[Michael78971]

Originally Posted by s346k

id be finding a new tuner who knows these ecus.

i would expect MUCH more if the car is tuned with those mods. bone stock, da of ~2300’, mine went 8.2 @ 89 with a bog so bad it almost killed the car.

That’s 100% the plan. I bought the car as is, not even sure who’s tuned it. I’m in talks with a tuner right now, mostly worried about the launching problem.

[wnta1ss]

Originally Posted by Michael78971

That’s 100% the plan. I bought the car as is, not even sure who’s tuned it. I’m in talks with a tuner right now, mostly worried about the launching problem.

From what I've been seeing, not all of the pro tuners know how to fix the M6 bog in the 6g. I have seen an M6 with a supercharger that was tuned by one of the best-reputation tuners in the area, but still has the bog. Drag radials launching on the dragstrip, the bog was apparent, and the timeslip confirmed that something was going on. Hopefully you can find a tuner that knows how to fix it.

[RobbyBeefcake87]

Originally Posted by Michael78971

I bracket race the 1/8 mile for IHRA, came from a ‘19 Scat Pack Challenger with launch control, line lock, a8, etc. I’m now in an ‘18 m6 SS 1LE with radials and I’m having issues with launching. I had a hard time with the burn out but I figured out the perfect combo now, just can’t get the launch down. I was told don’t use the launch control, don’t drop the clutch, etc. I was just wondering what everyone’s personal experience is for the best possible results. Thanks in advance everyone, cheers.

What's the special burnout technique you use? I've got my launch figured out on the street, just a 2k clutch dump or even better a 3-3.5k slip nets me anywhere from 4.4 to 4.1.

I usually use sport mode double tapping tc for competative mode but lately some of my fastest launches have been with track mode and tc off. Either way you go to the engine management menu in the infotainment system and bypass the suspension system to set your suspension to touring mode for either sport or track mode imo.

If you're tuned, as has been mentioned, find a new tuner. The reputable tuners who race have the bog figured out already and have these cars leaving hard. I've seen 6k dumps on cars with bias ply tires.

[NickeyMatt1LE]

I launch mine at 6500+ to get it to leave on a 26" Hoosier. The chassis control is always trying to limit launch rpm to 5000. We have no access to the chassis and body control through HP tuners. That's the big issue and part of the bog. The SS 1LE's for some reason have more chassis torque management programed in. It takes some playing with the rev limit torque to get it to leave hard. My best 60' is 1.60, but da was 4000 that day so et was poor. Best time is 11.15@125 with a 1.72 60'(still getting the hang of a lightweight carbon clutch), 3700lb race weight, 1000' da. Lots of clutch slip. I have even completely removed the rev limit, maxed out all rev limit torque, and still get a slight timing pull when launching from high rpm. Car is headers, msd,103mm tb, roto-fab, e85.

Get a tuner that knows how to manipulate the rev limit torque and launch at least 6000 rpm with the right amount of clutch slip. The lighter the car, the easier it will leave too.

[WhitesnakeSS]

Yeah something ain't kosher there.
I have a auto but I'm running the factory run flat tires and I cant leave the line at all. I have to idle and launch by hitting the throttle partly (about 1/2) and then rolling it on to the floor. My 60 ft is always around 2.0. Its horrible !
With that said I have a CAI intake with a Tony Mamo Tb with a Legato axleback. Like I said stock tires and a humid southern Mississippi day around 92 degrees I ran a 8.07 at 92 mph. I'm hoping this spring with less humidity and cooler temps I can get into the 7's.
I know some stickier tires will but that won't happen for a little bit longer. They still have way to much meat on them.

Good luck and I hope you get her figured out. She should be a 7 second 1/8 mile car like you have her.

[RobbyBeefcake87]

Originally Posted by NickeyMatt1LE

I launch mine at 6500+ to get it to leave on a 26" Hoosier. The chassis control is always trying to limit launch rpm to 5000. We have no access to the chassis and body control through HP tuners. That's the big issue and part of the bog. The SS 1LE's for some reason have more chassis torque management programed in. It takes some playing with the rev limit torque to get it to leave hard. My best 60' is 1.60, but da was 4000 that day so et was poor. Best time is 11.15@125 with a 1.72 60'(still getting the hang of a lightweight carbon clutch), 3700lb race weight, 1000' da. Lots of clutch slip. I have even completely removed the rev limit, maxed out all rev limit torque, and still get a slight timing pull when launching from high rpm. Car is headers, msd,103mm tb, roto-fab, e85.

Get a tuner that knows how to manipulate the rev limit torque and launch at least 6000 rpm with the right amount of clutch slip. The lighter the car, the easier it will leave too.

Who's your tuner?

[NickeyMatt1LE]

Originally Posted by RobbyBeefcake87

Who's your tuner?

Tuned it myself. About a third of the cars I tune on a weekly basis are 6th gens.

[ScatPack]

My advice is to trade into an auto.

[NorCalLT1]

so all this talk about torque management tuning to prevent bogs, is this a 1LE fix or an M6 fix? i have an SS (not 1LE) and have to slip the clutch to get a decent launch. in my experience theres no way i can dump the clutch and not get tons of wheel spin, low rpms, high rpms, launch control or not.

[Michael78971]

Originally Posted by NorCalLT1

so all this talk about torque management tuning to prevent bogs, is this a 1LE fix or an M6 fix? i have an SS (not 1LE) and have to slip the clutch to get a decent launch. in my experience theres no way i can dump the clutch and not get tons of wheel spin, low rpms, high rpms, launch control or not.

I was under the impression that it was a 1LE issue, seeing as how I can’t get any wheel spin at all but that’s probably because I’m on radials. My issue is that it just wants to die off the line then slowly roll into it. I dropped my car off to my tuner yesterday so hopefully in a day or so he’ll have it figured out.

[s346k]

it’s an m6 issue.

[Omega Doom]

Originally Posted by Michael78971

Yes, American racing cat-less headers, x-pipe with factory axle-back, rotofab CAI, ethanol tuned. And the Mickey Thompson et street r drag radials.

ok well just remember EVERY car is different and driving a M6 is a challenge just keep going and try to log everything you do will help also log the weather no with that being said i hit up my 1/8 track in my 2017 2SS last december and with a cat delete and rotofab CAI and E85 tune that was not full E85 i went 3 weekends in a row with a best of 7.8@93 with a 1.8 60ft on 17" Dark Stars with 28" Hoosiers the first two weekends trying different launch techniques and tire pressure then on the 3rd weekend i went and lost my wheel key so just tried on my street tires and went 7.6@95 with a 1.7 60ft which i was told that maybe the 28s were too tall for my combo and power so like overkill and i guess they were right so now just purchased a full drag set up from VMS wheels(although 1 didnt fit) and waiting for the dust to settle with this virus to get back to the track t see what it can do im shooting for 7.4s

[Sixgunsled]

When my car was procharged making 650whp I used launch control at 3200 rpm's dumping the clutch with no issues. I also have a friend who is full bolt ons and he doesn't use launch control but dumps the clutch at 6k rpm's with no issue. We both were using hoosier bias ply tires which helped TREMENDOUSLY with getting traction. With our cars you want just a little bit of spin out of the hole and it keeps the car from bogging. I was on 15x10 rears and he was on 17x10

[RobbyBeefcake87]

Originally Posted by Sixgunsled

When my car was procharged making 650whp I used launch control at 3200 rpm's dumping the clutch with no issues. I also have a friend who is full bolt ons and he doesn't use launch control but dumps the clutch at 6k rpm's with no issue. We both were using hoosier bias ply tires which helped TREMENDOUSLY with getting traction. With our cars you want just a little bit of spin out of the hole and it keeps the car from bogging. I was on 15x10 rears and he was on 17x10

The more experience I have with the car the more I learn that a tiny bit of wheel spin almost always ends up being a good launch.