[jmt0645]

Originally Posted by wood4heat

I'll start with my question regarding the 65hp tow tune vs the 80hp tow tune. Specifically whats the reasoning behind the 7,500lb weight limit on the 80hp tune? Is it strictly an EGT thing, will the trans not take it or is there another reason?
yes its related to EGT, adding more power requires more fuel, which generates mor heat

Also it seems many people report better mileage with the higher hp tunes. would it then stand to reason the 80hp tune would get better mileage than the 65hp?
not sure
Last along that same line of thinking could the 100hp performance tune get better mileage than the 80hp daily driver if driven moderately?
my understanding is bill writes DD tunes for better mileage than PERF tunes on diesels
I wasn't sure where to put this so feel free to move it if there is a more appropriate forum. Thanks for your input!

hope that helps