Gas vs PSD
Logistics Pro
Joined: Aug 2007
Posts: 3,974
Likes: 18
From: Millersburg, OH
https://www.ford-trucks.com/forums/8...ml#post8634179
Postmaster
Joined: Apr 2006
Posts: 3,524
Likes: 2
From: CA Bay Area
Nice of you keeping the track 
Ask me, I can barely remember what I wrote 2000 replies back
Thanks for info on newer cdi on the market. Are they really making 25 mpg like the old Sprinters cdi do?
Bottom line, in this topic we are comparing 230 hp engine that weights 900 lb.
That pound per pound is more the technology of 1970's
Ask me, I can barely remember what I wrote 2000 replies back
Thanks for info on newer cdi on the market. Are they really making 25 mpg like the old Sprinters cdi do?
Bottom line, in this topic we are comparing 230 hp engine that weights 900 lb.
That pound per pound is more the technology of 1970's
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
I have and it sucked. When i was young and dumb(still applies today), I was changing the fuel filter on my 94 ranger in the auto hobby shop in my BDU's on my lunch break. I had never done it before and didnt think to pinch off the lines. I pulled that sucker out and gas shot down my arm, into my armpit!! you talk about burn!!
i had to go home and take a shower and soak my armpit.
just thought i'd throw a funny story in all this madness.
i had to go home and take a shower and soak my armpit. just thought i'd throw a funny story in all this madness.
The way to do it is pull the fuel pump fuse, then start the truck.
After a couple seconds it will die, and the lines are no longer under pressure.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Posting Guru
Joined: Aug 2009
Posts: 1,058
Likes: 0
From: emporium
and the 7.3 is the bestest
The coil is $40, and a small error will not destroy one.
Good plugs are $3.
Good plugs are $3.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Is horse power per pound really a good way to measure an engines technological advance? tractor-trailer engines are some of the most high tech engines around, they usually top around 500-600HP and almost always weigh in excess of 3000 lbs.
Horsepower/Pound might be relevant in compact truck and passenger car applications where keeping weight down is a priority - but not in a full sized pickup or other heavy duty applications where the engine is expected to be under extreme load for perhaps all its life. They can spare the extra weight of a heavier built engine for greater reliability.
The modular 4.6/5.4/6.8 engines are in no way lightweight gas engines either. Big blocks, big heads, big internals (relatively speaking of course), big everything. Which is why they are so longed lived.
Horsepower/Pound might be relevant in compact truck and passenger car applications where keeping weight down is a priority - but not in a full sized pickup or other heavy duty applications where the engine is expected to be under extreme load for perhaps all its life. They can spare the extra weight of a heavier built engine for greater reliability.
The modular 4.6/5.4/6.8 engines are in no way lightweight gas engines either. Big blocks, big heads, big internals (relatively speaking of course), big everything. Which is why they are so longed lived.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Is horse power per pound really a good way to measure an engines technological advance? tractor-trailer engines are some of the most high tech engines around, they usually top around 500-600HP and almost always weigh in excess of 3000 lbs.
Horsepower/Pound might be relevant in compact truck and passenger car applications where keeping weight down is a priority - but not in a full sized pickup or other heavy duty applications where the engine is expected to be under extreme load for perhaps all its life. They can spare the extra weight of a heavier built engine for greater reliability.
The modular 4.6/5.4/6.8 engines are in no way lightweight gas engines either. Big blocks, big heads, big internals (relatively speaking of course), big everything. Which is why they are so longed lived.
Horsepower/Pound might be relevant in compact truck and passenger car applications where keeping weight down is a priority - but not in a full sized pickup or other heavy duty applications where the engine is expected to be under extreme load for perhaps all its life. They can spare the extra weight of a heavier built engine for greater reliability.
The modular 4.6/5.4/6.8 engines are in no way lightweight gas engines either. Big blocks, big heads, big internals (relatively speaking of course), big everything. Which is why they are so longed lived.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
Thats funny Jeff.
Last I checked a glow plug cost $12...
Last I checked a glow plug cost $12...
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Postmaster
Joined: Apr 2006
Posts: 3,524
Likes: 2
From: CA Bay Area
The weight necessary for the engine to last is a myth IMHO.
Don't have the exact weight, but lot of those light engines in Sprinter vans/truck exceeded million miles.
while making 25 mpg.
I am just watching "Myth busters" proving that delivering with right turn only save time and fuel.
They drove over Lombard Street in San Francisco and got stuck, because gas engine in UPS truck cut off the fuel on steep grade.
Don't have the exact weight, but lot of those light engines in Sprinter vans/truck exceeded million miles.
while making 25 mpg.
I am just watching "Myth busters" proving that delivering with right turn only save time and fuel.
They drove over Lombard Street in San Francisco and got stuck, because gas engine in UPS truck cut off the fuel on steep grade.
Posting Guru
Joined: Aug 2009
Posts: 1,058
Likes: 0
From: emporium
1. spark
2. hold the plug down when it shoots out of the head
Posting Guru
Joined: Aug 2009
Posts: 1,058
Likes: 0
From: emporium
if they dont come out how do you change them. you have to buy new heads?
lol im just messing with you
do they go into the block or the heads. never saw one