Plugging primary injector holes when converting from EFI

scotty305 · 11-22-2008, 03:28 AM

Hey guys, the center iron on my 1994 13B-REW motor has two holes for primary injectors. I'd like to plug these shut, and from what I've gathered there are a few ways to do this:

1. Leave OEM primary injectors there and hope they don't create a vacuum leak.

2. Racing Beat injector plugs

3. Mazda Racing injector plugs

4. I've heard that other setups might exist also, but haven't spent too much time looking yet.

I'm hoping to get opinions, suggestions, and/or reviews from people who have used any of these methods. I'd like to do something that is easily removable for now, in case I might want to convert back to stock.

Thanks,
Scott

Jeff20B · 11-22-2008, 11:14 PM

Rogue Wulff has a nice looking injector blockoff kit. He's on this forum.

Rogue_Wulff · 11-23-2008, 03:14 PM

Quote:

Originally Posted by Jeff20B

Rogue Wulff has a nice looking injector blockoff kit. He's on this forum.

I wish I could say I made mine. Cause I could prolly sell a few of them, with the "NO PISTON" logo engraved into it.
Aside from being black in color, and a little thicker at the top (along with the custom engraving), it looks quite similar to the RB injector blockoff. I can't remember 100% for sure, but I believe it has the letters "M R" beside the no piston logo. Mazda Racing perhaps?

scotty305 · 11-25-2008, 11:43 PM

Thanks, guys.

Rogue_Wulff, got any photos?

-s-

Rogue_Wulff · 11-25-2008, 11:58 PM

Sorry, no pics. Camera broke, and I'm too cheap to buy another right now......

Garfinkles Motor Works · 11-26-2008, 09:42 AM

I made some many years ago ,the test manifold with a carb is in storage .It was used to start EFI motors on the test stand .

KGParts · 11-29-2008, 07:03 AM

put the "dead" (no connection) injectors in and plug the rail with easy to find threaded plugs.

scotty305 · 11-30-2008, 11:19 PM

Thanks for all the advice guys, I'll probably start with the method suggested by KGParts unless I stumble across a very cheap set of RB or Mazda Racing plugs.

3rd and final 7 · 03-08-2009, 06:24 PM

Quote:

Originally Posted by scotty305

Thanks for all the advice guys, I'll probably start with the method suggested by KGParts unless I stumble across a very cheap set of RB or Mazda Racing plugs.

i should still have a set that im not using, shot me a pm

bwaits · 06-28-2009, 08:23 PM

Freeze plugs work great and are cheap as well as removable.

-billy

11-22-2008, 03:28 AM	#1
scotty305 Rotary Fan in Training Join Date: Mar 2008 Location: Culver City, CA Posts: 84 Rep Power: 18	Plugging primary injector holes when converting from EFI Hey guys, the center iron on my 1994 13B-REW motor has two holes for primary injectors. I'd like to plug these shut, and from what I've gathered there are a few ways to do this: 1. Leave OEM primary injectors there and hope they don't create a vacuum leak. 2. Racing Beat injector plugs 3. Mazda Racing injector plugs 4. I've heard that other setups might exist also, but haven't spent too much time looking yet. I'm hoping to get opinions, suggestions, and/or reviews from people who have used any of these methods. I'd like to do something that is easily removable for now, in case I might want to convert back to stock. Thanks, Scott

11-29-2008, 07:03 AM	#7
KGParts Rotary Fan in Training Join Date: Mar 2008 Posts: 66 Rep Power: 18	put the "dead" (no connection) injectors in and plug the rail with easy to find threaded plugs. __________________ RX7 Fuel Systems www.KGParts.com ------------------------------------------- Fuel Injector Flow Testing & Cleaning Service www.Injector-Rehab.com

06-28-2009, 08:23 PM	#10
bwaits Talk - Action = Nothing Join Date: Feb 2008 Posts: 166 Rep Power: 18	Freeze plugs work great and are cheap as well as removable. -billy __________________

11-22-2008, 11:14 PM	#2
Jeff20B Rotary Fanatic Join Date: Mar 2008 Posts: 215 Rep Power: 18	Rogue Wulff has a nice looking injector blockoff kit. He's on this forum.

11-25-2008, 11:43 PM	#4
scotty305 Rotary Fan in Training Join Date: Mar 2008 Location: Culver City, CA Posts: 84 Rep Power: 18	Thanks, guys. Rogue_Wulff, got any photos? -s-

11-25-2008, 11:58 PM	#5
Rogue_Wulff Non Member Join Date: Jun 2008 Posts: 310 Rep Power: 18	Sorry, no pics. Camera broke, and I'm too cheap to buy another right now......

11-26-2008, 09:42 AM	#6
Garfinkles Motor Works RCC Contributor Join Date: Mar 2008 Posts: 535 Rep Power: 18	I made some many years ago ,the test manifold with a carb is in storage .It was used to start EFI motors on the test stand .

11-30-2008, 11:19 PM	#8
scotty305 Rotary Fan in Training Join Date: Mar 2008 Location: Culver City, CA Posts: 84 Rep Power: 18	Thanks for all the advice guys, I'll probably start with the method suggested by KGParts unless I stumble across a very cheap set of RB or Mazda Racing plugs.