dieseldoug
Registered User
Lots of diesel experience on the water, but just getting started on the road. At $4.++, and 1.5 mpg in the boat, we had to say good bye to Davie Jones.
So, here's what I got:
1991 F250 4x4, extended cab, 7.3 idi w/ 4.10s and an E40D 4 speed, w/ 173,000 miles.
So far I've:
Replaced the ball joints, all u-joints, had the transmission rebuilt including all upgrades, had the fuel pump rebuilt, new ten ply tires all around, new return lines o-rings and caps, new fuel filter, and re-wired most of the truck.
Here's what she does:
19 mpg on the highway (bob-tail)
11.3 mpg pulling a 29" fifth wheel (7700# dry, probably 8500# headed for the camp grounds)
While towing the old girl:
Had plenty of low end torque.
Struggled on long grades (probably 5% to 7%), but was able to stay above 50 mph at about 2300 to 2500 rpm. (I got the best of my marine diesels at about 75% of max. rpm. I assume it's the same on the road)
Here's my concerns:
If I pull the trailer at altitude (say above 2500' without a turbo) will I be able to pull any kind of hill?
Will a turbo increase cylinder pressure enough to add to cavitations problems?
If I add a small turbo (maybe 5 to 7 psi) will I fry an engine that runs 21.5 to 1?
Is there a splitter on the market that will drop less than 17% cause I don't think I need that much?
Is there a transmission controller that replaces the factory model, or do they all just add on?
If I monitor exhaust and transmission temperature will it give me all the information I need to protect my truck?
Thanks in advance for all info.
So, here's what I got:
1991 F250 4x4, extended cab, 7.3 idi w/ 4.10s and an E40D 4 speed, w/ 173,000 miles.
So far I've:
Replaced the ball joints, all u-joints, had the transmission rebuilt including all upgrades, had the fuel pump rebuilt, new ten ply tires all around, new return lines o-rings and caps, new fuel filter, and re-wired most of the truck.
Here's what she does:
19 mpg on the highway (bob-tail)
11.3 mpg pulling a 29" fifth wheel (7700# dry, probably 8500# headed for the camp grounds)
While towing the old girl:
Had plenty of low end torque.
Struggled on long grades (probably 5% to 7%), but was able to stay above 50 mph at about 2300 to 2500 rpm. (I got the best of my marine diesels at about 75% of max. rpm. I assume it's the same on the road)
Here's my concerns:
If I pull the trailer at altitude (say above 2500' without a turbo) will I be able to pull any kind of hill?
Will a turbo increase cylinder pressure enough to add to cavitations problems?
If I add a small turbo (maybe 5 to 7 psi) will I fry an engine that runs 21.5 to 1?
Is there a splitter on the market that will drop less than 17% cause I don't think I need that much?
Is there a transmission controller that replaces the factory model, or do they all just add on?
If I monitor exhaust and transmission temperature will it give me all the information I need to protect my truck?
Thanks in advance for all info.