Track talk modifications

[crashprash]

I'll add a few more data points here. My car is the 6MT with touring suspension.

Some observations.

- OEM fluid can't handle the heat of track duty, even when it's fresh. I got soft pedal on 1 day old fluid from dealer.
- EBC SR-11 brake pads have too much friction for street tires, they're meant for slicks. Totally undriveable on the street.
- EBC RP-1 worked great together with Sport Cup 2's (LTS spec).
- Touring suspension is way too soft, I've got Nitrons coming, will track them a couple of times then report back.
- I've tracked the OEM SuperSports, the OEM PS Cup 2's, and now I'll be trying Dunlop Sport MAXX Race (80 treadwear tire). The SuperSports overheat in ~5 laps at laguna seca. Cup 2's were much better, lasted 25 minute session. Both feel very similar, but Cup 2's are a tiny bit more grippy. Other than heat management, surprisingly little difference. The dunlops will be for my next track day. I have a set of GRP forged monoblock wheels now.

Surprised that there isn't much difference between SS and Cup2. I was contemplating switching from SS to AD09 (a lot cheaper than Cup2) or SportContact 7 to keep some street drivability in the wet and longer life.

 

[OppositeLock]

The huge difference between SS and Cup2 was heat tolerance. I bet the SS is better in the cold too, but it doesn't get cold where I live.

 

[allenyao09]

Just took my Emira to the track first time yesterday. Here are some of my impressions so far:
- The car drives super well on track. As a track novice I did not push it too hard. Very balanced chassis overall. It did tend to understeer but not too bad.
- I tried both Sport and Track mode. The TC did not kick in. Rear end was very stable compared to my previous GR Supra.
- Cup 2 tires provided excellent grip, and they did not overheat during my sessions.
- I changed the brake fluid, so it was holding up well. The brake was strong for the first few laps, but the OEM pads started to fade after that.
- The manual gear box was a bit hard to work with on track. I had GRP short shifter installed. It made the 2-3 shift smoother but also more difficult to tell which gear it's going into.
- I also experienced the power cutoff when I hit the rev limiter as I didn't want to upshift in the middle of a corner. It was like hitting the brakes. I wished there could be a few more hundreds of RPMs to play with.
- The car sounds great on track. I had GRP intake filter, 3rd cat delete and VC all open. Personally, I think it sounds better than GTS4.0 (also on track).
- The seat is worst part. It was fine on the streets, but it barely provided any bolstering on track. I struggled to keep my body up in corners.

 

[seriously]

I might have a modification for the seats. I'm still testing it out...

 

[Tracked Emira]

1 more month until track day at New jersey motorsports park on 5/18. Anyone joining me?
www.nasane.com

 

[Tracked Emira]

Lightning at New Jersey Motorpsrts Park

 

[crainp]

Anyone have experience with Racing Brake steel rotor sets for track? Apparently Girodisc has not released theirs yet.

 

[crashprash]

For those running Cup2 or equivalent on track, are you also running baffled sump pans? I am planning to switch to AD09 and wondering if there was potential for oil starvation considering the higher g forces the tyres would now generate. A year ago, my dealer said they were looking at supplying TRD baffled oil pans...

 

[Tracked Emira]

My dealer said it would void my warranty

 

[bshads]

For those running Cup2 or equivalent on track, are you also running baffled sump pans? I am planning to switch to AD09 and wondering if there was potential for oil starvation considering the higher g forces the tyres would now generate. A year ago, my dealer said they were looking at supplying TRD baffled oil pans...

Cup 2's are going to raise your lateral and braking loads a bit to maybe like 1.5g peak from 1.2g range peak. It's not going to wildly change the vehicle. If you add a ton of downforce and can sustain higher loads for longer then maybe it makes sense, but is pretty overkill for a street car on track.

 

[DesertEmira]

For those running Cup2 or equivalent on track, are you also running baffled sump pans? I am planning to switch to AD09 and wondering if there was potential for oil starvation considering the higher g forces the tyres would now generate. A year ago, my dealer said they were looking at supplying TRD baffled oil pans...

Cup2 are delivered with the sport pack here so I presume have been tested pretty thoroughly and do not require a baffled pan.

Having said that I have heard a story of someone blowing an engine on track though so your concerns are likely a good discussion topic.

I have been running the CRS for a few months with the car mainly ran as a track car and started to wonder if oil starvation could genuinely be an issue. There are a couple of options available in the market.

 

[seriously]

Cup2 are delivered with the sport pack here so I presume have been tested pretty thoroughly and do not require a baffled pan.

I wouldn't be so sure of this. My guess is that oil starvation is quite rare, but so is hardcore tracking of a stock Emira.

 

[DesertEmira]

I wouldn't be so sure of this. My guess is that oil starvation is quite rare, but so is hardcore tracking of a stock Emira.

Fair comment, if I haven't had it happen to me and the car spends the majority of its life on track then it would more be bad luck if it occurred to anyone.

 

[OppositeLock]

I did a pretty hard track day on 80TW super-grippy tires and hit some solid G's over 3 hours of track time. My engine still works I'll send it out of an oil analysis. I, too, haven't put in a baffled pan yet since it would create a giant warranty headache. Once engine warranty is over, I'm definitely putting one in, out of an abundance of caution, and I definitely won't run Hoosiers before I do so.

 

[Steve Tillett]

Just took my Emira to the track first time yesterday. Here are some of my impressions so far:
- The car drives super well on track. As a track novice I did not push it too hard. Very balanced chassis overall. It did tend to understeer but not too bad.
- I tried both Sport and Track mode. The TC did not kick in. Rear end was very stable compared to my previous GR Supra.
- Cup 2 tires provided excellent grip, and they did not overheat during my sessions.
- I changed the brake fluid, so it was holding up well. The brake was strong for the first few laps, but the OEM pads started to fade after that.
- The manual gear box was a bit hard to work with on track. I had GRP short shifter installed. It made the 2-3 shift smoother but also more difficult to tell which gear it's going into.
- I also experienced the power cutoff when I hit the rev limiter as I didn't want to upshift in the middle of a corner. It was like hitting the brakes. I wished there could be a few more hundreds of RPMs to play with.
- The car sounds great on track. I had GRP intake filter, 3rd cat delete and VC all open. Personally, I think it sounds better than GTS4.0 (also on track).
- The seat is worst part. It was fine on the streets, but it barely provided any bolstering on track. I struggled to keep my body up in corners.

View attachment 62234

Why don't you consider using our B10XL Emira styled seats. You would be solid in the car, up to 4 inches lower and the car would be 30 kg lighter if both seats are changed. There is zero comfort compromise. They are more comfortable on long journeys.

 

[OppositeLock]

I sat in these seats in @GRP 's car this weekend, and they're great! I'm really tempted. Gotta figure out the seat sensor nonsense, though.

 

[allenyao09]

Why don't you consider using our B10XL Emira styled seats. You would be solid in the car, up to 4 inches lower and the car would be 30 kg lighter if both seats are changed. There is zero comfort compromise. They are more comfortable on long journeys.

It is on my list, but I prefer seats that kept the reclining feature for easier access to the storage space behind. I don't track my Emira very often so still would like to keep the daily drivability as much as possible. But either way I will need to try them first.

 

[Steve Tillett]

It is on my list, but I prefer seats that kept the reclining feature for easier access to the storage space behind. I don't track my Emira very often so still would like to keep the daily drivability as much as possible. But either way I will need to try them first.

I have had my seats in the Emira for two years, I pull one seat forward and put the bag through the middle. The problem with all the functions is they all add weight and with the split seat it compromises the shape, especially around the lower back. I have been racking my brain on how to do it without ending up back where the OEM seats are.