I dont see them on his website... sent him a text.
Using two stock light springs in distributor advance, good idea?
- Thread starter LivewireBlanco
- Start date
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I dont see them on his website... sent him a text.
LivewireBlanco
Well-Known Member
I'm going to try the two light springs as a start and go from there. No fancy machine available. If the curve is way off I'll order the springs and plate. I'm hoping I get lucky since this build is on the cheap. Thanks guys!
not sure if he sells the springs alone, or only with the limiter plate, I picked up the plate, his tuning book, and springs
How to limit mechanical advance in a mopar distributor, tuning for street, strip or all out racing, cure that rich stinky idle, win races
How to limit mechanical advance in a mopar distributor, tuning for street, strip or all out racing, cure that rich stinky idle, win races
There is a guide in the ignition section as well about slot length in the advance cam plate, us it to set your slot length for your baseline, weld the slot on the shaft side to shorten it so you put tension on the light advance springs when they are at zero advance, you can always stretch one spring coil open like the re curve directions show (lightest one first) if you need it to advance faster.
Why does he need an antiquated distributor machine that's hard to find? He has an engine he can use as the distributor machine. Nobody's guessing. We're giving him good, solid guidelines to use as a starting point. He can do the same thing with the engine as he can a distributor machine that most likely no one he knows has.
Once again, I must bow before the master of the board for saying exactly what I was thinking. As much as I would like to have access to a distributor machine, you can do the same exact thing with a timing light and a tach. A distributor machine will tell you your advance rates at what rpm and so on, but eventually you have to run the distributor to see if the baseline you establish is correct or needs fine tuning.
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LivewireBlanco
Well-Known Member
It's all good. I've got some great pointers and my 318 ci distributor machine will let me know what's up.
67Dart273
Well-Known Member
There is no factory distributor that has a short enough advance curve, except maybe for the earlier performance setups. Something "pre smog" IE 67/ earlier. Even then most of us would like a shorter curve
BEAR IN MIND that factory specs are DISTRIBUTOR degrees so you have to double that to figure crank advance.
69_340_GTS
Well-Known Member
Don't even need a dist. machine. We all have timing lights, don't we?
abodyjoe
Well-Known Member
it will probably work well with two stock light springs.. total will come over 2400 rpm somewhere....
you figure a stock light spring and a mp or mr gasket light spring brings total in at 2000-2200 rpm so two stock light ones will be a bit higher then that...
The distributor machine for me is essential since I do by the number stock rebuilds mostly. But who has the room for one once every few years? A car works fine with a light and a tach. You need some springs let me know I will send them to you. There are a ton of different rate "light" springs out there and I have done that on certain ones for a custom curve works great.
LivewireBlanco
Well-Known Member
Will do. This is just a fun car/ budget build so every tiny fraction of hp isn't essential. Just doing the best with what I have.
Yes, one light one that is a little on the stiff side out of my 318 smog distributor and an even lighter one from an ‘85 D350 360 distributor. My underhood tach/dwell meter was a being a little fidgety that day but advance is all in between 25-26 hundred rpm. I am right there with you on the fun part, but can’t keep myself from going after everything I can find on the table for free.
Just fyi the studs the springs go to are eccentric and you can tighten and also loosen them and you can possibly get more out of it if you just need a bit.
That’s good to know, do you care to show us a pic of that if you have a unit handy? I know I’ll be re-curving when I make the change to deeper gears, and may need the extra adjustment
I have a unit but last time I posted it the thread got cut down! What unit you need pics of? The spring shaft adjusters?
Lolol! Why, yes the spring stud adjusters, no, please, not the other unit... I should have said distributor torn down to lower plate unit, things were a little busy at the time.
Old school bend the tabs
abodyjoe
Well-Known Member
holy blurry pictures batman...
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