Quote:
Originally Posted by maxcbrdriver
Just to caution ppl, Ron doesn't recommend stiffening the rear shifter bushing as it firms up the shifter's connection to the body vs the transmission. He told me to either retain the stock bushing or to open up the Turner bushing a bit. When I install the AS SSK I'll be reverting back to stock.
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I recently sought some clarification from Ronald re this as I'd recently installed the Turner rear bushing and felt it gave a slight improvement to shifting (tighter but no more effort required) but it did introduce significant NVH especially gear whine during hard acceleration/deceleration. I've had the AS SSK around 3.5yrs, clutch stop since new (2 shims), Raceseng Circuit Sphere shift knob (had intermittent buzzing with oem knob after SSK install), CDV delete & Rogue trans mounts. Since installing the Turner bushing I've done a couple of 2-3 day trips to our alpine/high country and pushing hard on tight twisty roads the shifting has been faultless & imo better with it in. Initially I wasn't sure about the noise but the car isn't a daily commuter and now I actually like the whine, adds to the experience! (though with a window down the wind noise drowns out the gear whine).
Here is Ronald's reply: "I cannot comment on the current Turner poly bushing. the one that was given to me was a couple years old and I felt it held the back of the shifter arm too tightly therefore robbing control from the front setup. I recommended then to slightly enlarge the hole so that the bushing would act as a limiter rather than a controller. And theorized that it would work very well in that case except for the noise.
I drove such a bushing on an e46M3 in its tight form ( it was a generic blue poly bushing) and I felt it hurt the pattern rather than help it. it felt firmer but not as precise especially when pushed hard. So it sort of validated my theory. So for both noise and control reasons I felt it was not a positive .
However a tight rear bushing would likely work well if the rest of the mounts (motor mounts and gearbox mounts) were solid or close to solid. In such a case the whole drivetrain moves as one with the body and the rear bushing no longer controls the rear of the shift arm independently from its front
I hope this clarifies my position".