Went to a guy today, and had him retime mine to 12*....Can't tell one damned bit of difference....UGH...

 

13deg. No ping with 87 octane even at WOT.

 

I assume the guys reputable, but if he didn't pull the spout connector you wouldn't see a change. If you don't pull it, the computer will retard it back to the stock 10deg. That's assuming I read everything correctly before I did mine.

 

He pulled the SPOUT....Just seems to not have did a thing...Makes me wonder if he even did what he said....

I mean, he's a very reputable guy an all...But his specialty is a mustang...

 

I don't know if I can feel much of a difference either. I did mine in hopes of improving my mileage, more than extra power. That said you'd probably only gain 3 to 5 Hp I'd bet.

 

Well dang, I was gonna advance mine, but if you don't gain anything and maybe get 3-5 HP I dont see the value. Is there an unseen gain I'm not understanding here?

 

I advanced mine yesterday. My marks are wearing off so its hard to see but I advanced it to like 12 or 13 and I noticed a bit of a difference. It idles smoother and isn't as hesitant when you get into the throttle.

 

I changed my PCV valve and noticed my idle has smoothed out and my mileage increased by 2mpg.

What would happen if I advanced my timing?

 

I advanced my timing incrementally for MPG improvement. It's fairly easy to do, the hardest thing is to see the marks as the pulley turns. I have a cheap timing light so a better light might make a difference. You do want to disconnect the spout before adjusting the timing.
I'm now running at 13°~14° advanced and frankly, I did not notice any improvement either in power or fuel economy (before messing with the timing, I also changed the plugs, wires, dist. cap, rotary button, coil and all filters and fluids to synthetic, etc. And did a Seafoam treatment).
Your mileage might vary, but I don't think you'll notice any difference by advancing the timing from 10° to 14°. Now, if your timing is retarded or not set properly, you might improve things a good bit.

Just my $.02

 

Hmmm....How would Advancing the Crank timing 4* help?

 

Most likely.............ping, ping, ping, rattle, rattle!

 

Mine was slightly retarded probably at about 8* when I put the motor in a didn't having a timing light so I was winging it but now that I picked up a light I checked it and advanced.

 

Generally. it's believed and empirically proven that advancing the timing a few degrees can improve power and engineefficiency.

Many people have advanced the timing in the 5.0 engine by as much as 6° over the 10° base timing without any detonation problems, even using 87 octane gas. I have not experienced any knock in my truck.

Trying to adjust timing without a timing light would be really chancy. I guess a good experienced mechanic might be able to do it "by ear", but I sure would not try it. You could destroy the engine with detonation.

I can see how you could easily get good results by advancing the timing a conservative amount because you were running the timing retarded to begin with.

 

For best performance put one of this under the hood...

 

I had a coworker ask me about putting an underdrive pulley in. I said I don't think I could do it because the crank and a fan are so close as it is. I'd have to install electric fans and take the motor fan out.