Launch Control ?

[jrsimon27]

Got a question i have been using launch control on a non prep track.
I have the Gt PP i set the rpms to 4500 which is the highest also use sports plus mode with traction control on. And what happens is tha the car boggs down rpms drop to like 3000rpms and almost have no wheelspin it seems i need to test this car above 4500rpms but LC wont go up anymore. Whats are your thoughts on this? Are this summer tires that sticky!? Temps here have been in the 90F.
Thanks guys.


UPDATE: My car was bogging down using LC. How i avoided this: i used LC set rpms to 4500rpms and i did PRELOAD with the clutch pedal! Amazing how this car launches.

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[GTBOB]

It's not bogging. You are spinning and the nannies are disrupting it. Launch control incorporates traction control to keep things in check.

 

[jrsimon27]

It's not bogging. You are spinning and the nannies are disrupting it. Launch control incorporates traction control to keep things in check.

I thought that rpms would hold from where you selected them.

 

[ponie1992]

I thought that rpms would hold from where you selected them.

They do until you release the clutch. That's when the nannies take over.

 

[jrsimon27]

So how do you get a faster time using lc or not using it?

 

[ponie1992]

So how do you get a faster time using lc or not using it?

I haven't been to the track yet with mine, but I've heard you can get better launches with LC and all the nannies off.

 

[LETHAL]

Not 1/4 mile but personal experience...

0-60 best w/o LC 5.0
0-60 best w/LC 4.8

Same day, same road, back to back...

It only helps if you do what you are supposed to after launch..lol

 

[alva8193]

I haven't been to the track yet with mine, but I've heard you can get better launches with LC and all the nannies off.

what are nannies, sorry for the noob question

 

[stoli]

what are nannies, sorry for the noob question

Traction control and Advance Track (aka stability control).

My experience is that launch control had too much spin at even the lowest rpm for street tires at the track and not enough rpm when on radials. All of my best times (multiple 1.6x 60') were done w/out using lc.

 

[GSLSE20B]

I just tested LC tonight . 4500 dump 2.2 60ft ... Next run 5500 TC OFF 1.59 60ft
Launch control fail

 

[jrsimon27]

Tested it the car without launch control rpms set at 3500rpms its was much faster then with launch control activated so how come this be?

 

[GoBlues38]

launch control is generally slower because the car is constantly pulling power to stop wheel spin.

There is a thread on here where a guy did a slow mo video of his launches. You can count 9 separate times where wheels spun, then had power cut to stop spin, then wheels spun, then had power cut. repeat repeat repeat. This does not make for a fast launch.

Unless you have great traction, you are better off slipping the clutch on your own and managing throttle.

 

[GoBlues38]

Tested it the car without launch control rpms set at 3500rpms its was much faster then with launch control activated so how come this be?

sorry, but based on the questions you are asking. Sounds like a driver fail.

 

[jrsimon27]

launch control is generally slower because the car is constantly pulling power to stop wheel spin.

There is a thread on here where a guy did a slow mo video of his launches. You can count 9 separate times where wheels spun, then had power cut to stop spin, then wheels spun, then had power cut. repeat repeat repeat. This does not make for a fast launch.

Unless you have great traction, you are better off slipping the clutch on your own and managing throttle.

Yep seen the video the thing is ive tested aftermarket LC and they seem to play with fuel cut never boggs down a car so thats why iam curious on what ford was thinking doing this? It was much better w/o LC also like the fact that at the set rpms it holds the revs and you can use full throttle with drag radials or slicks you could rev much higher and the car will grip

 

[jrsimon27]

sorry, but based on the questions you are asking. Sounds like a driver fail.

Trust me ive dragged race all my life and have tested lots of LC and this is the first one that revs go down from the set point and that feels like the car boggs down.

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