

 

[noogie]

The Supra is extremely competitive and relatively easy to prep in B Street based on National results. I just don't know how much money you'd have to throw at it to be competitive in XA. But if you're >90% alien, maybe that won't matter lol.

For track duty, you could just set the front sway to softest setting. Unless you also plan to prep it for a specific class. Fancy shocks will help with controlling the platform even if you're restricted to running factory springs. With the amount of money in XA, you could have a pretty nice set of shocks.

 

[Traxion]

You'll recognize my car from pics in my posts. Glad to see you moved to a supra. You'll have to figure out where you want to compromise or not. Build XA for track and just have fun in autox, or build for B-Street autox and sacrifice maximizing track performance. To put it into perspective, I currently run B-street setup with eibach bar and a set of wheels for autox and a different set of wheels for track. That's it, no suspension, no aftermarket pads. Due to the inherent understeer of the car, I wouldn't run more aggressive pads in the front personally. I will be matching compounds. I'm on my third set of OEM pads currently. The Huntsville pro-driver also runs OEMs.

For the 2023 OCT NCM TT the top 8 out of 19 were running under 2:22s and the top guys at 2:18-2:19. I can run a 2:22 all day on OEM pads and my track set of wheels and tires with plenty of room for improvement. I've only been on that track for 3 20 min sessions (besides the simulator). You can be competitive in S2 with just that, so I'd tell you to just hang in BS and S2 with only those things for the first year unless you've got an unlimited budget and then if you find yourself wanting more to jump to XA the year after. To each their own though, you're gonna love the car no matter whatever you do with it.

Since I track with NASA instead of SCCA, I'm planning to go ahead and build for their TT class at the end of this year (end of 3rd year of sticking with a BS build) and then move to XA.

 

[Exzact]

You'll recognize my car from pics in my posts. Glad to see you moved to a supra. You'll have to figure out where you want to compromise or not. Build XA for track and just have fun in autox, or build for B-Street autox and sacrifice maximizing track performance. To put it into perspective, I currently run B-street setup with eibach bar and a set of wheels for autox and a different set of wheels for track. That's it, no suspension, no aftermarket pads. Due to the inherent understeer of the car, I wouldn't run more aggressive pads in the front personally. I will be matching compounds. I'm on my third set of OEM pads currently. The Huntsville pro-driver also runs OEMs.

For the 2023 OCT NCM TT the top 8 out of 19 were running under 2:22s and the top guys at 2:18-2:19. I can run a 2:22 all day on OEM pads and my track set of wheels and tires with plenty of room for improvement. I've only been on that track for 3 20 min sessions (besides the simulator). You can be competitive in S2 with just that, so I'd tell you to just hang in BS and S2 with only those things for the first year unless you've got an unlimited budget and then if you find yourself wanting more to jump to XA the year after. To each their own though, you're gonna love the car no matter whatever you do with it.

Since I track with NASA instead of SCCA, I'm planning to go ahead and build for their TT class at the end of this year (end of 3rd year of sticking with a BS build) and then move to XA.

Yep I've seen the car, pretty sure I know your face too! Thanks for replying and I appreciate all the info.
I wont lie, I just flip flop back and forth between wanting to compete in a large class and playing the street pax game. You aren't by chance running 18's for your BS setup are you? Having a rough time finding off the shelf wheels in the appropriate width and offset in 18 that isn't going to be a big money investment.

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