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Old 05-03-2012, 09:03 AM   #29
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Originally Posted by Fiesta48 View Post
You are right about keeping the RPM down. For engine longevity and gas economy. I've never had mine over 3500 rpm even up and down steep hills.
Sorry, disagree. Put the transmission in Tow/Haul and let the computer figure out what is best. I know it is difficult for us older folks that are use to having plenty of low end torque to pull us through, but the new breed of engines actually like to sing at the higher rpms. The worst thing you can do to that V10 is to let it lug at 2000 rpm while trying to climb a 7% grade. Let it sing and the motor will be happier.
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Old 05-03-2012, 09:13 AM   #30
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i am always Amundsen by "bench racers" who buy a
product that has a 100million bux in r&d and then know more than the guys that designed
you can make more power but at what cost.
now dont get me wrong the first thing i used to do when i was a kid when i bought a new car was to take it out and bury the speedo for a lot of early miles you know its gonna run the way you break it in.and 12-14 months later i was back in the showroom starting the cycle over again now that i am much older i find my self following the mfg reccomendations
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Old 05-03-2012, 09:53 AM   #31
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Quote:
Originally Posted by tncruiser
i am always Amundsen by "bench racers" who buy a
product that has a 100million bux in r&d and then know more than the guys that designed
you can make more power but at what cost.
now dont get me wrong the first thing i used to do when i was a kid when i bought a new car was to take it out and bury the speedo for a lot of early miles you know its gonna run the way you break it in.and 12-14 months later i was back in the showroom starting the cycle over again now that i am much older i find my self following the mfg reccomendations
brianj
If anyone views it like I do, it is more a real word thing versus the controlled environment.
Testing and R&D is wonderful. I am sure the 6.4 diesel in the Ford was tested (by Ford and International), I also just got a recall for a sensor that can go bad and put me in basically limp mode. I think Toyota has had a recall or 2 also. GM had a series of transmissions that were in some Bonneville and Grand Prix vehicles that ate themselves at between 40 and 50 thousand creating repair bills around $3000 (had Grand Prix, thankfully bought extended warranty).

So some people probably do not trust what they are told, or would like confirmation.
I am trusting Ford that they got the 6.7 Right, but still keep a eye on the Ford forums. Despite Ford saying no fuel additive is required, I am using it being as the fuel pump is Bosch.
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Old 05-03-2012, 12:42 PM   #32
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The whole horsepower vs torque thing is kinda esoteric.

Torque is real. It can be measured on a dyno, directly.

HP is imagination, or perhaps math. HP is torque time rpm. And yes, above an engines torque peak, torque will decrease, while HP may continue to increase, becauss rpm is increasing faster than torque is decreasing.

Bottom line tho, your right foot control percentage of load. On the floor equals 100%.
If you don't want to push your engine to 100%, lift your right foot a bit.

When i had my f53, is was fairly normal on very steep grades to put the shifter in second, and control my rpm and speed with throttle.
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