Today I did my first NLS when I could hear it.....just did a second to third so I wasn't going to fast.
Now catless Hahn BTW.
I had 5 pops come out......I NLS at about 5800 to 6000
I was nowhere near redline...
Previous to my GMS1 I never completed the NLS correctly because I kept hitting rev limiter, because I thought I had to be @ redline...
anyways I did it right but 5 pops.....

GMS1, Hahn catless......normal? misfire?

thanx guys

 

i have a three inch straight pipe and i just get one pop when i shift. i just thought it was due to the lack of back pressure or my buddy said burning excess fuel

 

theysay 2 pops on stock exhaust..........
2 cats,
none = 5 pops?
yah the unburnt feul

 

Your tune should be modified to have fueling stop adjusting for EGR temps and all that stuff since you no longer have a cat. But yes pops are normal during NLS, it's kind of similar to anti-lag used in race cars.

 

If its 5 rapid pop, like a machine gun, then yeah its misfire id say, i had that after i got my tune, when weather is too cold

It also happened that the CEL flashed 3-4 times after those pop, and then everything came back to normal...

Now that weather is warmer, it work better, also make sure your car is fully warm before doing it

Thats what seem to work with mine...

edit: if what you describe look like this:
http://www.youtube.com/watch?v=el8_P...eature=channel

watch from 0:12 on the 2nd gear shift you can hear it...

 

Told ya dude, when you went past me (man it was nice of me to slow down when I knew what you were doing) I heard 2 pops and a couple gurgles. I had to listen carefully over the growl of my tires (you know you're jealous mr stock contis ) but it sounded fine to me. No misfire, nothing out of the ordinary .

 

car was as hot as it could get....
the pops were pretty fast, but not rerally fast....not like a 8 shot per second machine gun sound....but they came pretty qwik with no CEL's.
i was expecting 2 or 3

 

did you feel a loss of power?? if so it was a misfire if not id say go do it again and if it pops again then its cuz you have no cat.

 

i will do it again soon and see

 

I usually get 1 to 2 pops. More than that and I screwed up

 

It was a misfire. There should only be ONE solid, loud pop if you NLS'ed correctly.

 

I get 0 pop's... I also NLS extremely quickly

Stock

 

Yup 5 pops means youre not doing it fast enough.

 

Can we get video or sound clips of your exhaust?

 

Yeah on stock it won't make any noise really. Even on my catless it doesn't pop all the time, just most of the time.

 

huh
common understanding Im doing it wrong.
Well I got 2 on the highway according to Perma, when I was givin it and NLS right infront of him.

SO I will go again, If I get tons of pops Im done with the NLS

 

[QUOTE=G Speed;4851243]I get 0 pop's... I also NLS extremely quickly


same it never pops any more......Shift really fast!!!
try to NLS at 6100 rpm to

 

im not sure where my limit is now that im GMS1
but I will try it alil higher and faster...
after this snow and cold stuff goes away

 

I get the pops.. its normal. Look at the youtube vid of GM testing the launch control and NLS.

 

6500rpm is the rev limit

 

Car has been out for 3 years now and people still are confused about no lift shift.



Done right it should be one pop.

Not 5

Not 3

Not 198432732846873264

1.

 

Mine used to pop a lot when I started to use NLS. I dont get any pops anymore :/ I miss them

LOL dude I forgot the rev limit was at that...I've been nls'ing to early...no wonder it bogs some...bah I'll try it today at like 6200.

 

maybe when i used to NLS and get no pops I was doing it write.....dunno
I will post reasults by Monday here.
then you guys can tell me how bad of a driver I am etc.

 

well seems like no pops is nls'ing to early? or its broken in and working. Depends if you bog down any.

multiple pops for sure mean you didnt do it right.

 

good answer.
still I will post again soon.
I don t like to NLS, at all.....but I want to know how to, in the cas eI need to go to the track and blow the doors off some v-8's