Manual Supra Shift Knob Options out there?

[st4ck0v3rfl0w]

Snapped a nice shot today with my 50mm lens

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[Hasan]

Yes they have a large hole in them with threads, lol. But seriously my Raceng knob is a lot heavier than the OEM one and I think it improves the shift action. This is a purely subjective view remember and I'm not going to tell you it's a "game changer" but I prefer it slightly to the OEM weight. My total shifter length is also around 1/4 in shorter as well so that has to be accounted for. Interestingly the theory for a shorter shift lever has some legs I think and for the same reason as motorcycle shift levers. The shorter the shifter shaft the less leaverage you have over the shifting mechanism and the detent spring in particular so to make the lever move you need to apply greater hand pressure to the lever to get the shift detent spring to release. This then translates into greater kinetic energy when the detent spring does release and changes the shift action. All dependant on the original setup of course. I did a modification to the shift lever design on a particular motorcycle brand a few years ago and it ended up in a small production run it worked so well for that bike. The principle is the same for a car shifter but as I mentioned it's influence is dependent on the original design.
Phil

Many thanks for the insights Phil.

I have a billetworkz shift knob which weighs around 300 grams and sits around the same height as the OEM. I do feel a difference in the shift action, but I am not sure I like it all the time. Whenever I am feeling tiered and worn, I really like it; when I am feeling adventurous; not so much. For me the shift action has become a bit muted and softer.

Your description of the effect of a shorter shift lever makes sense. I would imagine that a weighted shift knob with a shorter shift lever would feel quite nice.

I am going to try a tomei duracon 60mm shift knob which along with the adapter should weigh around 100 grams.

I think I will play around with the 3 for a while and then consider reducing the length of the shift lever. Based on your experience, are you happy with the 1/4 inch reduction or would you choose a different length if you were to do it again?

Thanks

 

[lucky phil]

Many thanks for the insights Phil.

I have a billetworkz shift knob which weighs around 300 grams and sits around the same height as the OEM. I do feel a difference in the shift action, but I am not sure I like it all the time. Whenever I am feeling tiered and worn, I really like it; when I am feeling adventurous; not so much. For me the shift action has become a bit muted and softer.

Your description of the effect of a shorter shift lever makes sense. I would imagine that a weighted shift knob with a shorter shift lever would feel quite nice.

I am going to try a tomei duracon 60mm shift knob which along with the adapter should weigh around 100 grams.

I think I will play around with the 3 for a while and then consider reducing the length of the shift lever. Based on your experience, are you happy with the 1/4 inch reduction or would you choose a different length if you were to do it again?

Thanks

The 1/4 inch reduction was all I could achieve using the Race engineering shift knob and the adaptor style they chose and I copied without removing material from the shifter shaft which I didn't want to do. I was concerned it might increase the lever force too much mainly into reverse but it's fine. Even a total of 1/2 inch shorter would work well I think but no more than that.
Phil

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