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Distributor bits and springs and stuff
https://www.slantsix.org/forum/viewtopic.php?t=31673		 Page 1 of 1
Author:  60 Plymouth [ Mon Oct 13, 2008 3:28 pm ]
Post subject:  Distributor bits and springs and stuff
Hi Everyone,

I am looking at installing electronic ignition in my car. She's a stock 225 just looking for a new ignition system. The intention is to stop buying points, gain a bit of reliability and a little more fuel economy.
I managed to get a kit in the UK for not a bad price, but I am not convinced it is a street curve.

The vacuum canister is stamped 7r, which seems a little low for a street curve. It could well be the Mopar Performance dizzy.

Any ideas on identifying it?

Also, since I wouldn't mind doing some curving work anyway, does anyone know the best way to get springs, weights, canisters etc? I can't go round scrap yards etc since I am in the UK (well I can, but the chances of me finding a Slant Six among all the Vauxhalls and Rovers is very slim :P ). I don't mind doing a little experimenting, but would like a good starting point regarding cannisters and weights.

Any ideas on either of these points would be greatly appreciated.

Thanks a lot,
60Ply

Oh by the way. I typically run on 95 octane here in the UK, since it is almost impossible to get anything lower. I don't know what the standard is in the US, but I may be able to run a little more advanced than is normal.
Author:  terrylittlejohn [ Mon Oct 13, 2008 3:54 pm ]
Post subject: 
thats good for you with 95oct fuel were lucky to get 91 here.what do the springs look like in the dist. is one heavier with a long loop in one end?
Author:  60 Plymouth [ Mon Oct 13, 2008 4:03 pm ]
Post subject: 
I'll have to take the dizzy apart to have a look.

Yeah, 95 is ok, but it costs! A few months ago it cost about £1.17 a litre at a gas station. At the current exchange rate thats about $9 a US gallon. As you can guess, I don't drive my car as much as I would like, and getting a few extra mpgs here and there is well worth it.

Will need to go get my dizzy from my girlfriend's house and take it apart to have a look.
How about the vac can? 7R seems very low.

Thanks alot,
60Ply
Author:  terrylittlejohn [ Mon Oct 13, 2008 4:09 pm ]
Post subject: 
just spin it around and look down inside it you can see the spring , just to get an idea of what you have, no need to dissmantle it yet.
Author:  DusterIdiot [ Mon Oct 13, 2008 7:06 pm ]
Post subject:  Not a US one...
Quote:
It could well be the Mopar Performance dizzy.
You will know its a MP dizzy... it has no heavy spring... the governor is stamped 10R... the arm on the vacc. pod is stamped 10x...

7R is something typically found in a points dizzy...

-D.Idiot
Author:  SlantSixDan [ Tue Oct 14, 2008 8:11 am ]
Post subject: 
Remember, the octane rating system used outside North America is not the same as the one used in the U.S. and Canada. Rest-of-world 95-octane fuel is approximately equal to North American 89-octane fuel. The three grades typically available in North America are 87-89-91, sometimes 87-89-92 or 87-89-93, and at high altitudes it's typical to find 85-87-91. The three grades typically available outside North America are about the same, but rated 91-95-98 under the international rating system (though 91 is disappearing from Europe).

The MP distributor has only one, very light, centrifugal advance spring. If you hold the drive gear and turn the rotor by hand, there's only moderate spring resistance right to the end of its travel. Definitely not a street curve; you'll want to set it up as you have in mind, street style, with one medium and one heavy spring.
Author:  60 Plymouth [ Tue Oct 14, 2008 1:04 pm ]
Post subject: 
Hi Guys,

Looking into the dizzy seems to show just a single red spring. The same post on the other side doesn't have a spring.

Dan, thanks for the info on octane ratings. I seem to spend a lot of time converting between US, UK and European numbers and I didn't know that US octane ratings were different.

Guess I am looking at a recurve. Anyone know any spring/governor sources? Possibly a more streetable vacuum cannister aswell? I am willing to experiment at a later date but a pretty good starting point would be good.

I do not want to mess with the current dizzy, since it works I do not want to change it, I want it as a back up.

As always, your help and thoughts are greatly appreciated.
Thanks alot,
60Ply
Author:  SlantSixDan [ Tue Oct 14, 2008 2:35 pm ]
Post subject: 
Single red spring = MP "non street" distributor.

Your old distributor won't serve very well as a backup item once you've put in electronic ignition, since it's a points-type distributor. For now, it's your easiest (and closest) source of street-type springs. Beyond that, you'd either want to get a street-type electronic distributor ($70 or so for a new one at OCPNW) or place a "Parts Wanted" ad here on the board and see who steps forward with some spares.

There are only two fuel octane rating systems: The whole world except North America uses the RON, Research Octane Number. North America used to do the same, but since the 1970s has used the average of the Research Octane Number and the MON, Motor Octane Number. These two numbers are produced by different test protocols. For any given gasoline, the RON is always higher than the MON.
Author:  sandy in BC [ Tue Oct 14, 2008 2:51 pm ]
Post subject: 
After fooling with many combinations in my EI distributor I ended up using the pod ,springs, and gov from my stock 65 points distributor. I would be tempted to do the same in your case.

If you are happy enough with the curve you have now, just swap it all into the MP dist.
Author:  60 Plymouth [ Wed Oct 15, 2008 2:44 am ]
Post subject: 
Hi Guys

I have the Bosch points distributor in my car at the moment. Dan suggested a while ago that they were from an ozzie built valiant, since they were one of the few slant six cars that were imported to the UK in any numbers (except maybe the Dodge/Renault 50 series trucks).

Will the springs/governors/cannisters from the Bosch unit fit the EI distributor? I know the current curve works, so it's a good starting point at least.

Thanks alot,
60Ply
Author:  SlantSixDan [ Wed Oct 15, 2008 1:08 pm ]
Post subject: 
Good question on whether the Bosch springs will fit. They might, though they might also not give the same curve on the Chrysler-built distributor due to different construction of the governor assembly. I'd be surprised if the vacuum advance would fit, but take a close look and see.
Author:  60 Plymouth [ Fri Oct 17, 2008 3:42 am ]
Post subject: 
Hmmm,

I'll have a look at the Bosch distributor parts when I have to install the EI. I use the car alot at the moment so can't really start playing with springs and things. The Bosch dizzie is a lot smaller than the EI unit so I am not convinced about sizes etc.

I have posted an add in the wanted section for springs and govs etc. that will definately fit. Hopfully I should be able to get a respectable curve to start with.

Thanks a lot guys,
60Ply
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