2056 Timing, Looking for Analysis Of New Timing Values Options

[Mblizzard]

I have converted my 2.0 to a 2056 and added Micro Squirt fuel injection.

Ever since I did the 2056 conversion I have seen higher than norm cylinder head temperatures. In fact I cracked a set of heads from getting them too hot.

I played around with the timing with in the suggested 2.0 limits of around 27 degrees. but was really never able to influence the CHTs that much with changes in the timing. Adding more fuel at the right times with the Micro Squirt certainly allowed me to control the CHT much better but I always felt it was still getting too high.

Then I ran across this.



This is certainly a lot more advance than I ever added to the engine. So based on that I revised my timing table to:



Just love how easy it is to make changes with Micro Squirt.

So I am looking to see what the thoughts are on 35 degrees of advance and what impacts it may have on CHT. I am going to load this and test tomorrow.

[McMark]

Hey Mike, do you have an IR thermometer? The gun type...

Let the engine warm up a bit, or go for a quick drive, then check the temp of each exhaust pipe, as close to the head as you can. The actual pipes, not the heater boxes. Report back on temps.

This is a great quick and dirty way to see if all cylinders are firing evenly or if 1 or 2 cylinders aren't working. It's always amazing to me how even a flat engine can idle when 1/2 the engine isn't working.