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What injector sleeves & o rings do I use for the PNT PERFORMANCE JUN STYLE PLENUM and standard injectors for Rb25det neo

adam wicks

By adam wicks,
in Engines & Forced Induction

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Sub Boy32 Rising Star

Sub Boy32

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Have you measured the injector boss hole size? I'm not familiar with the Jun plenum but if it's made for the RB25 Neo it should be a standard 14/15mm seal. If it is made for a series one or series two RB25 they came out with a much larger sized seal for the side feed injectors. There are fuel rail kits from various brands (Race Works for eg) that come with adaptor collars to convert the manifold from side feed to top feed setup, just make sure you get one with the correct top seal size (can be 11m or 14mm normally)

 

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adam wicks Collaborator

adam wicks

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Have you measured the injector boss hole size? I'm not familiar with the Jun plenum but if it's made for the RB25 Neo it should be a standard 14/15mm seal. If it is made for a series one or series two RB25 they came out with a much larger sized seal for the side feed injectors. There are fuel rail kits from various brands (Race Works for eg) that come with adaptor collars to convert the manifold from side feed to top feed setup, just make sure you get one with the correct top seal size (can be 11m or 14mm normally)
 


Okay thanks
adam wicks Collaborator

adam wicks

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Okay so I just finished installing the plenum in my 34 it's running mint not missing a beat but it has the check engine, traction control off and slip error codes on the dash but it runs and drives fine do they just need to be cleared with the next tune ? Is it a tuner thing it is my car having issues ??

GTSBoy Grand Master

GTSBoy

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Ah.  It's an R34.  OK, so you have a traction control CU somewhere in the car that is not happy that you have removed the TCS throttle and TCS throttle position sensor.  I was thinking that the codes were coming from the ECU, but if you have a PFC then that will give no f**k.  But the TCS CU will.  You can't have TCS if you remove the throttle for it, so you might as well find the TCS CU and pull it out.

I suggested Nistune because when you transplant a Neo into an older car with the TCS CU and so on in the car, the ECU chucks a wobbly and puts the code up.  Nistune allows you to mask those codes.  But in your case, it's the other way around.

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adam wicks Collaborator

adam wicks

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Ah.  It's an R34.  OK, so you have a traction control CU somewhere in the car that is not happy that you have removed the TCS throttle and TCS throttle position sensor.  I was thinking that the codes were coming from the ECU, but if you have a PFC then that will give no f**k.  But the TCS CU will.  You can't have TCS if you remove the throttle for it, so you might as well find the TCS CU and pull it out.

I suggested Nistune because when you transplant a Neo into an older car with the TCS CU and so on in the car, the ECU chucks a wobbly and puts the code up.  Nistune allows you to mask those codes.  But in your case, it's the other way around.

 

 

Okay thanks for the help you wouldn't know where the tcs cu is in an r34 gtt? I'll have a google also

 

adam wicks Collaborator

adam wicks

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Nope.  Google will be your friend.  I've never cared where it is in cars other than mine and thankfully, mine never had one!


Okay no worries I've tried googling it but couldn't find anything
Leroy Peterson Grand Master

Leroy Peterson

Posted
Posted
 Can't with a changed throttle body. 

 

Remove globes

Or.

Install original throttle body

Or.

Stare at always-on globe

 

Those are the options.

 

 

 

 

 

 

 

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