Jump to content
SAU Community

Racepace Built R34 Gtr Nur Rb28 V-cam

tangomatt
 Share

Recommended Posts

  • Replies 604
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

tangomatt
tangomatt

Let's start from the very beginning...... 2002 BNR34 VSpec II NUR purchased from Zele International in Japan through Powerplay Imports. It was delivered over two years ago. The car was in 5A condit

tangomatt
tangomatt

Picture of Racepace stage one exhaust as requested. This may look like any garden variety aftermarket exhaust, but there are lots of hidden sneaky tricks to make the turbos spool hard and fast.

tangomatt
tangomatt

Pro Photos have been processed. However, due to 'copyright' agreement, I cannot post any large format photos. All pictures are watermarked with 'Joel Strickland'. I apologise, but you all know abou

Posted Images

Driven Substance Newbie

Driven Substance

Posted
Posted

Matt,

I am in awe of this build of yours. Coming from a Nissan S15 and continuing my journey with a Storm Trooper Evo X MR literally tossing up as you have pointed out to a R35 you make me regret my decision of buying a White R34 and doing what you have done, which was a 3rd option.

I really hope we can meet one day as like yourself, I am obsessed with white car, black carbon bits and black wheels.

Tell me if I am wrong but it appears your guards aren't rolled yet it appears that you want to do track days? Have you considered a respray in a better white maybe with a distinct pearl?

  • 3 weeks later...
blitzkreig Apprentice

blitzkreig

Posted
Posted
DYNO RESULT:

This is the email Beno sent me when the car was ready for pickup. I will let someone who knows about GTRs summarise what the RB28 V Cam feels like on the road:

The all important dyno graphs:

RB26 NUR vs RB28

dscf0092r.jpg

RB28 Power vs Boost:

dscf0094h.jpg

RB28 Power vs Lambda:

dscf0095x.jpg

Will post pictures of car this afternoon. Need to clean car first!

was this tune on race gas? as someone pointed out, your lambada = 12:1 a/f. little too lean for me with that much boost, if it was on pump gas.

SS8_Gohan Grand Master

SS8_Gohan

Posted
Posted

pump

blitz, i think the tuner may have half a clue on how to tune a GTR when a) has built/tuned a 33 R that was only about 1.5 seconds off a v8 supercar around sandown in full street-trim, b)done something on this build that many thought was not possible without a HKS ecu c) have countless other GTR's getting around oz seeing plenty of track time, from weekend warriors to Targa events.

i think it's safe to say the tune is more than fine

blitzkreig Apprentice

blitzkreig

Posted
Posted

pump

blitz, i think the tuner may have half a clue on how to tune a GTR when a) has built/tuned a 33 R that was only about 1.5 seconds off a v8 supercar around sandown in full street-trim, b)done something on this build that many thought was not possible without a HKS ecu c) have countless other GTR's getting around oz seeing plenty of track time, from weekend warriors to Targa events.

i think it's safe to say the tune is more than fine

[/quote

gotcha ya. btw. what is the octane of pump gas?

GUN_METAL_GTR32 Grand Master

GUN_METAL_GTR32

Posted
Posted
Matt,

I am in awe of this build of yours. Coming from a Nissan S15 and continuing my journey with a Storm Trooper Evo X MR literally tossing up as you have pointed out to a R35 you make me regret my decision of buying a White R34 and doing what you have done, which was a 3rd option.

I really hope we can meet one day as like yourself, I am obsessed with white car, black carbon bits and black wheels.

Tell me if I am wrong but it appears your guards aren't rolled yet it appears that you want to do track days? Have you considered a respray in a better white maybe with a distinct pearl?

thats the only way to build them, trust me dude if u saw his car in the flesh u would love the paint work its clean as f**k....

dahandfull Proficient

dahandfull

Posted
Posted

Hey,

Have been trying to find the info in this build but i think there is way too many pages..lol

Would like to know rpm and psi this beast runs to make its power, for interest sake to compare to my setup. Also what head work has been done if thats ok :)

Congrats on this build ;) . Awesome awesome machine...

SS8_Gohan Grand Master

SS8_Gohan

Posted
Posted
subscribed - what a beautiful gtr u have there.

with 412kw, is this running e85 or pump? also, what level of headwork do you have i.e. porting, cam specs?

hahah, Marko mate, 3 of the 4 posts above you talk about the fuel!

JAGR33 Grand Master

JAGR33

Posted
Posted

From my chats with Matt the car has had some headwork, and as far as cams it does have V-CAM so not sure if only one or both cams have been replaced.

Still remember the day I took it for a drive after completed. Truely amazing.....

tangomatt Proficient

tangomatt

Posted
  • Author
Posted

Thanks for everyone's interest in this thread still.

I believe the my car will be featured in the January 2011 Performance Import issue, at least that's what Jun Sawa (photographer). He also said that the photos thurned out amazing! He is not allowed to show anyone the photos until the magazine article release due to copyright.

As for the queries:

412RwKw output on pump gas, that is 98RON, is definitely possible. Its not the top end power that is amazing, its the low end torque and response that make it fun to drive.

A/F ratio might be on the 'lean' side, however, the car is tuned for street application mainly. The very occassional and brief high boost/lean exertion with street driving should not pose as any risk to engine life. If I were to track the car, Racepace has suggested detuning the engine for bigger safety margin.

Regarding head work.... I am unsure. I know a fully reconditioned RB head was used for the build, but I don't know whether Beno did any sneaky tweaks to it though. If he did, he was not prepared to tell me. Trade secret I suppose and I respect that. The cams are very mild (IN 248; EX 256) and suited to the Garretts -5s.

The V Cam certainly makes a world of difference. Pity I don't have direct dyno comparison on the same engine/turbo setup with and without V Cam.

Sorry, I don't have a power output vs rpm dyno graph. I guess you can convert vehicle speed to engine rpm by knowing what gear the car is running when dyno was charted.

Thanks everyone again for comments!

dahandfull Proficient

dahandfull

Posted
Posted

tangomatt - wat boost you running on the 98ron and whats you rev limiter set to? im sure u have no need to rev this motor out...hence getting the v-cam and extra capacity.

street driving, this thing would be amazing :)

sometimes i wish i kept my setup on the sane side..lol

:thumbsup:

JAGR33 Grand Master

JAGR33

Posted
Posted

tangomatt - wat boost you running on the 98ron and whats you rev limiter set to? im sure u have no need to rev this motor out...hence getting the v-cam and extra capacity.

street driving, this thing would be amazing :)

sometimes i wish i kept my setup on the sane side..lol

:thumbsup:

Looking at the graph above it looks like it's around 22psi of boost.

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

    • brillo
      Leak from Tokico BM50 Brake Master Cylinder

      By brillo · Posted

      Hi, SteveL Thank you very much for your reply, you seem to be the only person on the net who has come up with a definitive answer for which I am grateful. The "Leak" was more by way of wet bubbles when the pedal was depressed hard by a buddy while trying to gey a decent pedal when bleeding the system having fitted the rebuilt BM50 back in the car, which now makes perfect sense. A bit of a shame having just rebuilt my BM50, I did not touch the proportioning valve side of things, the BM50 was leaking from the primary piston seal and fluid was running down the the Brake booster hence the need to rebuild, I had never noticed any fluid leaking from that hole previously it only started when I refitted it to the car. The brake lines in the photo are "Kunifer" which is a Copper/Nickel alloy brake pipe, but are only the ones I use to bench bleed Master cylinders, they are perfectly legal to use on vehicles here in the UK, however the lines on the car are PVF coated steel. Thanks again for clearing this up for me, a purchase of a new BMC appears to be on the cards, I have been looking at various options in case my BM50 was not repairable and have looked at the HFM BM57 which I understand is manufactured in Australia.  
    • Gantai
      R33 GTST Steering Rack (49001-19U05) Rebuild?

      By Gantai · Posted

      PXL_20250828_063541093.TS.mp4
    • Gantai
      R33 GTST Steering Rack (49001-19U05) Rebuild?

      By Gantai · Posted

      Well the install is officially done. Filled with fluid and bled it today, but didn't get a chance to take it on a test drive. I'll throw some final pics of the lines and whatnot but you can definitely install a DMAX rack in an R33 with pretty minor mods. I think the only other thing I had to do that isn't documented here is grind a bit of the larger banjo fitting to get it to clear since the banjos are grouped much tighter on the DMAX rack. Also the dust boots from a R33 do not fit either fyi, so if you end up doing this install for whatever reason you'll need to grab those too. One caveat with buying the S15 dust boots however is that the clamps are too small to fit on the R33 inner tie rod since they're much thicker so keep the old clamps around. The boots also twist a bit when adjusting toe but it's not a big deal. No issues or leaks so far, steering feels good and it looks like there's a bit more lock now than I had before. Getting an alignment on Saturday so I'll see how it feels then but seems like it'll be good to go       
    • PranK
      R35 GT-R production ends after 18 years

      By PranK · Posted

    • SteveL
      Leak from Tokico BM50 Brake Master Cylinder

      By SteveL · Posted

      I don't get in here much anymore but I can help you with this.   The hole is a vent (air relief) for the brake proportioning valve, which is built into the master cylinder.    The bad news is that if brake fluid is leaking from that hole then it's getting past the proportioning valve seals.   The really bad news is that no spare parts are available for the proportioning valve either from Nissan or after market.     It's a bit of a PITA getting the proportioning valve out of the master cylinder body anyway but, fortunately, leaks from that area are rare in my experience. BTW, if those are copper (as such) brake lines you should get rid of them.    Bundy (steel) tube is a far better choice (and legal  in Australia - if that's where you are).
×
×
  • Create New...