Quadzilla Timing - wanna share some info.

[Mopar1973Man]

Start out at 13° at 1,500 RPM and step up +4 or +4.5... Your first step up from 15 to 20 is too wide (+5°) even for my truck. 

 

13.0°, 17.0°, 21.0°, 25.0° is +4°

13.0°, 17.5°, 22.0°, 26.5° is +4.5°

 

Starting out above 14° tend to make the bottom end doggy. 

[AH64ID]

On 11/3/2020 at 8:14 AM, LorenS said:

I understand the chart, I'm just pointing out that there is more than one way to raise the Cetane rating, and that chart is likely from "Method 1" at the refinery by removing less volatile hydrocarbons.  I mean, there's a reason we don't burn #6 Fuel Oil despite energy of 152k BTU/gallon, but giant, slow piston speed marine engines do.

 

Exactly... fuel that is refined with higher Cetane is not the same as pump #2 that has Cetane booster added to it. 

Many fuel stations these days winterize their fuel chemically instead of blending #1 into it. This will also have an effect on the BTU's, in a positive way, over blending.