Breaker Points with Bosch Module

[addo]

- Anyone had a hack at this idea?

Using regular points with a resistor, to trigger the module out of a Bosch electronic dizzy, fitted to a heatsink. That in turn, driving an transistorised coil.

Would it work? Would the points voltage need stepping down again?

I'm all ears!

Adam.

 

[xdee]

Why?

 

[addo]

I want a FAT spark in a Triumph (car) motor that has a specially curved points dizzy, albeit with feeble spark. Present setup barely lights the fuel. Figured it might be a cheap way to get more bite.

 

[xdee]

Why don't you talk to your mate in Bayswater, I'm sure somebody would have worked something out using conventional points.
Have you thought about old style Capacitor discharge. I had it on an XB 351 and the spark was HUGE. But I had to adjust dwell and timing about every 2 weeks and replace points about every 6 weeks.

 

[addo]

I'm looking at cheating for historic racing. If it can be wangled, then the module can be hidden just under the coil inside the scuttle, and the transistorised coil persuaded to fit in a regular can...

I could get a dizzy made for around $450 by Ignition Torque, out of a Sigma or Camira donor unit - but by the time this thing gets competitive it may be an illegal mod (and obviously so). Also, as it's not my car I am reluctant to lead my mate too far astray.

 

[wagon]

Mate, have a look at the silicon chip electronic ignition kit - it is about $50 and it is dead easy to build and fit - I know a bloke with one on his old Datsun 180b ; it uses a standard points dissy for the signal and it works very well.

Kendall.

 

[Anonymous]

I made my own kit , it was easy . I used it on a 302 straight gas and picked up a few extra ponys on the dyno. might be a bit hard to hide though.

 

[MustangSix]

Most HEI type of distributors (Duraspark, GM HEI, Mopar, Bosch) generate an AC current as the reluctor passes the pickup coil. The igniiton modules sense the voltage rise and trigger the coil based on that.

I suspect you could use points to do the same on any ignition module by simply sending a make-break signal to the module.

The Gofastforless site shows this setup with a mopar module on points. I'm sure the gm module would respond the same.

 

[Anonymous]

does that ballast reduce the volts down? , because I dont want a LEI, I deleted the ballast with mine because the breaker points only switch the power through the modual, so the points dont burn

 

[MustangSix]

The ballast is only needed if the impedance on the coil is low. It limits the current to the module. If you have a high impedance coil (> 3 ohms), you probably don't need the resistor.