can the engine be tuned for fuel economy by ecu only, without adjusting the timing and cam gears?

i bought a two timer from moates that allows me to have 2 bin files on same chip and switch them by ground trigger.

i havent got into tuning too much yet so i dotn know the lil details of it.

 

yes but only to a certain extent

 

ppl mosty run two differnt maps for like 30psi for the track with q16 and then another map that like 20psi for daily with 93 oct .... this is a example tho

 

so its mostly for boosted apps then?

 

no it can be for what ever you want ... but just remember your paying for 2 tunes lol

 

Which would pay off in the long run.

 

the realy realy long run ...most of the time that setup will be changed by then thus in his case requiring 2 new retunes

 

im sorry but gas mileage is the one of the major reason why i own a honda.

 

i don't know why you would need two different fuel and ignition maps to get good mpg and make good power....

your map sensor tells your ecu how much load is on the motor, thus lighter load (cruising) you can tune it to leaner afr mixture. you can put what ever you want in the ecu, I used to run my ls turbo at 16.5 to 1 afr under cruising but 10.5 to 1 under boost. I got 32-34mpg consistently with over 300whp.

if you don't have a wideband, don't attempt to tune it your self. take it somewhere and try to pick the tuners brain a little so maybe you can learn something while they are tuning it. also read up on pgmfi.org if your serious about learning anything.