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Old 10-28-2009, 07:07 PM   #1
freeride
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Default sohc intake/wrx injectors

which O rings do I need. I have heard rs tops for the fuel line rail and then wrx bottoms for the block.

Is there 2 o rings on the bottom?

2000 rst

cheers.
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Old 10-28-2009, 07:15 PM   #2
VIsubi
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um why not just order the 550cc top feed from rallitek for a good price that will work PnP your trying to make a hybrid injector which I see issues down the line...
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Old 10-28-2009, 10:33 PM   #3
legacydreamz
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cuz the wrx injectors can be modded to put out a lot more than 550cc and can be had cheaper?


ummm, i dont know...
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Old 10-28-2009, 10:54 PM   #4
BAN SUVS
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Quote:
Originally Posted by VIsubi View Post
um why not just order the 550cc top feed from rallitek for a good price that will work PnP your trying to make a hybrid injector which I see issues down the line...
Actually, plugging WRX topfeeds into an RS works perfectly well. If you only need fuel that can be provided by practically free injectors, why buy anything else?

OP, I can't recall the exact O-ring combo you need, but if you ping Rallitek they'll be able to tell you.
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Old 10-29-2009, 12:29 PM   #5
ShlowShtuph
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Call Rallitek and tell them you need the o-ring kit for wrx injectors in an RS manifold. I'm using aftermarket rails so I can't say anything about the top but I had to use that kit for my bottom rings. good luck.
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Old 10-29-2009, 12:44 PM   #6
Odyknuck
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The 2000 uses the air assist Injectors so the ports are longer. I ended up using 2 of the Raliteck "O" rings on the bottom and the stock "O" rings on the top of my aftermarket fuel rails. Something to think about is because the WRX Injectors are shorter and are farther up into the Manifild the fuel hits the side of the hole and tends to puddle. I notice popping when I let off the throttle from unburnet fuel. I am assumming this is the cause. The Injectors shut off however the Ignition does not.

Last edited by Odyknuck; 10-29-2009 at 03:26 PM.
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Old 10-31-2009, 06:17 PM   #7
freeride
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I had some o rings from subaru but wasn't sure which ones I should use...all rs or all wrx..
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Old 11-01-2009, 07:14 AM   #8
Safir
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WRX bottom and RS top makes the most sense to me. if you have all of them on hand, why not just try a few combinations and see waht works?
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Old 11-01-2009, 07:42 PM   #9
VIsubi
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Quote:
Originally Posted by BAN SUVS View Post
Actually, plugging WRX topfeeds into an RS works perfectly well. If you only need fuel that can be provided by practically free injectors, why buy anything else?

OP, I can't recall the exact O-ring combo you need, but if you ping Rallitek they'll be able to tell you.
Cause being cheap with your car usually results in an expensive job afterwards.Unless your sending them off to flow more not a wise thing to do it yourself. Also why would you use old used injectors instead of rebuilt or brand new ones..the idea still hasn't sunk in yet maybe its me but I'll stick with brand new never used and warranty...
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Old 11-01-2009, 10:01 PM   #10
BAN SUVS
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Quote:
Originally Posted by VIsubi View Post
Cause being cheap with your car usually results in an expensive job afterwards.Unless your sending them off to flow more not a wise thing to do it yourself. Also why would you use old used injectors instead of rebuilt or brand new ones..the idea still hasn't sunk in yet maybe its me but I'll stick with brand new never used and warranty...
Um, you've got used injectors every time you run your engine after the first time they open and close. And if X injectors have the flow you need for your power levels, it's not being cheap. Why spend $400 for injectors when a set you can get practically for free does the job perfectly well?
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