2.3L Anyone out there actually swapped their injectors for bigger ones?

[arownious]

Just wanted to get actual testimonies from people who have actually done this and what the results were. Also, what other mods they made along with the injector swap. Thanks!

 

[wtn4x4]

I would also like to know about that. I have heard a lot about this and it seems to make sense. Considering the increase in power from 94 to the 95 the only real change is obd2 and larger injectors.

 

[BlackBII]

Larger injectors = more fuel.

What are you doing about getting more Air into the motor to compensate???

 

[Bryan22]

the increase in power from 94-95 was due to the increased compression, and has nothing to do with injector size. i really doubt you'll notice any difference in power at all unless you can figure out a way to tune the computer. Which is a PITA on obd1.

also as black b2 said unless you get more air into the motor, you're never gonna need more fuel. Maybe some head work combined with the larger injectors and a tune... then you might see a difference. have fun.

 

[arownious]

I apologize for not including that, but yes the air is a given. I'll be installing the Volant cold air intake and most likely P&Ping the head.

Also I'm almost certain my 95 ranger is an ODBII.

This is where I get the info from and this guy is driving a 92 I believe with an ODBI

http://www.cadvision.com/blanchas/Ranger/efi.html

 

[wtn4x4]

Are you sure they increased the compression in 94? That would make sense with obd2 having a potentially better management of the engine. However what I am proposing is that the 93-94 ranger is limited by fuel not air. Maybe I am wrong, but on steady hills I can feel an increase (however slight) in power by not flooring the pedal. Which to me would indicate that there is a lack of fuel and the a/f ratio is producing a less than ideal explosion.

 

[BlackBII]

The Ranger has a cold air intake from the factory. A port and polish job may increase the flow rate of air into the motor at a very high rpm, but that's it, and your computer will compensate with more fuel. Without internal engine mods or forced induction, the volume of air is not going to be substantially increased to a level where you will need higher flowing injectors.

If you think your truck is running lean when the throttle is fully open, you might have a faulty sensor or two, or dirty/bad spraying injectors (bad grounds, corrosion on injector terminals..etc)

Without forced induction and or internal engine mods, putting higher flowing injectors in will do nothing but make your truck run pig rich and like shit.



Oh, and there is no explosion....merely a 'burn'. Explosions are bad, and are referred to as 'detonation'. Detonation comes from too low of an octane on high compression motors, too much boost, too hott of air...etc. They can break pistons apart.

 

[Bryan22]

Are you sure they increased the compression in 94? That would make sense with obd2 having a potentially better management of the engine. However what I am proposing is that the 93-94 ranger is limited by fuel not air. Maybe I am wrong, but on steady hills I can feel an increase (however slight) in power by not flooring the pedal. Which to me would indicate that there is a lack of fuel and the a/f ratio is producing a less than ideal explosion.

no, they increased compression in 95. not with the pistons but with a smaller combustion chamber, that's where the 2 extra hp comes from.

 

[4b316]

We have run yellow tops for a few years in the race truck and last year went to the redtops.We have direct ram air in the grill and a "opened up" stock MAF.If you can find a old Grassroots motorsports magizine,they have a dyno chart on a 93 or 94 mustang with different changes,Ranger header,injectors,adj.timing etc. Gray=14lbs,yellow=19,lt blue=24,red=30 and green=60

 

[arownious]

Are you sure they increased the compression in 94? That would make sense with obd2 having a potentially better management of the engine. However what I am proposing is that the 93-94 ranger is limited by fuel not air. Maybe I am wrong, but on steady hills I can feel an increase (however slight) in power by not flooring the pedal. Which to me would indicate that there is a lack of fuel and the a/f ratio is producing a less than ideal explosion.

I've heard this exact thing from several people and places, but I think it may have changed for the 95s for someone reason. Guess I'll find out when I put the better cold air intake in and actuall P&P the head.

The Ranger has a cold air intake from the factory. A port and polish job may increase the flow rate of air into the motor at a very high rpm, but that's it, and your computer will compensate with more fuel. Without internal engine mods or forced induction, the volume of air is not going to be substantially increased to a level where you will need higher flowing injectors.

If you think your truck is running lean when the throttle is fully open, you might have a faulty sensor or two, or dirty/bad spraying injectors (bad grounds, corrosion on injector terminals..etc)

Without forced induction and or internal engine mods, putting higher flowing injectors in will do nothing but make your truck run pig rich and like shit.

So I'm guessing that the 14lb injectors that are on it aren't running at 'max capacity'? Why was the 2.3 so restrictive when it came to sucking air? Is the intake manifold a piece of crap or something? Or is it just the head not matching the intake and so more than a P&P is necessary?