Alternately titled..."Pain, Suffering and just for good measure...Anguish"
This was
not easy.
A little while ago I got this little item. The last of the first(only?) run of Guru torque biasing differentials.
Quick story. A while back a group of annoyed Australians decided that all torque and no go was slow. There had to be a better way. After an aborted attempt to get Kaaz to build a clutch pack diff for the "4 cyl MX6" (they did apparently...the 2nd gen 4cyl MX6) they turned to in country manufacturers.
Gurumotorsports is a speciality shop that deals primarily with RX7s and Miatas. All sorts of trick items from straight cut dog boxes to custom eccentric shafts. They also have the ability to fabricate their own torque biasing differentials(AKA Torsen style diff).
Now I had been keeping an eye on the movements of the Australians because I felt that something was going to come of this and I wanted a piece of the action. Sure enough it did. Half of the money up front to cover the cost of tooling/manufacturing the initial run of units and a guarantee of one of the final products. Unfortunately when that time came I became unemployed. CRAP!
I had to hope that there would be some items left to be purchaced or perhaps a second run one day. For over a year and a half I kept in touch with Guru expressing my interest and keeping tabs on how things were going. Persistence and a bit of luck helps. I had just gotten employed this past December when I got word that "a few" items were left. I was told By Guru that after those items were sold no more would be made (citing lack of consumer interest). The heads up was much appreciated and I tried to save as much as I can as quickly as I could.....Now, unbeknowst to me There was actually only ONE item left. Moreover, someone else had made inquiries about buying one. CRAP!
Now Heres the cool/strange part....It turns out that through some spying and well placed questions my significant other got the full grasp of the scenario I was in. Furthermore she had been secretly corresponding to Gurumotorsports for weeks at the point where there was only one item left. Her plan was to get that item for me as a gift without me knowing, but upon getting the news that someone else had made motions on the last item, she broker her silence and sprung into action purchacing the diff I have here now.
Women are amazing...and treacharous. Never turn your back on them (or else they may buy you performance parts for your car? )
Naturally I was flabbergasted that i had been duped, but very pleased with the outcome. This is an integral part to the buildup of my car and honestly, If I didnt get it. This whole escapade would be pointless. No amount of shock and suspension tuning will be enough. If I cant get power to the ground I go nowhere.
A torque biasing diff does just that. Through a set of set of precicely machined gears the diff will sense the slippage of one wheel and automatically adjust the remainder of torque to the wheel that has the most traction.
This is exactly what I need for an autocrossing application where the car is in transitional moves many times. It will give me grip in corners where before when the car shifted torque to the wheel with less grip.
So I have the Guru TBD......what do I do with it now?
