- Street/Drag Syncro H-Box.
May 14th, 2010 admin
Let’s face it. Building a BNR32 this late in the game has it’s own set of complications that many builders have experienced on many other platforms – Parts availability being #1.
Unfortunately as time goes by, Manufacturers begin discontinuing certain items for older platforms in order to focus on those that are more current and lucrative. This is the circle of life (que Lion King soundtrack – NOW).
Thankfully, upgraded Transmission Parts and Clutches, including all maintenance parts for each, are regularly maintained items by OS Giken. If your only resort is one of the best to begin with, that’s not a bad thing.
For this portion of my build, I focused on planning to get together what I needed to build the best Street/Drag Syncro H-box I could, as I was not interested in running a Dog Box, with the majority of my driving still being on the street.
To help get the power out of the ass end of the motor and further down the driveline, the parts list purchased looked like this:
- OS Giken 5spd Close Ratio Gear Upgrade Kit, Nissan FS5W30A Transmission.
- OS Giken Strengthened Input Shaft.
- OS Giken Strengthened Transmission Center Plate.
- OS Giken TS3BW Tripple Plate Clutch, +4.55KG Heavier Flywheel.
OS Giken state that this combo will withstand well over 800HP safely and to further help my choice, I had done a little research on a few forums to see how others had made out using similar setups. I was satisfied with my decision.
I would have to say that, the ICING ON THE CAKE for this part of the build was secured just the other night and I have yet to even receive it, as it is still in transit somewhere in Japan. While browsing Yahoo Auctions Japan for something completely unrelated, I came across what I believe to be not only one of the rarest parts I have encountered, but also one of the best suited for my application.
This is, the STILLWAY 0-400 5SPD LOCKOUT SHIFTER for BNR32/BCNR33/ECR33. In basic terms, it locks out 5th and Reverse, allowing you to be able to smash 3rd gear up out of 2nd, up-right as far/carelessly as you want and never blow the shift (just remember, be careful with your ‘glass’ syncros), ending up in 5th, or worse, back into 1st !
From the Yahoo Auctions listing description, it also seems to ‘aide’ other gear changes (of course, 2nd to 3rd being the biggest concern) when engaged for reliable, trouble-free up-shifts down the 1/4 mile. This product seems to have been designed for basically Street/Drag builds, as the Yahoo listing also hints to it’s ability to engage or disengage it’s overall effect on regular H-pattern shiting, allowing normal operation until manually engaged by the driver prior to a run.
I will update further once the Shifter arrives and I have a chance to get a better look at it and the documentation. Till then, Cheers !
** Just in case someone is skimming through and not reading the entire description: