Horsepower is horsepower?
If that theory is true (in real circumstances), then a 385hp 6.7L Cummins diesel shouldn't spank a 381hp Toyota Tundra when both are tested 0-60 towing a 5740# boat. But it did. Must be the adva...
Forum Discussion
What is reliable as far as how long it lasts, should depend on the end user. 300-500K miles would be UN-reliable to a long haul trucker. This would be ok for someone doing a lot of city/hwy driving, probably more than ample for the retired person getting groceries twice a week and church on sundays.
The IHC IDI 6.9/7.3 V8 diesels, were literally at the time 100K mile throw away motors! That is how long they were designed to last by IHC. They were ment to compete with GM/Ford on cost to a degree and there gas motors in class 5 and 6 trucks. Those gas motors ALSO ran about 100K miles before needing a rebuild back in the 70's and 80's.
The IHC 6.0/6.4 diesel motors will probably also run 300-500K miles mechanically, but the other******on the outside, including electronics make it what I would call unreliable! as they seem to spend a lot of time getting things fixed! The GM 6.5td might be another I would throw into the pile, but at least it was cheap to fix, as is the idi6.9/7.3 variations.
Most engines/ anything for that matter have design expectation before breaking beyond repair, so this design expectation needs to meet the end users expectation, if not, we have issues. Same could be said for a missile motor, does it need to last 10 yrs and 500K miles? reality is, maybe 4-6 hrs and a few thousand miles! so why build it to the higher mile spec?
Yes as noted, this topic is going off target, as HP is HP no matter how it is sliced, it is measured the same be it in a turbo or non turbo motor, of ANY fuel type! One needs to have the correct drive train, ie way to get power to the ground per say, for it to work equally.
Marty
The IHC IDI 6.9/7.3 V8 diesels, were literally at the time 100K mile throw away motors! That is how long they were designed to last by IHC. They were ment to compete with GM/Ford on cost to a degree and there gas motors in class 5 and 6 trucks. Those gas motors ALSO ran about 100K miles before needing a rebuild back in the 70's and 80's.
The IHC 6.0/6.4 diesel motors will probably also run 300-500K miles mechanically, but the other******on the outside, including electronics make it what I would call unreliable! as they seem to spend a lot of time getting things fixed! The GM 6.5td might be another I would throw into the pile, but at least it was cheap to fix, as is the idi6.9/7.3 variations.
Most engines/ anything for that matter have design expectation before breaking beyond repair, so this design expectation needs to meet the end users expectation, if not, we have issues. Same could be said for a missile motor, does it need to last 10 yrs and 500K miles? reality is, maybe 4-6 hrs and a few thousand miles! so why build it to the higher mile spec?
Yes as noted, this topic is going off target, as HP is HP no matter how it is sliced, it is measured the same be it in a turbo or non turbo motor, of ANY fuel type! One needs to have the correct drive train, ie way to get power to the ground per say, for it to work equally.
Marty
