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.

Installed: Blitz Nur Spec R Exhaust

I've been looking around for a replacement exhaust in the lead up to my engine rebuild. My old exhaust system is a workshop amalgamation of a Kakimoto muffler and a custom straight pipe with numerous weld points. So it had to be factory crafted, loud and net a power gain. 

I was looking at titanium systems but not really sold on the sound - I prefer the more bassy note of stainless steel systems. Its also difficult to get a titanium exhaust repaired if anything were to break or crack, as we do not have a titanium welding facility here in Malaysia (or one thats accessible to the general public). Despite what some people say, you can't do a weld on titanium pieces unless its in a controlled environment, devoid of oxgyen i.e. a vacuum-controlled chamber!

So my search continued but time and time again, I came to the same conclusion. The Blitz Nur Spec R exhaust system came up tops among most Skyline owners in their forum discussions. The system also comes with a detachable silencer thats nests inside the muffler. So if there ever came a time to tone down the decibels (i.e. MOT tests), one can turn to this device (refer to the pic below - its the object next to the gasket and screws). The Nur Spec R is also one of the few exhaust systems thats completely made from 100% stainless steel - tip to tip.

So I ordered a brand new set from neweraparts a month ago and the exhaust arrived in Malaysia two weeks ago (80mm at the midpipe, 115mm at the exhaust tip). I also specified for a Zacetec Decat Pipe, which is required to replace the catalytic converter section of the system. This too came in the air freight box from Japan. Big up to Miguel from neweraparts for making all the items fit in a EMS shipment box - otherwise, I'd have to go with another Japanese air freight company and pay more. 

And so without further ado, here are pictures of the unwrapping and installation:

The package was long and huge!

Got a bit excited seeing the Blitz emblem

Factory packaging and bracing to ensure the exhaust is not damaged during transit

The Zacetec Decat Pipe

Getting ready to install the mid pipe

Wonder what lies beneath all that cardboard and plastic?

Isn't she a beauty?

I have to say that I chose well. The exhaust sounds amazing and loud enough to satisfy my inner boy racer fantasies. By removing the silencer, the exhaust is pushing out sounds above 100 decibels. And thanks to the small center cannister, there's absolutely no in-cabin droning, even at high speeds. Very satisfied with Blitz Nur Spec R and I hope to record the sound it makes, sometime this weekend - hopefully on a drive up to Ulu Yam with the boys.