ive searched and didnt find exactly what im looking for. the other day i had a lil fun in the freeway with my buddy and when i downshift, my buddy behind says alot of black smoke comes out. what causes this?? am i safe to drive like this?

 

You running to rich, what mods do you have?

 

I,H,E thats it

 

you're probably burning oil...
keep an eye on your oil levels

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cliffjumper2 &raquo;</TD></TR><TR><TD CLASS="quote">you're probably burning oil...
keep an eye on your oil levels</TD></TR></TABLE>

black smoke isnt usually oil...that would be a blueish tint type smoke...dark black smoke is usually a rich condition

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">

black smoke isnt usually oil...that would be a blueish tint type smoke...dark black smoke is usually a rich condition</TD></TR></TABLE>

just keep an eye on the oil. If you're not running an aftermarket/chipped ecu, and only have i/h/e then you're probably not running that rich, and if you are it's not going to be anything too problematic at this point

If you want to run a chipped ecu, then you can optimize your a/f ratio so it doesn't burn rich and eliminate the black smoke.

But I say keep an eye on your oil levels cause it's an old gsr; they tend to burn oil and blow dark smoke (black/grey)

as for the blue smoke; I thought that was usually a head gasket issue...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cliffjumper2 &raquo;</TD></TR><TR><TD CLASS="quote">
as for the blue smoke; I thought that was usually a head gasket issue...</TD></TR></TABLE>

Isn't it usually a white cloud, when the headgasket is going.

 

yes white is coolant getting into the combustion chamber

 

ok, your probly runing rich. are you throwing a cell? if a o2 sensor goes bad it can make you run very rich.

 

coudl be your cat too... the change in pressure loosen up some soot inside your pipes when you shift... or o2sensor, would cause you to run rich

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D 2da A9 &raquo;</TD></TR><TR><TD CLASS="quote">ok, your probly runing rich. are you throwing a cell? if a o2 sensor goes bad it can make you run very rich.</TD></TR></TABLE>
im not throwing any cell.. just want to know am i safe to drive like this? or should i invest in a new motor? oppinions?

 

its safe.

 

my car does it also and i also get black soot on my back bumper...i went and leaned my car out with a vafc II but i still get the soot and cloud of smoke

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SpoonSirG &raquo;</TD></TR><TR><TD CLASS="quote">my car does it also and i also get black soot on my back bumper...i went and leaned my car out with a vafc II but i still get the soot and cloud of smoke </TD></TR></TABLE>

then i think you should check your rings..

 

i plan on buying a new long block in a month...this motor is going to my friend for his DA

 

well im not sure about this but i heard if you dont beat on or really get on your car for awile the carbon and black **** can kinda build up in your exhaust. so when you do end up getting on it the quick exhaust flow can blow some of it out lookin like black smoke. just what i heard correct me if im wrong.

 

i have never heard of that