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TBI E-test results
Posted: Tue Jun 20, 2017 12:53 pm
by FSJ Guy
Passed Colorado emissions again. YAY!!!!
This is a 1987, with stock AMC 360 with GM TBI with timing control.
IM240 test. On the dyno.
HC GPM: 1.5900, Limit: 3.5000
CO GPM 15.9949, Limit: 30.0000
NOx GPM: 4.0597, Limit: 5.5000
CO2 GPM: 579.4088 (Why they measure this, I don't know....)
I'm guessing the high NOx is due to no EGR.
Re: TBI E-test results
Posted: Tue Jun 20, 2017 1:16 pm
by AwesomeJ10
congrats buddy! I bet you are right in that if you had an EGR (which I think you are supposed too...) the NOx would be much lower.
Re: TBI E-test results
Posted: Tue Jun 20, 2017 8:57 pm
by shimniok
Nice!! Congrats. They run clean with TBI and working emissions gear. Go figure. Lol
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Re: TBI E-test results
Posted: Wed Jun 21, 2017 6:45 pm
by Nikkormat
Congrats Ethan, another year of limo fun!
For the sake of this thread, you don't HAVE to have EFI for good E-Test numbers. These are my IM-240 results from the old 360 and stock carb.
HC: 0.2611
CO: 10.4175
CO2: 158.9269
NOx: 0.2081
BUT that was with a fresh cat and EGR. I'll bet that Ethan's numbers would beat mine under the same conditions on his TBI tune!
Re: TBI E-test results
Posted: Wed Jun 21, 2017 8:34 pm
by FSJ Guy
I got a fast pass on my last Jeep. The had a 401 and the non-EGR performer intake. I don't know why I can't hit those numbers with this one. Maybe because it was a fresh rebuild... Who knows...
Re: TBI E-test results
Posted: Sat Jul 08, 2017 8:03 pm
by shimniok
The new cat makes a massive difference per my experience and the above.
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