curtisb23

So ever sense I did my blower the car cuts the TB when I try to launch it .have no idea why it keeps doing this iv turned off alot off the tq management settings .am I missing something?

sevinn

I saw your video on fb and it sounds your foot is coming all the way off the pedal it's closing so hard.

I'm having similar issues during shifts with mine (not a blower car though) that I haven't been able to figure out...only happens on drag radials.

A couple of things I'd check are:

On fuel> cutoff,DFCO
if you're allowing ETC to control the rev limiter at all
make sure you don't have a low neutral/park/reverse limiter

On Engine>Torque Management
disable tcs brake torque management
max out the brake torque limit table
disable etc limit (shouldn't have to touch the tables if the master switch is disabled)
Max torque under traction control system maxed out
Disable powerhop

The only things I haven't played with are the fast torque exit values on mine, and I'm not sure how "oil starve" works or how it cuts power. I haven't been to the track enough to log some of these things.

Good luck hope you figure it out.

curtisb23

Hey thanks for the reply. Yea that was my video it sounds just like you said but the gas pedal was never lifted during that run it also closed on my during the launch to .
So I checked most of what u said out and today I did the brake tq an my tuned did something else .so now I just need get it back to track to see if it's going to do it again . Where are the fast tq exit values ?don't think I've seen that .

NJ_phil

Just my 2 cents:
I think it's TQM. Why not monitor torque parameters and make another pass to see what's going on before changing anything? Not sure how friendly your neighbors, but a hard launch in front of the house should show what's tripping the throttle.

Also see your IAT is pretty high. Not sure if this is contributing to the problem, but you might be getting backed off on the timing.

NJ_phil

All considered, a nice 10 second pass

curtisb23

I wasn't really aware if what to log on this track nite .but I have the channels ready now to find out what hell is up. my neighbors lol?? screw them lol. prob is this car wont hook on anything besides concrete to get it not to spin.
yeah they get up there a lil its hella hot here in md it did pull timing on that pass for the iats that tells me the pass I layed down shes got some more mhp in her once fall comes and on a cold motor trailered in

curtisb23

meh idk lol .car was doing this e/t on motor lol

NJ_phil

Your car's performance is where I want to be next year....mid-hi 10s with just bolt ons, 4:10s. That is unless you still need to turn 2 kits on, then you're kinda out of my league.

Good Luck figuring it out. Would love to see a hard pass without the launch problem. Keep me posted. thx

curtisb23

You will deff go high 10s one 342s . 410s will get u deeper .thanks man .I'll keep this posted updated also . Iv been getting some help on hpt forum the most

NJ_phil

Scratch that comment. Just looked at your MAF and spit my coffee all over the laptop screen

curtisb23

Why's that lol

NJ_phil

Just that the car is moving a lot of air. Looking at your scan right now and that car is ****ing smokin fast and my ***** ain't big enough to drive it that hard...

Saw your other thread and understand you want to figure this out fast but be careful getting a free tweek on a tune from anyone. That guy knows his **** but there are a lot of hackers out there. They don't know your car and have nothing to lose if you throw a rod through the block. Not sure what lower end you have in the motor but I'd take the revs down a bit until you figure it out and get the right tune in there and you have to start logging the knock sensor

curtisb23

Yeah I drive her hard lol.she was hookin an bookin. Yea I'm not putting anything on the ecm with out my actual tuner looking at it first .iv been sharing the stuff I'm being told to him . It's just a stock ls2 with 77k lol . Yea my tuner sent me channels to log .in through I had the knock on there but guess not

curtisb23

Don't forget it's a e85 car also

NJ_phil

Hey man. Saw your new pass and good to see the throttle is no longer slamming shut. It's hard to see where that bog is out of the hole since it bounced off the rev limiter and you still left hard (over 6k). Looks like it broke loose and you pedaled it. Did it bog when you got back in it in 1st?

Also looks like the knock sensor was going off during your burnout. Timing looked good, might be lean. Be careful man.

Drove it like you stole it. What was the ET? Looks line 9.99

curtisb23

Hey ,the car actually never boged or spun.I got off the pedal some to try an keep it from hitting the limiter but I still did by 300rpms .I slipped the **** out if the clutch that time I should of done had it out when it hit the limiter but I was very nervous it was my first legit pass sense iv put all the new stuff in lol .na add a half sec to that lol yeah idk what's going on with that .im having a problem with my flex fuel. The ethanol I put in us 85% but the sensor is only reading it as 81%

schpenxel

How do you know it's actually 85%?

And can't imagine a 4% difference making much of a difference honestly

I saw some videos on youtube where the sensors are actually measuring the amount of water in the fuel or something like that? It's been a while since I saw it

curtisb23

Because iv tested it along with alot other people.the station is very consistent actually. It never goes below 70 n we get 90 in the summer