A changeover relay these differ from normal relays being 1 circuit is always active.
Diy 2 step rev limiter.
This also activates the boost vs time function as well.
To have it work as a launch control flat shift or what some call a 2 step have the tach powered only when the clutch is pushed in.
Basically it all boils down to ignition control.
Got thinking i want a 2 step limiter but for what they are was a bit exxy being a ingle income family budget racer so here is what i done max cost is 25 pretty sure the msd 2 step is over 100.
This is where a 2 step rev limiter can really shine.
The transbrake positive signal activates the 2 step rev limiter 1.
Attached thumbnails 09 23 2019 09 37 am 3.
Hook the 85 and 86 pins of the relay to the shift light on the tach and have the igt signal for a toyota run through the 87a and 30 of the relay.
View profile view forum posts private message view blog entries junior member join date may 2019 posts 7 speeding g60.
Improving your cars 60 ft and 0 60 times can improve in ways you never thought possible just by setting up 2 step.
Thank you very much for your input.
Just looking to see how you guys wired up your 2 step with your clutch pedal can you post how you wire it and what parts if any you used i have a msd digital 6 with a 2 step rev limiter thanks 1993 mustang gt 393w tko600.
Adjust shift light to desired rev limit.