Slant Six Forum
https://slantsix.org/forum/

Can you lighten a 225 crank?
https://slantsix.org/forum/viewtopic.php?t=3982		 Page 1 of 1
Author:  68Charger [ Sun Jul 28, 2002 11:41 pm ]
Post subject:  Can you lighten a 225 crank?
I am looking for a few more ways to free up some HP and high rpm reliability. Is there any power to be gained by widdling down the crank a few pounds before the final balance? What about the rods? Thanks!

TJSzubart@Excite.com
Author:  bud L. [ Mon Jul 29, 2002 8:23 am ]
Post subject:  Re: Can you lighten a 225 crank?
Quote:
: I am looking for a few more ways to free up
: some HP and high rpm reliability. Is there
: any power to be gained by widdling down the
: crank a few pounds before the final balance?
: What about the rods? Thanks!


I, too, have kind of wondered if there would be any thing to be gained by knife-edging the crank. If so, how would that affect the balance. The crank is extremely beefy. What material (and from where) could be removed without adversely affecting the strength?
I don't know about the rods, though. I've heard good things about the rods, but they don't look like there's much excess material on them.

fglmopar@aol.com
Author:  dusteridiot [ Mon Jul 29, 2002 1:50 pm ]
Post subject:  Re: Can you lighten a 225 crank?
i hope doc reposts that pic of his lightened crank, i think he said about 10-12lbs. can be removed from it...

Doc?

-D.Idiot
Author:  elam [ Mon Jul 29, 2002 7:30 pm ]
Post subject:  Re: Can you lighten a 225 crank?
Quote:
: i hope doc reposts that pic of his lightened
: crank, i think he said about 10-12lbs. can
: be removed from it...
:
: Doc?
:
: -D.Idiot


I think Cox brothers offer one done up.


melam@nxs.net
Author:  Doctor Dodge (Doug Dutra) [ Fri Aug 02, 2002 7:47 am ]
Post subject:  Re: Lighten 225 crank *PIC*
Quote:
: I hope doc reposts that pic of his lightened
: crank, i think he said about 10-12lbs. can
: be removed from it...
: -D.Idiot


Here is that PIC, this is a Cox crank, tons of work into that unit and it was not done right.
There is a PIC of one I did in the HRM SlantSickness article posted here.

Most should just use "common sense" to grind-off all the ragged / ugly edges off a crank and then remove the big "balance lumps" the factory used as "drilling points" for the balance, there are 6 of these that can be removed for a few more lbs of reduction.
DD

Image
Page 1 of 1 All times are UTC-08:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/