Mr C

iTrader: (2)

My cossie running closed loop MSD chip has just been MOTd, emissions passed, HCs were 152 and CO2s were just .4%- thats mega low CO2 as the limit is 3.5%!!!
Iwas wondering what HCs were ideal on this setup as 200 was the limit and I think the phase is out so over fulelling, anybody had their setup MOTd please could you post your results below??

lead_foot

iTrader: (1)

ignore

tabetha

If it were overfuelling HC would be vastly over what it is.
My results are NOT closed loop, but CO is 1.67, HC 131 at 85C, at 75C they were 3.52 and 207, at 60C they were 4.47 and 271, but this is on greys with 160,000 miles on the bottom end.
It would be interesting to see how others compared, I have closed loop on 1 of the positions but forgot to put it on for test, but will do so next time to see the difference.
tabetha

Mr C

iTrader: (2)

BTTT for more comparisons please guys

JTECH James

iTrader: (13)

my 500bhp cossie idled at 0.57% co, and 170 hc...

on msd closed loop software running 83ib injectors, twice the size of greys.

7.2:1, funky head and wild cams aswell

james kiely

iTrader: (5)

mr c on my saff 380 bhpon msd closed loop with 55ilb siemens,etc

engine temp;87deg
low idle ;890ppm
co ;0.22vol%
hc ;81ppm

cheers james