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RX7 550cc Injector

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Old Jun 8, 2006 | 12:23 AM
  #1  
Vboostec's Avatar
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Default RX7 550cc Injector

Hi guys,

Is this injector can be fit to my y8? Its 550cc and saturated and good for my 300whp goal. and i can get it cheap from local junk yard shop.

If can, anybody here has using it? any fitment issue?

Thanks.
Old Jun 8, 2006 | 01:49 PM
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strandmo's Avatar
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Default Re: RX7 550cc Injector

Hey don't take my word on this but since no one is responding ill give it my best shot... I believe those injectors will work fine with some minor adjustments. If I recall you just need to bore out the o-ring. Anyone care to help me out?
Old Jun 8, 2006 | 05:33 PM
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Default Re: RX7 550cc Injector

Get the injector clips also because the honda ones might not fit them.
Old Jun 9, 2006 | 12:18 AM
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Default Re: RX7 550cc Injector

you'll also need to find 2 donor rx7's. Only one set (primary or secondary) are 550's. the others are 320 or something
Old Jun 9, 2006 | 01:33 AM
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Default Re: RX7 550cc Injector

Originally Posted by sohcpwr
you'll also need to find 2 donor rx7's. Only one set (primary or secondary) are 550's. the others are 320 or something
There are two systems. One system used two seperate sizes 550 and 8xx I think, way huge. The other used all 460cc injectors. I beleive that the 460 ones plug into the Honda clips.
Old Jun 10, 2006 | 12:08 PM
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Heath's Avatar
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Default Re: RX7 550cc Injector

My fd had 550 primaries and 850 secondaries before I went to 1600's. They are side feed. Some of the fc injectors may work for you (?) but be careful because some are high impedence and others are low impedence.
Old Jun 11, 2006 | 09:13 PM
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Default Re: RX7 550cc Injector

Its a top mount type and has 13ohm, so it should be saturated. The guy offer me a set/4 units.

If i had an option between saturated and peak/hold type injector, which one should i choose and why?

Thanks guys for your replys.
Old Jun 11, 2006 | 09:18 PM
  #8  
Chris Harris's Avatar
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Default Re: RX7 550cc Injector

Originally Posted by Vboostec
If i had an option between saturated and peak/hold type injector, which one should i choose and why?
Choose whatever your car is wired for already. No sense in adding a resistor box if you car didnt come with one or vice-versa.
Old Jun 12, 2006 | 01:45 AM
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Default Re: RX7 550cc Injector

Originally Posted by xenocron
Choose whatever your car is wired for already. No sense in adding a resistor box if you car didnt come with one or vice-versa.
Not like it is a huge problem to add resistors, but all things being equal (ie price, availability ect) go with the ones that match your car. Some people say that there are differences once you get into the larger injectors like 1000cc+, but I don't have any first hand knowledge of that.
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