TigerSharkVette

my loudmouths tend to backfire alot and i was wondering if this was common or if theres something wrong

SmokedOutZ28

iTrader: (35)

totally normal.. it happens more on the LS1's then the LT1's

TigerSharkVette

oh thanks

00RedWs6

mine does it when you let off the gas completely

TigerSharkVette

yeha thats when mine does it mostly

ItSStock00

iTrader: (11)

Thats most free flowing exhaust, espc. exhaust like Loudmouth or something with a straight through exhaust or exhaust with resonators. I personally like it.

parbreak

iTrader: (17)

My LM backfires a lot when letting off the gas too.

AaronR

iTrader: (8)

What about when starting?If its pops real loud is that a problem?

TAQuickness

iTrader: (28)

it's called RAZ. It's un-burned fuel lighting off in the pipes.

MakoLS1

its not 'back fireing", lol! Back fireing would sound like a shot gun going off.

Roarin_8

iTrader: (5)

Loudmouths pop not backfire.

LoPeY

iTrader: (6)

Mine used to do it on cold starts.

OdessitPashka

iTrader: (8)

Mine does it once I step on the gas and let go. Also, between the shifts when I race.

NateLS1

iTrader: (4)

Ill have you know mine has been doing it for over a year now, and just the other day it was a little colder than usual... It sounded like 2 shotguns going off right after each other. It's never been that loud before, me and my G/F just looked at each other wide eyed LOL.

Probably not a good thing huh?

And ya, a back fire would be going BACK through the intake no? not a good thing at all