Launch/no lift shift with MS v2

89-240gl+t · 03-01-2021, 12:54 AM

Hey guys thinking about adding launch control and no lift shift to my mega squirt. My car has a t5 trans, thinking about making a bracket and use the cruise control switch. Looks like the best spot is to mount the switch around the firewall area. Can anyone shed some light on what you guys did and how it’s wired up.

linuxman51 · 03-01-2021, 02:47 PM

I have a switch on the cluch that activates when I hit the pedal. I need to move the bracket and get a N.O. switch so it triggers at the bottom not the top of the throw. Still works pretty well

cwdodson88 · 03-01-2021, 03:46 PM

I used an old brake light switch on my 122. Wired per MS manual on a proto board that is actually the bracket for the switch. Then a switch on the dash to turn it on or off. Mine is adjusted so that it is right at the start of the engagement point. It seems to pull power down right as my trans lets pull out of one gear for a smooth transition to the next. The break in power is really small, and it takes some feel for how much to really dial it back. I started off using wheel speed/gear spread/rpm to find how far to kick back the rpm, and once I set it up how I liked it, I left it alone. Seems to do well. Logs show that my shifts are pretty quick and theres no lost boost.

89-240gl+t · 03-01-2021, 07:06 PM

Quote:

Originally Posted by cwdodson88

I used an old brake light switch on my 122. Wired per MS manual on a proto board that is actually the bracket for the switch. Then a switch on the dash to turn it on or off. Mine is adjusted so that it is right at the start of the engagement point. It seems to pull power down right as my trans lets pull out of one gear for a smooth transition to the next. The break in power is really small, and it takes some feel for how much to really dial it back. I started off using wheel speed/gear spread/rpm to find how far to kick back the rpm, and once I set it up how I liked it, I left it alone. Seems to do well. Logs show that my shifts are pretty quick and theres no lost boost.

That’s what I’m planning to do with mine as well, where do you have the switch located?

03-01-2021, 12:54 AM	#1
89-240gl+t Board Member Join Date: May 2012 Location: san jose ca	Launch/no lift shift with MS v2 Hey guys thinking about adding launch control and no lift shift to my mega squirt. My car has a t5 trans, thinking about making a bracket and use the cruise control switch. Looks like the best spot is to mount the switch around the firewall area. Can anyone shed some light on what you guys did and how it’s wired up. __________________ '84 242 Turbo Rebuilt 93 B230FT block, KL Racing T3 Cam, Dual Valve Springs, 38/46 Valves, Ported, ARP Head Studs, T5WC, MSII-Extra, EDIS, Nathan Exhaust Manifold, Ebay Turbo , 90lb injectors, Full E85, 3" exhaust, Kaplhenke Coilovers Front/Rear Koni Race Single Adjustable’s, RX7 Brakes, IPD 25/25 sways 1965 122s

03-01-2021, 02:47 PM	#2
linuxman51 BRANDSCHUTZVORSCHRIFTEN! Join Date: Dec 2002 Location: mont, AL	I have a switch on the cluch that activates when I hit the pedal. I need to move the bracket and get a N.O. switch so it triggers at the bottom not the top of the throw. Still works pretty well __________________ "They bum rushed them in their own crib, they drank all their beer, they partied with their ladies and they left with the trophy" Now with in-house Dyno tuning! Megasquirt Tuning! Plug and play LH 2.4 Megasquirt, now with stealth mode!

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