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Re: Climbing and temperature and speed at the summit

Reply #25 –
Yahoo Message Number: 7669

We have the 8.1 and even if we had the Duramax I would not be putting my foot in it up any hill...Just find a happy medium - Speed to RPM ratio.

For us, that's about 4k RPM doing about 40 to 45 up a steep grade pulling a 6k pound trailer. I usually just play with the throttle to keep it in 3rd and or second gear, pushing more so i don't downshift on the steeper portion and less so I don't up-shift at the flatter portions...

Re: Climbing and temperature and speed at the summit

Reply #26 –
Yahoo Message Number: 7670
First, with my tune it gets me to 420hp and 800 torque. I always cruise around 58mph and in the hills 50-55 regardless of the hill size with the overdrive off. I never have to get down to 3rd and I never have to put my foot in it all the way.

When I did not tune, I was in your shoes, pedal to the metal and dropping down to third and staying close to the big rigs. The tune made all the difference in the world and made really enjoy driving my Seneca because I now have all the power I need.