Timin Base Tuning

[Huntinducks82]

I have been trying to get some better fuel milage with my truck. I was reading another thread on here and it said to raise timing and fuel pressure. I have raise fuel pressure but have not been able to raise timing injection. When i logged my truck the first time the timin was higher than after i had raised it in the timing base tables. The timing dropped after i raised the numbers in the timing base tables. I raised every table also. Can anybody tell me what i am doing wrong.

Thanks Brian

 

[SgtKilroy]

Remember, there are multipliers for some tables like timing that can affect when the combustion actually begins.

 

[Huntinducks82]

I know there are multipliers for some tables. But if i raise a value in a certain cell that is firin why when i raise that value it is not showin i raised it in the log.

 

[hondarider552]

What has gotten me the best MPG is raised timing and a bit more fuel pressure with stock pulse width. :thumb:

 

[Huntinducks82]

What has gotten me the best MPG is raised timing and a bit more fuel pressure with stock pulse width. :thumb:

Thats what i keep reading but when i raise my timin my log says i am lowering it and i cant figure out why

 

[RENODMAX]

Are you trying to do this on a stock tune or are you trying to modify another tune? If your trying it on a stock tune make sure you change torque based fuel tables etc.

 

[Huntinducks82]

A modified tune.

 

[Mike_S]

Don't take this the wrong way, not trying to be rude at all, but are you sure you are changing the values in cells that are in fact being used while the truck is cruising?

 

[Huntinducks82]

I am adjustin the ones that are highlighted when i play my logg back. I logged a run from stop to about sixty five and i watch and then play the log back and watch which cells are firing in my tune. Its always worked for me when i am tunin for sled pullin. Not takin anything the wrong way any help is appreciated.

 

[RENODMAX]

I'd start over with a new tune using the stock tune. I like using the high altitude map with stock fueling and raising fuel pressure a bit. I'm not a great tuner by any means but ill help you all I can.

 

[Huntinducks82]

Thanks for all the input. I called Rob today and he got me straight on what i was doing wrong. Thanks Rob for the help.