New Lectronic Ign by CBP

[Dale M.]

DB & HVW Magazine (Sept. 2011) Has article about CB Performances new Lectronic Ign... Uses crank fire (good) disk on pulley and CAM SYNC via dist body (bad)...

What you think?.... Though whole idea was to get rid of dist body (even for cam sync)....

Didn't bother reading whole article, was turned off by picture of dist body still in place.....

Dale

[helowrench]

If the dizzy drive is just telling it which cyl is adue for ign and the crank trigger wheel is doing the actual timing signal, then there is nothing wrong with it.
Other than aesthetics........
Rob

[supaninja]

With a cam sync signal then it's most likely sequential ignition which is good. Knowing CB's prices, it would be cheaper to just use a megasquirt for ignition only with a trigger wheel and wasted spark if you want to put a plug in place of the dizzy.

[Piledriver]

The cam sync on MS systems isn't used for actual timing calculations, it's only so it knows that "next crank tooth is TDC #1"
I'd hope the CB system does the same.

A distributor (even a shell with a single tooth//hall pickup) is a ~convenient way to get that cam phase pulse.
One might even be able to adapt some of the hall effect speedometer drives (think Mk4 VW, assuming those are one pulse per rev.) and have nothing there but a stub and a connector.

There are other ways to get sync data, but ~all rely on opening up the engine or installing hall sensors in valve covers etc. to accomplish the same.
As long as you aren't relying on it for precision timing data, it's all good.

If you don't like the looks and want sequential ignition... get out the drill or run something off the dist. drive, one could easily build a sensor setup that fit fully in the hole, nothing sticking out but a wire... In fact, one could have the sensor on the side of the block off the dist bore... but if it's only for looks..

If you aren't running >7K, waste spark and semi-sequential injection* would work for 99% of uses.
Over 7K with most setups you can run into dwell limitations with waste spark.



(*batch but with controllable, consistent timing of injection)

[Dale M.]

hmmm.... Was trying to get away from distributor all together but need RPM range up to 7500 rpm or so (Performance motor)...

Can see where Compufire unit in dist body (with advance locked out????) with three magnets removed from disk may be useable as sync signal though....

Dale