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93dakman
Dodge Dakota
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10/15/2003
22:23:33
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 Subject: Adding a fifth fuel injector
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Ok Ok, I know you all like the idea of adding Ford injectors on your trucks to get more fuel right? Well there are a couplle of reasons why I do not like that idea: One reason is the VERY bad fuel mileage, next is that it cost alot, and finally, I Don't wank Ford parts on my truck, so heres my solution.
I know our trucks aren't turbo, but adding an extra injector into the intake tube would do the trick. Not a pulsing injector, but a on/off injector from a SAAB. It wouldnt be on all the time, but with a WOT switch, that would do what we want it to do. I think its a good idea, so please don't flame me untill you have read these two websites:
http://www.xmission.com/~dempsey/perform/injector.htm
http://www.thedodgegarage.com/turbo_extrainj.html
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Mark green 92
Dodge Dakota
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10/16/2003
00:34:11
| RE: Adding a fifth fuel injector
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This is not a flame but you might want to know that the injectors on your truck are probably manufactured by Bosch and may have come off the same assembly line as the "ford" injectors. Early magnum motors used these and if not them they are Siemens injectors, and the same line there produces ford injectors also but there is a key difference. The ford spec. Bosch injectors are a 4 hole proprietary design which should atomize the fuel better all other things being equal. A word of caution on using a cold start injector(Bosch again) on the magnum motors. These intakes are a dry intake design, not designed to flow fuel. When you look into the manifold you see the bottom of the intake and no runners. I'm sure some fuel will be drawn in by engine vacuum, but I think it will also puddle on the intake floor and this could be disastrous if the pan gasket is leaking. Remember that those people using a wet nitrous system only add fuel when on boost and there could be some mixture problems from a single fuel source. If you really want more fuel you can remove your fuel pressure regulator(didn't the 93's have the fuel return on the rail?) and SLIGHTLY compress the can squarely with a socket and increase pressure. Be careful you are in uncharted territory and it is easy to mess up , maybe start with a salvage yard part so you have a backup. Higher fuel pressure will shorten up injector on time as compensated by the computer until WOT, then watch for fouling plugs!
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Shank
GenII
 
10/16/2003
00:35:24
| RE: Adding a fifth fuel injector
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Interesting reading....
With the Intake I Modified (Butchered) I'm thinkin I'm gonna have a problem with Too Much Air. A 7th Injector mounted in the top center should give me the extra fuel I need. Jeesh I'm skeered to see what my fuel mileage will be.
Thx 4 the Tip,
Shank
Next time a Honduh wants to race
Ask him how many sheets of plywood he can haul?
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J and J Auto
GenII
10/16/2003
09:52:45
| RE: Adding a fifth fuel injector
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spray nitrous through it.
The FMS injectors help mileage
Larry
J&J Auto
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IntenseDak39
*GenIII*
10/16/2003
11:53:41
| RE: Adding a fifth fuel injector
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"Adding a fifth fuel injector"
shouldnt you already have a fifth injector? and sixth?
the turbo guys at sdml use to do that all the time... add the injector right after the intercooler on their turbo shelbys
400 BB * Crower .513/.513 290/300 cam * 452 heads * Double roller chain * Weiand TG Intake * MP windage tray * Comp Cams Valve Springs * Crane Pushrods * CAT 1.5 RR * MP Bolt set * MP Chrome Dipstick * MP Chrome Timing Cover * MP Wrinkle Valve Covers - modified * MP Electric Distributor Kit
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JoJo Bean
Dodge Dakota
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10/16/2003
14:23:51
| RE: Adding a fifth fuel injector
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Maybe he has the 4 cylinder Dak?
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IntenseDak39
*GenIII*
10/16/2003
15:59:41
| RE: Adding a fifth fuel injector
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well... i figured six cylinder because it was posted under the six cylinder forum
400 BB * Crower .513/.513 290/300 cam * 452 heads * Double roller chain * Weiand TG Intake * MP windage tray * Comp Cams Valve Springs * Crane Pushrods * CAT 1.5 RR * MP Bolt set * MP Chrome Dipstick * MP Chrome Timing Cover * MP Wrinkle Valve Covers - modified * MP Electric Distributor Kit
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93dakman
Dodge Dakota
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10/16/2003
19:54:14
| RE: Adding a fifth fuel injector
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No, I have the V6, I just screwed up. I meant to put seventh. How do the Ford injectors increses gas mileage? I think that a extra injector only at WOT would make things better with my Homebrew CAI.
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GB2000
Dodge Dakota
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10/16/2003
21:13:13
| RE: Adding a fifth fuel injector
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From Mark Green 92's post:
"The ford spec. Bosch injectors are a 4 hole proprietary design which should atomize the fuel better all other things being equal."
Josh
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IntenseDak39
*GenIII*
10/16/2003
21:13:16
| RE: Adding a fifth fuel injector
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Unless you are boosted... it would be kinda a waste. The stock injectors keep you plenty rich. At least mine was running just a little rich on my dyno's i had done
400 BB * Crower .513/.513 290/300 cam * 452 heads * Double roller chain * Weiand TG Intake * MP windage tray * Comp Cams Valve Springs * Crane Pushrods * CAT 1.5 RR * MP Bolt set * MP Chrome Dipstick * MP Chrome Timing Cover * MP Wrinkle Valve Covers - modified * MP Electric Distributor Kit
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