bbigman2000

Stu,

advice again my man !!

Gave my car a huge bootful in first gear, it let out a monster back fire, and a cloud of dark smoke, very dark grey, I assume its overfuelling is it ?

cheers guys

SPADGE

Sounds like it hit the limiter?

POPEYE

could be right jules

vroooom ptssssh

sometimes pops a flame if u jus touch the limmiter too, sounds like it to me aswell!

bbigman2000

nah lads she was only at 4250rpm, i just floored it and dumped the clutch, spadge me paddle is holding up

i been in the limiter a lot though, this was a bigger backfire

dannyblackpool

limiter

bbigman2000

maybe ive got a air leak somewhere ?

shes no down on grunt though

vroooom ptssssh

maybe fuel surge then as u backed off

bbigman2000

nah mate i never backed off, it was like having anti lag, the locals were well impressed

XRTypeRS

Spark blow out?

bbigman2000

hmm, mate i had the plugs out they look OLD, you know what I think you may have hit the nail on the head, spark blew out, and all that fuel still pumping in, is that the idea, hence the dark smoke

SPADGE

Of course it is see looks can be decieving

Firestarter

Yo big boy............ how much fuel is in it Glen, it used to do that when it was low on fuel mate

bbigman2000

rison:

Turbo lag

I would say you had less than half a tank of fuel and when you launched it the fuel surged to the back and it sucked up a bit of air causing it to backfire
mine does it a lot it scares the hell out of people

Dave.

bbigman2000

ahhhh yes indeed mate, under quarter of a tank actually, thanks for that i bet yer spot on

Firestarter

yup, thats it, it's the same when you eat fast & swallow air, it comes out the other end with surprising results

Firestarter

that'll be it mate, I know from experience!

bbigman2000

class luvin it

ballin

iTrader: (1)

interesting, hadnt heard of that b4!

bbigman2000

maybe only happens with uprated fuel pumps mate, as there trying to suck up a lot more fuel

Anonymous

Mine does this mate maybe your hittin over boost ??? if i cain mine out of a bend she seems to do this also lets out a mighty bang and off she goes lol.Get it set up proper and it might not do it

Anonymous

LOL i should of read the post better this defo sounds like it could be the culprit low fuel but mine also does it with full tank Wierd

Billabong

With the Bosh uprated pump in particular (but generally goes for all fuel inj') you should keep more than 1/4 tank in there - were you cornering by any chance?

bbigman2000

hi bud, i shouldnt be shes not boosting that hign, ive got a gauge and also the chip should over ride the ecu if im not mistaken

but yes your right if i get her set up proper it should stop this, will try plugs, but in honesty this is first time and she could have sucked up some air

bbigman2000

mate i was well low on fuel, nah on a straight, but i just floored it in first LOL would have sent all fuel to the back of the tank, also I probably did blow a plug out, should feed in the boost more progressivley

Billabong

Glenn, do you know if yours is a Bosh pump? - they have a larger pickup area and it doesn't touch the bottom of the tank like the std Ford one does, hence needing a refill once you get to 1/4 tank, otherwise you get what you got .

Stu @ M Developments

iTrader: (12)

Doing this repeatedly is Baaaaad for teh engine so learn what causes it on your vehicle and fix or avoid doin it

Billabong

I quite agree, hence mine gets filled up when approaching 1/4 tank, and I don't bounce off my limiter (on purpose )

Turbo lag

mine has the bosh pump and it is a pain in the arse on round abouts poping and banging

Dave.