violent jerk and clunk noise when shift at redline

[Iceman_101]

Hi guys, I have searched a few posts but couldn't get the answer I want.

when I shift from 1st to 2nd or 2nd to 3rd in my DC2R, sometimes there would be this single violent jerk with a clunk noise at the moment when I release the clutch. I have spoon engine mounts and they are fairly new, is the jerk normal provided they are aftermarket mounts?

cheers

[khanguskhan]

Not very mechanically sound so I hope that someone else is able to help you, but that just sounds like you're not shifting cleanly, road speed and revs don't match up well cause you shift too slowly? Goodluck though

[JDM DC2R]

Syncs.... Mine doesn't engage 3rd smooth any more. No matter how slowly i release the clutch it always gaps roughly at high rpm.

[Iceman_101]

Im not the most experienced manual driver but i have been driving this car for 2 years Id say my average shift time is 1s-1.5s.
anyway thanks guys, just wanna make sure the problem isnt mechanically.

[Super-DA9]

look at the tacho when you shift, if you see the revs jump up or down suddenly at the same time that the car jerks, then you are not rev matching correctly.

or if you would like it explained in a simple mechanical way:

if you quickly release the clutch when the flywheels turning speed is not the same (or close to) the speed that the clutch itself is turning at, then you will get a "kick" from the engine/transmission as the clutch bites onto the flywheel.

[Lepperfish]

You say the spoon engine mounts are new? I experienced the same problem you are describing and found out it was my engine/gearbox mount. It was completely ****ed. Replaced all the engine mounts with a hard race kit and now its awesome again ;-)