2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Whats Needed With 720's?

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Old Aug 25, 2005 | 01:11 PM
  #1  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
Whats Needed With 720's?

hey guys i ordered my Rtek 1.7 and im about to order my greddy 720 secondarys. will i need anything else to order with them to make them fit/work properly? thanks alot

ps il be ordering from this site and seem to have everything

www.horsepowerfreaks.com
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Old Aug 25, 2005 | 01:26 PM
  #2  
1987RX7guy's Avatar
Eat Rice Don't Drive it.
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If they are 11mm neck drop-ins it should be fine. I believe the other size is 14mm neck those would need the neck to be filed down with a dremel or such.
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Old Aug 25, 2005 | 01:33 PM
  #3  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
"These are LOW impedance injectors (about 3 ohms). You may need to add a resistor pack or a 10 ohm 10 watt resistors to these injectors for high impedence applications. Good quality product. I needed more fuel to support more boost. These were installed in my 89 RX-7 Turbo. Be sure you have the proper o-rings, grommets and electrical connectors for these injectors. In my case, I used Mazda O-rings and grommets. The local parts store had the injector clips. It's a good idea to replace your fuel filter as well. If you replace any fuel lines, be sure to use "fuel injection" hose, not standard fuel line. Expect to pay about $1 per foot for this. The line must be stamped "fuel injection". Again, no problems with the product, just be prepared to aquire the other required items. Good Luck, Michael 89 TII"

no idea what hes talking about... lol
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Old Aug 25, 2005 | 02:05 PM
  #4  
1987RX7guy's Avatar
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From: Laredo, Tx
Sounds like you got them from an FC guy. THey should drop in.

You did make sure you got the correct impedance(sp?) right?
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Old Aug 25, 2005 | 02:10 PM
  #5  
RidicilousRx7's Avatar
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1993 Mazda RX7 R1
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From: Oshawa, Ontario
no this is a review from the website.

http://www.horsepowerfreaks.com/part..._Peak-hold/485
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Old Oct 19, 2005 | 08:39 AM
  #6  
Pinfield357's Avatar
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if they are low indepependence then you are good to go since you have an 87
the guy in the review had an 89 which should have used high indepencence injecotrs thats why he needed to use resister packs
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Old Oct 19, 2005 | 10:30 AM
  #7  
BklynRX7's Avatar
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From: brooklyn, New York
Arrow

Wwll if you find out what your doing and you need a stock resisitor pack, Pm me, $15 shipped.
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Old Oct 19, 2005 | 04:01 PM
  #8  
89gtufc3s's Avatar
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YES!!!! i was so about to start a thread on this, but anyways im in the same boat....has anyne bought their injectores from rx7.com? they also sell resistors and connectors......so for an 88 T2, do i just order 2 injectors and 2 resistors and im set?
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