Reinforced genuine parts(Welded)
Silver coated
Features
With the use of a reinforced clutch cover, the burden on the bracket, which functions as a fulcrum for the clutch pedal, increases, and there is some danger of the bracket bending or the spot welding coming loose during heavy clutch use, such as in competitive driving. The Reinforced Clutch Pedal Bracket adds additional welding to the standard clutch pedal bracket. Not only is the bracket reinforced but this gives the pedal a more rigid feel, which most people favor.
For following model:
S15(SR20DET、SR20DE)
S14(SR20DET)
(R)S13(SR20DET)
1-6 speed full cross specifications
S13, S14 speedmeter gear available as accessory
* When attached to S15 SpecS (SR20DE), S14 or (R)S13, flywheel and clutch should be exchanged for S15 (SR20DET) models.
Features:
** Ideal Gear Ratio **
For more enjoyable sport and drift driving, first and second gear ratios have been brought closer to third gear, with the sixth gear ratio closer to fifth gear. With most of the competition oriented gears in the market, strength and ease of production are emphasized in the design process, and a lower gear engagement ratio and rougher tooth surface grinding may cause noisy whizzing sound for daily use. NISMO carefully considered these factors, and developed gear ratio specifications that allow for daily use as well.
** Improved Gear Strength **
By changing the gear ratio and increasing gear diameter, strength has been improved. Where the gear ratio has not been changed, changing the module by reducing the number of both counter and main gear teeth and increasing the size of individual gear teeth also increases gear strength. By reducing the torsion angle, the thrust power shock to the front of the counter-shaft caused by the input of shock torque is reduced, helping to reduce potential damage to the end face of the counter-reverse gear.
** Superior Operational Feeling **
Because the S15 speedometer obtains its signal from the ABS sensor, there is no speed drive gear on the transmission. Because of this, no speedometer indications will be available on the S13 and S14. When installing the NISMO Reinforced Cross Transmission in the S13 or S14, a speedometer drive gear has been prepared which must be attached.
Car by car work up
http://www.nismo.co.jp/en/products/competition/mission/pdf/silvia_spec.pdf
* Durability Serviceability performance
Durability of Engine torque design value: 40kgfm (392N•m)
Durability of Engine power: 350ps (257kW)
Recommended Clutch: NISMO SINGLE PLATE CLUTCH
*Please note: gears may be damaged by input beyond the design values.
The FS5W71C (five-speed), which has a long history of actual use in the Silvia and the FS6R92A (six-speed) used in the S15SpecR are compared in the above graph against the NISMO Reinforced Cross 6-Speed Transmission.
- The designed allowable engine torque for the FS5W71C and FS6R92A is approx. 30kgm.
- The designed allowable engine torque for the NISMO Reinforced Transmission is approx. 40kgm.
Warning:
- Always use as a set with a NISMO clutch.
- When shifting down, a major load is created on the transmission by the input of torque from the road surface. To ensure long use, be sure to shift down with the proper engine rotation level.
- An application for permission to make vehicle modifications may be required in some locations for vehicles to be used on public roads.
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