Good question! I had a spare dual output 3 ohm (they're usually sold in pairs) so that's why I used a 3 ohm with the ballast resistor. Same result, just using what I had to hand! The 5 ohm would be fine I'm sure.
Best
Geoff
Search found 103 matches
- Wed Mar 16, 2011 7:50 am
- Forum: Electrical & Gauges Shop
- Topic: Fitting Dyna coils to 900SS with Bosch ignition
- Replies: 8
- Views: 10934
- Wed Oct 20, 2010 8:14 am
- Forum: Electrical & Gauges Shop
- Topic: Fitting Dyna coils to 900SS with Bosch ignition
- Replies: 8
- Views: 10934
- Sat Sep 25, 2010 1:03 pm
- Forum: Electrical & Gauges Shop
- Topic: Lucas ignition testing
- Replies: 8
- Views: 10512
still, based on my conversations with Dyna and especially Mistral, I'd recommend chucking either 4.5ohm coil on or a 1.5ohm ballast with a 3phm. It doesn't harm anything but will almost certainly extend the life of the coil. (I used to think that the lower resistance on the coil the better for spark...
- Sat Sep 25, 2010 5:30 am
- Forum: Electrical & Gauges Shop
- Topic: Lucas ignition testing
- Replies: 8
- Views: 10512
Good! What's the resistance of the coil you're using? The green dyna is 3ohm and it's probably to low. After much discussion with Mistral and Dyna I ended up putting a 1.5 ohm (I think) ballast resistor in series with it and it's been fine for starting and running. If the resistance of the coil is t...
- Fri Sep 24, 2010 7:52 am
- Forum: Electrical & Gauges Shop
- Topic: Lucas ignition testing
- Replies: 8
- Views: 10512
I don't think Eurospares can help anymore. I've used (from the US and UK) the guy here both for spares and once for testing my unit: Mistral Engineering Unit 12 Taylors Gravel Lane Chigwell, Essex England IG7 6DQ +44 20 8501 2161 voice He's very helpful. In the end there was nothing wrong with the u...
- Sun Sep 05, 2010 7:36 am
- Forum: Electrical & Gauges Shop
- Topic: Rita ? good or bad?
- Replies: 5
- Views: 6887
Advance curve is stepped but not like the electronica system! (ie. more progressive) The coil I use is a Dyna green 3ohm dual output (DC1-1); but I had one fail and now I use the 3ohm green but with a 1.5ohm ballast resistor and it's fine (recommendation of the guy that services them at Mistral engi...
- Sat Sep 04, 2010 9:29 am
- Forum: Electrical & Gauges Shop
- Topic: Rita ? good or bad?
- Replies: 5
- Views: 6887
- Fri Jun 11, 2010 5:44 am
- Forum: Electrical & Gauges Shop
- Topic: '76 900SS regulator connections
- Replies: 3
- Views: 5933
- Thu Mar 25, 2010 11:15 am
- Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
- Topic: Valve Stem Seals
- Replies: 7
- Views: 11880
- Thu Mar 25, 2010 2:46 am
- Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
- Topic: Valve Stem Seals
- Replies: 7
- Views: 11880
- Thu Mar 25, 2010 2:41 am
- Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
- Topic: Piston Rings 86.4mm
- Replies: 26
- Views: 28701
- Fri Mar 27, 2009 2:31 am
- Forum: Engine & Transmission Shop
- Topic: oil leak rear head
- Replies: 5
- Views: 9511
Are you absolutely sure the leak is from the O rings in the head and not oil weeping out of the exhaust header at the nut? I had the same problem and my first diagnosis was the same as yours. After screwing around for a while I figured out (with help) that the leak was weeping from that place, with ...
- Fri Mar 27, 2009 2:16 am
- Forum: Engine & Transmission Shop
- Topic: 750 Sport Exhaust Question
- Replies: 5
- Views: 7950
- Mon Mar 02, 2009 5:51 am
- Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
- Topic: Piston Rings 86.4mm
- Replies: 26
- Views: 28701
For an international response to rings... when I lived in the US (three years ago) I had a smoky rear pot on my rebuilt '76 900SS. I had pulled the heads for inspection and just replaced them during the rebuild. @12000 miles. Bores were a bit scuffed, pistons same, both at the the outer end of toler...
- Wed Jan 14, 2009 12:50 pm
- Forum: Electrical & Gauges Shop
- Topic: ss headlight
- Replies: 57
- Views: 52475
He told me he was thinking AUD400 originally, but then with all the fleaBay action was seduced to thinking that a higher figure might be more appropriate. He said he'd fleaBay it. So hopefully it will reappear. He seemed a little highly strung when I PM'd him and took offence immediately at the offe...