how i cheated smog
#1
how i cheated smog
well i went to smog my white hatchback cuz im gonna sell it, and the first time i went in i failed because i got 0 ignition timing, and i think the cat was old
NO max @ 15mph = 859, i got 570
NO max at 25mph, 798, i got 588
CO max 15mph = 0.84, i got .17
CO @ 25mph .73 i got .09
HC max @ 15mph 138, i got 81
HC max at 25mph 112, i got 43
so if i just changed the timing i think it would have raised the numbers and i would failed, so what i did was take a obd2 cat, and my old exhaust off my si with 145k on it, and i cut the exhaust with a chop saw and welded the obd2 cat in and plugged up the bung so basically a double cat exhaust... heres the numbers
no @ 15= 4
no@ 25= 257
CO @ 15= .03
co @ 25= .00
HC @ 15= 10
HC @ 25= 5
wayyyyyy down from what i had it at, and timing was at 15degrees.
stupid CA smog, i cheated them good.. and btw this engine has 210k on it, came from florida to northern CA, it will be for sale shortly for about 2500 obo
NO max @ 15mph = 859, i got 570
NO max at 25mph, 798, i got 588
CO max 15mph = 0.84, i got .17
CO @ 25mph .73 i got .09
HC max @ 15mph 138, i got 81
HC max at 25mph 112, i got 43
so if i just changed the timing i think it would have raised the numbers and i would failed, so what i did was take a obd2 cat, and my old exhaust off my si with 145k on it, and i cut the exhaust with a chop saw and welded the obd2 cat in and plugged up the bung so basically a double cat exhaust... heres the numbers
no @ 15= 4
no@ 25= 257
CO @ 15= .03
co @ 25= .00
HC @ 15= 10
HC @ 25= 5
wayyyyyy down from what i had it at, and timing was at 15degrees.
stupid CA smog, i cheated them good.. and btw this engine has 210k on it, came from florida to northern CA, it will be for sale shortly for about 2500 obo
#4
Re: how i cheated smog
i passed with 2 cat, down scaled 450 with UB and stock timing and a empty intake box. LOL
NOx are a little higher then normal tho...
BTW...
just did a smong on a 96 maxima i just bought and the Co level is at ZERO WTF??
NOx are a little higher then normal tho...
BTW...
just did a smong on a 96 maxima i just bought and the Co level is at ZERO WTF??
#9
Re: how i cheated smog
Originally Posted by CRXDrew
Only 2 cats? Don't some cars have like 4? lol
Oh and you wanna know how to really cheat the smog... not take it. All my hondas, I have never smoged one, not one.
Oh and using two cats ain't nothin' new. People have been doing that for years and years. I have a spare hf mani/cat/dp setup laying around just in case I decide I want to smog my car(s).
#10
Re: how i cheated smog
Just move to MN, no emissions. Stealthmode was smart enough to join us, you can do anything to your car as long as it has 2 license plates with current tabs and a reasonable tint. Actually I did get pulled over for my exhaust falling off, but that was in an uber-rich community.
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12-03-2005 12:23 AM