Ok, it has been covered somewhat on here. I found alot of info when I was wondering if it was possible. I just wanted to add my experience.

Well today I put my 460cc injectors in my Civic. Heres a lil info from me to you. =)

A list of various RX7 Injectors
Year / motor / impedence / plug style / notch location / size / color/ part #
84-85 | 13B NT | low | square | center | 680cc | orange | 195500-0900
86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350
86-87 | 13B T | low | square | center | 550cc | tan | 195500-1370
88 | 13B NT | high | square | offset | 460cc | purple | 195500-1350
88 | 13b T | high | square | offset | 550cc | purple | 195500-1370
89-91 | 13B NT | high | oval | center | 460cc | red | 195500-2010
89-91 | 13B T | high | oval | center | 550cc | purple | 195500-2020

Make sure you check which ones youre using and which ones you need. Low impedance = Peak N Hold (need resistors), High impedance = Saturated

I had to trim down two notches on the plug area in order for my OBD1 injectos plugs to plug up. 1 was on the outside of the plug, and the second was inside the plug. The arrows point to both spots (the outside one is already shaved off). I used a dremel for the outside one, and an exacto blade for the inside one.

I test fitted them with Accord OBD0 injector plugs and I did NOT have to trim down the inside notch, because the OBD0 plugs have the space for that center notch.

My injectors came with a rubber top O-ring, top Seal, and bottom Seal.

I did NOT use the bottom seal, I used the OEM Civic bottom seals instead. I had to use my dremel to bore out the OEM bottom seal. I bored it all the way through the seal (i tried half way but it didnt work well).

I installed the bottom seal in the manifold. Installed the injectors in the rail. Then put everything back together. I had 1 injector that ended up breaking an o-ring so it leaked. =(
Took everything apart again and replaced the o-ring. No leaks the 2nd time. =)

Remember you need something to control the larger injectors so dont bolt them up and think it will work without that. =)


P.S. Thanks to those of you that caught my stupid friggin mistake! I corrected my post.

 

they look tall!

have u measured how much of the top pokes into the runner?

 

Just wanted to point out that if you are using the 2nd from the top injectors from your list like you said, those are low impedence and you DO NEED a resistor box!! Did you mean 2nd from the bottom!? (I hope so!) Better double check, or else you'll have some burnt injector drivers!

 

good catch bump! i was looking at the chart and pictures thinking something looked off... i noticed the saturated injectors say oval conector, which he has square.

 

Oh ****!!!

I had friggen read that I could use them without a resistor box. Damn... You guys are right. I am using the ones I said:
86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350

So I DO need a box with these. ----... Well, I only ran the car around the block once with them in so hopefully I didnt mess anything up.
Guess I have another project before I get my car back on the road.