Who here has tracked their Emira?

[Blackthought_]

Anyone here track their Emira? If so, did you track the car 100% stock or did you upgrade parts? Particularly interested if you changed out the brake fluid, pads, tires, etc.

 

[gcmak]

These pads https://www.seriouslylotus.com/performance-friction-front-brake-pads-emira
Pads are down about a third maybe closer to half worn.
Cracks started to appear on my second track day, on the third after a session you could watch and hear them appear.

Thanks, the vagueness and shaky cam photo is amazing haha. Not surprised by the heat-checking and ultimate cracking of the cross drilled holes when using aggressive pads. You might still hear popping/crackling of the your new rotors on cool-down - it's usually more of the contraction of the ring to the rotor hat/bell - at least the noise doesn't change for me on different cars regardless of rotor type (as long as it's a 2 piece or especially floating type rotor).

Appreciate you sharing the photos and info though, helpful data-point for me on this platform.

 

[Martylemoo]

That’s the boxes for the pads.

 

[crashprash]

Original discs are not up to track work, no discs that have holes are. That’s why race teams don’t have discs with drilled holes.
You can see how destroyed my fronts are after three hard track days.
Lotus won’t entertain a conversation about upgrades so I am going it alone to make it work.
Not looking for increased braking just discs that don’t fall apart.

@Warren-RB curious to know why your discs (non-CCB) are drilled and slotted as opposed to just slotted?

 

[Tomwa]

I don't think the rules about drilled v slotted holds for Carbon Ceramics.

I've seen plenty of Carbon Carbon race brakes with drilled holes. Though on more serious "F1" style I guess you do also see something more like

But I don't think I've ever seen a Slotted Carbon rotor.

 

[crashprash]

I don't think the rules about drilled v slotted holds for Carbon Ceramics.

I've seen plenty of Carbon Carbon race brakes with drilled holes. Though on more serious "F1" style I guess you do also see something more like

View attachment 53103

But I don't think I've ever seen a Slotted Carbon rotor.

Yep, hence why I was curious about non-CCB (iron rotors).

 

[Wolfmayhem]

I tracked mine at an open track event this past Saturday. Nelson Ledges Road Course in Garrettsville, OH.

One question for you guys. Every session I went out the brakes were smooth for approximately the first ten minutes but then for the last ten minutes of each session there was a vibration when braking. I thought I cooked the brakes the first time this happened but then it was smooth again for the first ten minutes of the next session. I think I had a total of 5 twenty minute sessions during the day. In the end, though, very pleased with the car. Balanced and a lot of fun on a road course.

Anyone have an idea of why this would happen?

 

[Jinba ittai]

Sounds to me like the rotors are heating up, distorting, then cooling down and contracting back to normal. I’m not an experienced track guy and I’m not sure if that’s actually possible. Best theory I’ve got though.

 

[Blackthought_]

I tracked mine at an open track event this past Saturday. Nelson Ledges Road Course in Garrettsville, OH.

One question for you guys. Every session I went out the brakes were smooth for approximately the first ten minutes but then for the last ten minutes of each session there was a vibration when braking. I thought I cooked the brakes the first time this happened but then it was smooth again for the first ten minutes of the next session. I think I had a total of 5 twenty minute sessions during the day. In the end, though, very pleased with the car. Balanced and a lot of fun on a road course.

Anyone have an idea of why this would happen?

Are you sure that’s not the ABS kicking in? (Maybe it’s coming up after you push the car harder after warm up laps)

 

[lynchy73]

Are you sure that’s not the ABS kicking in? (Maybe it’s coming up after you push the car harder after warm up laps)

I noticed something similar and my OEM brakes weren’t the same after a few sessions. Not terrible, but felt a bit off. Later I swapped in Endless pads on the front and did a few more sessions, I started to get pretty strong vibration when braking that didn’t clear up. Tried re bedding but made no difference.

I suspect the OEM pads left lots of residue on the disks and this showed up more after changing to a different pad. I’ve since skimmed the disks and are now bedding them in (no vibrations now).

Need to be careful with those OEM pads. They aren’t really up to track usage and I suspect they can leave lots of residue on the disks that are difficult to remove.

 

[KAR120C]

I tracked mine at an open track event this past Saturday. Nelson Ledges Road Course in Garrettsville, OH.

One question for you guys. Every session I went out the brakes were smooth for approximately the first ten minutes but then for the last ten minutes of each session there was a vibration when braking. I thought I cooked the brakes the first time this happened but then it was smooth again for the first ten minutes of the next session. I think I had a total of 5 twenty minute sessions during the day. In the end, though, very pleased with the car. Balanced and a lot of fun on a road course.

Anyone have an idea of why this would happen?

I’ve had it happen on track to my Emira as well as other cars with street pads. I’ve heard that it’s due to uneven pad material transferring to disk. It goes away after it’s cooled down but unsettling when it happens. I’ve never had it happen when I’ve run a more aggressive pad. So must be something about the friction material getting too hot on a street pad.

 

[Jinba ittai]

I’ve had brake fade from hot pads. However I wouldn’t describe that as causing a vibration. The brakes just stopped working very well. Maybe that’s something different.

 

[Wolfmayhem]

I’ve had it happen on track to my Emira as well as other cars with street pads. I’ve heard that it’s due to uneven pad material transferring to disk. It goes away after it’s cooled down but unsettling when it happens. I’ve never had it happen when I’ve run a more aggressive pad. So must be something about the friction material getting too hot on a street pad.

Thanks. It was unsettling when it first happened. What you're describing seems to make the most sense.

 

[Tomwa]

I’m going to Summit Point in two weeks FOR a 3 day track day. Did a car control clinic with SCCA at Lime Rock proving grounds last week. Highly recommend it if you want to safely learn what any car is like at the limit. Half day, with instruction. Spent 1/3 of the time on a wetted skid pad and the rest on the FCP proving grounds track. The whole point of the day is to get comfortable with the car at the limit. Learn how to manage understeer, oversteer, etc. Spinning out is expected, and the facility is designed to be a safe place for that to happen. Highly recommend.

Are you doing Summit main? Shenandoah? Both are excellent, though very different. Shen is a very tight course, but doesn't have much room to stretch your legs, won't get far from 3rd gear.

 

[Raab]

Are you doing Summit main? Shenandoah? Both are excellent, though very different. Shen is a very tight course, but doesn't have much room to stretch your legs, won't get far from 3rd gear.

I did Summit Main. It was awesome. First time there or doing a real track day. I think the fastest I went was 132mph before braking into turn 1, probably still overslowing the car on turn 10 (among many other areas) so there’s more to be had. Played with dropping to 2nd or keeping it in 3rd for turn 1 and turn 5, 3rd seemed just as fast and less work so usually stuck with that. Car did great, no issues other than eating through the front pads half way through day 2. Changed to EBC blues and pushed on. So easy to change pads I’m going to run track and street setups going forward. Other learnings… probably shoulda rotated my tires as I wore the left side a fair bit more than the right but I’ll factor that in to my next track day. Hope this was the first of many. Would like to get buckets and a half cage or harness bar because it was work keeping myself in the seat at times. Season is wrapping up in the Northeast. I took some potato quality video of my last session. This was a novice group so don’t judge me or the cars I pass too harshly. I’ve run this track many many times in I racing. It was so cool to get to lap it in real life. Buckets, harnesses, half cage, track wheels, track pad’s, probably a trailer in the future… God help my wallet. I’m hooked.

 

[Six Speed Stephen]

I did Summit Main. It was awesome. First time there or doing a real track day. I think the fastest I went was 132mph before braking into turn 1, probably still overslowing the car on turn 10 (among many other areas) so there’s more to be had. Played with dropping to 2nd or keeping it in 3rd for turn 1 and turn 5, 3rd seemed just as fast and less work so usually stuck with that. Car did great, no issues other than eating through the front pads half way through day 2. Changed to EBC blues and pushed on. So easy to change pads I’m going to run track and street setups going forward. Other learnings… probably shoulda rotated my tires as I wore the left side a fair bit more than the right but I’ll factor that in to my next track day. Hope this was the first of many. Would like to get buckets and a half cage or harness bar because it was work keeping myself in the seat at times. Season is wrapping up in the Northeast. I took some potato quality video of my last session. This was a novice group so don’t judge me or the cars I pass too harshly. I’ve run this track many many times in I racing. It was so cool to get to lap it in real life. Buckets, harnesses, half cage, track wheels, track pad’s, probably a trailer in the future… God help my wallet. I’m hooked.

Looks sick! Ballsy to put it in track mode

 

[Raab]

Looks sick! Ballsy to put it in track mode

Thanks! I ran the first day and a half in sport and my instructor and I both kept our senses alert to see if the stability was kicking in at all, and we never felt it, other than abs once or twice, so I felt reasonably sure I wasn’t overdriving the car… so moved to track mode for 2nd half of day 2 and kept working on being smooth with my inputs. A few spots in the carousel it kicks out a bit but I expected it and it was very predictable.

 

[seriously]

Correct me if I'm wrong, but since the Sport Cup 2s have the SAME thread pattern on both L and R tires, rotating the tires just involves swapping the tires/wheel as is left to right. You don't actually have to dismount the tires and remount them to the L and R wheels.

 

[Raab]

Correct me if I'm wrong, but since the Sport Cup 2s have the SAME thread pattern on both L and R tires, rotating the tires just involves swapping the tires/wheel as is left to right. You don't actually have to dismount the tires and remount them to the L and R wheels.

that’s correct as far as I understand it. It woulda taken 10 minutes… definitely planning to watch more closely and rotate when necessary during an event. Also still figuring out pressure. Lots to learn.

 

[Tomwa]

I did Summit Main. It was awesome. First time there or doing a real track day. I think the fastest I went was 132mph before braking into turn 1, probably still overslowing the car on turn 10 (among many other areas) so there’s more to be had. Played with dropping to 2nd or keeping it in 3rd for turn 1 and turn 5, 3rd seemed just as fast and less work so usually stuck with that. Car did great, no issues other than eating through the front pads half way through day 2. Changed to EBC blues and pushed on. So easy to change pads I’m going to run track and street setups going forward. Other learnings… probably shoulda rotated my tires as I wore the left side a fair bit more than the right but I’ll factor that in to my next track day. Hope this was the first of many. Would like to get buckets and a half cage or harness bar because it was work keeping myself in the seat at times. Season is wrapping up in the Northeast. I took some potato quality video of my last session. This was a novice group so don’t judge me or the cars I pass too harshly. I’ve run this track many many times in I racing. It was so cool to get to lap it in real life. Buckets, harnesses, half cage, track wheels, track pad’s, probably a trailer in the future… God help my wallet. I’m hooked.

Looks like some good smooth inputs. Don't love whatever instruction is telling people to keep left to allow passing...as it definitely results in some potential inability to see the wave by, and could cause some corner compromise but looks like everyone behaved themselves.

Not sure rotating your tires is an option. I don't think most of the tires for the Emira are bi-directional, and you certainly can't back-to-front.

Philly to Summit is quite the drive. New Jersey Motorsports Park is probably quite a bit closer for you.

 

[Raab]

Looks like some good smooth inputs. Don't love whatever instruction is telling people to keep left to allow passing...as it definitely results in some potential inability to see the wave by, and could cause some corner compromise but looks like everyone behaved themselves.

Not sure rotating your tires is an option. I don't think most of the tires for the Emira are bi-directional, and you certainly can't back-to-front.

Philly to Summit is quite the drive. New Jersey Motorsports Park is probably quite a bit closer for you.

Thanks!

This was with PCA (Porsche Club of America). All run groups have to give a point by to pass. The general rule is to point by to the inside of the next turn, ideally early in the straight, not late as some did. I could have waved it off but I wanted to work on my off line cornering so it was good practice. I think the cup 2s are bidirectional but they do have an outside and an inside. So they are asymmetrical but bidirectional.

Looking forward to going to NJMP, as well as well as Watkins Glenn, and pocono next year. We will see what my schedule and budget allows. A trailer will definitely open up my radius of available tracks