RX-7 550 Injectors? Which style?

[chriso]

Does anyone know what size/part number the correct RX-7 injectors (550cc)are supposed to be to plug and play on the 7MGTE 87 Supra. I have heard two different versions of this theory and just wanted to resurrect a thread to finally put this to rest.

 

[Jason T]

?ND made some low impedance 550s which are direct fit for the MKIII's fuel rail. Their part number is: 195500-1370. BE CAREFUL! for some reason ND used this same part number for their high impedance 450cc injector too. How do you distingush between the two? Look at the notch on the top of the injector connector-if it is in the center its low impedance, if its offset to the side, its high impedance.

http://www.supras.com/06/techcenter/display.php?QID=21&wcal4ulogin=737308436fe12fdbb9aa20739c2da784

 

[shaeff]

http://www.mkiiitech.com/forums/viewtopic.php?t=84

-shaeff

 

[suprra_girl]

yep that information is correct... i've just had the same problem 195500-1370 got 4 of em for free... high resistance (planned to remove resistor pack)
got another 2 same part number but are low impedance grrrr so i'm sticking with 440's till i find another 2 high impedance
so i have 4 low impedance 550's one injector is more than likely dead so i've been told... so basically i have 3 which i was gonna get them all cleaned & flowtested

 

[turbomk3]

so what clips do you get that would allow you to use the ND injectors and can you buy them new from a mazda dealer?

 

[suprra_girl]

here's a good site for injectors
http://www.witchhunter.com/injectordata1.htm

 

[cruzinbill]

witchhunter also does a damn good job with their cleaning and rebuilding for a really competitive price