Is bosch 009 the only way to go, or is accuspark any good?

Sorry @Austin not thread hijacking just furthering the information gaining

Good thread

 

Got rid of mine due to vac unit springing a leak and not advancing properly.
009 had mechanical advance so less to go wrong - in theory !!

 

did you also fill your tyres with concrete to stop you getting a puncture

 

A vac dissy with the vac not working is effecively a 009 ...

 

Beg to differ but a 009 uses bob weights and mechanically advances the ignition cam.
A vac dizzy uses the vacuum diaphragm and levers to `pull` the cam base around and advance the spark.
If a vac dizzy fails the ignition is in effect static and the spark timing doesn`t alter when revs rise ...

 

True if you've got a vac-only dissy, but common ones in vans like the '034 were both mechanical and vacuum advance ...

 

Ahhhh ..... see where you`re coming from.
Had a well sorted 009/stock carb set-up for years now so forgotten.
(hangs up anorak ...)

 

If you did have one of the dual-vac dissys, you'd be well rid of it . Bob-weights rule...

 

Doug, have you or anyone got a link to this 123 dizzy? need one without the vacuum advance too.

 

123's rule.... And they make you taller

 

Here you go @Austin
http://www.vintagespeed.co.uk/index...tegory_id=37&option=com_virtuemart&Itemid=119

 

not all vac/mechanical dizzys are created equal...the stock vac provides around 8-12 degrees of advance at 950-1000 RPM or so, then the bob weights take over the job. 009 bob weights will spin up earlier, but not as early as a stock motor would like, hence the need for a vac unit at low RPM. One of the aftermarket electronic dizzy suppliers requires you to lockwire the weights so they have noe effect on the advance curve...can't remember which.
The 123 allows to remap your own advance curve to suit your particular engine requirements, which has to be the best way IMO, assuming you don't go distributorless

 

Fitting a vacuum advance Accuspark dizzy with electronic ignition is the best thing Ive ever done for my '74 bay, I'll never go back to points and condenser, although I carry my old dizzy in my van just in case, but so far i've only witnessed improvements, no flat spots, idling is spot on, smoother up through the gears, and none of this reving the engine when trying to pull away from a junction as mention before, just make sure it's timed properly...... when I can justify it I will buy myself a 123.

 

I have a powerspark on mine and its been fine so far

 

Cheers bud, but....... Wowsers how friggin expensive!! I may well be accusparking it all the way!!

 

Nowt wrong with the powerspark or accuspark modules

 

Mmm...I've seen 009 electronic dizzy's that can have their advance curve adjusted how you want it using a laptop with USB connection, all in for £149...

 

You can get problems with flat spots using a 009 with a stock engine!!ive gone vaccy advance accuspark dissy and we are running nice n smooth so in my opinion the accuspark set up is proving worthwhile !!!in my experience

 

No idea what the dizzy is on my T3, it's got a shallow cap, and vac advance, but isn't stock '73, and the shallow pre-'70 caps don't fit, so when the existing cap wears out I've got a problem. In addition, while the engine appears to have no flat spots, and the carbs have been balanced and tuned, for a twin carb it's lacking pulling power, and I suspect the vac advance isn't enough for the engine at low revs. You can't buy second hand T3 dizzy's for refurbishment, which is probably why the unknown dizzy is fitted, I realise that I could probably look up the serial number on the existing dizzy, and find parts that fit, but as it's not advancing correctly, and isn't the right one for the car, why bother?

So I was looking for a programmable dizzy, to experiment, and get the right advance for the engine, hence the programmable 009 I've considered on eBay

http://www.ebay.co.uk/itm/171026123643?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Seems it'll fit T1 and T2 engines as well, so if I'm very impressed, I may change the one on the T2.