Question about torque multiplication
Junior User
Joined: Jan 2006
Posts: 88
Likes: 0
From: sw Ohio
My thinking on the computer controlled engine is that: The engine can be lugged more because the timing can be precisely programmed. The fuel mixture can be tuned for economy at cruise, and power at W.O.T.
I am assuming here that you do not have to keep a cat. converter 'happy'.
Big cu. V8's get a bad rap because they are usually paired with either an:
auto trans. or 4WD or heavy vehicle or an aerodynamically inefficient vehicle (high ground clearance, wide bias ply tires, barn door front) or stump puller gears or heavy loads or lead foot or all of the above.
I can't blame any of these on the engine. True, Big cubes are less efficient when they are to big for the job.
My choice:
Small engine with lots of gears.
I am assuming here that you do not have to keep a cat. converter 'happy'.
Big cu. V8's get a bad rap because they are usually paired with either an:
auto trans. or 4WD or heavy vehicle or an aerodynamically inefficient vehicle (high ground clearance, wide bias ply tires, barn door front) or stump puller gears or heavy loads or lead foot or all of the above.
I can't blame any of these on the engine. True, Big cubes are less efficient when they are to big for the job.
My choice:
Small engine with lots of gears.
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 135
Likes: 0
From: northwest Georgia
What about instead of a cummins out of a dodge truck, a 4bt? How expensive are those and would one give me enough power to pull that boat and still run at 70 down the interstate? How long do they last?
Junior User
Joined: Jan 2006
Posts: 88
Likes: 0
From: sw Ohio
The cummins is a good engine. It requires at least a 3/4 ton to hold the weight. My son has got a 460intercepter/C6 in a 74 ranger and gets 18MPG on the freeway. High rear, and light truck.
Last edited by jbbmw; Oct 1, 2007 at 03:48 PM.
Thread Starter
|
Senior User
Joined: Jan 2006
Posts: 135
Likes: 0
From: northwest Georgia
well, the bronco weighs about 5500 lbs i think, so not light. The rear end is about middle of the road at 3.54 but the highway driving is only a small part of what i want it to do. But 18 is about double of what i usually here them getting and 13mpg is the most ive ever heard them get so that 18 is awesome.
Thread
Thread Starter
Forum
Replies
Last Post
RacinNdrummin
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
52
Dec 9, 2016 11:24 AM
Huntersbo
Performance & General Engine Building
8
Aug 3, 2012 07:31 PM
BadDogKuzz
1999 - 2003 7.3L Power Stroke Diesel
41
Jan 28, 2012 10:45 AM
Silver Streak
Ford Inline Six, 200, 250, 4.9L / 300
32
Aug 12, 2003 06:02 PM
