Fiesta ST Cobb Accessport Launch Control

[dyn085]

My LC is pretty stable at 4k. I used it once and 4k was way too high for me.

 

[Kip2MyLou]

It's stable; it holds at 4k. Just while it's holding it will almost stutter while holding.

And I had a question about that; what's the pros and cons of having a high or low set launch control?

 

[dyn085]

It's stable; it holds at 4k. Just while it's holding it will almost stutter while holding.

And I had a question about that; what's the pros and cons of having a high or low set launch control?

It depends on the surface you're launching from. A typical street won't have a lot of traction, so you'll want it a bit lower to avoid wheel spin. A drag strip will have tons of traction, so you'll want it a bit higher to avoid bogging.

 

[Kip2MyLou]

Oh okay. That makes sense. So what's a good romantic to set it at? I'll change it for my next personalized map.

 

[dyn085]

Oh okay. That makes sense. So what's a good romantic to set it at? I'll change it for my next personalized map.

Romantic? Hardly.

J/k, if you use the feature then you should probably experiment with what your surfaces are like wherever you use it. I don't use it much (at all), but if I did I would probably have it set between 2400-2800 rpm and adjust fun there based on how the car responded.

 

[Kip2MyLou]

Romantic? Hardly.

J/k, if you use the feature then you should probably experiment with what your surfaces are like wherever you use it. I don't use it much (at all), but if I did I would probably have it set between 2400-2800 rpm and adjust fun there based on how the car responded.

Autocorrect and not much sleep aren't a great mixture. Haha.

But that makes sense. I'll definitely try that next time. Thanks.

 

[SecretSquirlTuned]

At the track I have mine set at 4350 that seems to be the sweet spot for my mods and track surface I use. Any lower than that it would bog real bad, Any higher and it blows the tires off and waste the run.

 

[JPGC]

I'm running the Freektune with my Accessport and have the launch control set at 3k rpm with 3-4 pounds of boost. It requires much finesse with the clutch, lol

 

[SPDinNY]

so when I tried using LC for the first time today it holds at 2500 RPMS and does the fuel cutoff, how do I change this?

 

[iso100]

so when I tried using LC for the first time today it holds at 2500 RPMS and does the fuel cutoff, how do I change this?

If you're on the latest software here are the steps (from: https://cobb.app.box.com/ford-custom-features):
Launch Control has been completely redesigned to offer greater flexibility along with future functionality. Several new requirements and conditions have been added to allow a single calibration to be used on the street, strip, track, and dyno.

Our solution provides two styles of engine speed control. The default is Fuel Cut for those who prefer to build boost while preparing to launch. The alternate is Throttle Cut for those who prefer to launch the vehicle without building boost. The latter method avoids placing undue stress on the engine by utilizing
the OEM Target N control PID systems.

There are multiple conditions that must be met in order for the launch control feature to be used. These can be seen on the diagram above, but are listed below for convenience:

1. Launch Control must be enabled using the “Enable Launch Control (Main)” switch.
2. Burnout mode must not be active (see more about Burnout Mode below).
3. Vehicle Speed from the un-driven wheels must be under the “LC Exit Threshold (VSS)”.
4. Accelerator Pedal Position must be over the “LC Activation Threshold (APP)”.
5. The vehicle must be in neutral, 1st or 2nd gear.
6. The Clutch Pedal Position must be at least partially engaged.
7. To utilize the Fuel Cut limiter, only steps 1-6 are required.

To utilize the Throttle Cut limiter, the Hotswap LC button must be held down.
Once the vehicle is launched and conditions are no longer met the ECU will resume normal operation of
the engine speed limiters.