yellow rose
Overnight Sensation
I just sent Halifax a message. Turns out we are almost neighbors.
Well there you go!!!! That’s an even better deal.
I just sent Halifax a message. Turns out we are almost neighbors.
I'm in Pittsburgh and he's in "Centrural Pa." I like the guy alreadyWell there you go!!!! That’s an even better deal.
Hey Rusty. I pulled the distributor and, what do you know, both springs had slots. And one of the "eyes" broke -- with barely any pressure -- as I was removing it. So I'm replacing them with two good "full circle" springs. It may not do much as far as my original post, but these springs needed to be replaced either way.
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If this fixes the problem, can we look back at post 8 and 11 ????Well I'll be dog. The one that's not broken was stretched real bad too. I bet those springs was the problem. Or at least a big part of it.
You can turn this to your advantage by saying ;When an engine wants a lot of timing its lean. When you have low comp and a bigger cam there isn't a lot vaporization taking place before ignition time so burn proceeds slowing.
You can turn this to your advantage by saying ;
If your engine will accept an increase in timing, then you might simultaneously be able to lean it out.
That is partly how I got 32 mpgs(hiway) out of a 223/110 cam. The other part was bringing the rpm way down to; 85=2040/65=1560. Of course the 180 plus psi cylinder pressure probably had something to do with that as well.
EEEEWWWWWEEEE!Well heck yeah! A match made in Mopar heaven.
32/34 for power. (alloy heads)The reason it needs a lot of timing is because the mixture isn't that good and requires more time to get the flame front moving. When the mixture is less than ideal it requires the energy to heat the mixture to get to a point where it will burn. Energy that is used to get the rest of the combustion going is wasted instead of pushing down on the piston.
What was your total timing with 180 psi?
@Hysteric
I hear what you are saying, and do agree. But I'm just telling how I got 32mpg with a 223* cam in a 367. For this exercise I used a 600 model 1850, and just leaned it out and poured timing on it to keep it running,and geared it to 65=1650/85=2040.
To do that, I collected a series of very thin wires from IIRC about .006 to .012.. Then I accessed the IFRs, which were at the top of the wells, and did what I had to, in terms of leaning it out. I used the dial back to determine the timing she liked, centered around the cruising speed, and built the curve accordingly.
Since the secondaries were disabled, this could have been done with any 2bbl, and even easier with a meteringrod carb. This was a spur-of-moment exercise,done for a specific roadtrip; the engine was already making great mileage with a 750DP; I just wanted to see what could be done with the old 1850, that was gathering dust in the shed.
Since then, I have obtained a Dual-Port and a small TQ, and one of these days, maybe ........... I'll get around to doing something, but I thing this present world wwill fade away first.
We talked the other day think I got him on the right path, he has a MP Mallory style distrib and it was not set up properly. @JG1966 Where are you at now with the issue?
Thanks Ray. I was nice talking with you. I appreciated your help. I used a silver spring and a blue spring that I had laying around -- just to see where it put my curve -- and adjusted my mechanical timing from 18* to 16*. I'm now at 20 initial, 16 mechanical. My advance starts now at about 1100 rpm and I'm all-in at 2400 rpm. I haven't had a chance to take a drive (rain). But my timing light shows a much more consistent curve than before, when it would jump from no mechanical to all in, all at once at about 2,000 rpm. I'm sure I had an issue with my springs. Next, I'm going to try to get vacuum advance dialed in (using manifold port). I've never been able to get it to work right, but with fixed springs, maybe it will work this time. Thanks againWe talked the other day think I got him on the right path, he has a MP Mallory style distrib and it was not set up properly. @JG1966 Where are you at now with the issue?
What was your total timing with 180 psi?
Hey guys where is the ported vac on a Holley? all he has is manifold (full) vac?
Sure. Gimme a minuteThat's what I though. John can you get a pic of that area?
Here is passenger side metering blockThat's what I though. John can you get a pic of that area?
If there is only one port on the base plate under the primary fuel bowl, then you don’t have a port for timed vacuum.
If there are two ports down there, one is ported and one is manifold.
Here is driver's side secondaryWhat's the rear driver's side look like?