MSD E-Curve digtal distributors

[colinb]

ust as the heading suggests, been reading about this dizzy and it has 20 cenrufugal curves and 5 vacum built into modual and at a turn of a dial you select the one most sited to your motor, seems ideal without changing weights ect, has anyone tried these and what is the opinion of them.

Colinb

[Clarkson]

Originally Posted by colinb

ust as the heading suggests, been reading about this dizzy and it has 20 cenrufugal curves and 5 vacum built into modual and at a turn of a dial you select the one most sited to your motor, seems ideal without changing weights ect, has anyone tried these and what is the opinion of them.

Colinb

Word on the street say's there are unreliable (MSD&Chevy Talk),but so are must of the other MSD products!!

Do a search here mate.

http://www.msdignition.com/forum/ind...e9e795dc564698

Save you money and fit a HEI with a high output coil.

[wilf]

Curving the "simpler" style distributors is so easy, I have to ask why you would need this degree of complexity for a job that really only needs doing once in the lifetime of the unit?

And the "simple" centrifugal advance units seize up regularly anyway. Gawd knows what the more complex one would do.

[ldtopham]

Originally Posted by colinb

ust as the heading suggests, been reading about this dizzy and it has 20 cenrufugal curves and 5 vacum built into modual and at a turn of a dial you select the one most sited to your motor, seems ideal without changing weights ect, has anyone tried these and what is the opinion of them.

Colinb

Off topic, but Colin did you receive my email regarding the carb?
Cheers,

[fastco]

Originally Posted by colinb

ust as the heading suggests, been reading about this dizzy and it has 20 cenrufugal curves and 5 vacum built into modual and at a turn of a dial you select the one most sited to your motor, seems ideal without changing weights ect, has anyone tried these and what is the opinion of them.

Colinb

My 1 pence... few have tried these E dizzys..nice and trick...but price high
also waring not compatible with traction control systems.
Also remember the KISS factor.....this unit is not.
I suggest good quality HEI..Mallory or Revolution or Protronix
with curve kit & adjustable advance.... set and forget it. As you would with e dizzy but @ 1/2 the price.
Cheers! Dr,Dee
ALSO MATES! Big warning on those off shore E-bay deal HEI dizzys
we have seen major problems.... bad miss fires @ mid to high RPM ..reason... dizzy rotors not in phase with reluctor and pole piece pickups.....cause'n severe miss fire.

[colinb]

Well there was'nt much positive input on these was there, i thought it would be easier to adjust and tune by twidling rather than push-pull-and-poke. I believe wilf that the mechanism inside is not conventional bobweights bot a slideing electronic potentiometer which possibly would not suffer from rust, i still think the idea is good and helps bring the dinosaurs into the 20th century with a little technology, but if it dont work then back to the charcoal. But i wonder if there is anyone who has actualy used one.
Lee i dont remember the email about the carb, can you send again please.

Colinb

[ldtopham]

Originally Posted by colinb

Well there was'nt much positive input on these was there, i thought it would be easier to adjust and tune by twidling rather than push-pull-and-poke. I believe wilf that the mechanism inside is not conventional bobweights bot a slideing electronic potentiometer which possibly would not suffer from rust, i still think the idea is good and helps bring the dinosaurs into the 20th century with a little technology, but if it dont work then back to the charcoal. But i wonder if there is anyone who has actualy used one.
Lee i dont remember the email about the carb, can you send again please.

Colinb

Colin, you have pm

[AKBandit]

I have one of the e-curve MSD dissy's. Seems to work fine, but only done 1500 miles or so. It also has a rev limiter, built in, which is useful. Much better than the dual points one that was fitted previously.

[conrod]

I would agree with Wilf here, in that it's relatively easy to alter the mechanical and vacuum advance on most dizzies. However, the tricky bit is assessing whether each change has made things better or worse. Thats's where tuning experts with R/R dynos come in - but they don't come cheap (said from personal experience!).

What might be useful is a "sticky" on this forum where members post details of their engines and (ideally) dyno-proven lists of advance settings that suit specific engine/cam/carb setttings. I guess the issue will be the number of permutations of these variables there are out there - but it might provide a useful starting point for people setting off down the tuning path.

As an example, with my Mallory dizzy, changing the mech advance springs means removing the pins from the Molex three-pin plug on the wiring loom, as the wire has to be passed through the dizzy body in order to remove the ignition module plate to gain access to the springs - a complete PITA. To at least have a good idea of a likely successful combination would have been very useful!

When I've found somewhere where I can rev my engine up without annoying the neighbours (sigh), I'd be happy to publish details of my set-up , the springs fitted, and details of the mechanical advance curve this provides (as measured with a timing light). Would this be useful to anyone?

[wilf]

Thing is, that small block Fords and Chevies and RV8s have been done so many times that you don't really need to spend more money on curving the distributor - the info on what works is out there for all to see, so "experimenting" with different curves is a waste of time really. For instance - Ford small block - 34 to 36 degrees total advance at 3000, start advance at 1500, all in by 2500 - 3000. Nowt to it. And one of the easy to do MSD set ups. Funny that.
These things don't need over-complicating.