What makes an Economy tune?

[907DAVE]

Ahh...I see..... does seem like things could get a little hairy.....quick!




Hmm....

[Power Hungry]

Especially when building files for high RPM racing/pulling applications. A small change in the SOI Offset could end up being a large timing change at 4000 RPM.

[soutthpaw]

But your fuel still burns at a constant rate.. haven't found the numerical constant for that but you can't get the fuel to burn faster so burn rate vs milliseconds should be a constant... (unless you add or remove something like NOS or elevation less O)
EDIT: Life should be so simple.. wrong again see next post

[Power Hungry]

The thing is, the fuel DOESN'T burn at a constant rate. Changes in RPM, Boost, Ambient Temp, Fuel Temp, ICP, and others all change the burn rate of the fuel because the temperature of the compressed air and injected fuel all change. Even just a simple increase in ICP will change when and how rapidly the fuel will burn.

[soutthpaw]

Originally Posted by Power Hungry

The thing is, the fuel DOESN'T burn at a constant rate. Changes in RPM, Boost, Ambient Temp, Fuel Temp, ICP, and others all change the burn rate of the fuel because the temperature of the compressed air and injected fuel all change. Even just a simple increase ioon ICP will change when and how rapidly the fuel will burn.

Sheesh, I was thinking that all along there was a 1 constant something in all this.. WAIT! I know it what it is. the one thing that is constant is that nothing is constant!!!!

well in any case it finally looks like my MPG mods are making some improvement if My lie-o-meter has anything to say about it....
I am using the 80HP to build some MPG tunes, would there be a better base map to build from. I made the changes u mentioned earlier in the thread... I am really concentrating on the low boost, low APP area for running on the freeway as I like the get up an go on the 80 off the line. it has not seemed to affect that part of it thus far which is good...