How-To: Set-up Flat-Foot-Shift and Launch Control using v4.0x OTS Maps

Created by Anthony Cardinale, Modified on Sat, 07 Apr 2018 at 12:36 AM by Anthony Cardinale

Adjusting/Activating Launch control and Flat Foot (no lift) Shift parameters

NOTE: OFT ROM's have a special patch for these functions use the definition files from the www.openflashtablet.com website downloads page (v4.01)

Launch Control (LC)
is a second RPM limiter that is active when the vehicle speed is below the Launch Control Disable Speed value; ignoring any clutch input.


Launch Control Disable Speed = Speed at which Launch RPM is disables;

  • Above this wheel speed, your REV limit will go back to your normal setting. (Default Setting = 6mph (approx. 10KmH)).


Launch Control RPM Delta = The amount of engine speed that is removed from your normal RPM limiter forcing the active rev limiter LOWER = Launch RPM 


LC Logic is as follows:


Normal Rev Limit - Launch Control RPM Delta = Launch RPM

  • e.g. With your normal Engine Rev Limit set to 7600RPM, and your LC RPM Delta set to 3600, and your active Launch RPM will be 4000RPM (7600-3600=4000).


To disable Launch Control completely, set LC RPM Delta = 0

Flat-Foot Shift (FFS) [aka No Lift Shit]:


This is another RPM limit activated that enables while the Clutch is depressed. There is no throttle position requirement <- for this reason it can activate on downshift.


Flat Foot Shift RPM Delta = The amount of engine speed that is removed from your normal RPM limiter forcing the active rev FFS limiter

  • E.G.: If your normal RPM limit is 7600, and your FFS Delta is 2000, your FFS RPM limit will be 7600-2000= 5600 RPM.  
  • To disable FFS set Delta to 0 (zero) in the table FFS RPM Delta using Romraider


While up-shifting with your foot on accelerator, RPM will be limited to 5600 RPM as soon as you depress clutch; even while your foot is depressing the accelerator. NOTE: There is no throttle position requirement <- for this reason it soley activate by the state of the clutch switch. 


If you accidentally hover/press the clutch even slightly while driving, this feature can sometimes cause issues on downshifts when you set the Flat Foot Shift RPM Delta to low.


Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select atleast one of the reasons
CAPTCHA verification is required.

Feedback sent

We appreciate your effort and will try to fix the article