I've been having this junk on my bumper now ever since I've been spraying nitrous... I haven't sprayed for prolly 2-3 weeks, and it still does this. Most of it washes off, but some of it still stays there. Question is... why is it doing this when I haven't sprayed for several weeks?

Would 2 step colder plugs on a motor that hasn't been sprayed for a couple weeks do that?


Modified by Mario BA4 at 11:09 PM 7/26/2004

 

i believe black smoke comes from running rich. but then again my car burns oil and my bumper ends up like that after i push it

 

You *could* be burning a little oil, or just overfueling the engine. It's also possible the ignition system is faulty, sending fuel into the exhaust.

By the way: NICE car! I love those Preludes! Does it have the B20A or A20A?

EDIT: Also, DTM-style exhaust tips worsens the problem, as those lead the exhaust right into the bumper.

 

my bumper is like that from running rich ..my motor doesnt consume any oil..

 

My friends disgustingly rich Eclipse has a bumper like that. Actually, his is a lot worse.

 

Thanks guys... I guess once I turbo, the car will be tuned anyway so I should be safe to go correct?

Oyvind Ryeng -- thanks man! It's a JDM b20a under the hood. Turbo in about a week.