| From | Message |
94 dak
Dodge Dakota
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8/02/2011
19:55:59
|
 Subject: injectors
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Message:
i read on here that you can use ford injectors on
these motors.. i have a 94 3.9... can you really
just swap it out and everything work fine? it cant
be that simple can it? and what injectors would i be
looking for if it is...
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Curly
Dodge Dakota
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8/03/2011
00:31:17
| RE: injectors
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Message:
Yepp, 4 Hole injectors is what you want.
The ones right out of a Ford 4.6 19lb injectors.
(do not get larger then 19 lb injectors)
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daddio
Dodge Dakota
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8/03/2011
06:59:46
| RE: injectors
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Message:
check out www.fiveomotorsports.com they have a list of what injectors fit on the different years and engines. You can even give tham a call if you need any help picking them out.
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94 dak
Dodge Dakota
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8/03/2011
13:00:55
| RE: injectors
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Message:
thank you both.. but will this have any other effect
on the motor other that more fuel useage and more
balls?
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daddio
Dodge Dakota
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8/03/2011
13:18:00
| RE: injectors
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Message:
Actually, your fuel mileage should improve and the engine should also run smoother. The New Design 4 hole injector can control the fuel flow better. Even though they can flow more than the stock ones, they'll have less duty cycle and should last longer. Better fuel control = better MPG.
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94 dak
Dodge Dakota
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8/03/2011
15:17:32
| RE: injectors
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Message:
out of curiosity do you know what happens if 19lbs
is exceeded?
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daddio
Dodge Dakota
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8/03/2011
17:13:25
| RE: injectors
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Message:
I'm not sure what you mean? That 19lbs has to do with the max flow rate for the injectors which is 19lbs per hour. Which is probably rated at about 80% duty cycle.
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94 dak
Dodge Dakota
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8/03/2011
19:01:31
| RE: injectors
IP: Logged
Message:
oh ok.. and i meant what if i had gotten 22lb
injectors instead of the 19lb suggested what would
the result be? insufficient fuel flow? misfire at
higher rpms?
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daddio
Dodge Dakota
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8/03/2011
19:51:59
| RE: injectors
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Message:
You would porbably be wasting your money. I am not sure if the stock PCM program could trim the injector pulse enough to compensate for the higher flow rate injector. Starting in '00 DC put 21lb/hr injectors in all the 3.9's and 5.9's. You woould probably waste fuel. Stick with 19lb/hr. Those will support way more horsepower than the 3.9 can roduce. Unless you're going to ad some forced induction.
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94 dak
Dodge Dakota
JOIN HERE
8/03/2011
23:06:05
| RE: injectors
IP: Logged
Message:
no no its a daily driver.. i was just curious as to
the outcome. thank you daddio you have been a great
help.. not just on this thread a do follow you on
some others as well i like your advice. as well as
many others not trying to play favorites.. you just
respond to more of the ones i am looking at
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Curly
Dodge Dakota
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8/03/2011
23:41:17
| RE: injectors
IP: Logged
Message:
It would run rich as h*ll & stumble if it runs at
all.
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