HULK YOUR GEARBOX
The 1.000 HP Nissan Skyline Dogbox Transmission Kit is officially available!
After several years of testing a prototype, Speedtek can now say with certainty that they are extremely happy with the design and also how easy it is to service the gearbox if necessary. Each gear is individually pressed onto the countershaft and mainshaft, meaning everything can be replaced separately if needed in the future.
Why exactly the Dog Engagement gear set?
In addition to lightning-fast shifts and the ability to shift above 9.000 rpm at any time, the answer is very simple: every part, including the input shaft and the teeth on the countershaft, is 100% removable. This means you can service this gearbox quickly, part by part.
The Dog Box Kit is 100% plug and play and requires no other parts. The gears are supplied, shafts as well as dog rings and hubs to adapt them. We also have 6 dogs per gear, resulting in even faster shifting than most current 5 dog sets available in Skyline dogbox kits today.
We typically recommend that ANYONE who wants to use the high performance/hard start gear kit choose the 26 spline input shaft, especially if the car is heavy and has a larger engine (stroked or 3L+). The factory 24-spline input shaft is not recommended for applications over 600 horsepower unless used in rolling racing or "street" operation, in which case the larger input shaft may be omitted in some conditions.
The 26-spline input shaft is best suited for those seeking maximum strength and wanting to push the limits of our transmission well beyond 1.000 horsepower.
Translation:
1st gear - 2.230 (MS29/CS13)
2st gear - 1.625 (MS26/CS16)
3st gear - 1.263 (MS24/CS19)
4th gear - 1:1 (MS24/CS24 teeth)
MS = teeth on the main shaft CS = teeth on the secondary shaft
**Using this gear set will result in your factory 0,76 ratio in 5th gear becoming a 1 ratio due to the fact that a true 1:4 drive gear (0,55th gear) is used. We recommend using 5th gear on this kit only on the highway. Speedtek is currently working on a new optional Dog Engagement 5th gear with a 0,85 ratio (1-5 short + reverse) for track use and a 0,70 1-5 long + reverse for highway use to fit this kit. With Dog Engagement reverse gear - this will be available by the end of the year.