Does any body else get this And no it aint got anti lag
Dont do it often but every now and then i here it when i change gear and back off the gas it does it some times
Any advise on this plz

 

Does not sound like a big issue just a bit of unburned fuel - get the fueling checked.

 

probably only happens when you have been booting it.

the exhaust must be red hot to light the unburnt fuel inside the ex.

happens to most cars.

i had big 'boooom!' out of my old car sometimes.

 

Thanks for that Simon and Dave im just waiting till i can get a day off to get it to Engine Advantages to have it Power Run and check every things set up ok
Does drive so well no misfires etc whats the odd POP sounds well

 

And there is a lot of black dusty stuff in the tail pipe i notice it on the rag when i polish it

 

As long as you have got no det. you should be fine, make sure you post your power figures!

 

What do you mean by det mate

 

Detonation. - not good! If the fueling and boost are not correctly set and the plugs are not doing their job then the car will start pinking (detonating) and this can lead to piston meltdown!

 

It deffo aint pinking mate and i only ever put optimax in but i will get him to check things before it goes on rollers

 

the black dusty stuff is because slightly overfueling.

its soot from the fuel getting burnt.

most cossies are like this, better to overfuel a bit than under fuel.

 

Sounds right to me mate Cheers

 

no problem at all.

 

Sounds like you may have a leak in your exhaust there m8! As the other guys gave said, most of the cossies are overfueled anyway and when there is a leak in your exhaust, air can get into the system and you will ignite the unburnt fuel in the exhaust, hense the popping.

I had the same problem on 2 of my cars, the leaks on my mine were where the downpipe connects to rest of the system.

Hope this helps!

 

Thanks mate ill check it out you never no