Fumes With no cats?
#4
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a little smell...but in the car no not really, hell i run TD's no cats, dumped and window's down 100% of the time (no ac)
no passenger female/male has ever complained about it smelling.
Chad
no passenger female/male has ever complained about it smelling.
Chad
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Mine is noticable with the windows down sitting still. But I also have cam/heads. My AFR at idle is 14.63, though it might actually be a little richer due to cam inefficiency at idle.
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I think this is all relative to cam size and proper tuning. I'm sorry, but everyone didn't just go around reeking of exhaust fumes all day prior to 1974. With a small cam and good tuning, there should be no fuel smell. Toss in a big overlap cam, and the results could be lots of idle fuel smell.
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It doesn't smell bad at all. I had lt's dumped duals and no cats and it wasn't bad at all. But now that i have a cam it stinks prettyy bad. But i love the smell. Its only strong at idle
#14
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My 2001 ZO6 with TPIS headers w/o cats had a bad exhaust smell mostly at idle. I had several cams that all needed 30-40* base idle timing. Now with the LG G5X3 114 LSA cam, I set the idle timing down to 16*, and the smell is almost gone. The bad exhaust oder is caused by nitrogen oxides (NOx) that are increased by a hotter combustion (over advanced spark timing)
This cam is the most driveable cam that has been installed so far! Prior cams were 234/228/.574/.572/113 LSA & 229/242/.631/.631/114 LSA. I also have LPE ported LS6 heads with 2.02/1.57 valves, milled to 62cc, and a Mamofied 90/90 intake.
Russ Kemp
This cam is the most driveable cam that has been installed so far! Prior cams were 234/228/.574/.572/113 LSA & 229/242/.631/.631/114 LSA. I also have LPE ported LS6 heads with 2.02/1.57 valves, milled to 62cc, and a Mamofied 90/90 intake.
Russ Kemp
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i just installed my LT's and y pipe. and i can smell a little out side the car. but i have never smelled it in the car. or too the point where i was not able to stand it.