Race Tracking Your Supra - Information exchange

[Islindur]

So I may go the route of ohlins, cancellor/camber plates (just do it all at the same time) but as far as what to do first - I’ve still got the stock tires and have a few more events left on them but do most see better handling going with better tires first or does the suspension make a bigger difference?

I’ve read a lot on here about better tires for track and will be researching again when I need to replace so maybe better to do it all at the same time? But also I don’t want to have a dedicated set of track wheels - still trying to get the best bang/$ and be a “semi” daily.
TIA for all the info

I tried that, bought set of separate wheels n tires for track. Trust me, cheaper in the long run. Even used 3.0 stock wheels.
For ohlins U need proper camber plates too.

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[Rocksandblues]

Nosa. If I was more stiff I’d be skipping like a stone on turns. I do have sway bars, all the SPL goodies and on their track setup recs. So I’m really impressed with them for Sebring, Homestead and back & forth to the track. I keep saying I’ll get a pro in my car for proper setup. When I do, I’ll post it. But it won’t be for everyone because each car (parts) and track conditions are different.

If you are building a dedicated track car, competing, or have a race team to make the adjustments & recs - I’d use what they‘re using. Like Thunder Racing Bunny in Greenville SC. So glad I don’t live close to there ? If you’re knowledgeable with suspension setups and doing this solo - JRZs from Jackie PHD would be my choice or



follow what Wes is doing with his. Ideally you’ll make adjustments for each track you’re driving at and the conditions. Those more advanced setups are sweet for sure!

 

[kaj]

So I may go the route of ohlins, cancellor/camber plates (just do it all at the same time) but as far as what to do first - I’ve still got the stock tires and have a few more events left on them but do most see better handling going with better tires first or does the suspension make a bigger difference?

I’ve read a lot on here about better tires for track and will be researching again when I need to replace so maybe better to do it all at the same time? But also I don’t want to have a dedicated set of track wheels - still trying to get the best bang/$ and be a “semi” daily.
TIA for all the info

With tires, you are either doing two sets or just running a street tire and dealing with the performance or lack thereof. I use the R-S4 any time I want a performance street tire. Federal used to have a tire that was popular with the Enthusiast class of GTA. Not sure if it's a thing any more, though.

 

[racebuild]

Just an FYI, I haven't pulled the trigger on anything yet.

The JRZ RS Pros are really tickling my fancy. I'm trying to determine the feasibility of remote reservoirs, including mounting, charging with Nitrogen, etc. I'm not sure if it's a jump I want to make on my car just yet... but buy once cry once is a motto of mine.

Can't argue with the results the Supra folks up here are having with MCS 2-ways. Results speak for themselves and AR-Motorsports seems like a good dealer to purchase through for future support and setup support.

Mounting and routing is easy, no cutting involved. I’ll show you some tricks I’ve learned over the years.

Charging nitrogen is easy with the equipment, if you don’t have the equipment it’s not a big deal… it’s a set and forget type of deal. I usually check nitro pressures every few events and i have yet to see one lose pressure.

 

[kaj]

Mounting and routing is easy, no cutting involved. I’ll show you some tricks I’ve learned over the years.

Charging nitrogen is easy with the equipment, if you don’t have the equipment it’s not a big deal… it’s a set and forget type of deal. I usually check nitro pressures every few events and i have yet to see one lose pressure.

Nitrogen is such a relatively large molecule, don't seem to see It leaking out of most things. Even tires. Makes sense that they would hold pressure on suspension components. That and the lack of thermal expansion is why they use it, I assume.

You guys are getting me all fired up. I have to stay on the stock suspension for the rest of this year, but next year I'm free to do whatever I want.
I can't wait to see how this car does with coilovers and a better alignment.

 

[kyle9]

Just an FYI, I haven't pulled the trigger on anything yet.

The JRZ RS Pros are really tickling my fancy. I'm trying to determine the feasibility of remote reservoirs, including mounting, charging with Nitrogen, etc. I'm not sure if it's a jump I want to make on my car just yet... but buy once cry once is a motto of mine.

Can't argue with the results the Supra folks up here are having with MCS 2-ways. Results speak for themselves and AR-Motorsports seems like a good dealer to purchase through for future support and setup support.

FWIW my JRZ RS Pros haven't ever really felt good. I'm going to have them revalved and customized in the offseason if I decide to keep them...

They're really crashy over bump and curbs (unless they're set way too soft) and each click of adjustment is too large. It's very difficult to ever get them in the sweet spot. They always feel too harsh or too soft in one way or another.

The camber plate aren't the best either. You have to loosen the entire shock tower to make any adjustments which doesn't seem ideal.

I had to wait nearly 4 months for them and couldn't make changes after ordering otherwise I was told my order would get sent back to the start of the queue and I'd have to wait months longer. This was even before they went into production.

The upgrades ($$$) don't seem to offer any performance benefit.

After running these for a season of time attack, I really don't see a single reason to buy these over any competitor product.

 

[racebuild]

FWIW my JRZ RS Pros haven't ever really felt good. I'm going to have them revalved and customized in the offseason if I decide to keep them...

They're really crashy over bump and curbs (unless they're set way too soft) and each click of adjustment is too large. It's very difficult to ever get them in the sweet spot. They always feel too harsh or too soft in one way or another.

The camber plate aren't the best either. You have to loosen the entire shock tower to make any adjustments which doesn't seem ideal.

I had to wait nearly 4 months for them and couldn't make changes after ordering otherwise I was told my order would get sent back to the start of the queue and I'd have to wait months longer. This was even before they went into production.

The upgrades ($$$) don't seem to offer any performance benefit.

After running these for a season of time attack, I really don't see a single reason to buy these over any competitor product.

Explain crashy? JRZ can eat up a lot of curb without upsetting the car.

Are you maxed out on adjustments at all? What gas pressure and spring rates? How many clicks comp/rebound?

This style camber plate design I actually prefer over the 4 allen screws. Reduces overall stack height, and easier to turn 4 factory bolts and slide vs accessing 4 Allen head screws via the hole in the shock tower.

Not sure who you ordered through, you can make spring rate changes… that definitely doesn’t change your “spot”. Average eta is 3-4 weeks, I ordered on the 19th, got an update that eta is 2 weeks earlier today.

 

[FLtrackdays]

So I may go the route of ohlins, cancellor/camber plates (just do it all at the same time) but as far as what to do first - I’ve still got the stock tires and have a few more events left on them but do most see better handling going with better tires first or does the suspension make a bigger difference?

I’ve read a lot on here about better tires for track and will be researching again when I need to replace so maybe better to do it all at the same time? But also I don’t want to have a dedicated set of track wheels - still trying to get the best bang/$ and be a “semi” daily.
TIA for all the info

If you just do tires and keep the OEM suspension (sway bars if you want), you won’t be sorry. Buddy down here at Homestead ?

5 hundredth of a second faster than me. Dude on only sway bars and tires. He’s been doing this for years, like me. So I promise you the car is capable out of the box. I happen to think adding extra negative camber is better for the tires and me. LCA was my best option for those adjustments once I got the Ohlins, since the Ohlins play better with the OEM top hats.

So want vs need. All this stuff is definitely not needed for this car. Seat time will be your best expense. After I beat Carlo’s time, then I can look at what else I need to do to the car ? Jk, there’s plenty room to work on my driving skill.

However, if you really enjoy setting up your suspension, tinkering or goal is to compete, go for the all out, change my setup every track event, coilovers. Carlo and I happen to keep it simple and he’s still faster than me ? ?

 

[FLtrackdays]

With tires, you are either doing two sets or just running a street tire and dealing with the performance or lack thereof. I use the R-S4 any time I want a performance street tire. Federal used to have a tire that was popular with the Enthusiast class of GTA. Not sure if it's a thing any more, though.

Good point for peeps to be on a street tire in the beginning, hear the squeal on track. But for you, why not just drive on track tires all the time? I believe Wes does the same thing. Only reason why I’m one OEM tires off season is because they came with the stock wheels. So being cheap, I want to burn those up 1st. Then I’ll get some sweet 200 tread wear track tires to slap on them ?

That ain’t fair at all ? ?

FWIW my JRZ RS Pros haven't ever really felt good. I'm going to have them revalved and customized in the offseason if I decide to keep them...

They're really crashy over bump and curbs (unless they're set way too soft) and each click of adjustment is too large. It's very difficult to ever get them in the sweet spot. They always feel too harsh or too soft in one way or another.

The camber plate aren't the best either. You have to loosen the entire shock tower to make any adjustments which doesn't seem ideal.

I had to wait nearly 4 months for them and couldn't make changes after ordering otherwise I was told my order would get sent back to the start of the queue and I'd have to wait months longer. This was even before they went into production.

The upgrades ($$$) don't seem to offer any performance benefit.

After running these for a season of time attack, I really don't see a single reason to buy these over any competitor product.

My worry about fully adjustable coilovers. I’d need Thunder Bunny Racing or my local race team/shop in Sebring (70 miles away) to make the adjustments. Have you considered going to a full blown race shop? They would have to get in the car, put down some laps, make adjustments, put down some more laps, which cost $$$, what those coilovers really need. So many variables they can play with.

For ohlins U need proper camber plates too.

Why not use the OEM top hats and just use adjustable lower control arms? Wouldn’t you get enough negative camber with those? If you’re thinking about the Ohlins ?

 

[Rocksandblues]

FWIW my JRZ RS Pros haven't ever really felt good. I'm going to have them revalved and customized in the offseason if I decide to keep them...

They're really crashy over bump and curbs (unless they're set way too soft) and each click of adjustment is too large. It's very difficult to ever get them in the sweet spot. They always feel too harsh or too soft in one way or another.

The camber plate aren't the best either. You have to loosen the entire shock tower to make any adjustments which doesn't seem ideal.

I had to wait nearly 4 months for them and couldn't make changes after ordering otherwise I was told my order would get sent back to the start of the queue and I'd have to wait months longer. This was even before they went into production.

The upgrades ($$$) don't seem to offer any performance benefit.

After running these for a season of time attack, I really don't see a single reason to buy these over any competitor product.

I will take them off your hands...

 

[Islindur]

Why not use the OEM top hats and just use adjustable lower control arms? Wouldn’t you get enough negative camber with those? If you’re thinking about the Ohlins ?

what if I brake LCA at track by accident? Im basically grounded, since Im in EU so I'm not going to get SPL in 3 days i broke stock one on last session, even with oem part it took me 2 weeks to sort out...

R&T + Millway camber plates maybe.

 

[FLtrackdays]

what if I brake LCA at track by accident? Im basically grounded, since Im in EU so I'm not going to get SPL in 3 days i broke stock one on last session, even with oem part it took me 2 weeks to sort out...

R&T + Millway camber plates maybe.

There you go! Or keep a spare set. That’s wild yours broke ? Sorry to hear. I know tons of folks that run the SPL LCAs and no breakage. However, not knowing your geometry, you might have too much tension on them, need SPL endlinks for example.

I love having spare parts after doing this a while. There’s always shortages and ? happens. So I hear ya brotha!

 

[Islindur]

There you go! Or keep a spare set. That’s wild yours broke ? Sorry to hear. I know tons of folks that run the SPL LCAs and no breakage. However, not knowing your geometry, you might have too much tension on them, need SPL endlinks for example.

I love having spare parts after doing this a while. There’s always shortages and ? happens. So I hear ya brotha!

Well, thats why aim looking at ohlins and not MCS for example. I have Ohlins dealer here, I can just drop the stuff get it rebuilded and back on in few days, no need to send full coils abroad and wait weeks... and stuff can happen, esp if u drive on the road

Still, trying to do sth about those stupid oil temps (300f+) and dunno how :/ will do hx + main rad + hood vent but thats about it, no other ideas...

 

[kyle9]

I will take them off your hands...

Sure, $8k and they’re yours.

Would be more than happy to order a new set of something else

 

[Rocksandblues]

Sure, $8k and they’re yours.

Would be more than happy to order a new set of something else

too much. just offering if you were going to throw the junk away or something

You need a race shop help with matching spring rates and settings. a set up like that should be super undramatic.

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