Something real bad happened!

[Zpak]

Ok so I was nearing home from work. I came to a stop crossing a 55mph road where cross traffic doesn’t stop. The road I’m on is fairly country’ish and a good quarter mile till the next stop. So my launching pad, right? Pretty deserted so I decided to practice a good launch. Rev up to about 2000 rpm, I see around 1.5 lbs of boost so I let go. I get horrendous wheel hop for about two seconds and then she cuts out! Toast, limp mode! No dummy lights just about 10mph is all it can muster no matter what I do to the peddle. I pull to the side and shut it off then restart and it’s back to normal.


Any idea what could have happened or caused this? Obviously the car got scared of something and protected itself. But what could have happened? I did have my BDX running but I really have no idea if it was logging at the time. I pulled up whatever log was on it but it was like 300 hours. I also basically have little to no idea what any of that information means anyway so it really isn’t much help to me.


Thanks for reading and any idea or direction would be greatly appreciated.

 

[luigisho]

Did you hit rev limiter or redline? I don't own a boosted SHO, but it seems like these sort of things would trigger a programming limp default.

 

[Zpak]

Don’t believe so, I was only at about 2000 when I took off. It did never make it out of first though before it shut itself down.

 

[SM105K]

Torque management/Tq source. It was saving itself.

 

[Zpak]

So like, too much torque coupled with the nannies trying to keep the wheels from spinning= no bueno?

My biggest worry, outside the health of the car of course, was if it was a tune issue.

 

[SM105K]

Exactly.

 

[b4black]

I had the same thing happen, but even before the car launched. At about 2500 rpm. I contacted the tuner and he raised a timer (to 999 seconds) in the tune to prevent it from happening again.

 

[FiveLeeter918]

Torque management put you into limp mode. Be safe!

 

[Zpak]

Thank you all for the help.
So moving forward, as I plan a trip to US 41 drag strip in about a week what is the best course of action to avoid this from happening again in the future? I’m non PP so the traction control never really goes away. But had it been “off” do you think this wouldn’t have happened?
Launch with less RPM?
Give up seeing a 12?

 

[SM105K]

You can turn traction off, you just cant turn off advance trac.
Just pump the brakes a couple of times, then start brake boosting and launch around 2000 rpms. That should yield you better times. I would also drop your front tire pressures down to at least 30 psi. Keep your rears around 40 psi.

 

[Zpak]

Cool, thanks again. You guys are the best. I’ll keep you posted on how I do.