SLROC Forum
General Category => TECHNICAL CHAT => Topic started by: Farx4 on September 29, 2019, 06:15:33 PM
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Does anyone run a 3.5 V8 on SUs? If so what ignition timing do you run with? Think the motor in mine started life in a Rover SD1, standard as far as I can tell. Just replaced the dizzy as the old one was worn. Runs and starts fine but has now power if you want it to go faster, not really ideal for a comp safari motor! Thanks
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Book value is 7 degrees static, you can go a few degrees more if you have good compression. Try 8-9 and see how it goes
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Ok thanks, there it is where I have it now so I will see if it responds to tweaking ;D
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I used to run 36 degrees on full advance. A figure I got by phoning http://www.realsteel.co.uk/ (http://www.realsteel.co.uk/) many many years ago. You need to set it with a strobe. It's the full advance setting that matters and the static timing will only give a proxy for the full advance figure and is dependent of the condition of the dizzy. If you have no strobe then in essence advance it until it pinks and then back it off a degree or two that's worked for me in the past!
I had a V8 dizzy that was pretty tired and in order to get the necessary 36 degrees at at 3000+ rpm I think it was showing 14 degrees at idle. Ran perfectly!
Good luck
https://forum.wscc.co.uk/forum/topic/36687-what-is-engine-pinking/ (https://forum.wscc.co.uk/forum/topic/36687-what-is-engine-pinking/)
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Was that on a standard 3.5?