Race Tracking Your Supra - Information exchange

[tomfree]

I never tracked them unfortunately but people are saying online around 32-33 psi hot for either of them. I would start around there (likely around 27 or 28 cold) and try to see where your tires are wearing. If you're getting more wear on the outsides you're under and if it's in the middle you're overinflated although your alignment and particularly how much camber you're running is going to affect the wear as well as the shoulders are gonna take a beating with stock camber.

I've tracked the PS4S (different car) and the ESC02 (Supra). 33psi hot seems REALLY low, and would require cold pressures so low that you risk sidewall deflection on a street tire. I have no malfunction with a cold 27-28psi, but if you are running 30 min HPDE sessions, 37-38psi seems more of a happy and realistic hot range where the tire is still performing pretty well.

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[Rob_SER]

This is all great info. Any suggestions on tire pressures and temps for the PS4S or the Continentals?

I run the Continentals at 32 hot on the 86

 

[NINaudio]

This is all great info. Any suggestions on tire pressures and temps for the PS4S or the Continentals?

I found keeping the stock tires in the 36 to 38 range when hot was a good place for me. Once they hit 39 to 40 they would start to feel greasy. Wear at these PSI's has been even all around. I would probably start at that range for any street tire on the Supra.

 

[RedSupra]

I run the Continentals at 32 hot on the 86

I am looking hard at getting the ECS 02s in 225/45 17 for my GR to replace the stock Primacies I'm running now. What psi do you set them cold?

 

[bushido]

This is all great info. Any suggestions on tire pressures and temps for the PS4S or the Continentals?

33-34 hot

 

[FLtrackdays]

I run the Continentals at 32 hot on the 86

I am looking hard at getting the ECS 02s in 225/45 17 for my GR to replace the stock Primacies I'm running now. What psi do you set them cold?

Yeah measuring operating (hot) temps are best. Like the others are saying. Just be careful when comparing different car make & models. Even the same exact tire will vary for different vehicles, due to weight (& weight distribution).

Regardless of tire brand, if looking for cold starting temps, I’d start by bleeding off around 10% (~34 psi for our car) in the early morning. Keep bleeding them down to your operating (hot) temp as the day goes on. I like between 32-36 psi hot - depending on feel & track conditions. I’m roughly at the same pressure as you guys on the softer Maxxis Victra RC-1 tires.

that also comes with confidence that the people around you are thrust worthy and know what they are doing, that's not only a case of confidence in your own abilities

True, that is where the group you run with and their systems for moving up groups is important. I am also assuming passing with a point by as we are discussing moving up from solo to intermediate.

The more advanced group, the better the drivers. Typically... Poor @F348 when he’s gotta deal with yahoos like me in his red (most advanced group) ? I love the “optional” point by system. That way there isn’t a train ? of cars stuck behind someone and people are well versed at passing/ being passed anywhere on track.

 

[Rob_SER]

I am looking hard at getting the ECS 02s in 225/45 17 for my GR to replace the stock Primacies I'm running now. What psi do you set them cold?

I usually start around 28 cold and bleed air at the end of each session if they are higher than the targeted hot temp to get the back to target temp.

I run 245/35/18 square on Enkei TS-V.

-2.2 degrees of camber in the front, -1.8 degrees in the back.

On Tein Flex-A coilovers.

Mainly setup for the street but capable of occasional track driving.

 

[AJRMKV]

Another thought...I was in an intermediate group years ago and told my instructor I was bringing the car in early because the tires were greasy and the car was moving around a lot.

We chatted after the session and his input was: "When this happens again...stay out and make yourself adjust to the fact that the tires are greasy, or the brakes are hot. You won't run as fast of a lap time, but you'll learn a lot about driving near the limit because the limit of your car is now a lot lower."

If you're getting brain fade, tired, etc...bring the car in. If the car is broken/about to break, bring the car in.

If you're mentally ready and the car is healthy...but the car changes at the end of a session, challenge yourself to stay out and adapt.

Something I still struggle with is adjusting my rhythm when tires get greasy. Less so with AD09 since they have alot of laps in them. But A052 for example, get greasy fast and i'm not good at adjusting drastically once I zone in.

When I was younger tires that heat up quickly were a priority, then I got into super 200s, but at this point I prefer endurance 200s for the reason i listed above. That being said i'm switching from AD09 back to RE71RS next season. Love those

 

[tomfree]

Something I still struggle with is adjusting my rhythm when tires get greasy. Less so with AD09 since they have alot of laps in them. But A052 for example, get greasy fast and i'm not good at adjusting drastically once I zone in.

When I was younger tires that heat up quickly were a priority, then I got into super 200s, but at this point I prefer endurance 200s for the reason i listed above. That being said i'm switching from AD09 back to RE71RS next season. Love those

I've tracked (and raced) on different flavors of 200TW tires for most of my career. I remember running the original Falken RT215 on my NA Miata, and how they went off at the end of a session. The first "endurance" 200TW I remember was the Hankook RS2, and they won a LeMons race for us back in the day. My LeMons Mustang still runs the RS4 to this day because they just last forever.

I've tracked the Supra on ECS02 for a year, and have been on RE71RS for a little over a year. I really disliked the ECS02. We all know the ECS02 IS NOT a 200TW tire, but I probably overdrove it, hence why I didn't like it - therefore it was likely a me problem instead of a real one. When I put the 'stones on the car, it was SO much better. They do go away quickly but are still fun when they get "slidey"

 

[AJRMKV]

I've tracked (and raced) on different flavors of 200TW tires for most of my career. I remember running the original Falken RT215 on my NA Miata, and how they went off at the end of a session. The first "endurance" 200TW I remember was the Hankook RS2, and they won a LeMons race for us back in the day. My LeMons Mustang still runs the RS4 to this day because they just last forever.

I've tracked the Supra on ECS02 for a year, and have been on RE71RS for a little over a year. I really disliked the ECS02. We all know the ECS02 IS NOT a 200TW tire, but I probably overdrove it, hence why I didn't like it - therefore it was likely a me problem instead of a real one. When I put the 'stones on the car, it was SO much better. They do go away quickly but are still fun when they get "slidey"

What's your impression of the RE71RS so far?

 

[razorlab]

RE71RS fastest for me so far. They are MAGICAL on day 1. Really great grip. I also prefer their feel as well. Nice and stiff with good steering feel.

They do drop off like all Super200's do but they don't fall off a cliff like Nankang CRS do. You can stay out and drive with reduced grip if you want. Also, when RE71RS start to heat cycle out, they don't drop off a cliff like CRS do. CRS become liabilities once they heat cycle out. I am not exaggerating. I have almost looped the car so many times on 4-5 day old CRS.

Kumho V730 are 200's but a good in between super and endurance. I would say they swing slightly towards super. Great steering feel. I wish they came in wider sizes in 18". 275/35/18 run narrow. 295/35/18 would be perfect on 18x11.

If you are decently fast, ECS02 will get destroyed. I do see them as go-to's in early season days here in the North East because they are good in cold and wet, but as you can imagine, ain't nobody driving for PB's during that time.

 

[tomfree]

For my 3-lap time trial use case, the RE71RS is outstanding. They're decent while still stone cold on the recon lap and easy to get up to temp during competition lap 1. They talk, they have good feel, and they have tons of mechanical grip.

Combo street/track miles...be VERY careful on the street towards the end of life. They are hazardous in the wet at the end.

Lifespan for agressive street/track usage, maybe 5K miles. Mine were completely shot after 4500 miles, which included 2 track days, 2 skidpad events, 1 teeny autox, and 14 3-lap time trials.

 

[Rocksandblues]

You guys have tires!?

 

[FLtrackdays]

RE71RS fastest for me so far. They are MAGICAL on day 1. Really great grip. I also prefer their feel as well. Nice and stiff with good steering feel.

They do drop off like all Super200's do but they don't fall off a cliff like Nankang CRS do. You can stay out and drive with reduced grip if you want. Also, when RE71RS start to heat cycle out, they don't drop off a cliff like CRS do. CRS become liabilities once they heat cycle out. I am not exaggerating. I have almost looped the car so many times on 4-5 day old CRS.

Kumho V730 are 200's but a good in between super and endurance. I would say they swing slightly towards super. Great steering feel. I wish they came in wider sizes in 18". 275/35/18 run narrow. 295/35/18 would be perfect on 18x11.

If you are decently fast, ECS02 will get destroyed. I do see them as go-to's in early season days here in the North East because they are good in cold and wet, but as you can imagine, ain't nobody driving for PB's during that time.

Would you say the Kumho V730 are similar to the Maxxis Victra RC1? Heat up quickly and maintain good grip till cord. Unfortunately they’ve got the same larger sizes problem as the Kumhos.

If I run FARA time trials, I’ll need to bump up to a 200tw tire to maintain the class I’m in.

 

[razorlab]

Would you say the Kumho V730 are similar to the Maxxis Victra RC1? Heat up quickly and maintain good grip till cord. Unfortunately they’ve got the same larger sizes problem as the Kumhos.

If I run FARA time trials, I’ll need to bump up to a 200tw tire to maintain the class I’m in.

V730 faster than RC1. Most tires are.

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