Thanks Matt. I have 18° at the crank with timing light at idle. Then 36° all in with timing light about 2400 ish IIRC. The bottom chart shows all in by 1750 ish. So i am in slower than that. That is super fast!
Stop in for a cup of coffee
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So, now I question, was it the advance causing the issue and now with it disconnected, it is better, or the added air? I wish I had an O2 sensor to have some idea where I am at. Reading plugs I guess
That's a Mopar Performance Race Distributor (tach drive).
I drove that on the street for a while.
No problem really, but did hurt milage.
Also a little quirk in the design seems to have been a goal priority of easy starting when hot.
So on the engine I could never measure initial. Best I could do was measure around 800 to 1000 rpm. But advance began at something like 500 rpm as verified when measured on the Sun machine.
If I was to set one up today, I'd set it up for a more stable idle.
We're on the same page.
IIRC you tested with the vac advance disconnected and the 1/8" diameter bleed into the baseplate.
yes?
It certainly won't hurt to have a dedicated location to access manifold vacuum for measurements or any other purpose.
I've not worked with a tunnel ram so don't know if there are any special considerations for placement.
I've not worked with a tunnel ram so don't know if there are any special considerations for placement.
We just chatted. Thinking adding a bit more total will help. Really think it is really rich though.
I forget, whats the idle rpm?
Yes, I have tested with vac adv disconnected and 1 bleed open, and with 2 bleeds open. With it disconnected and 2 bleeds open, it ran the best it ever has.
about 1000 in park and 8-900 in gear, that is where it seems happiest
Morning fellers. overcast and icky here. John take it easy your issues are nothing to laugh at.
prolly yes on both.
Could try going to 38*
It's got an MSD RTR so limited on the curve.
Advance is probably a straight line.
It should be OK to finish with the carb experiments.
It might be best to slow the mechanical advance a little so its not all in untill 3000 - 3400 rpm, maybe 38* when the vac advance is connected.
I was thinking that in just mechanical. 34-38
Eitehr way unless its only happening above 2200 rpm , I don't think the vac advance is the culprit with the dead spot.
Test it out to be sure.
Maybe its contributing to the problem a little but be surprised if the carb setup is not a part of the issue
Test it out to be sure.
Maybe its contributing to the problem a little but be surprised if the carb setup is not a part of the issue
I do believe it is mostly in the carb, I am just now questioning the speed of curve tie with what you have shown. It does only happen from 2700-3200 ish and the sudden cruise to WOT. Both of those are 95% better with no vacuum advance and both bleeds open. Bleeds are for 1/16" or 1/18" hose, whatever size is typical vacuum advance diameter hose. Just polling the masses wondering if reconnecting the advance would be a good idea or just leave as is running as good as it ever has
zkx14
Duster De-ruster
Good Morning Head Bangers!
Costing the postal service Billions. And how do you suspect that cost gets covered? Stamps going to .66, I think July... Chinese counterfeits have gotten so bad Scott made a separate catalog for them. Amos Advantage - Scott Specialized Catalogue of United States Counterfeits
I'd say up to you.
Ever notice public votes don't have much relation to success of the office holder!?
if you go with vac advance, it should help fuel milage and keep the engine happier on longer drives.
In which case, install a pair of springs with higher spring rate.
It is all good stuff and taken with much appreciation. Testing will tell all.I'd say up to you.
Ever notice public votes don't have much relation to success of the office holder!?
if you go with vac advance, it should help fuel milage and keep the engine happier on longer drives.
In which case, install a pair of springs with higher spring rate.
Thank you for the thoughts on too fast of a curve and vac adv. One or the other, but not both.
I have been using that skull stamp for months.. no issue with em
It will be good to measure timing at a couple other engine speeds.
Maybe it really looks like this
or maybe its like this?
I will see what I can find out and will report back
zkx14
Duster De-ruster
I'm not really tuned in to identifying the fakes. Apparently some are obviously crappy print. Others are near perfect. Some can still be identified under UV light looking at the 'tagging' that the automated equipment sees. But even that they are getting near perfect. Not a new thing, but USPS made it way to easy with Forever stamps. Not even an issue of 'shelf life' for the fakes. They get more valuable every time they raise the cost of a stamp! This is part of the reason I don't even collect Forever stamps.
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Well I just got Jodi home from knee surgery. They had to work on both inside and outside of knee so she is super loopy. I tried to stop at the gun shop figuring she would agree to anything, apparently she could see thru the anesthesia bliss because I got a hard no for the gun shop stop. Dang it!
I'm sure through the haze the word "gun" struck that one bit of brain still cognizant.... and "NO" was formed
Nice try champ
Soooo I'm guessing they didn't give her enough of the woo woo juice?? Maybe next time.
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