Jump to content
SAU Community

Gtr Block

Guest acxacx

By Guest acxacx,
in Engines & Forced Induction

 Share

Recommended Posts

Mik Experienced

Mik

Posted
Posted
A cryo'd std block will do fine...much cheaper too

Nismo don't seem to think so. Back in the day before 24U blocks, NISMO couldn't get 05U blocks to last at more than 450PS for endurance use.

Also, when 24U blocks were available, there was only about 10,000JPY between an 05U and a 24U.

Link to comment
https://www.sau.com.au/forums/topic/113886-gtr-block/#findComment-2100039
Share on other sites
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
Nismo don't seem to think so. Back in the day before 24U blocks, NISMO couldn't get 05U blocks to last at more than 450PS for endurance use.

Also, when 24U blocks were available, there was only about 10,000JPY between an 05U and a 24U.

Did Nismo cryo and de-burr their blocks??

Mark Jacobsen, Theo Wollett, Croydon's and Myself seem to have had great service from 05U blocks.

Extensive abuse has proven my theory in "real world"....i think you should go back to your books boy!

Edited by DiRTgarage
Link to comment
https://www.sau.com.au/forums/topic/113886-gtr-block/#findComment-2100048
Share on other sites
Mik Experienced

Mik

Posted
Posted
Did Nismo cryo and de-burr their blocks??

Mark Jacobsen, Theo Wollett, Croydon's and Myself seem to have had great service from 05U blocks.

Real world testing has proven my theory in real world....i think you should go back to your books boy!

NISMO did 'prepare' their blocks, not too sure what that meant, but I'd imagine it would be heat tempering them rather than freezing them. I'm not convinced that cryo treating a block would stop it cracking.

As for deburing...not sure whether they did or not, but my block was deburred from factory. But in any case, Rb26 blocks usually crack between 3 and 4 on the water jacket...good luck deburring it in there.

Notice I said endurance use...not a 10-15 second squirt. A top fuel engine pulls 6000bhp, but lets see what happens if you try to run it for more than 20 seconds.

And NISMO did real world testing...and I bet they have built (and broken) more RB26's over the past 17 years than any other organisation on earth.

Link to comment
https://www.sau.com.au/forums/topic/113886-gtr-block/#findComment-2100067
Share on other sites
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)

Who "endurance races" their Skyline anyway?? The track days you would be lucky to get 5 "hot" laps in...and the State champs guy's would be lucky to see a dozen. Like i said this is the real world we are discussing not something you have read.

Suppose we better wait and see what sort of monster acxacx is building before making judgement on what he really "needs"....I see Buster has a suitable block up for grabs for good $$...

Edited by DiRTgarage
Link to comment
https://www.sau.com.au/forums/topic/113886-gtr-block/#findComment-2100076
Share on other sites

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

    • GTSBoy
      R33 Fuel Pump & Brakes after alarm swap

      By GTSBoy · Posted

      Well, this is probably where a wiring diagram and a multimeter come into play.
    • Jarsky
      gauge needle removal

      By Jarsky · Posted

      I can say to anyone thats doing this; having done a number of R clusters; just be careful if its an unknown cluster.  It takes a bit of force to pull up; but if it feels excessive then its probably stuck. I've had this and pulled the entire hair spring out; and I can tell you; its not easy getting the correct spring replacement with the correct inner diameter and winding. In my case someone had used some sort of adhesive to stick it to the spindle and it pulled the whole spindle out; which the force seperated the hairspring from the spindal and caused it to deform.  You may have to clean it (IPA); or in my case if i'd known i should have used some sort of solvent on it.  Also check out Cruizin Central on eBay. He does all sorts of dials; and you can email him with any custom designs you want. So if you want like certain logos etc...he'll send you a mock of what it will look like then you accept the order and he'll take care of the rest. Fantastic dials and he can do basically any design you want. 
    • Jarsky
      R33 GTST Axles

      By Jarsky · Posted

      Have you confirmed its the actual axles? Also the wheel bearings that mount on the hubs to hold the axles wear out. I replaced mine as they got play in them. It sorted my play issue. 
    • Jarsky
      R34 Speedo not working after manual swap

      By Jarsky · Posted

      Ive converted a few clusters for the R33 with 320km/h dials. On the back there are some pads which can be bridged or unbridged (using solder or wick braid) to calibrate it. There is one bridge which is for MPH <> KPH; and there are combinations of bridges to offset it. There is probably a diagram  For example; this is my conversion for a 180km/h dial to a 320km/h dial (I put custom GT-R dials on it with the GTS25t layout) If you have J2 soldered (assuming the S clusters have a similar config to the R clusters); you may need to remove that solder
    • Rezz
      DeAgostini 1/8 scale BNR32 Nissan Skyline GT-R Nismo

      By Rezz · Posted

      Back on topic 😉, these are some of the notable pages from the booklets that are supplied with each weekly parts update. I never knew the BNR32 test mule car had an S13 Silvia front end... *Edit: On closer inspection the test car still had the R32 body, but only the front end had Silvia panels etc.
×
×
  • Create New...