Tephra Brake Switch Patch

RobbieOh — Tue, 12 May 2026 17:41:49 GMT

Hey Fam. I'm running Tephra Rom 55580306 on my 2011 MR SST. It is currently set with the clutch switch for launch control. I emailed Tephra about it, but he was in the middle of a lot of things and never got back to me. I don't like to bother, so wondering if anyone has the patch to change it to the Brake switch they could share with me?

Thanks in advanced.

"Antilag" on stock ECU works!

dj571124@gmail. — Sun, 10 May 2026 18:06:18 GMT

Hopefully im posting this in the right location!

about a year ago, i set out to see if it was possible to have a sort of rolling antilag feature on the stock ECU because i had a GTX3576, pretty laggy and was not wanting to keep beating up my brakes with brake boosting. i downloaded electrical diagrams, wiring diagrams, tried different things with different maps and finally was able to get it kinda working! after about 6 months of what ever free time i had from my day job, i went from my experimental harness to a full plug in harness with oem connectors and a refined tune so everything works in harmony.

not only was i able to get rolling antilag working, i was able to implement a version of flat foot shifting logic which was nice because this is a feature thats lost when you go flex fuel tune. whats more is when i had "no lift to shift" enabled, i would notice in the logs that between gears, i would lose about half the boost every time. i found in the quarter mile, i was faster without "NLTS" than with it. Now, with flat foot shift, all the boost is there and never lets off between the gears. I was able to get some timing stragety between the gear changes so the car almost sounds like an automatic, the gears go in to the next much more smoothly because the driveline is being unloaded due to the timing stragety, so much better! this alone was worth almost half a second at the strip! the antilag ended up being so good, before this, it was almost impossible to build all the boost in 1st gear without standing on the brake pedal. now, i have the ability to build all the boost (32psi) in 1st and carry it through every gear.

further refining all the maps related to this, i was also able to do other things like......im ok with some burbles on decel, but would find i would get tired of it. then i would miss it, then get tired of it again. what made it more of a pain is the only way to get this to work or not was to retune the car every time. well, i was eventually able to figure out that i could have this on demand. with the same trigger button for the antilag, i could use the button on decel to activate the burbles, pops and bangs, or some flames, how ever i chose to tune it. if i dont want any decel events, i simply leave the button alone.

and another thing that i was able to do is quicker engine warm ups. im built motor on e85. the highest wear and tear on an engine is when its cold, esp on e85. its so important to get to operating temp as quick as possible so piston to wall clearance is optimal and e85 washing down the cylinder walls is reduced as quick as possible. this is why if you ever change your oil, you can smell e85 and gas in your oil is the worse for bearings. with this new set up, im able to hold the button down when cruising out of my neighborhood to create a light load on the engine. whats important to note here is i can stay in vacuum, never hitting any kind of boost but because of the timing stragety, more heat is generated thus heating up the engine/ oil/ coolant quicker.

I will be making a seperate thread on how to buy the kit in the classified section. feel free to message me with any questions!

https://www.instagram.com/continuumlabsllc?igsh=MWphcGR0YmM3OHdvOQ==

On this Link, i have videos showing the features in action

How it started

The finale

My button of choice for now

Tephra / Spark cut patch not working

JaymeF12 — Sun, 10 May 2026 00:49:31 GMT

Recently got Tephrav3 56910309 rom and have been messing around with the launch timing and fueling maps. however i noticed in the logs that adjusting the timing and fueling does nothing. my timing stays mid to high 20s and fueling stays above 14.7 AFR. I have the factory 2 step limited set to 6k and the spark cut patch set to 4.5k.
Is there anything Im missing that those tables arent impacting my launch values? like is there a setting i need to enable in the tephra rom?

EvolutionM - Mitsubishi Lancer and Lancer Evolution Community - Evo X Engine Management / Tuning Forums

Tephra Brake Switch Patch

"Antilag" on stock ECU works!

Tephra / Spark cut patch not working