sohc intake/wrx injectors

freeride · 10-28-2009, 07:07 PM

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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VIsubi · 10-28-2009, 07:15 PM

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...

legacydreamz · 10-28-2009, 10:33 PM

cuz the wrx injectors can be modded to put out a lot more than 550cc and can be had cheaper?

ummm, i dont know...

BAN SUVS · 10-28-2009, 10:54 PM

Quote:

Originally Posted by VIsubi

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.

ShlowShtuph · 10-29-2009, 12:29 PM

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.

Odyknuck · 10-29-2009, 12:44 PM

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.

freeride · 10-31-2009, 06:17 PM

I had some o rings from subaru but wasn't sure which ones I should use...all rs or all wrx..

Safir · 11-01-2009, 07:14 AM

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?

VIsubi · 11-01-2009, 07:42 PM

Quote:

Originally Posted by BAN SUVS

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...

BAN SUVS · 11-01-2009, 10:01 PM

Quote:

Originally Posted by VIsubi

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?

10-28-2009, 07:07 PM	#1
freeride Scooby Newbie Member#: 49783 Join Date: Dec 2003 Chapter/Region: E. Canada Location: Ancaster, Ontario Vehicle: 2000 2.5rsti&98wagon SRP/white	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. * Registered users of the site do not see these ads.

10-29-2009, 12:44 PM	#6
Odyknuck Scooby Newbie Member#: 192866 Join Date: Oct 2008 Location: Rome, Ohio Vehicle: 2006 Impreza Blue	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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10-28-2009, 07:15 PM	#2
VIsubi Scooby Specialist Member#: 187834 Join Date: Aug 2008 Vehicle: 06 2.5i impreza Red	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...

10-28-2009, 10:33 PM	#3
legacydreamz Scooby Specialist Member#: 92423 Join Date: Jul 2005 Chapter/Region: Tri-State Location: locked in the freezer Vehicle: 2002 WRX still locked in freezer	cuz the wrx injectors can be modded to put out a lot more than 550cc and can be had cheaper? ummm, i dont know...

10-29-2009, 12:29 PM	#5
ShlowShtuph Scooby Newbie Member#: 188240 Join Date: Aug 2008 Location: Brooks, Ky Vehicle: 95.5 Impreza MAaarooooon	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.

10-31-2009, 06:17 PM	#7
freeride Scooby Newbie Member#: 49783 Join Date: Dec 2003 Chapter/Region: E. Canada Location: Ancaster, Ontario Vehicle: 2000 2.5rsti&98wagon SRP/white	I had some o rings from subaru but wasn't sure which ones I should use...all rs or all wrx..

11-01-2009, 07:14 AM	#8
Safir Scooby Guru Member#: 3873 Join Date: Jan 2001 Location: Tampa, FL Vehicle: . Paradise is like Disney with hookers	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?