Shamoke
Registered User
- Joined
- Sep 16, 2019
- Posts
- 59
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've looked around and haven't seen any posts about the rpm limits of the 7.3 IDI. The tach caution line is set at 3400 but that seems extremely high to me. I had my 88 F-350 5 speed on the highway yesterday and got up to 65 mph with the tach reading 2400 ish but that engine sounded like it was wound up pretty tight and I started to get concerned about it flying apart. At 60mph it was reading 2200 ish as still sounded a bit high but more tolerable than the 2400.
I grew up around over the road trucks and drove then for 13 years, the Cat's and Cummings engine I am used to top out at 2200 to 2300 and are governed for that rpm. Anything higher sounds wrong to my ear so I am wondering about what speed I should limit my IDI too.
I grew up around over the road trucks and drove then for 13 years, the Cat's and Cummings engine I am used to top out at 2200 to 2300 and are governed for that rpm. Anything higher sounds wrong to my ear so I am wondering about what speed I should limit my IDI too.