I was racing my car two nights ago and my friend behind me said that when I was shifting gears a puff of black smoke came out of my exhaust. I was spraying a 75 shot my Im pretty sure no smoke comes out when i am N/A. Is this something I should be concerned with?
I thinking that I may just be running rich when on spray, but I not sure. If this is a problem I would like to find out before a problem occurs.
Any thoughts? Thanks

 

Your not the only one with concerns

That night was going awsome till my car started acting up...witch i now find out was becuase i was running on only 5 cylinders Dont ask


Personally i never saw the black smoke come out your car but if it did, i'll tell u its not happing every time. You probly got a little back fire on a late shift. I wouldn’t be too worried about it , until you start seeing white smoke come out.

 

Both my friend and mine have been doing that for the last year. We have no clue what it could be?

 

probably running rich in between shifts. Fuel is probably still dumped a
little bit after the solenoids close thats all.