MSD multi spark discharge - help

breville Slammed & Awesome Dubber

80 posts · joined Jun 2003 · 14 Dec 2003, 7:08 pm

#120981

hi there

Im looking into the virtues (or not) of an MSD.
Car config now
71 S bug
1600 TP
GT 40 coil
single Webber 40dcnf
petronix ignition
009 distributor

can anyone give advice on price brand and model suited. and where I can get one

regards

DAve

tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 · 14 Dec 2003, 7:47 pm

#120998

Depends on how much you want to spend dude really.

Iffen you are handy with a soldering iron then there is a very nifty ignition kit available which is a multiple spark CDI. I think Jaycar carry the kit. By all accounts a very good design and should prove to be a far more robust design that the CDI's of old, even the later pulse shaped CDI's

Sets a maximum number of sparks at around 3 or 4 or something like that (I cannot remember)something like that and can be triggered a variety of methods such as optical, hall effect or magnetic proximity.
I would presume it could be triggered by points as well.

You are currently using a "Petronix" ignition yeah?.
I dont have any idea on that particular system as far as triggering is concerned but it will most probably be only of 3 types as above.

I seem to recall these kits being in the 140 buck range.

Otherwise, any reputable speed shop will help you with MSD genuine stuff but expect to unload a fair bit of freight for a decent aftermarket multi spark ignition.
L8tr
E

Im not a complete idiot, quite a few parts are missing....

lugnuts Custom Title Time!

1,070 posts · joined Aug 2002 · 15 Dec 2003, 1:39 am

#121071

Not much bang for your bucks i reckon,but hey what would i know.:P

tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 · 15 Dec 2003, 3:45 pm

#121202

Abot right dude really. 😀

Unless the engines is a real special with zillions of reva, turbocharged or something like that I dont reckon there would be much benefit really.

Hes already got some kind of electronic ignition on it so the exercise may be just that yeah?!! :thumb

Im not a complete idiot, quite a few parts are missing....

Bizarre Moderator The artist formerly known as blue74l

12,785 posts · joined Aug 2002 · 15 Dec 2003, 4:13 pm

#121210

http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=IGD0003&cartid=1214200383526800

Have a read of this

My mate runs this on his 1916 in Cali and swears by it.
I gather "one" of the big points is the "tuneability" of it. You can dial in your owns curve.

Now - do you want to spend $500 to a $1,000 for this??? (about $400 US)

Then again a new SVDA is $130 US

All depends what else you have to spend your money on? :jesus

Futue te ipsum!!!

tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 · 15 Dec 2003, 5:02 pm

#121215

I actually have one on my F-Vee!
A simple Mallory twin point dizzy with no vacuum advance. They are quite configurable as far as initial, rate of advance and amount of advance.

We (currently) must trigger the coil with points and distribute the spark mechanically ruling out electonic ignitions but the rules dont say how many points can be used! 😀

I was not aware of the electronic dizzies tho.
Nice looking clobber but as you say the prices are very steep.
Definitely not worth it when it is a relatively easy exercise to recurve the stock ignition.

On my older cars I have run a simple Jaycar transistor assisted ignition module that are available for about 50 bucks for a kit.
They can be triggered in a variety of ways but I simply used old points to trigger them so I had a failsafe system in event of a module failure.

These systems are fantastic value in the low end scheme of things and result in good improvements all thru the range due to simple dwell extension and fixed dwell time features.

To date I have never had a failure of these units and I have had one in my old turbo 1600 Capri for over 15 years with the same set of points!

There you go

L8tr
E

Im not a complete idiot, quite a few parts are missing....

breville Slammed & Awesome Dubber

80 posts · joined Jun 2003 · 15 Dec 2003, 7:23 pm

#121253

Do they just replace the coil

which model is the right one

what else is needed to fit them

regards

1303 Officially Full-On Dubber

250 posts · joined Sep 2003 · 15 Dec 2003, 9:22 pm

#121319

The MSD 6a and 6al are basically the same except the 6al has plug in modules to set the rev limiter.These systems are a capacitor discharge ignition but deliver multiple sparks below 3000rpm to give a more efficent burn.The 6a and 6al are switched from your existing distributor and then provide primary switching to your coil at around 480 volts.....Good system.........not worth spending the moolah with your engine combo though.
cheers Paul

breville Slammed & Awesome Dubber

80 posts · joined Jun 2003 · 16 Dec 2003, 9:56 am

#121464