OTT tune now available for the LC250

[Mclaren]

I wonder if they could tune the ECU to increase the MPH limit on reactivating the front swaybar - I think Toyota set a 19mph limit to re-engage the swaybar.

 

[TakaraLC]

I wonder if they could tune the ECU to increase the MPH limit on reactivating the front swaybar - I think Toyota set a 19mph limit to re-engage the swaybar.

Why would ECU control swaybar?

 

[Mclaren]

Why would ECU control swaybar?

It's an electronically controlled swaybar. Therefore, the electronic sway bar is controlled by either the vehicle's Electronic Control Unit (ECU) or a dedicated Suspension Control Module (SCM), which functions like a specialized ECU for the suspension system.

 

[Bad1975]

SDM is probably controlled by the Body control module via input from Brake, Skid and/or 4x4 module.

ECU is just the engine, that’s not to say it’s not sending and receiving info from other modules but it wouldn’t originate anything other than engine sensors and calibrations (tuning) to manage it.

Lots of computers/modules in these, there are two mirror control units, one for each front door.

While I’d love to see the SDM reconnect speed be able to be modified I understand it won’t likely be very easy. 25 MPH would be nice. Anything above that I think the Yaw gyro should force it to reconnect in the event of a slide event.

I will say it can be quite loud and violent when it auto connects and that would probably get worse with speed.

 

[LcAz]

Curious if anyone doing a performance tune truly plans to keep their LC long term. I’ve always imagined that a boost tune shortens engine life, especially on a heavy offroad vehicle with no 0-60 aspirations and a 4 cylinder to boot. Would love some input on what benefits are being sought.

 

[RUN-8]

Curious if anyone doing a performance tune truly plans to keep their LC long term. I’ve always imagined that a boost tune shortens engine life, especially on a heavy offroad vehicle with no 0-60 aspirations and a 4 cylinder to boot. Would love some input on what benefits are being sought.

I’m seriously considering doing both.

However if I go down the tuning rabbit hole, I will stack the deck in my favor by:

1.) Continuing to perform oil and filter changes at no more than a 5K mile interval.

2.) Stay on top of differential and transmission fluid change intervals.

3.) Explore installing a dedicated auxiliary transmission cooler.

4.) Burn nothing but premium fuel, and probably carry a few bottles of octane booster in a storage compartment to ensure I can boost octane if 91 isn’t available.

From the development notes from OTT it sounds like anything beyond Stage 1 is going to require a larger turbo for meaningful gains, so the mild 30-40 WHP tune without a new turbo is pretty mild. I doubt any noticeable increase in wear will present itself unless you are constantly demanding high engine loads and therefore constantly in boost. If that is the case you are accelerating wear and tear in the stock configuration too.

 

[Bad1975]

I’ve been running a tune on our AWD Turbo Volvo since new for almost 17 years and 170k miles. Boost was 6-7 psi stock and just over 15 psi on the tune, in conjunction with a FMIC, intake and downpipe modification to remove a muffler restriction boost tube just prior to the downpipe. Haven’t replaced anything other than the PCV oil trap which lasts around 70k no matter what and of course just changed the entire suspension and engine/trans mounts for the first time at 150k due to wear.

Experimenting with Valvoline restore and protect on it and shorter oil change intervals currently to see if that will extend the PCV system or not? Was burning a small amount of oil prior too which has stopped after just 3k on that oil and MPG is back to when it was new again +5-6 MPG currently so looking good for the Valvoline!