Mud-club

Vehicle & Technical => Discovery => Topic started by: andygod on October 27, 2006, 16:29:13

Title: Timing mark
Post by: andygod on October 27, 2006, 16:29:13: Can anybody please advise me as to what timing mark suits a 3.5ltr V8 running on LPG? I know that LPG engines like the timing advanced but I need to be more precise. I believe mine is a high compression engine.
Title: Timing mark
Post by: Range Rover Blues on October 27, 2006, 16:55:11: Not as much as you'd think, about 4/5 degrees. BUT you will kill the engine if you run on petrol like that.

On Blue I have an Iwema ignition processor that adds 4 1/5 deg on LPG and it makes back up about half the power loss.

On the LSE I don't loose any power

On RRR we fitted a processor along with the multi pooint (like the LSE has) and it makes little difference, again LPG doesn't loose power.
Title: Timing mark
Post by: andygod on October 27, 2006, 19:25:32: The consensus of opinion on other forums seems to be about 8Ã‚Âº BTDC; do you think this sounds ok? :?
Title: Timing mark
Post by: Range Rover Blues on October 27, 2006, 23:25:30: I don't know the proper setting off the top of my head but for a HC that would be perhaps a little cautious, for LPG but it will be harder to start and more prone to damage when on petrol, so a compramise as always.
Title: Timing mark
Post by: BigGreen on October 29, 2006, 22:33:00: Mine is set to 8 BTDC runs fine no problems, installed one of the advancer gizmos 2 weeks ago and gave it another 6 seems to give me better power at high revs, was always a bit flat past 3k.