R33 GT-R Update: Nismo 320km/h Speedometer Installed

 

Being an old car, the factory R33 GT-R speedometer needed replacing. There were certain tell-tale signs - some of the gauges weren't really all that accurate (the water temp needle for example) and the backlight wasn't as bright as it used to be or should be.

 Nismo to the rescue

Seeing as the car is now capable of reaching higher levels of speed (thanks to the newly rebuilt forged engine), it was time to install Nismo's version of the GT-R speedometer. The reasons being that the max speed limit on the Nismo unit is not stuck at a boring Japanese 180km/h and the rev counter goes all the way up to a whopping 11,000 rpms. Now I'm not sure if I'll abuse the car and push it to those limits, but at least the speed needle won't be bouncing off the 180km/h marker anymore.

And last but not least... When the sun goes down and your sitting in the dark - you turn the ignition key and flick on the headlight switch - at that very moment, you just can't help but feel a sense of satisfaction and pride. It's almost like driving a brand new car, which is true to a certain extent.

Big shoutout to Miguel from NeweraParts.com for helping me with this upgrade.

Spare Engine Rebuild Update: Haltech Platinum Pro

Yesss!!! My Haltech Platinum Pro Plug & Play R33 Engine Management System (including a 3 bar map sensor) has arrived from Australia!!!

 
Decided to switch from my Apexi Power FC with Commander to the Haltech Platinum Pro, due to the following reasons:

• User definable X- & Y-axis for fuel, ignition and boost
• 32x32 high res mapping
• VE Tuning (Volumetric Efficiency)
• MAF (no longer have to balance air fuel mixtures correctly)
• Advanced intelligent knock control
• CAN communication (really works as promised!)
• Closed loop idle control
• Speed density (more power)
• Launch control 
• N-VCT (Nissan Variable CAM Timing Control)

Thats just a few of the Haltech's features. Full details: http://www.haltech.com/store/index.php/plugin-ecu-kits/platinum-pro-kits/platinum-pro-plug-in-nissan-r32-33-skyline-kit.html

The Power FC is no longer in production and is technically a 10 year old technology, reliant on AFM readings (which is a pain to balance for twin turbos) plus it only has 20x20 resolution, does not have a ignition cut feature (fuel cut only) = limited tuning features when it comes to modified higher horsepower engines.

Spare Engine Rebuild Update: Tomei Poncams

The rebuild is going well and I've sent in my Tomei camshafts + Pulleys and a N1 Water Pump in for the final stage of the project. Looking forward to how the cams perform as not only will they improve response and overall performance but the poncams will also have a positive affect on the R33 GTR's exhaust sound.

And why Tomei? Tomei Poncam camshafts are designed as a "drop in application", so no dialling in required as the nock-pin has been pre-set. The Poncams are also designed to work with the standard valve springs and offer the best drop in performance gain for both street and track use.
 
Tomei Pon Camshafts + Pulley Set: Nissan BNR32/BCNR33 RB26DETT Duration IN 260, EX 252, Lift 9.15 (Pon Cam + Cam Pulley IN & EX) 143036 A Type + 153027 Cam Pulley.

Excerpt from nengun.com about the Tomei Poncams:

Tomei presents the popular poncams. Generally, engine tuning is to modify the torque characteristic of engine by changing cam duration timing and height of the cam lift, so as to gaining maximum torque and horse power. However, when tuning the engine strictly, it should be carried out with the idea of securing effective area of the valve not only by duration timing and height of the cam lift, but also by through improvement of its intake efficiency. High valve lift allows huge amount of air to flow in, yet it mechanically damages the system and gains friction loss. Also, wide cam duration will deriver great power at high RPM, but it gives rough engine character at low RPM too. Tomei have worked to get an ideal well-balanced profile of camshaft and succeeded to give it 1.3 to 1.5 times more effective area than regular camshafts.

Spare Engine Rebuild Update - Tomei Forged H-Beam Conrods

Apologies for the lack of updates but its been a busy month for me and I've been waiting on a particular part to arrive. In fact, its the last piece of the engine rebuild jigsaw puzzle. I'm referring to conrods as it was the only other forged item that I wanted for this rebuild. Lo and behold the official spiel (summary courtesy of Nengun):

Usually, to give con-rod buckling strength and light weight character at the same time, H-beam or I-beam profile is applied. Tomei have applied a H-beam profile for the connecting rod for NISSAN RB, SR, CA, VG engines and succeeded in gaining high buckling strength while reducing the weight. Tomei produces con-rod's using a forging mold with the main bearing hole in its large end, so the 'metal flow' runs along con-rod's entire body. And with a use of special materials, they have succeeded in producing con-rods with extreme intensity and durability. 

Naturally, I got standard RB26 stroke conrods as I'm not stroking the spare engine. Thanks to my good friend Glenn Trollope of Chasers Motorworks Melbourne (good luck at the World Time Attack dude!), I was able to source the conrods in record time.

So that ends this update as the crank is being balanced but I'm hoping the engine will be ready before the end of May. Theres also the Nismo bearings that need to be installed and those had arrived sometime last month, courtesy of a fellow Skyline owner (thanks Nain!). 

Here are the bearings:

Can't wait for all the parts to come together. Watch this space.