Outer Limits 4x4 Board

has anybody running the 32/36 webber carby had a emmissions test done?

i did mine at tafe today and it was shocking...

HC 3312 ppm - unburnt fuel, should be 100- 150 ppm.
CO 0.04 % - very deadly, good
CO2 5.13% - should be 16%
O2 13.02% - should be 3 -6 %
NO 71 ppm - Ok
A/F ratio 28.59 : 1 - should be 14.7 : 1

good thing im getting a new engine very soon

But maaaaaaaate... how does it go? does it sound grouse????
























I hate carbies, can you tell?

Steve.

she doesant go too bad, bit sloow to 2 grand, nice to 6500 max out at 8500 (had to check that with a digital tacho)
sounds like a tractor. handles like a tractor, smells like a tractor.

EFI is only weeks away...

I'm surprised the system even pretended to measure an A/F of 28.59:1........

I think you might find its accuracy is very sus at that sort of reading - there just no way petrol is combustible at that ratio.

It might have been the mass of the unburnt fuel pushing the pistons down







P.S. I hate carbies too.

MightyMouse wrote:I'm surprised the system even pretended to measure an A/F of 28.59:1........

I think you might find its accuracy is very sus at that sort of reading - there just no way petrol is combustible at that ratio.

It might have been the mass of the unburnt fuel pushing the pistons down

P.S. I hate carbies too.

Yea id also like to know how ya got a reading like that. Must be an ultra wide band o2 sensor or something. Best ive seen from a wide band is 17:1 at atmosphere. Would like to know how accurate the equipment is. Try and run a comparison to a zuk the samish condition to urs but with the standard carb.
Cheers Dan

just get your carb tuned and it will get better

sounds like its way out of tune to me too.... mine ran more efficient and smelt far cleaner when i chucked the weber on. It did however ping on 92 ron fuel, so 98 ron in and it purrs beautifully.

JrZook wrote: Yea id also like to know how ya got a reading like that. Must be an ultra wide band o2 sensor or something. Best ive seen from a wide band is 17:1 at atmosphere. Would like to know how accurate the equipment is. Try and run a comparison to a zuk the samish condition to urs but with the standard carb.
Cheers Dan

i used a proper 5 gas analyser, it samples the gas mixture and can give a little printout. it is very expensive so i took the oppertunity while i had the chance.
i also have a dead miss on #3 cylinder at idle.

alien wrote:sounds like its way out of tune to me too.... mine ran more efficient and smelt far cleaner when i chucked the weber on. It did however ping on 92 ron fuel, so 98 ron in and it purrs beautifully.

Which sounds like it's way lean....


Crackatinny, are you sure the miss isn't because its sooo far beyond rich the spark is getting snuffed out?

Steve.