Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat

Post Reply
 
LinkBack Thread Tools Display Modes
Old 04-04-2015, 10:53 AM   #21
Registered User
 
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,850
lightweight and balanced rotating assembly

Quote:
Originally Posted by Jake Raby View Post
Hey, that work bench looks familiar.. I hear the guy that owns the place is a real ****************************!

And that built crank, it might cost 6,500.00 and have that ****************************'s name on it, but it is 4 pounds lighter than stock and won't snap in half.
Hello Jake,

Regarding to the 4lbs lighter than stock (billet) crankshaft, plus the balancing of the entire rotating assembly.

Would be possible to achieve similar results by knife edging a stock crank (removing weight) and thereafter balancing the entire assembly as well?

What would be the down side of knife edging a stock crank?

Is the main reason for having the lowest possible mass rotating assembly is to be able to sustain higher rpm with the less vibration? Making a stronger engine in the end?

Your comments are always appreciated, thank you.

.

Gilles is offline   Reply With Quote
Old 04-04-2015, 01:22 PM   #22
Registered User
 
Join Date: May 2014
Location: S.California
Posts: 2,027
Bfan,
I like the way you are thinking about this. Trying to understand and learn but also putting your ideas to the test and living with a possibly bad result - but learning in the process.
You might enjoy this from the Machinist I use locally:
https://www.youtube.com/watch?v=5-k1GqIFP1g
and this for con rod balancing/lightening
https://www.youtube.com/watch?v=QLpiF0E0EJU

Gelbster is offline   Reply With Quote
Post Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 08:45 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page