RX7Aggie

i'm sure it's lighter and cheaper than our momo type thing, or whatever brand it is

RX7Aggie

we looked into have a british company cast us our front rotors out of that duralcan stuff, but decided to go with a ferodo disc off the shelf so we didn't have to manufacture the disc.



oh, and our differential broke today in testing. we drill and tap into the zexel housing to mount the end caps which mount to the sprocket, and it broke / fatigued. it's done it in the past, i dont know why our drivetrain guys used the same design. $400 down teh drain. we have an extra in teh shop, we'll just throw that on in the mean time until they figure out what to do.

Cheers!

you mean the housing of the diff broke?



We got a full ingot of the stuff, we get alcan to extrude it into a solid bar of 10 inches? i think ic an't remember, and it gets cut by another sponsor by high pressure water.



It's pretty crazy stuff.

Cheers!

hahah, that thing is made out of 12 layers of carbon fibre.

RX7Aggie

that's our initial guess, since diff fluid was leaking out, and metal shavings were in the fluid. the diff housing has broken in the past, so that's why we think it's teh same thing again.



adam is taking it apart tonight, so we'll see what happens. they think the tranny might have locked up, causing the diff to break. unlikely story, but we'll see what comes of the disassembly. either way, downtime for me, time to live it up, senior year style.

Srce

When is saw that Tec3, I was like

Cheers!

if was still on the team next year, i would push for no diff, just sproket, with two CV joints for independant rear suspension and save like 20 lbs for the whole contraption.



I like the Go-kart philosphy, not formula1 Shumacher and ferrari ideas.

RX7Aggie

i just found out the bolts sheared off, the diff didn't break.



lucky i guess. but how did three 7/16 bolts shear off? tranny problems?

Cheers!

go use some shoulder bolts instead.



usually people break drive shafts not diffs.

G2G

We had serious tranny problems last year, and it's looking to be the same this year as well. I'm still pushing hardcore for a rotary, there's one we can use from a snowmobile, but it's a single rotor. If we could get a custom e-shaft made and make a center housing and time it out and what not I think it would be pretty sweet. Granted we would have not a lot of torque off the line, but it would do well around the course with a high rev limit. We blew our clutch out at the last auto-x last season but replaced it in 45 minutes to be able to run the next heat. It's a fun sport, and I love working on the kart. I'd take some pictures of ours but the director always gets pissy about us taking pictures for anything other than our own purposes.



- Steiner