black is not good !
07-30-2006, 01:14 AM
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black is not good !
Have one Q. I have a 2005 Cobalt SS/SC and I have noticed alot of carbon comming out of the rear of the car. I clean the tip but one day its back. I also changed the spark plugs to NGK 'S iridium bkr6eix and when I pulled the stock ones out there was carbon in there too. Now I am learning about tooners guys so dont yell . Also 2nd and mostly 3rd gear a little slugish at start when going thrue gears and feels like I have lost power since I bought it . Help me make it fast and run good I love the car love it want it to run smooth and fast what do I need to do ?
07-30-2006, 01:31 AM
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I believe this is due to our car's being "Performance Cars" they run a little rich and that is the cause of the black on the exhaust tip. If I'm mistaken someone enlighten me caus it bugs me as well
07-30-2006, 01:39 AM
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Solution To Black Spots On Bumper!!!
Guys, I have found the solution!!!! Turtle Wax's Bug and Tar Remover spray. It comes in a black spray bottle "like windex does" and all you do is spray, wait 2 min, and it wipes off like dust. I did it today and couldn't be happier. $3.88 a bottle at Wal*Mart.
07-30-2006, 01:42 AM
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Originally Posted by d_backer1
I believe this is due to our car's being "Performance Cars" they run a little rich and that is the cause of the black on the exhaust tip. If I'm mistaken someone enlighten me caus it bugs me as well
You hit it right on the dot...the car is running rich if it has black stuff coming out the exhaust. When I did the test tuning for INTENSE I turned the yellow strap black with the exhaust.
If it is white then you are running too lean.
07-30-2006, 01:59 AM
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No, running rich isn't bad. Doesn't maximize your performance but is safe for the car. Running lean is where stuff can go bad. When my car was running rich and we got the a/f balanced out I had gained 20whp in midrange...
07-31-2006, 12:11 AM
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Can adding a cold air intake like just say AEM help with shifting ? I did some messing around with the air and put a second filter on the breather and it seems like it is breathing better and shifting nicer and lower sound in exoust and almost like higher rpm range in 2nd and 3rd and up nothing really to 1st. Is that possible or is it my mind messing with me????????
07-31-2006, 02:12 AM
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Originally Posted by djin05im
Can adding a cold air intake like just say AEM help with shifting ? I did some messing around with the air and put a second filter on the breather and it seems like it is breathing better and shifting nicer and lower sound in exoust and almost like higher rpm range in 2nd and 3rd and up nothing really to 1st. Is that possible or is it my mind messing with me????????
07-31-2006, 02:20 AM
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Originally Posted by vandy0419
No, running rich isn't bad. Doesn't maximize your performance but is safe for the car. Running lean is where stuff can go bad. When my car was running rich and we got the a/f balanced out I had gained 20whp in midrange...
If your plugs get too much carbon on them, they won't fire consistantly and that is where things can go bad. Also too much carbon build up through out your engine and exhaust can lead to too much heat and engine fires.
08-01-2006, 08:05 AM
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Originally Posted by Sizzle
Running rich is not good. You can mess up a motor running too rich just as fast as you can running too lean.
If your plugs get too much carbon on them, they won't fire consistantly and that is where things can go bad. Also too much carbon build up through out your engine and exhaust can lead to too much heat and engine fires.
If your plugs get too much carbon on them, they won't fire consistantly and that is where things can go bad. Also too much carbon build up through out your engine and exhaust can lead to too much heat and engine fires.
agreed..
thats why its good to go out and give ever car you have hell every now in then.. blow out the carbon buildup
08-03-2006, 12:22 AM
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[QUOTE=Sizzle]Running rich is not good. You can mess up a motor running too rich just as fast as you can running too lean.QUOTE]
So how do you find the perfect middle ground where you don't hurt your performance and your engine? I have been running rich since I got the car. HP tune?
So how do you find the perfect middle ground where you don't hurt your performance and your engine? I have been running rich since I got the car. HP tune?
08-03-2006, 01:10 AM
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[QUOTE=Pieeater]
yeah tune... smaller pulley i believe leans it out a bit...
Originally Posted by Sizzle
Running rich is not good. You can mess up a motor running too rich just as fast as you can running too lean.QUOTE]
So how do you find the perfect middle ground where you don't hurt your performance and your engine? I have been running rich since I got the car. HP tune?
So how do you find the perfect middle ground where you don't hurt your performance and your engine? I have been running rich since I got the car. HP tune?
08-03-2006, 03:10 PM
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The reason you are running rich is because you are supercharged. If you lean out the least bit on a blown motor like ours, you start to detonate. Cobra's are the same, Ford Lightning, if you jump on it will blow black smoke. Its not runing too rich, just have to kinda keep it fed