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Can I Run R33 Gtr Injectors On My R33 Gtst?

medman2damax
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medman2damax Collaborator

medman2damax

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Hi All,

Am getting the necessary parts together for a turbo upgrade, met a guy who upgraded his R33 GTR injectors and wants to sell his stock items (Car has only done 40,000 K's). I did some research and bumped into the terms "top feed" and "side feed".

Can I swap my standard 370cc injectors for the GTR 440's? Is it a straight swap? Do I need to replace my fuel rail?

Any advice woudl be appreciated.

Cheers.

The Mafia Grand Master

The Mafia

Posted
Posted

you'd also need a balast resistor pack (dropping resistor pack), as simply plugging them in will blow up your ECU due to being low impedance, and an aftermarket ECU if you don't have one to make the necessary changes to allow the car to run with bigger injectors.

Get 6 x s15 injectors, or go and buy injectors that are meant to go in your car. (Side feed, high impedance)

The Dan Grand Master

The Dan

Posted
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Another option are some Rx7 injectors - Denso 555's i beleive. Straigh bolt on, good over well over 300rwkw.

Im in the process of buying some second hand ones.

They are an old design Denso 550cc. Just be careful with this option. I know there are a few people running them but it's fairly well known in the rotary world that the factory injectors are a little unstable at anything higher than 80% duty.

medman2damax Collaborator

medman2damax

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Unstable like they start to lose their shit and yell at people? Yeah I do that too but only above 90%.

Plus I am side feed as food goes in my mouth and not into the top of my head.

JonnoHR31 Grand Master

JonnoHR31

Posted
Posted
sure do, they flow about 290rwkw safely in a RB25 with a decent enough turbo.

They are about 415cc.

yer 440cc, just dont ask nissan for a price on them if you want to live a long life....

wrx injectors also fit and are 440cc

medman2damax Collaborator

medman2damax

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Dude when you have to be at work at 7am on a Sunday to get the job done, UNPAID, with Clipsal only 1 km away, you'de go a little stir crazy yourself.

I feel like some side feed pizza for lunch.

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