While driving down the interstate and having a mustang trying to pick on me, i took off in 3rd gear while tune was engaged. NLS'd to 4th gear and had a misfire cel, it blinked multiple times real fast. But i dont understand why it did. The car was warmed up, i checked all the grounds on the coils and they seemed tightened and the plugs are good. i just dont understand why it happened. Any ideas?

 

mine does this some times when i drive easy for a couple of weeks it did it 2 times in a row the other night blew a lot of smoke the first time second time not as much and the 3rd successful NLS was pretty clean.
I think my problem was it was loaded up kinda like a diesel gets atleast thats my guess

 

Mine backfires every NLS I do, haven't had a CEL yet. Seems normal to me.

 

hmmmm sounds like my problem ive yet to figure it out but i dont nls it does it anything over 6k rpm

 

what is your rev limit set at?

 

its gonna happen on the tune... usually thats where peoples transmissions blow up so i would watch it...

 

Welcome to the Trifecta tune! It's a great tune, but don't NLS. My car throws a CEL and misfires every time I try it. I have worked with Vince quiet a bit to sort it out, but he can't seem to be able to fix it. I just save my car the trouble and I just don't do it anymore. Winning a race isn't really worth tearing my car to **** anyways.

 

yeah pretty much once you are tuned you will throw a code more times than none, i have gotten to do a few NLS from 3rd to 4th without throwing anything but then i have done some and gotten the code i rarely even do it now anyways if you work on faster shifts then you should be ok

 

welcome to the world of our cars. i almost never even try to NLS anymore for that very reason

 

you didnt do it fast enough then.

 

^^^ This

Dont know why so many ppl have trouble with NLS. Honestly I believe its in the execution of it. When you were stock the car took longer to build power and thus redline was longer. While on the tune you reach redline alot faster and thus you have to be quicker and more precise. Also with all the power comes wheel spin mostly in second at WOT and if you try an NLS while your wheels are spinning fast as ****, then thats a no no too. In the OPs case though, sounds like he got a clean NLS so could be a random missfire. Ive been trifecta tuned forever, Im fully bolted and never had any issues with NLS. Ive got 25k on the odo and my tranny is perfect. Ive maybe gotten a CEL once or twice from a botched NLS but thats it. Ive got my redline at 6500.

 

ya I was stock and nls'd, I am now on gmstage 1 and nls. The times it doesnt work for me:

Car is cold still.
Didn't do the shift fast enough
miss shifted or hit the gate
Did it too early
Too late!!! this is the biggest issue I think. You nls too late, bounce the rev limiter and it just CEL and miss fires like a ****. I've had my car go limp mode on me and had to restart while coasting because of this. You need to just do it better, it takes practice. idk what your rev limit is, but stock you almost want to do it AT 6k so by the time you complete the nls you are at or just under the rev limit.

 

see i was thinking it was just me since i have been able to do it without throwing the code since tuned
but yeah it seems like if the planets aren't aligned just right you will backfire lol

 

man after reading all the threads about the NLS it seems like it's just absolutely not worth it at all. I mean does it honestly make that much of a difference? Not being an ass at all, I just drive an sc so I'm curious cause I want to get a tc someday. Not saying I won't ever try it when the time comes, but it just really doesn't seem worth it.

 

i mean if you are a slow shifter then i guess it helps but if you can shift fast enough then not really i really don't notice that big of a difference

 

it only takes a blink of an eye to shift. I mean maybe it's just me, but that seems like it'd be quite rough on the car and would be such a small gain for quite the price to pay. There's really no race worth a transmission unless big $ is involved which 9/10 is not the case lol. Although I will say this, the NLS sounds pretty badass going from 3rd to 4th lol.

 

yeah i agree i only did it when i first got car b/c it was cool but even still i only did nls 3rd to 4th but now since it isn't that consistent i have just learned how to shift faster

 

Id like to get the technical specs for the NLS algorythm so we can see specifically what its controlling.

 

nls 1-2 doesnt seem worth it, but every gear after is.... I tried it and loved it

 

I have used the NLS a few times both with my tune to the stock setting, and in the 'regular' Trifecta setting. There is no way in hell I would NLS with the infiniboost, even knowing the fact that I know how to NLS and have never messed up a shift doing it. Just shift fast and don't worry about it the turbo spools back up fast enough.

 

On the SS/TC it makes a difference. You can feel the car slow down for a sec then ramp up the turbo again on a shitft. Doesnt matter how fast you do it. You lift foot of gas....all your boost just goes out the window. On an NLS theres no LAG whatsoever. You just keep going and building speed as if you were on an auto tranny lol

That being said, I only do it once in a while when Im on a run or something. I dont do it all day every day.

 

I understand how it works and feels, I have done it plenty of times. My point is that with the infiniboost tune on the car you are putting alot more stress on the car if you mess up that NLS then if you did on the stock tune. Yes, there is a lag between shifts, but it is so small on a stock turbo that frankly the risk is not worth it on the infiniboost tune.

 

Whos on the infiniboost tune? I dont even think Vince calls it that anymore. you could have an 'infiniboost' tune and be at 22psi. Im at 24psi. If you are above that then, yeah, its a bad idea cause its too much heat being produced by the turbo for the stock pistons to handle, especially during an NLS, and, over time, you can f-up a piston real bad.

Im not saying everyone should go out and NLS all the time. If you tuned your car then you know the consequences of taking the car further than what the maker intended for it, wether the engine can handle it or not. If you choose to stop NLS then, okay, but let the person decide for themselves.

Im only posting from my experience with NLS while being tuned and, obviously, there are others like me that have no issues doing it too. If your smart about it and your careful when and how you NLS then it can be safe.

 

Like I said before the only issue I had is when I dont use it for a long time other than that no problems I even 1-2 nls i have almost 50k on the car now its still ok

 

ur nls was probably off by a little bit, its happened to me when i do it wrong.