Hey guys, just got my new SS tuned Sunday and was just wondering if anyone else has gotten their launch control adjusted with hp tuners. I read that you could adjust it with Trifecta but didn't know hp tuners could control it as well. Anyway, it is set at 3k and it still spins a bit but I think with some sticky tires I might actually be able to get a decent launch out of it!

 

He didn't adjust your launch control. He only adjusted your neutral rev limiter.

 

yeah, you set the rev limiter to whateever you want in neutral. mines about 3k too. Works good.

 

Does netural include in first gear with the clutch depressed? so when you dump the clutch the limiter switches to your regular redline?

 

Any gear with the clutch depressed will trigger the desired neutral rev limit. Once the vehicle starts to move the ecm will move onto whatever commanded rev limit is set for any given gear you are in

 

Wouldnt that cause your reves to drop when you clutch at WOT in say.. 2nd gear plus?

 

Hmm never knew about that before haha. Learn something new every day!

 

Absolutely not. If there is a signal from the vss sensor that the vehicle is moving at all then the ecm goes by specific commanded gear rev limites.

 

Never knew this. Thanks for the info, I'm going to try this

 

I tried this before and it seems pretty pointless, it doesn't create any load on the engine. You plant the pedal to the floor but in hptuners you can see the pedal is only 30% open or so to keep your desired rpm steady, its no different than you actually holding the pedal down a bit to keep the rpm steady.

 

execpt you dont have to try and balance at your desired RPM. it will work for the better at the track.

 

This

interesting. getting hp tuned in the spring and this will be a nice feature.

 

As it was explained to me - when you're at the track if you only have to manage your left foot and not both off the start you're more likely to have consistent launches. Makes sense to me.

 

You actually have the most control of all of us. With the e67 you have the option of setting up your rev limiter control as either throttle limited, spark limited, fuel cut limited or some combination there of. You can even have more fun with it than that if you really wanted.. The e69 we can only tell it when to cut and in what gear.

 

Playing with the 1st gear max torque setting will give you more consistent launches than this half assed launch control.

 

well spark limited would be best, no?

either way good to know if i do ever decide to get tuned!

 

I added the Launch Control & NLS to my LS3. Nice to have all the spark & fuel limit tables. lol.

Yes.

 

If nothing else I definitely think this will help with consistent launches at the track. Find what rpm works with your set up and keep it right where you need it every time.

 

I saw the different cut off methods and was wondering about this. Should I just play around to see what I like best? Also would reducing the hysteresis to something close say 25 rpms to hurt anything?

 

im just goin to run a N2mb 2step.

 

Its not pointless I have the exact same launch control settings as the OP since I too was tuned by Nick. It will bog out if you drop the clutch yes, so you left off of it a little slower to get your ideal launch. it works! And since the load isnt clutch catastrophic at that rpm, you can do it without too much risk to the clutch.

Works well on the street anyway lol.

 

I think I'm gonna have him drop mine down a little bit for the street, at least until I get some better tires lol. I think 2.6k would be ideal for my current set up.

 

I was wondering this too...i dont think it would hurt anything at all.