BMW V8 dry sump from billet

Gallery, Projects and General > Project Logs

<< < (58/73) > >>

AdeV:
Only a small amount of visible progress today - well, yesterday actually. I've skimmed 3mm off the bottom & tidied it up somewhat. I had a go at some "bling" at the back edge, using a ball end mill to radius up to the bolt-on part. Unfortunately, I managed to slightly muff it, and left a dent in the middle. Ho hum.

Anyway, tonight was almost entirely taken up with careful depth measurements, complex (ish...) trig calculations and other such nonsense. The end result is: I will mill at 18.4o, 75mm in from one edge; and 11.3o, 100mm in from the other. That will slope the bottom down & should remove a tidy amount of metal. It will also leave a theoretical 11mm thickness from any internal void, so no chance of a breakthrough, and plenty of material to cut the fins into. I plan to make the fins a mere 6mm deep, leaving 7mm of metal at the thinnest point, which I feel is massive overkill. Mind you, I'll be double-triple-quadruple checking those calculations before I do any more cutting, a breakthrough now would be a total disaster.

As it stands, the sump currently weighs 14kg without the bolt-on piece. Or, to put that in English terms, "far too f***ing heavy!" :lol:

Anyway, here's the setup:

The lines are scored in the right place, I've double-checked my angle, and it's good to go... hopefully, plenty of cutting time tomorrow :dremel:

Stilldrillin:
Looking good Ade! :clap: :clap:

Hope all goes well during tomorrow's shift....... :thumbup:

David D

DMIOM:

--- Quote from: AdeV on November 23, 2011, 03:59:14 PM ---..........As it stands, the sump currently weighs 14kg without the bolt-on piece. Or, to put that in English terms, "far too f***ing heavy!" :lol:

--- End quote ---

But Ade ..... if my memory stretches back to the start of the thread - wasn't there a suggestion that the mk I sump would go on your Dad's car and you would do your's later from the other half of that huge offcut disc? - so leave this one "with a sound margin of safety" and then make your's somewhat more race-light?

Dave

Divided he ad:

--- Quote ---That cracked me up! :lol:
--- End quote ---
At least someone noticed :thumbup: :beer:

Maths!!? :smart: surely this is the perfect time for just take a little off and see where you get to :D

Seriously though, I'm thinking 7mm is a good solid thickness to aim for. Too easy to dent or rip if it's thin.

Looking forward to the next few installs :coffee:

Ralph.

krv3000:
HI sum well thort out work being dun brill

Navigation

 Message Index

Go to full version