HONDA CIVIC gearbox Y21 Y80 S80 S4C

Close ratio kit for Honda Civic. 
- 5 speed synchromesh gearkit
- close ratio, semi helical gears
- range of final drive ratios
- Final drive ratio included
- optional Quaife ATB not included
- Sustituible for gearbox Y21, Y80, S80 and S4C
- To fit EK4 with Quaife ATB
- To kit EK9 117mm crownwheel must be modified. 
Relacion de cambio: 
1º - 2.462
2º - 1.813
3º - 1.500
4º - 1.250
5º - 1.045
Final drive ratios: 
3.786
4.154
4.500
4.750
5.000

See recommendations in Extra info.

The installation of a close ratio pinion gear kit must be carried out by a qualified mechanic with experience in this type of work due to the necessary adjustments in its assembly in order to guanantee its proper functioning and reliabitity.

Once fitted the new gearkit it is important to run it for a minium of 100/150 kms at moderate speeds and make the gear changes a smooth as possible. Once the final break-in has been completed it is necessary to remove the used gearbox oil and refill it with new oil using the corresponding viscosity.

RR2 Motorsport recommends the use of DRIVEN oils in all type of close ratio gearkits and gearboxes.