Hi has anyone fitted launch control to a gen 4 ?
Hill climb, sprint standing starts.
I haven’t heard about it being in an SR3, but it is an available option on the SR10
Hi Charle
I have asked life in the uk if the F88RS ecu can run Launch?
A lot of the hayabusa bike guy’s use the MSD launch system that is externally adjusted and connects to the clutch.It is a spark only limiter.
Work in progress.
Yes, it can be done but there are a few things to consider.
First is that your ECU is factory locked, so you either need to get them to set this up or sort the ECU.
Second is that due to the above ones it is set (done from wheel speed) then you have no way of turning it off once activated which if your wheel speed fails leaves you stuck at the launch RPM.
A cal switch maybe poss but I cannot remember if the ECU has enough inputs to do this,
Third is potential engine damage - whereas the SR10 would be able to control things a lot better due to DBW throttle you don't have this on an SR3. The way the ECU then limits/controls the RPM and launch can cause valve train issues - I have seen a few engines suffer problems as a result of this.
Hi Dan, thanks for your input.
I have had a reply from an engineer at Life saying pretty well the same as you. IE Radical will have to open the ECU and make the changes .
I am working on a hybrid system using pneumatics from the onboard compressor and a single action air cylinder that will stop the accelerator peddle at peek torque rpm (say6.5k) and a 12v dc actuator.
The system will be switched via a micro switch (N/O) that breaks the latch on a relay at bite point of the clutch allowing the accelerator to have full throttle.
The launch latching relay will be latched by a momentary button (N/O) on the steering wheel.
A line locker can be added to the front brakes to hold the car and switched via the same relay.
This system will not control wheel spin but hopefully will allow for constant starts and not having to watch the rev counter and the starting lights.
Hopefully testing this weekend.
Sounds interesting, let us know how you get on!
