How to find the best ignition timing position without a dyno?

[beeza]

Well... if you have spent the $$$ on the MSD ignition, just spend a litle bit more to get it set on the dyno. Advancing the timing too far can cause detonation, and WILL harm the motor. Besides that, getting it done on the dyno you can see where the gains/losses are to be had, and you can then make an educated choice to have it set to where you want it.

Just go dyno it!

I know I know,that maybe the only way to get rid of the low end lag.Tune it with greddy emanage,I had it and was gonna then my plans changed and now they have changed back

Just get it Dyno'd Brett..


Come to Sydney for a road trip, get it done, chillax at mine a little

Thanks SHO! I will head down there and when I do,I'll be sure to chillout for a while's wid cha

I want to come down to go to wakefield

breeza, if your gonna use your method, i did it before long ago.

What you normally do is turn on the a/c to turn up the load before driving.
I used a timing gun and turned it up a degree at a time, then when it started to ping we dropped it back 1-2 degrees. Best done on a hot day with a/c on.

Its a cheap free increase but don't expect too much, may loose abit low end though

Thanks Limbo!

Shouldn't you be gaining low end though by advancing the timing,that's what I need.

So on a hot day you warmed up the car then turned the aircon on (full?) then set the timing.When you hear it ping,drop it back 1-2 degrees?

Is that Limbo?

I understand what you're trying to acheive,
But no, it doesn't change my mind.

On the weekend I Callorbrated the voltage on the tps and adjusted the idle via the FITV and idle/air screw,it's much better,it's sitting at more responsive revs at 100km/h - 3000rpm at it's idleing fine but it's still not picking up from a stop like I would like it too and believe it can,it's still lagging.Now,I only have the timing to play with,then greddy emanage.

It would be a mistake to think of your new ignition system as being a 'modification' in the sense meant in the quoted text, that sense implying some significant change in the engines volumetric efficiency (i.e. ability to 'breathe', e.g. cam change and/or porting or supercharging or boost change etc etc etc), and / or an increase or decrease in compression ratio.

With a stock engine (i.e. less than very substantially modified) an 'upgraded' ignition system will have zero affect on performance unless the system it replaced was in some way faulty, and will require no change to the timing.

Really, just set it to the factory spec, or set it on a dyno (shouldn't take long just to do the timing, shouldn't cost much).

Cheers John,good idea,I could just get the timing set on the dyno,cheers mate

MSD says it allows for some minor advancement of timing.I dont want power I want it running at it's smoothest.