Ph. (02) 8677 4890
6/47-49 Kemblawarra Road
Warrawong NSW 2502

webquery@otomoto.com.au
Shopping Cart
Your basket is empty

About this site
Last Visited Products
Otomoto on facebook
Click to follow us on facebook!
Otomoto on Twitter
Google Ads
Nissan Skyline, GT-R and Z32 5-speed close ratio gearset by OS Giken
OS giken close ratio gearset for 5W30A gearbox in BNR32 and BCNR33 GT-R, ECR33 and ER34 Skyline turbo and Z32 300ZX twin turbo, 5-gear kit including input shaft
$4,995.00
Qty
Add Review
Ask a Question
S giken close ratio gearset for 5W30A gearbox in BNR32 and BCNR33 GT-R, ECR33 and ER34 Skyline turbo and Z32 300ZX twin turbo, 5-gear kit including input shaft.
OS Giken close-ratio gearsets offer greatly increased gear strength, along with closer gear ratios to suit racing applications. The retention of normal synchromesh parts and a helical gear design means the gears are still almost as quiet as a standard gearset, so this is an excellent upgrade for street-driven vehicles too. As you can see by the numbers below, you get a taller first gear, so second and third are much closer together. Fifth is also lower to improve acceleration in this gear.

OS Giken ratios: 2.695, 1.703, 1.236, 1.000, 0.826
Standard ratios: 3.214, 1.925, 1.302, 1.000, 0.752

This gearset is designed for the final 1997 version of the BCNR33 GT-R gearbox, or ER34 gearbox, some additional Nissan parts will be required to update earlier versions of the FS5W30A.
The gears are rated at 1200ps, so they are suitable for most modified RB engines. The limiting factor is the Nissan synchros. While the latest version of the synchros is used, they may still fail if shifting too fast at over 9000rpm. For this reason extreme drag car applications should look at the OS-88 sequential gearbox. That said, this gearset has been used successfully in a number of 9-second GT-Rs.
 
Currently there are no reviews for this product.
Currently there are no questions for this product.
Recent Blog Posts

Otomoto Supercar Project Part 7

by otomoto on 24 Feb 2016
Otomoto Supercar Project Part 7 Now that Otomoto is operational at the new Warrawong warehouse we are getting s...

Otomoto Supercar Project part 6

by otomoto on 13 Mar 2015
Otomoto Supercar Project - part 6     As expected, a few months have passed since our last update. We are in th...

Otomoto Supercar Project part 5

by otomoto on 21 Oct 2014
The plastering process takes longer than you might expect, requiring many re-applications to get ...

Otomoto Supercar Project part 4

by otomoto on 15 Oct 2014
With most of the basic foam blocks done, we are on to the finer details of the design. The corne...

Otomoto Supercar Project part 3

by otomoto on 14 Oct 2014
Supercar Project Part 3 About this time the guards on the left side got cut to start the replica...
Currency Converter
Currency
Members
Please click here to sign in or register.
Best Sellers
Shopping Cart Status
Your basket is empty
Google Ads
Google links
OTOMOTO Pty Ltd
20/17A Amax Av
Girraween NSW 2145
AUSTRALIA

Ph. (02) 8677 4890