Itinerant Air-Cooled

At LBI the bus hovers right at 11.3-11.6:1 consistently.

Running around town in 3rd at 30mph (steady) and it's at high 12s - low 13.s

Getting on the throttle and it will go rich (not a lot) and then steady out to the above numbers. (around town).

Had a short freeway run and watched the gauge and it seemed to hover right around 13 - mid 13's. 4th gear 50+ mph. Again going say from 50 - 60+ and it will richen up then settle back down.

Going for another run here shortly and get some logs at different states.

So far it looks as if I might have to drop the idle (50) just a smidgen perhaps to 47-48. Rest of the carbs are at 120 main and 180 air correctors and F11 tubes.

LM-2 405 northbound from NE Sunset Blvd. to Bellevue, WA. off at 520 & 148th ave SE cruising at 55-58mph mostly. Kinda rolling hills.

Continue LM-2 reading from last:

Continue LM-2 reading:

Enter traffic in Bellevue on/off throttle a bit still 4th gear.

From the freeway on ramp signal at Sunset & 405 northbound (stopped) then 1st thru 4th gear then end log. Heavy throttle up hill.

City drive...traffic/lights (148th Ave NE - 148th Ave SE Bellevue, WA.) then some 3rd gear at 30mph on/off throttle with ease. Towards the end I believe I dropped a gears at times (traffic) easy with throttle.

Continue:

Continue:

Continue:

Continue: (last one)

Update:

I reset the carbs for LBI and glancing at the LM-2 I'm seeing 12.9-13.1-.2. (Looking as if 50 idles may be the ticket).

Taking off from a stop it will go rich to about mid-high 12's then settles around 13.2 - 13.6 or 7 (3rd gear 30-40mph).

On the freeway again at 50mph and up I'm seeing mid-high 13's to low-mid 14's (gradual rolling hills on freeway (405).

Grade on 405 southbound freeway (Kennydale Hill) I'll see high 13's to low 14-14.2 at 55mph 4th gear.

To be continued...

Looks pretty good to me.

I don't think it's to bad either. I'd like to see perhaps a smidgen richer up top when running 55+. It'll hover or flirt with low to mid 14.s up top currently. Maybe a drop on the air correctors to say 175?

Gonna need to verify my vacuum as well. Need to confirm what if any I have while cruising the freeway. Gonna buy a length of hose that will let me see my vac gauge while driving. I'll T it into the system between the distributor and T for the carbs.

72Hardtop wrote:I don't think it's to bad either. I'd like to see perhaps a smidgen richer up top when running 55+. It'll hover or flirt with low to mid 14.s up top currently. Maybe a drop on the air correctors to say 175?

Gonna need to verify my vacuum as well. Need to confirm what if any I have while cruising the freeway. Gonna buy a length of hose that will let me see my vac gauge while driving. I'll T it into the system between the distributor and T for the carbs.

I can't read the numbers on your graph. I am of no help.
Colin

Amskeptic wrote:

72Hardtop wrote:I don't think it's to bad either. I'd like to see perhaps a smidgen richer up top when running 55+. It'll hover or flirt with low to mid 14.s up top currently. Maybe a drop on the air correctors to say 175?

Gonna need to verify my vacuum as well. Need to confirm what if any I have while cruising the freeway. Gonna buy a length of hose that will let me see my vac gauge while driving. I'll T it into the system between the distributor and T for the carbs.

I can't read the numbers on your graph. I am of no help.
Colin

Sorry Colin, is it that they are to small? Clicking on the pic will expand it. The numbers on the graph at the left (right side) are the AFR #'s numbers. On bottom left to right are time. Sorry no tach set up yet.