dissy advance

[Simon_peters36]

for a while i will be running my pinto which has twin 45s on the standard dissy will i be better tapping a surply into the inlet manifold for the advance pipe or just blocking this of?? i know electronic will be best just want it sorted till i get electronic thanks !!

[jeremyf]

I'd be interested to see what people say about this. I have mine blocked off which is what most people do. From my limited understanding, for fuel economy (i guess you are not too bothered if you have 45's) and driveability, ideally there should be vacuum advance but I guess you would have to take a small bore pipe from each inlet tract to average it out especially if you have a lumpy cam. Otherwise the advance will be all over the place on low revs and part throttle. Has anyone had any success with this?

 

You can/could buy an aftermarket distributor with a different advance curve which does away with the vacuum advance but again, i'm guessing this is designed for performance rather than economy or low down driveability. I have just tweaked the maximum advance and springs on my standard distributor.

 

When you say electronic, I guess you are talking about mapped ignition rahter than just electronic ignition?

 

After all that, i'd say just block it off for now!

 

Jeremy

[Mk2Jo]

Guys, I'm moving this post over to Old Skool Chat as you may get a wider response there

[SmokeEm]

Block it off until you can buy a Bestek set up

[escort21]

Twin carbs and economy don't belong in the same sentence anyway

[Simon_peters36]

thanks guys will keep it blocked off for now cheers!