Need more HP and MPG out of my 06 c15 acert

You can get good results with 550hp hh program and the right fls and fts settings. I have done several .4 to .6 mpg gains. Also the m100463 donaldson mufflers are good for .1 to .2 mpg gains. Get the valves set also.

 

HH, heavy haul?

 

yes hh Means heavy haul.

 

That's what I suggested in post #3, minus the fls and fts settings which wouldn't be hard to change later.

 

no not just got to know the right ones. Now I am not saying that a pdi or bullydog tune could do better I am just stating what I have done.

 

Yea finding the right numbers is the hard part

 

Check out the threads I followed up on above on the page and save yourself some money.

 

I do my own flashing

 

I have friends with the PDI stage 1 on there Acert and their getting 6 + on mpg hauling pretty heavy loads

 

Just don't forget to check the simple things first. I.E CAC and all boots a small leak makes a big difference, you cant go by the gauge. They can still hold boost with a leak. check fuel pressure and I have seen it in spec but have a suction restriction causing low flow. Basically make sure your engine is in top shape before tuning. Tuning will help one that needs a little attention. but tuning an engine that is right will put a big smile on your face.