Black soot underneath exhaust tip.

[mazdasp33d]

I have a full corksport exhaust and a cpe nano inlet combo and a v103 stage 2 + sf map. I noticed today that there was like black soot coming out of the exhaust and then they was some on my driveway. I started the car after about 2 hours driving earlier today. after I came home I ran my finger around the tip and rubbed my fingers together and it was a smooth texture and dry. any ideas?

[Sport6]

Its carbon and excess fuel.

[MSMS3]

Normal. I'd be worried that you were running dangerously lean under engine load if you did not have that black soot.

When you say you have the "full" Corksport exhaust, are you saying that you have a turbo back system with bigger DP/RP? Are you catted or catless?

A black lining of the exhaust tips is normal even for the stock exhaust. A true TBE will be even more likely to look that way.

[mazdasp33d]

Normal. I'd be worried that you were running dangerously lean under engine load if you did not have that black soot.

When you say you have the "full" Corksport exhaust, are you saying that you have a turbo back system with bigger DP/RP? Are you catted or catless?

A black lining of the exhaust tips is normal even for the stock exhaust. A true TBE will be even more likely to look that way.


yea i have the full tbe. corkpsport downpipe, race pipe, and cbe. and i am aware about how rich the car runs already. just was wondering about the black soot on the driveway

[mzspd3soffl]

I have a full corksport exhaust and a cpe nano inlet combo and a v103 stage 2 + sf map. I noticed today that there was like black soot coming out of the exhaust and then they was some on my driveway. I started the car after about 2 hours driving earlier today. after I came home I ran my finger around the tip and rubbed my fingers together and it was a smooth texture and dry. any ideas?


You honestly shud of been noticed this? I have the stock exhaust and mine turns black in 3 days, after being cleaned. lol. Its jus Excess fuel like everyone esle is saying no big deal. Buh if theres alot spuring everywhere! then u got a problem.

[meicalnissyen]

You honestly shud of been noticed this? I have the stock exhaust and mine turns black in 3 days, after being cleaned. lol. Its jus Excess fuel like everyone esle is saying no big deal. Buh if theres alot spuring everywhere! then u got a problem.

I think it is a big deal

I think runnin open loop and squirtin injectors like a ron jeremy remake is a poor way to control detonation

[mazdasp33d]

You honestly shud of been noticed this? I have the stock exhaust and mine turns black in 3 days, after being cleaned. lol. Its jus Excess fuel like everyone esle is saying no big deal. Buh if theres alot spuring everywhere! then u got a problem.

when i mean underneath it means lets see, on the ground UNDERNEATH the tip. i am completely aware how these cars run rich and the tip is extremely black.

[jtspells]

(pics)

[mzspd3soffl]

(hmm)
when i mean underneath it means lets see, on the ground UNDERNEATH the tip. i am completely aware how these cars run rich and the tip is extremely black.

whoa...you mean....on the floor?..whoaaa...that dnt sounddd good (hmm)

[mazdasp33d]

yea like i started the car noticed it when i had my brother step on the gas alittle, then when i did it, i shot a flame out to wazoo

[Sport6]

yea like i started the car noticed it when i had my brother step on the gas alittle, then when i did it, i shot a flame out to wazoo

So are you running VTA then? If so that's the reason you are noticing a lot more fuel coming out of the exhaust.

[MSMS3]

yea i have the full tbe. corkpsport downpipe, race pipe, and cbe. and i am aware about how rich the car runs already. just was wondering about the black soot on the driveway

I have a catless DP/RP and get the same "soot" you describe. If it let the car sit and idle for several minutes and then "clear its throat" so to speak, by blipping the throttle, it will throw some particulate soot on the concrete a foot or so behind the exhaust tip. I consider this is to be expected and normal for a rich running turbo car with free flowing exhaust.

[mazdasp33d]

alright thanks i thought about thats what it might be from

[mountjonas]

You honestly shud of been noticed this?...

sorry, man. i can not wrap my head around what you're trying to say here.