Originally Posted by shadowpr
so you're going to try and do the dogbox first? will you be doing sycros next?
That's the plan, after looking at the OEM weak points.
If we do a dogbox we have more ability to make the gear bigger.
I can get a more detailed explanation if needed, but in lamens terms a syncro takes "thickness" away from gear.
Here is a side by side comparison of a syncro gear set next to an Albins dogbox
The other advantages of a dogbox, is the ability to quickly shift, and not having issues with lockout.
At high RPM's syncro'd gearboxes don't like to go into gear.
The OEM 5MT is made to go 100k+, therefore the materials used, ratios used are made for a daily commuter.
Ratio's also play a role in strength.
They felt that the issue with the 5MT case being weak was due to the actual gear design and not the case itself.
By swapping 1-2 gear and going to a spur gear (straight cut) causes the loading to become more axial. Also their shafts will have less run out.
I'm going off my notes here so if I got a term mixed up I apologize, I was trying to write and pay attention at the same time.
If anyone has a specific question they would like to know I can find out specifics and post up.
I should have numbers (cost) here shortly, I'm waiting on them to quote out the job with and without diffs.
If there are enough people who want a sycro'd set, we can go down that road, but they recommended the dogbox.
Thanks for the interest and I'm really looking forward to being able to get a company like EMCO involved with our cars!
We will be getting a gear set that has the same quality of material and workmanship that Indy cars, NASCAR, and Grand-Am series race cars have.
and of course they're made in the U.S.A.
No waiting around for something to ship from Australia or Malaysia, and support that is local (stateside).
-Phil @ F4M