45 replies to this topic

[Jim Drago]

Plenty of gearboxes out there with the synchro ring relieved around the spring tang area.  The springs still fatigue and fail at the 90 degree bend because they cycle "circumferentially".

I know a guy that was doing that it was better than stock but not nearly as good as your springs

[Carl]

Wondering about the heavy wear that has been reported on the shifter forks.  I just pulled apart an RX7 tranny and the 3-4 fork is worn badly on one side.  The pads are gone and about a couple 32nds inch deep groove is worn all the way around.  I understand this is not uncommon, but am wondering if you are seeing this happening on race transmissions that have been rebuilt or if it is the results of lots of hands resting on the shifter while driving the >100k miles on the street before a tranny finds its way into the race car.  I can't imagine anyone racing with one hand on the wheel and one on the shifter (it least not for longer than needed to shift).  

 

Next question is:  who can provide heat treated forks (and can it be done to RX7 shifter forks?)?  Also anyone willing to explain how it is actually done?

 

Thanks,

 

Carl

[Carl]

Just found the series of "miataboxes" videos and got my answer.  Yes, it happens in rebuilt race boxes too.  Are "miataboxes", Mark and Saul all the same person?

[Ron Alan]

Mark and Saul are related...

[LarryKing]

Saul Speedwell was a young Amish boy in Ohio. It all went horribly wrong when, during Rumspringa, he discovered the devil alcohol. He sold the family dairy farm and squander his family's wealth on sissy race cars. Mark is just an alias that Saul uses. When drunk he sometimes claims his name is Zsolt Bumgardner, the great Amish poet.

[Carl]

Seems like quite a guy!