seselectronics
CivicX Basic Sponsor
- First Name
- Alex
- Joined
- Apr 30, 2018
- Threads
- 64
- Messages
- 1,639
- Reaction score
- 1,152
- Location
- Florida
- Website
- www.seselectronicssolutions.com
- Vehicle(s)
- Civic type R
- Thread starter
- #1
This modification is for those people who are suffering of the grinding 2nd gear, or crunching gears.
Hello Folks! I'm currently making this modification for improve the famous 2nd gear grinding issue also improve those crunchy shifting.
The modification is for both, Clutch master cylinder and Salve master cylinder, why both?
Clutch Master cylinder:
As you know the clutch master cylinder (CMC) has a damper inside, this damper prevent the fluid oscillation from the slave master cylinder, when you depress the clutch pedal the engine vibrations are transmitted back through the brake fluid from slave clutch cylinder to the clutch master cylinder making the pedal vibrating , for avoid this vibrations the brake fluid goes to a damper inside of the clutch master cylinder (goes inside a chamber and then the fluid go through the master cylinder chamber slowing down the brake fluid). The modification consists in bypassing this chamber for make the master cylinder operate directly.
Pros: Direct shifting, when you depress the clutch pedal the clutch disengage immediately and feels more connected to the clutch, also soft pedal feeling.
Cons: Vibration on the clutch pedal at high rpm. (are mild vibration but for some this can be annoying)
Slave clutch cylinder:
The slave clutch cylinder has a delay valve, this delay valve is used for preventing the shock on the transmission when you release the clutch pedal making a soft operation between shifting (increase the slippage of the clutch). The question is why do I need to get rid of this delay valve? The answer is simple, this delay valve is located right at the input of the brake fluid coming from the clutch master cylinder partially blocking the fluid trough the slave clutch cylinder creating delay when you depress the clutch pedal. This occur partially, the valve is designed for one way, (when the brake fluid is going out releasing the clutch pedal) but unfortunately for the location of this valve, this decreases the fluid going through the slave clutch cylinder.
Pros: Doing this mod when you disengage the clutch will disengage immediately, it means if you dump the clutch pedal you will feel how the car practically jumps if you don't control the clutch pedal. (between shifting it will feel more powerful) If you don't have control of the clutch pedal, I won’t recommend this mod. (in mine opinion feels right to me, more connected compared stock)
Cons: As I said before if you can't control the clutch pedal or you like to dump the clutch you can damage the power train or other related components.
The modification I do with OEM Clutch master cylinder and OEM slave clutch cylinder.
Interested PM:
Hello Folks! I'm currently making this modification for improve the famous 2nd gear grinding issue also improve those crunchy shifting.
The modification is for both, Clutch master cylinder and Salve master cylinder, why both?
Clutch Master cylinder:
As you know the clutch master cylinder (CMC) has a damper inside, this damper prevent the fluid oscillation from the slave master cylinder, when you depress the clutch pedal the engine vibrations are transmitted back through the brake fluid from slave clutch cylinder to the clutch master cylinder making the pedal vibrating , for avoid this vibrations the brake fluid goes to a damper inside of the clutch master cylinder (goes inside a chamber and then the fluid go through the master cylinder chamber slowing down the brake fluid). The modification consists in bypassing this chamber for make the master cylinder operate directly.
Pros: Direct shifting, when you depress the clutch pedal the clutch disengage immediately and feels more connected to the clutch, also soft pedal feeling.
Cons: Vibration on the clutch pedal at high rpm. (are mild vibration but for some this can be annoying)
Slave clutch cylinder:
The slave clutch cylinder has a delay valve, this delay valve is used for preventing the shock on the transmission when you release the clutch pedal making a soft operation between shifting (increase the slippage of the clutch). The question is why do I need to get rid of this delay valve? The answer is simple, this delay valve is located right at the input of the brake fluid coming from the clutch master cylinder partially blocking the fluid trough the slave clutch cylinder creating delay when you depress the clutch pedal. This occur partially, the valve is designed for one way, (when the brake fluid is going out releasing the clutch pedal) but unfortunately for the location of this valve, this decreases the fluid going through the slave clutch cylinder.
Pros: Doing this mod when you disengage the clutch will disengage immediately, it means if you dump the clutch pedal you will feel how the car practically jumps if you don't control the clutch pedal. (between shifting it will feel more powerful) If you don't have control of the clutch pedal, I won’t recommend this mod. (in mine opinion feels right to me, more connected compared stock)
Cons: As I said before if you can't control the clutch pedal or you like to dump the clutch you can damage the power train or other related components.
The modification I do with OEM Clutch master cylinder and OEM slave clutch cylinder.
Interested PM:
Sponsored