Backfire When Going Flat Out.

[hkrupt]

Hey yall, I have a quick question and I'm hoping its an easy answer. iv had the ba flash tuned and few other things done, recently had the trans rebuilt. But now when I stick the boot into it the car backfires and sends a HUGE smoke screen out the rear, Do I just need a new tune? or is there something more evil going on?

[Zerosignal]

Custom tuned or Generic? Does it still do it when running on stock tune?

[EvilDaifu]

I'd be taking it to a tuner for a service straight away I use Pit Lane in Frankston

[hkrupt]

Custom tuned or Generic? Does it still do it when running on stock tune?

its a custom tune, not sure if it does it on stock tune, as I'm kind of scared to floor it again.. lol..

[hkrupt]

I'd be taking it to a tuner for a service straight away I use Pit Lane in Frankston

Thanx bro il look em up, they nice and close for me.

[Weaponxr]

Hi,

Most likley what the problem is will be the spark plugs. As the boost would have been set a couple more PSI the spark plugs need to be regapped from 1.1mm to 0.75mm or 0.8mm.

It happens on a few cars when you raise boost, Skylines do it also and they have to use a hotter or colder spark plug.

The tuning shops usually charge about $150 to regap the plugs but if you are handy you can do it yourself.

[Rosie]

You get the same symptom if the Plugs are stuffed as well!