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For Sale/Looking For => Parts for Sale/Wanted => Topic started by: Dr. Diesel on March 21, 2009, 01:23:09 am

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on March 21, 2009, 01:23:09 am

sold

Title: FS: Lightened and balanced AAZ connecting rods
Post by: subsonic on March 21, 2009, 11:00:51 am

Bryson,
Were these balanced with the old bushings/ bearings still in or out?  Did you do the balance?  If so, could you discribe the jig you used?

BTW-Free bumpski and thanks for the info on the mani's.  I am working with him on getting some.  

Jim

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on March 21, 2009, 03:50:15 pm

The small end bushings were found still in dimensional specs and left alone.
Balancing isn't typically done with babbit bearings installed, and they weren't in this case. To achieve balance perfection, you can weigh the bearings you buy for these, mix and match, and remove material to make equal weight sets before installing.

I did the balancing, using an apparatus similar to this:

(http://www.performanceengines.com/performance_images/RodBalance.jpg)

Title: FS: Lightened and balanced AAZ connecting rods
Post by: jasonsansfleece on March 21, 2009, 08:03:54 pm

Thats interesting. Are you measuring the turning moment around the wrist pin, not the mass. Would a more accurate measurement be equal mass and same center of gravity?
Guy

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on March 21, 2009, 10:16:24 pm

it is mass and center of gravity. the rod's ends are supported by roller bearings.
this is how they do it, from local shop to NHRA.

Title: FS: Lightened and balanced AAZ connecting rods
Post by: jtanguay on March 21, 2009, 10:43:37 pm

very interesting...  how much would you charge to balance some rods, or is it too time consuming and not worth it?

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on March 22, 2009, 03:44:22 pm

Just balancing, $15 each.

Title: FS: Lightened and balanced AAZ connecting rods
Post by: jtanguay on March 22, 2009, 04:53:06 pm

Quote from: "Dr. Diesel"

Just balancing, $15 each.

hmmm i might consider that when installing the girdle  8) thanks

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on April 02, 2009, 06:34:23 am

up

Title: FS: Lightened and balanced AAZ connecting rods
Post by: saurkraut on April 09, 2009, 12:32:44 pm

How about $100 US no core?  Or would you like the 1.6TD rods back?

Title: FS: Lightened and balanced AAZ connecting rods
Post by: Dr. Diesel on April 09, 2009, 02:37:41 pm

hmmmm