Jump to content
SAU Community

Help Needed Please - R32 Rb25 De Conversion?

Ineedarwd

By Ineedarwd,
in Engines & Forced Induction

 Share

Recommended Posts

Ineedarwd Apprentice

Ineedarwd

Posted
Posted

Hi all, im about to undertake a conversion on my 32. I have a black gtst type m rb20det and want to put a 25de neo into it, i have done a fair bit of research and still dont know whats going on i have asked a few mechanics and still everyone gives me a different answer so please your help/advice would be much appriciated!!

I have bought a rb25de neo with 78000ks with loom and ecu, i still want to run the rb20det box if this is still possible, just wanted to know exactly what is needed to be changed/customized for the conversion.

Yes the only reason i am doing this is because im a p plater and i just kept getting introuble driving it turbo'd. i will be doing all the work with another two friends who have done engine conversions a fair bit.

once again your help/advice would be much appriciated!!

GTSBoy Grand Master

GTSBoy

Posted
Posted

R32 RB25DE ECU will not run the VCT on the Neo, so you would need a window switch of some sort to make that work.

I personally would do the complete R34 loom into R32 conversion. There's a fair bit of re-wiring required though.

The other thing that will entertain is the decision on whether to keep the crappy old RB20 power steer pump and air-con compressor, or to switch to the lovely newer R34 ones. If you keep the old crap, you don't have to do any plumbing. But if you swap, you need new lines made or cut'n'shut. There's a lot of time and $$ hiding in things like that.

You can use the RB20DET gearbag. It's the same box as the NeoDE's anyway.

WMDC35 Experienced

WMDC35

Posted
Posted

i used a cheap kitset window switch for vct, but even with it disconnected it ran fine, it's only de so whatever's quicker & easier, if you can do the wiring +! on the neo loom & ecu, also with 32 loom ignitor needs removing or get the old coils in there

  • 2 weeks later...
A Grave Digger Enthusiast

A Grave Digger

Posted
Posted

Lads, just brought a R32 4 door off a bloke today, its got a 25 neo in it, but its still 4 stud. Its got the correct mod plates for the engine and stuff.

I thought the brakes had to be upgraded if you changed a N/A to a Turbo though?

GTSBoy Grand Master

GTSBoy

Posted
Posted

If the Neo in it is a turbo, then yes, you will definitely need at least R33 brakes. Well, you would in SA. Hell, in SA, you need to upgrade to R33 brakes even from an R32 turbo, let alone NA.

I wouldn't take my word on it for QLD. But QLD is worse/nastier, so I'd assume you'd need at least R33 brakes. There is no way that it is legal with original sliding calipers and rotors unless some foolish engineer decided to sign off on it.

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

    • MBS206
      M35 Aftermarket Fuel Pump

      By MBS206 · Posted

      Pressure when IDLING, is meant to be 51PSi... So that amperage value needs to go up a fair chunk... I'd personally be factoring for more like 12amp at least on those runs, and at that point you need to hope the already there wiring doesn't drop you a volt or two, as that's a lot of fuel pressure flow drop off from 13.5 to 12V! Taking idle pressure of 51psi, means the pump will be drawing a MINIMUM of 9amps all the time based on your reading of the graph (3bar base, then allowing an extra 0.5bar for boost = roughly 51psi)
    • Ben_D
      Wanted to buy R200 longnose LSD 3.9 ratio

      By Ben_D · Posted

      Hi all,  I am in the market for an R200 longnose diff out of a Z31 300ZX, or S12 RSX, DR30 skyline, or similar, in a 3.9 ratio.  Preferably a late model one with the M12 crownwheel bolts.  The only easy to find advert for one of these was my ad back in 2007 when I sold it on this forum.  I sold the diff as I had sold the car it goes to, but as it turns out, after 18 years I got the car back late last year, so now I'm looking for the diff !  If anyone knows where to find a longnose R200 LSD with the M12 crownwheel bolts, drop me a line at [email protected] - Bonus paid if soomeone comes up with the original diff (stranger things have happened !).  Cheers   Ben D    
    • Ben_D
      Back for more after 18 years - and where are the longnose R200 LSDs?

      By Ben_D · Posted

      Hi everyone, I used to post here a bit from 2004-2013, when I owned various Nissans, in particular my S12 RSX gazelle, which was sold in 2007.  As luck would have it, after an 18 year hiatus, the car found its way back to me last year, and over the past 11 months I have had the pleasure of restoring it with my kids.  One thing that I am after in particular is a 3.9 ratio R200 LSD for it.  I actually sold the one out of the car here back in 2007 , and it would be incredible if I could track down who I sold it to, so I can see how they have progressed over the years (and to be honest, to see whether I can get the diff back !).  Anyways, hi all and let me know "where are the R200 Longnose diffs all at these days ?  Cheers Ben D  
    • sonicii
      G35 Control arm and Compression Rods into a V35 Skyline.

      By sonicii · Posted

      Arms will be the same as the G35 or 350Z, but as above, there was a change in the lower control arm where it connects to the ball joint.  That said, you can remove the ball joint cone from your old ball joints and fit them to the new ball joints.  To be honest, I didn't think the ball joints themselves were different. The main ball joint is a bit awkward to replace, you really need to remove the steering knuckle to press out the old one.  Some people have used tools to remove it in place, but it just seemed too hard to get to. If you are going to press out/in that ball joint, then you may as well just replace the bushings in the LCA and the compression rod.  You can buy the compression rod bushing from Nissan, but the LCA bushes, you will need to go aftermarket. Much cheaper than buying the whole arm.
    • Erelyes
      Ceramic turbine damage to engine - what did yours do?

      By Erelyes · Posted

      Ha, well, it's been.... a bit of a journey. Things have taken much longer than I'd hoped. I'll probably put up a thread at some stage. Hopefully soon. The car's not done any kms since my update in June though, put it that way.
×
×
  • Create New...