The Heat Soak Problem and Revised Cooling

[sbproducer]

“The Lotus Emira V6 features an optimized cooling system with revised coolant line routing for better flow to the main radiator and transmission oil cooler, resulting in improved thermal management and weight reduction.“

This is a statement from Lotus that was shared with the announcement of the new SEs coming out later this year. Correct me if I’m wrong but I think this applies to new Emiras post-June 2025.

Does anyone know if we can get this done somehow?

Also, my new armchair philosophy on modifications for my Emira will refocus on weight reduction and cooling as opposed to increasing power until those mods become more proven.

I think power consistency both across the rev range and during extended hard driving, whether in the canyons or on the track, have proven to be an ongoing issue for most V6 Emira owners. It is a problem for sure and deserves serious attention and safe solutions.

I’ll start by saying that I think a cold air intake should seriously be considered over a simple filter upgrade. I went with the Eventuri but the GRP also seems like an excellent option.

I have noticed an increase in both power and consistency and have zero regrets.

I strongly believe that improving cooling should be our primary focus at this point for performance, consistency, and longevity.

Thoughts and potential solutions appreciated..

 

[cryptovince]

As someone who owns a July 2024 build, I hope the upgrades are something we can get as well.

 

[crashprash]

Fairly certain this is it

 

[OppositeLock]

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 intercooler gets very hot and the car goes into limp mode until it cools off.

 

[seriously]

Fairly certain this is it

This doesn’t sound like an upgrade at all. So instead of using the dedicated charge cooler for the gearbox you bypass it / hook up the gearbox to the engine cooler because it is bigger and has overall lower temp? I think that’s misunderstanding the design of a separate charge cooler. Separating cooling functions between gearbox and engine allow for higher loads and greater efficiency. While the engine cooler is obviously bigger than the charge cooler it now has to do double duty when under prolonged load. I think observed lower temps are a short sighted observation. I could be misunderstanding the mod.