Performance Fuel Injectors

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d3v0
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Joined: Thu May 31, 2007 1:46 pm
Car: 2006 Subaru Impreza WRX STI

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Where could i find some performance fuel injectors for my car?


brianw
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The stock VQ30DE injectors are good to something like 350whp with elevated fuel pressure (as most turbo/supercharger installations do use a fuel pressure riser), you don't need to swap injectors unless you're planning on seriously big power levels.

Fitting injectors meant for a 300ZX or similar shouldn't be too hard, Nissan and aftermarket makers have pretty extensive parts catalogs.

d3v0
Posts: 23
Joined: Thu May 31, 2007 1:46 pm
Car: 2006 Subaru Impreza WRX STI

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where could i get some good ones?

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Beancooker
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From any of our parts sponsors... try Pinnacle Nissan.

brianw
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You should be able to modify 300ZX injectors to fit or SR20DE/DET, if memory serves. Stock is 270cc, 300ZX and SR20DE is 370cc. If you need bigger than that, you'll probably want to source a custom fuel rail and whatnot with RC Engineering 550cc injectors or bigger, depending on how much power you're making.

The forced induction section on .org should have a bit of info on this. Any good Nissan tuner should be able to get them for you, considering there's about a zillion Sentra SE-R/240SX/300ZX tuners out there it shouldn't be hard.

Again, unless you're making more than 350whp or so, you do not need bigger injectors. Do NOT try to run bigger injectors without an appropriately tuned ECU or some sort of proper fuel management setup in place!

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jltibbs
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click here, choose your CC, and order away. although, if you go with a walbro 255 fuel pump and a snail, you need not upgrade injectors unless you go over like 7 lbs.

brianw
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Nice find. I wasn't aware anyone sold prepackaged upgrades for the VQ30. We normally just stuff SR20DET injectors in there.

(although considering they just plug in, maybe I should stop being naive...)
Modified by brianw at 3:36 PM 6/21/2007


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