MP3 injectors, 2 different colors/parts

[changedman]

Whats the deal with the MP3 fuel injectors, for my nitrous we took the fuel rail apart to tap it and saw that injectors #1 and #2 were purple and #3 and #4 were green, and they are two different part #s on them, whats the deal? the guy at the motor place asked me if i changed something, I said its stock. One has more flow? Fill me in those who know.
thanks!

 

[KYREDP5]

My P5 is the same way. I keep meaning to ask someone about it but I keep forgetting.

 

[Mike R]

I was wondering the same thing. Might be that two of the cylinders run lean or rich and they needed to compensate, but I dunno....

 

[ForceFed]

I was wondering the same thing. Might be that two of the cylinders run lean or rich and they needed to compensate, but I dunno....

This sounds correct.Different colors usually do indicat different flow rates!
Matt

 

[changedman]

right, so maybe 3 and 4 have higher flow for higher RPMs and diff applications, because 3 and 4 are mostly the ones that get caught running lean.

 

[freekwonder]

how would you check the flow rate of injectors?

 

[03MSP86]

Bringing back an old thread.......

Does anyone have a reason for the different colors? Has it been confirmed different flow rates?

 

[tweety2300]

Sub ive always been curious about this