Jump to content
SAU Community

2.5t head onto rb30 NA block WHAT TO DO?

25t

By 25t,
in Engines & Forced Induction

 Share

Recommended Posts

Steve Grand Master

Steve

Posted
Posted

Sorry 25t, this is where I got the info from:

'The RB25 twin cam head's variable inlet cam timing can be retained on the RB30 block by teeing off the oil pressure galley on the head and feeding the standard RB25 piston mechanism. This pushes the camshaft through a full 10 degree advance. All oil and coolant galleries mate up perfectly, with the exception of this cam advance unit.'

the above was from http://www.autospeed.com/cms/article.html?&A=0004 .

After reading this, I did some more investigation and was told it was as simple as drilling a hole in the RB30 block to align with the oil galley for the NVCS by more than one source.

Any chance of some photos?

Skyrine-Dave Mentor

Skyrine-Dave

Posted
Posted

i am becoming very interested in doing this motor build up as a side project after reading both of these threads which are proving to be very informative.

just a suggestion... is there going to be a price guide to go buy to give some of us an idea of the costs associated with the build up.? <-- for the word document that joel seems to be making

Cubes Grand Master

Cubes

Posted
Posted

I think they want around a grand for the head..

Thats what I was quoted anyhow.

The Bottom end can be had for almost nothing and well the bearings etc can be had from Nissan so i guess a call to nissan may help us out there.

25t Contributor

25t

Posted
  • Author
Posted

Hi Joel

no ill install the oil pump and squirters of the 25t block,get the crank balanced, looking at the stroke and pistons the comp ration will be higher because of the storke?,ill have to look into this a bit deeper

Steve, no dramas man ,your info is still very usefull

nothing is ever as simple as it COULD be.Ill post some Pics later today. I really want to retain the vvt.

thanks Guys

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

    • Duncan
      After market rear camber arm adjustment

      By Duncan · Posted

      Then, shorten them by 1cm, drop the car back down and have a visual look (or even better, use a spirit level across the wheel to see if you have less camber than before. You still want something like 1.5 for road use. Alternatively, if you have adjustable rear ride height (I assume you do if you have extreme camber wear), raise the suspension back to standard height until you can get it all aligned properly. Finally, keep in mind that wear on the inside of the tyre can be for incorrect toe, not just camber
    • V35Newbie
      After market rear camber arm adjustment

      By V35Newbie · Posted

      I know I have to get a wheel alignment but until then I just need to bring the rear tyres in a bit they're wearing to the belt on the inside and brand new on the outside edge. I did shorten the arms a bit but got it wrong now after a few klms the Slip and VDC lights come on. I'd just like to get it to a point where I can drive for another week or two before getting an alignment. I've had to pay a lot of other stuff recently so doing it myself is my only option 
    • Duncan
      After market rear camber arm adjustment

      By Duncan · Posted

      You just need a wheel alignment after, so just set them to the same as current and drive to the shop. As there are 2 upper links it may also be worth adding adjustable upper front links at the same time; these reduce bump steer when you move the camber (note that setting those correctly takes a lot longer as you have to recheck the camber at each length of the toe arm, through a range of movement, so you could just ignore that unless the handling becomes unpredictable)
    • V35Newbie
      After market rear camber arm adjustment

      By V35Newbie · Posted

      I got adjustable after market rear camber arm to replace the stock one's because got sick of having to buy new rear tyres every few months. Can anyone please let me know what the best adjustment length would be. I don't have the old ones anymore to get measurements. I'm guessing the stock measurement minus a few mm would do it. Please any help on replacing them would be fantastic I've watched the YouTube clips but no-one talks about how long to set the camber arm to.
    • GTSBoy
      Unpeeling the Orange

      By GTSBoy · Posted

      Heh. I copied the link to the video direct, instead of the thread I mentioned. But the video is the main value content anyway. Otherwise, yes, in Europe, surely you'd be expected to buy local. Being whichever flavour of Michelin, Continental or Pirelli suits your usage model.
×
×
  • Create New...