The motor is a 406, 11.0-1 comp., Comp solid roller, Brodix RR200 heads, MiniRam, 58mm TB, 36# inj, Hooker Super Comps and dual 3" catco cats.

Last week I had my emissions tested here in Ohio at the E-Check.

HC - 78.9 vs. limit of 1.44 pass
CO- 1.63 vs. limit of 0.92 Fail
NO - 141.3 vs. limit if 1014.0 pass

A reply by Red Devil in some earlier post about failed emissions helped me out. Basically the motor was running well just on the rich side. I have a DFI so pulling fuel out in the desired rpm was not a problem.

Yesterday I retested.

HC - 1.35.5 vs. limit of 1.44 pass
CO - 0.05 vs. limit of 0.92 pass
NO - 199.5 vs. limit of 1014.0 pass

I believe that the HC went up due to the fact that I pulled too much fuel out and it had a periodic lean miss. The good news is that it passed and I'm clear for the next 2 years.

www.geocities.com/dzperf

 

Mine passed Echeck to even though my 406 is alot milder than yours. I built it still wanting to pass emissions. I had to put a cat on, temporary put my AIR back on(and backed the timing off) and passed with flying colors after I failed miserably the first time.

 

you're my hero makes me less afraid of the evil emissions people as i beef my 383 up

 

Let this be a lesson to all that think big cams can't pass emissions. With cats and tuning/tricks it will pass.

 

hey wackytower im from parma hts also. i have a 91 Z its burgundy just put vortec heads and lt4 hotcam in. Your car looks good, I may need your help to have mine pass emmisions next year. Right now Im tring to get my tuning in but its a pain in the a$$

 

A bunch of local guys(NE Ohio) post at 3rdgen under the Midwest section

 

Whats sad is my 383 motor passed cleaner then my 99 GP GT. Thanks to 89GTA383 for doing my chip. I'm still working out my Y pipe issues. From then on. I'll be working with the chip. All I had was a cat. I forgot to hook up my EGR and I have no AIR anymore or anything.