well, during the shock change i noticed that the rear upright top bushing was moving inside the upright and had worn itself to where i could push it outby hand, called Mazdaspeed to order new ones and was told that they have competition bushings available (40% harder duometer) so i ordered a car set...
When doing the bushings i also installed new 11.75 front brakes and the two pice track rotors as well as the 3.63:1 rear end

 

What was the ratio of your old diff? I may be interested in it.

 

i have a 3.9-1 ring and pinion that i took out when installing the 3.3-1 gear set

 

Ahh I see. I was thinking you swapped complete diffs.

 

pretty hard to find a diff with the 3.3 gears in it since they are a europe or australian optionand are pretty heavy to ship...

 

Sooooooo, think this will he ready by Memorial Day?

 

You better belive that it will be ready!! I have an aligment scheduled for next week and the only thing left to do is to change the engine oil and rent a trailer
The rear end is going back together, now but when taking it apart i noticed that the upper a arm inboard bushings had moved and the arm was hitting the front of the saddles, so i think that the worn upright bushing was worn because it would move fwd under acceleration and backwards during braking.
to prevent this from happening in the future i trimmed the bushing "end washers" and made delrin washers to fill the gaps between the a arm and upright - attachments, will see how it works on Memorial day!

 

Out of curiosity, what do the 3.9s usually go for? I might want one in the nearish future.

That said, I have a 4.3 torsen now and I have a feeling that the open diff sitting in my garage is better off being sold as 4.3 gears...

 

You probably get the most out of your open diff if you weld it, install the 4.3-1 gears and sell it to a drifter, price wise i just got a complete 4.3-1 torsen with energy suspension bushings for $500 but i think than that was on the low side price wise, the 3,9 i have cost me $650.
i now have complete rear ends with 3.6, 3.9 and 4.3 gears, the 4.3 is there in case i ever go na or do a k swap.

 

Thanks for the info, sir!

 

Here is another session with a wet track but not raining at the time

 

Track day last sunday, the car is running well, love the new shocks !
Leak down was good just have to check hubs and brakes before Gingerman next Monday 😎

 

Great time at Gingerman raceway, big thanks to Glade for the invite and letting me drive his sweet handling NA 👍 SOOO much fun!

 

Nice build! look forward to seeing feedback on the Xidas as those are my next purchase

 

Do you still use that same exhaust from 2014? Sounds really good to me.

 

Fixed all your youtube links. Mobile is broken right now. so URLs don't get automatically linked.

 

Thanks for fixing the youtube link.
Regarding the Xidias i am very happy with them, still playing to get the car balanced, i have some brake lockup on trail braking (you can see it on the first lap corner 2) that i tried to solve by going to a softer rear sway but the problem is still there and the car was pushing really bad until i took the wicker off and stiffened the rear shock valves, i will install a proportioning valve to take care of the braking issue and go back to my bigger rear bar.
i still have the same exhaust from 2014 on the car, it is pretty quiet (that was ome of the goals when building it) a little heavy but it flows well and is not hitting anything, i use a remote microphone cliped on to the back of the trunk lid on the gopro, that is why you can hear the exhaust so clearly on the videos

 

Car looks great and Gingerman looks like a ton of fun. Sounds like you need the Wilwood proportional valve. Does your car have ABS?

 

Gingerman is really fun We need to plan on making it to a track day as a group with all the Indy guys ( Glade can come as an honorary Indy Guy LOL)
No ABS on my car, i will get the wilwood proportioning valve and install it but was hoping to wait until the motor swap... i really want to install it with a cable or in the dash so i can change it while driving

 

I would absolutely be down for a Gingerman day with the Indy group.
I like the idea of in-car adjustment for the prop valve. You could probably get it very dialed in within one session that way.