on my 98 gsr....with a new motor in it...72,000 b18c1.......aemcai.....greddy exaust...the rear bumper of my car and wing have black ish all over it....its hard to wash off but u gotta put pressure on it? anyone know whats causing this mess? i know the exuast yeah...but it passes smog n stuff. wat else can i look for? whats wrong with it?
thanks guys.

 

Sounds like you are burning oil. I had the same issue with accumulating gunk on my bumper and it turned out it was going through a few quarts a week because of bad rings.

I would get a leakdown and compression test to confirm.

 

Iunno, I just had my engine fully rebuilt. Everything was replaced. then put a new JDM spec 4-1 header, carsound cat, and an rsr ex-mag and after 200 miles I've noticed that too. Well, maybe mine was burning everything since it was new... but iunno lol.

 

It must have been built wrong. Obviously, the rings didn't seat, so there must be a problem with the clearances, procedure putting them in, or your tuning.

There is no reason that a freshly rebuilt should smoke, so something wasn't done correctly.

 

he just answered his own question.....the carsound cat doesnt work as well as a oem cat.....

 

agreed, shmoo is a good buddy of mine and he knows what he is talken about!

 

can the rings be the culprit of burning oil on a b18c1 even when the compression is at the 210's for all 4 cylinders?

 

yes it can be

 

How so?

 

what can i do to stop this? and burning what rings?

 

Sounds like you're burning oil which is causing all the mess from your exhaust.

 

what can i do to prevent this?