Jump to content
SAU Community

Hybrid 25/30 Neo R34

GTRsean

By GTRsean,
in Engines & Forced Induction

 Share

Recommended Posts

GTRsean Grand Master

GTRsean

Posted
Posted

just curious because my mate has just got hold of a 30 block and wants to put it in his r34... but has heard that the neo head is not a good option because of the shim and bucket set up inside the head(aluminum intake buckets).

Link to comment
https://www.sau.com.au/forums/topic/167582-hybrid-2530-neo-r34/
Share on other sites
Adriano Grand Master

Adriano

Posted
Posted

Doing one at the moment, i feel they are definately superior to the r33 head fr that reason. Ive fitted gtr cams. You just have to cc the head, as the bowls are much smaller than the r33 head, so you end up using rb30et turbo pistons and end up with mid 8's comp.

  • 4 weeks later...
GTRsean Grand Master

GTRsean

Posted
  • Author
Posted

He's sourced a good bottom end, and thats at the machine shop.

At the moment he's aiming for around 600hp at the crank.

Still deciding on turbo.

RB30E block

Stock crank prepped, balanced etc.

stock rods(na RB30)

ACL bearings

RB26 ARIAS pistons 86.5mm

total seal rings

Head R34 neo RB25

plazma man intake manifold

tomei 260 poncams

70 hp nos system

  • 3 months later...
ovabooster Collaborator

ovabooster

Posted
Posted

im also thinking about using my neo head....because they have smaller combustion chamber means that the comp ratio will be higher then that off a r33? I need alittle help in finding the right pistions to give the best comp ration...Will be using t04z and pushing 2.2 bar max...I would still use my hks gasket 1.2mm...

cheers

Adriano Grand Master

Adriano

Posted
Posted

Whats the question? rb30 pistons wont cut it, the comp ends up too high. If you plan on using a 1.2m headgasket to drop it, it wont be anywhere enough, and is the wrong way of going about it. RB30ET forged pistons work out about right in the comp, at between 8.3 and 8.6 depending on what headgasket you use, how much the head/block get skimmed during the build, and the specific brand of piston.

GTRsean Grand Master

GTRsean

Posted
  • Author
Posted
email me for any info you require.

The RB26 pistons will give very high comp ratio due to the R34's small combustion chamber.

They are not an option really.

Yep, he ain't using those pistons anymore, as they are wrong for the job......

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

    • Rezz
      DeAgostini 1/8 scale BNR32 Nissan Skyline GT-R Nismo

      By Rezz · Posted

      Starting with issues 1 - 5, we have already run into a problem...!  Issue #4 contained 2x front brake calipers, instead of 1 caliper and 1x steering knuckle. Will have to call DeAgostini on Monday to sort it out. Anyway here's some photos.  Issue #1 is the front bumper, headlights and number plate. Issue #2 is the front wheel (with "We produced with spartan air." text on the centre cap!) and tyre, the front lip spoiler and cylinder head cover with ignition coils under the centre cover... which will never be seen again. Issue #3 is the bonnet and cylinder head. Issue #4 is the front strut, brake disc (with laser etched metal discs) and brake caliper. I stopped here because of the issue with the missing steering knuckle.  Next update will be #5 - #10 in a few weeks.
    • Rezz
      DeAgostini 1/8 scale BNR32 Nissan Skyline GT-R Nismo

      By Rezz · Posted

      DeAgostini is one of a few companies that release quite large (the largest commonly available size actually) 1/8 scale models in a series of weekly issues over 100 - 110 instalments.  They release different models for different markets and DeAgostini Japan have release the BNR32 Skyline GT-R Nismo last month. I've made two of these 1/8 scale sized cars (one an R35 GT-R from 2012 - 2014, the other I'm just about halfway through, a BNR34 Skyline GT-R from the 2Fast 2Furious movie) so when this R32 was announced there was no way I could ignore it as it's my favourite out of all Nissans.  Each issue costs around $20 so it costs about $2.2K when completed. I suppose it is very expensive for what it is, but the quality and details are really very good, and there are many "gimmicks" like fully functioning exterior and interior lights operated with a remote control, working steering, all doors/bonnet/boot/fuel lid open and close, the side mirrors fold in and it even has a speaker for the engine revving sounds when you turn the lights on.  Each issue comes with a magazine that tells the story of the BNR32 Skyline GT-R Nismo from the first design stages of the BNR32 to Group A homologation and the various racing version that were run in the Japanese Group A and JGTC, and Australian Group A.  So I plan to update the build in this thread 5 issues at a time.  https://deagostini.jp/r32/?srsltid=AfmBOooKjxDc4EUK2rmXqMBPgyHfFJ24s4oEPJBNpnF-lFlsRoW0PE6P
    • Predator1
      Billet Merge Collector for manifold

      By Predator1 · Posted

      As per title.. has anyone used so far? Keen to hear results, comparisons. In the market for a new mani for my new turbo. Any issues cracking?
    • MBS206
      Help Understand GTT Boost Setup

      By MBS206 · Posted

      Re read everything that has been written about this in this thread.. Let us know if you're still confused.
    • joshuaho96
      Help Understand GTT Boost Setup

      By joshuaho96 · Posted

      This would be a new pump with new gears. I'm just unclear on whether it's a good idea to run more oil pump flow if you don't actually need said flow. Oil level is set a minute or so after shutting off a warm engine so wouldn't the high RPM oil level in the sump end up lower all things equal? Plan is OEM clearances, main concern in my mind is whether the OEM pump can keep up with the flow requirements of any additional oil coolers.
×
×
  • Create New...