CTR Clutch Delay Valve Removal

CTR1633FK2

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I don't understand how removing the delay valve would have any impact at all on grinds while shifting. If I understand correctly, the purpose of the valve is to delay clutch engagement after the pedal is released. All of this should be occuring after the gear change has already happened. What I would expect from removing the valve, would be a more crisp clutch engagement and elimination of the slight slipping clutch feel when applying heavy throttle immediately after shifting.
You are right about the original purpose of the valve. It should not do anything during clutch disengagement. But if you look at the valve itself, there is a tiny metal ball with a spring that is suppose to move when you press the clutch pedal. It still restricts the flow when pressing the pedal. After removing mine, I feel the clutch disengagement is much faster and smoother/lighter without that valve.
And the difference in clutch engagement timing is even bigger of course.



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Lust

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I see it all the time. People complain about clutch CDV when it doesn’t contribute at all to gear grinds. To those that say that can’t shift smooth without the CDV removed need to get better at driving a manual transmission. Sorry not sorry.
 

Centripetal

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I see it all the time. People complain about clutch CDV when it doesn’t contribute at all to gear grinds. To those that say that can’t shift smooth without the CDV removed need to get better at driving a manual transmission. Sorry not sorry.
With more than 20 years driving standards—some with cable driven clutches and originally without delay valve, I had the same opinion as you. Consequently, on really cold days I would need to double clutch to shift without the synchros biting me. I adjusted the pedal, which made it marginally better. I also tried holding the clutch in for a long time to make sure it wasn't me being stupid. Then I added a SS line and removed the delay valve and I haven't needed to double clutch since. The pedal feel was also more consistent. However, when I was positive pressure (not vacuum) bleeding the clutch, I noticed a lot of little air bubbles, which I just assumed it was from cracking the line open. Unfortunately, I have the thought "what if it was air in the line from the factory and not the delay valve?" in the back of my head.
 

CTR1633FK2

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I see it all the time. People complain about clutch CDV when it doesn’t contribute at all to gear grinds. To those that say that can’t shift smooth without the CDV removed need to get better at driving a manual transmission. Sorry not sorry.
I had the exact feeling, until I removed it.
 

the8rotor

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I didn't dislike the car with CDV, but after removing it, damn it feels great. I chose to do this during a transmission drain and fill, and would highly recommend it for everyone.
 

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