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So, on a different topic, I logged my coolant temperature (OBD-II ECT channel in AIM). We had 102F outdoor temperature, and I was pushing hard. The coolant temperature started out around 195F at the beginning of a session, over a couple laps rose to 211F and then stayed between 211F and 219F for...

18" wheels make tires more plentiful and cheaper. Since I still street drive this car, though, I would prefer to keep the parking brake intact. 18" wheels won't clear the motor housing.

There is no TPMS code to copy, it's just got to be the correct sensor frequency and protocol - meaning ,you need the right sensor. The sensor ID doesn't seem to matter to the Emira. I ordered a second set of wheels with their own TPMS sensors from @GRP and the car recognizes the new sensors...

Porsche simply makes better engineered cars than Lotus. The 911 has weight distribution similar to an Emira, and the 911 GT cars will beat those better balanced Caymans. 911 is about 39/61, Cayman is around 45/55 and V6 Emira is 39/61, however, the Emira's engine sits more rearward than the...

I'm on Nitron ClubSports. There is less roll than stock, for sure, but still lots.

Yeah, I'm not sure why the Emira is so hard on the tires. I see signs of insufficient camber, and signs of overheating. The rear tire is scrubbed off on the outside but plenty of rubber elsewhere. The front tire is losing chunks of thread block.

The correct pressure is another good question. I used a probe pyrometer on my tires until I found a pressure where the temperature changed linearly across the tire, that came out to about 34 psi in front and 36 in rear when hot. It similar to yours, and the center being 16F higher means your...

I'm finally getting the hang of driving the Emira. Here's some video from a recent track day, in high heat, about 100F temperature. Linking to my best lap, naturally :) The line is a little different than the Elise, since you're concerned more about setting up for applying power, than to...

Hi All, For those of you who track, what are your favorite tires these days? I just destroyed a set of Dunlop Sport Maxx Race 2's, in OEM sizes, after 12 sessions (20-30 minutes each). I have my camber maxed out at about -2 degrees in front and rear, but it's definitely not enough for pushing...

Yep, it's horrible. I wouldn't be surprised if those two little black lines embedded in the windshield are the antenna, and that's not very much of an antenna.

I've tracked my V6 on hot days, and I'm about to do a 102F track day this Friday, and I've not noticed heat soak. You have to let the car idle for a good 5 minutes after a session to avoid overheating the supercharger/intercooler but other than that, it did fine. If you don't let it idle, the...

Here is how you debug whether you need new O2 sensors, or if your catalyst failed: https://www.lotustalk.com/threads/p0420-simple.351617/?post_id=4625665#post-4625665 Your pre-cat O2 sensor being 0.0V is suspicious, but only if it's flat-lining at 0.0. Like @Kimmax said, log your pre-cat and...

I went from touring to clubsport. It's significantly more firm, but the ride is pretty good. It's not as amazing at soaking up road imperfections as the touring suspension, but hugely better on the track. On the street, I like 8 clicks from softest in front, and 10 clicks in back. For track, 2-3...

Where, pray tell, did you get this service manual?!

Oh, that's terrible. In the US, that would be grounds for forcing a "lemon law" buyback of your car. You'd get almost all your money back with only 2,000 miles on it.

Mine wear unevenly too, but not too badly. My Elise pads wore unevenly as well, as did the ones in my Focus RS. I just assumed it's normal.

Brake pads rarely wear completely evenly on the track - the leading edge tends to go quicker, and yes, the OEM pads are no good for tracking. Try some EBC RP-1. They're quite good, and not too bad on the street, no major squeaking, just occasional reminders that they're track pads.

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.

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...

Carplay is complex. It supports up to 48kHz 24bit audio on wired and wireless, but the actual bitrate you get could be lower as the phone and head unit negotiate one between themselves. It's totally possible a different one is being negotiated over WiFi. This is completely separate from...

He had the V6 in tour mode and the AMG in track mode, of course they'll sound different. The AMG has a turbo muffling it, and 2 fewer cylinders. Can't sound as good, IMO.

This code should not happen if everything is working correctly. It's not random. You won't know until you diagnose it properly.

If Lotus makes any major structural changes, like lengthening the car or messing with the rear to fit a bigger engine, they'll have to go through another round of crash testing, and any new engine will need emissions testing. Euro-7 is very tough, engines have to run at lambda=1 all the time...

The really fast GT3RS guy _told_ me that he was doing 1:26's, I don't have proof. Some creative storytelling could always be involved, but given his insane closing speed on me, I'm sure he was incredibly fast. He absolutely reeled me in the high speed corners, which makes sense with aero.

The ECU expects a particular voltage range from the sensors. If it doesn't get this voltage, you get an immediate O2 error code. The code will tell you which sensor. The ECU also compares pre-cat/post-cat O2 readings against each other if sensor voltages are ok, that's how it tests catalyst...

The Cayman is a more balanced car than the Emira, for sure, and at the limit it's pretty neutral. More factors into this, though. The Emira has a LOT more rubber in the rear than the front, and Lotus is clearly tuning it for understeering. When I was driving mine on the track in a giant rain...

I'll try them next time. I've still got a new set of RP1's to work through in my parts bin, and I'll try the PFC's. Thanks for the tip.

Maybe the brake feel is just relative to what you are used to. I tracked my Elise for 16 years and got very used to its brakes, and compared to it, the Emira's brakes are difficult to modulate. My first track day was on EBC SR-11 pads, and those completely overpowered the tires (Supersports) and...

This is a BS, as data loggers don't lie. My 80 threadwear Dunlop Sport Maxx Race tires have much more grip than the PS2 LTS tires I used before, and the SuperSport LTS tires before that. The PS2's do have a nicer ride than the Dunlops, but I'm also no longer on the stock coilovers, so that...

I've driven the ClubSports now at a track day, and a bunch on the street, and overall, they're great. The compression/rebound adjustment knob has about 24 steps. The shop which installed it got them set at 12, based on my count. I count the first click as "0" then add 12 more. For the track...

I had mine corner balanced when the Nitrons went in. All it does is make it feel like it grips a little better. No downsides.

Log the O2 sensor voltages as you drive around. Heat could have damaged it.

Be careful with that Tesla self driving. I was a few cars behind this guy when he died and saw it all go down: https://abc7news.com/dan-noyes-tesla-crash-iteam-barrier-battery-safety/3293529/ Never, ever let your guard down. They're a lot better today, but you need to pay attention. I can't...

There's a saying that the fastest track car is a rental car :) Here in the US, lots of car rental places not far from race tracks have learned this lesson, so quite often, if you drive to the track, they show up soon after with a tow truck and take it away. Read your contract before doing this.

Track days are so expensive, and require taking time off work and stuff - absolutely go for that last session, just remember that you're tired and you're not going to do your best that session, and just have fun. strangely, when relaxing, you still go surprisingly fast. That is, if you don't...