loug bang... is it the exhaust ?

[azazel61]

I was just driving home and heard a loud bang like something exploding. I'm not sure if it was the exhaust backfiring or what but I felt it inside the car. I've had this happen once before about a month or so ago. Is my car misfiring?

[akeenan]

backfire?...

[WazR32GTSt]

sounds like backfire

or maybe the air intake was comletely blocked (via plastic bag or something) and no air got in??

need more deatils...

car running ok before/after?

engine lose power completely? or was the engine unaffected?

Waz.

[azazel61]

car was running fine and engine was unaffected same as the last time it happened. it was so loud though it sounded like a gunshot

[3R1K]

same thing happen to me after i got my exhaust,

people said it's back fire from running rich

[Ash]

haha, yeah gota love backfire, mine did it in the m2 tunnel at 7k. ***ing loud. all the trafic behind me dropped well back.

there was a beautiful fame too. (i think)

[Anquetil]

Mine backfires all the time no matter what gear or rev range, i've been told as already mentioned its probably running rich.

Better rich than lean though, I still get 450 a tank so i'm not complaining. With a stock ECU not much you can do except get a S-AFC if its rich.

[3R1K]

lol lucky bastard

I can only get 350 km full tank

[Guest RedLineGTR]

Oh nice figures 450km a tank nice...would be something to do with the 95" ECU they tend to be abit better tuned than the other ones.

[Pekatu]

wow i get about 300k's per tank, driving sedatly

[Anquetil]

Yeah I think I have the freak '1.5' version R33 people talk about.

You guys getting 300/350, do you have heavy mods though?

[3R1K]

Lol mine r34 , stock only exhaust

[wrxhoon]

shane , how much fuel do u put in after 450 k's thats more important than the ks u get . i can get up to 450 on the r33 gtr ( exhaust 1 bar boost ) but usualy around 380 -400 but thats dry tank 62-65 lts to fill .

[streamer]

erik:

if im not mistaken, yr car is stock.

you just put on an apexi air filter and your full exhaust system and not done any tuning on it yet or s-afc....means, yr running LEAN...thats e prob i had with mine...u haf too much air flow and not enuff fuel...too lean

not rich

[azazel61]

i used to get 400km per 60 litres but a few tanks ago i decided to add a bottle of that valvoline injector cleaner b4 i refilled and now i get 450km.... go figure... never thought that stuff actually did anything

[Anquetil]

Originally posted by wrxhoon

shane , how much fuel do u put in after 450 k's  thats more important than the ks u get . i can get up to 450 on the r33 gtr ( exhaust 1 bar boost ) but usualy around 380 -400 but thats dry tank  62-65 lts to fill .

I'm pretty sure i've never put in over 50 litres at the pump.

On average I stretch it out to 400-420 before refilling, so 450 is an estimate about hom much I would get, probably a tad more?

I've yet to see my fuel warning light.

Judging by my refill levels I feel I could stretch it out more.

[Anquetil]

Also, an important note is that 90% of my driving is highway.

[NIZR34GTT]

erictufa gee wiz I have an R34 and I get driving it hard about 500 out of a tank.I only have acouple of mods, a pod 3" stainless exhaust ,BOV and running 1 bar boost.

[3R1K]

lol, sweet r34 there man

I can get 350 i think 50 litre, got pod 3" full turbo back and running so rich now

[Evil]

I have a 3" cat back and a K & N high flow filter (not pod) and I get the odd backfire. When I go up a hill in low gear and change at the peak it'll pop. But when I drive anywhere else even under hard acceleration it won't do it. This all started when I put the exhaust in. Oh yeah I still get 400-450 k's a tank (BP Ultimate).