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  #1  
Old 04-10-2012, 11:10 PM
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jprevette jprevette is offline
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So I'm getting new injectors for my 1996 ram and want to know whatss the biggest (p/h) I can go with mostly stock internals
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Old 04-20-2012, 12:28 PM
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Quote:
Originally Posted by jprevette View Post
So I'm getting new injectors for my 1996 ram and want to know whatss the biggest (p/h) I can go with mostly stock internals
I tried a few actually and the bosch 703's everybody on the jeep forums raved about actually ran so rich they dumped a quart of fuel in my oil just running it in the driveway....
I have the dark blue 712 ones installed now and they work but i havent seen any improvements at all... and gas mileage is down...Fuel trim levels look good though.

You do realize it makes no sense to go with a bigger injector inless your running a turbo or supercharger or have stroked it? ...
The stock ones only run at about 80% of thier capacity (They can support up to 400hp) because the pcm controls the fuel flow and throttles them down so its not running too rich. The pcm doesnt throttle down the flow until it reaches closed loop mode at a certain point in the warmup cycle... and before that it runs off preprogrammed flow rates and if you put larger injectors its going to run very rich everytime you start your engine when its cold...

the only benifits can be from going to the finer mist 4 hole spray pattern of the newer generation 3 injector style...
I'm about to try yellow ford mustang ones since they have a closer to stock ohm rating and I hope they give better mpg results

Last edited by augiedoggy; 04-20-2012 at 12:39 PM.
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Old 04-30-2012, 12:09 PM
jprevette's Avatar
jprevette jprevette is offline
Dodge Ram Forum Member
 
Join Date: Feb 2012
Location: midway nc
Age: 22
Posts: 65
Gender: Male
Vehicle: 1996 dodge ram 1500
Trim Level: slt
Color: white
Engine: 1994-2001 318ci (5.2L) Magnum V8 220hp
Rep Power: 0
Rep:10
jprevette is on a distinguished road
Default

Quote:
Originally Posted by augiedoggy View Post
I tried a few actually and the bosch 703's everybody on the jeep forums raved about actually ran so rich they dumped a quart of fuel in my oil just running it in the driveway....
I have the dark blue 712 ones installed now and they work but i havent seen any improvements at all... and gas mileage is down...Fuel trim levels look good though.

You do realize it makes no sense to go with a bigger injector inless your running a turbo or supercharger or have stroked it? ...
The stock ones only run at about 80% of thier capacity (They can support up to 400hp) because the pcm controls the fuel flow and throttles them down so its not running too rich. The pcm doesnt throttle down the flow until it reaches closed loop mode at a certain point in the warmup cycle... and before that it runs off preprogrammed flow rates and if you put larger injectors its going to run very rich everytime you start your engine when its cold...

the only benifits can be from going to the finer mist 4 hole spray pattern of the newer generation 3 injector style...
I'm about to try yellow ford mustang ones since they have a closer to stock ohm rating and I hope they give better mpg results

it was kind of a in the moment idea and i thought about it and realized it was pointless
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