Jump to content
SAU Community

Rb25 And Neo Throttlebodies.

Simon-S14

By Simon-S14,
in Engines & Forced Induction

 Share

Recommended Posts

Simon-S14 Grand Master

Simon-S14

Posted
Posted

Hey all, does anyone happen to know if the R33 RB25 throttle body is the same bolt pattern as the neo 25? Im looking at ditching the TCS throttle body and want something else that bolts in place.

I know RB20 isnt the same as i have a spare one lying around and compared that.

any help would be appreciated.

RB20 TB with neo gasket

image0399.jpg

RB20 and RB25 neo TB

image0400.jpg

Link to comment
https://www.sau.com.au/forums/topic/288074-rb25-and-neo-throttlebodies/
Share on other sites
  • 3 weeks later...
Flargh! Enthusiast

Flargh!

Posted
Posted
just pull the tcs butterfly out if thats your concern :cool:

I take it the tcs butterfly is controlled by the ecu, and when it detects a loss of traction it closes the butterfly a bit to reduce power?

Does any one know how fast it operates or how much it closes the throttle body off?

lachlanw Veteran

lachlanw

Posted
Posted (edited)

rs four stagea throttle body is ugly as f**k because its the same body but has a stupid cover over where the motor should be. i hate it

want a rb25det one . but then dunno if the j pipe fits so meh

Edited by lachlanw
webber Proficient

webber

Posted
Posted

when i removed the TCS throttle body i used R33 RB25, but had to change the TPS over from memory, i think i had to block off a vacuum line off on the r33 throttle body also. and use the R33 cross-over pipe over the covers.

Cheers

  • 5 years later...
GTSBoy Grand Master

GTSBoy

Posted
Posted

Thread dig... Can i remove the TCS butterfly (2 screws) with no ill effects to the ECU? I have the TCS auto turn off each time anyway, but don't want the system to throw a code. Can't imagine it would, but just wanted to check!

Absolutely. There was actually a recent thread on this very question.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      This car has run before on this z32 ecu can get the part number for you, I have tried with no AFM it didn’t change anything, I compression tested today 140-150 across all 6 cylinders, also set fuel pressure to 43psi. The only weird thing was cylinder 1 plug was black and fouled other 5 cylinders were just wet with fuel. Spun cas by hand and confirmed injectors are clicking 
    • MBS206
      new 1.5 LSD issues/concerns

      By MBS206 · Posted

      Since you came here to ask for help, have you thought about answering our questions, that might help us lead you to why it was skipping, or have you given up on getting advice?
    • GTSBoy
      new 1.5 LSD issues/concerns

      By GTSBoy · Posted

      A 1.5 way is a 2 way. It is just a 2 way with a less aggressive ramp on overrun.
    • GTSBoy
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      The ABS and/or TCS being missing/broken will not cause the engine to misbehave. It just casues CEL to come on and annoy you. The CEL is useless if it is always on, so you have to do the things you have to do to get rid of it, so it can be useful. Being a Stag ECU, then yes, it will not expect TCS to be present. But it will expect ABS to be present and working. You will need to either make the ABS CU talk to the ECU (don't ask me what that will take on an NA R34), and make sure the hardware is working....or, you just need to blank it out in Nistune. Do not persist with the stock ECU. You will just have problems. Gte it Nistuned. Start from there. DO YOU HAVE A BOOST SENSOR? The ECU's boost sensor that it. It is connected to the loom at the rear of the coil cover. Usually rides on the firewall on an R34, but is usually bolted down to a bracket along with all the other crap at the back of the coil cover when a Neo is dropped into another car. If you do not have it, the ECU will shit the bed. So, do you have one?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      So sadly the fuel pump etc was not it. The pump and filter is new and it is still cutting around 4000 rpm. A read something about ABS/TCS (engine is from stagea and ECU too so no TCS) and i dont know for 100% that my car has ABS. It has ABS "cube" in engine bay but i dont think it works(or at least from my braking experience). Can be something like that?  I will be driving the car next week to Nistune tuner to properly see what is wrong...  
×
×
  • Create New...