New super bulletproof transaxle
Drifting
Joined: Jun 2003
Posts: 3,345
Likes: 1
From: Spartanburg, SC
That's just incredible, Mike. I can't fathom being that good at precision machining. Once you finish the mechanicals, let's outfit your car with a slick livery to promote your company, or whatever you want to promote, and get this baby in a magazine.
Chronic Tool Dropper
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Joined: Oct 2001
Posts: 20,506
Likes: 564
From: Bend, Oregon
Parents, take note: This is what happens when you give your kid a Dremel for Christmas...
Mike, this is pure engineering art. Please take and share plenty of pctures along the way. Call it **** for us old folks.
Mike, this is pure engineering art. Please take and share plenty of pctures along the way. Call it **** for us old folks.
Archive Gatekeeper
Rennlist Member
Rennlist Member
Joined: Sep 2002
Posts: 18,764
Likes: 3,933
From: Irvine, CA
Sounds like a good idea ... you must be running out of things to photograph ..
/Back to the the tranny ****...
Advanced
Joined: Jul 2004
Posts: 82
Likes: 0
Very impressive work!
640 WHP without boost.
I did a lot of CNC programming with Mastercam and setup on machines. I like the big Horizontals as the chips fall down. Your machine work looks great. What $$$ for that? 6061 T6 plate?
4spd is fine. I have a '62 Jaguar XKE (2400 lb) with a Chevy 327 and a 3 spd, 2 and 3 is all that is necessary. Just bought hubs for the back to replace the wire wheels with disk as got tired of popping and replacing the wires.
______________________________________
'79 928 5spd
640 WHP without boost.
I did a lot of CNC programming with Mastercam and setup on machines. I like the big Horizontals as the chips fall down. Your machine work looks great. What $$$ for that? 6061 T6 plate?
4spd is fine. I have a '62 Jaguar XKE (2400 lb) with a Chevy 327 and a 3 spd, 2 and 3 is all that is necessary. Just bought hubs for the back to replace the wire wheels with disk as got tired of popping and replacing the wires.
______________________________________
'79 928 5spd
Thread Starter
Three Wheelin'
Joined: Aug 2006
Posts: 1,765
Likes: 3
From: Atlanta
It's 4 and 5 inch plate, several hundred dollars, I'm not sure.
I do like to use 6061 and avoid 7075 for exposed parts, 7075 is very corossion prone.
There's also a heat treated chrome moly insert that holds the pinion bearings. I feel it's important to have stable, precise mountings for those bearings, they'll see big power and spin over 7000 rpms!
I mentioned having fallen in love when the BMW 850s came out becasue it had a 6 speed. I did own one and drove it as a 3 speed normally and I understand others do the same, 1-3-6. The other gears were pointless.
I do like to use 6061 and avoid 7075 for exposed parts, 7075 is very corossion prone.
There's also a heat treated chrome moly insert that holds the pinion bearings. I feel it's important to have stable, precise mountings for those bearings, they'll see big power and spin over 7000 rpms!
I mentioned having fallen in love when the BMW 850s came out becasue it had a 6 speed. I did own one and drove it as a 3 speed normally and I understand others do the same, 1-3-6. The other gears were pointless.
Drifting
Joined: Apr 2002
Posts: 2,070
Likes: 34
From: Hendersonville Tennessee
Rennlist Member
Joined: Jan 2003
Posts: 3,426
Likes: 223
From: Honolulu and sometimes L.A.
Not only is this very very cool, but it might be salvation of 928 racing. I was starting to think that these cars would just be transmission limited and there would never be any possible solution.