Decoupler Pulley Retrofit - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)
Sponsored By:
Sponsored By:

Decoupler Pulley Retrofit

Reply

 
 
 
Old 06-28-2018, 08:05 PM
  #1  
Senior Member


Posts like a Camaro
Thread Starter
 
Join Date: Feb 2015
Location: Earth
Posts: 875
Thanked 144 Times in 129 Posts
CathedralCub is a splendid one to beholdCathedralCub is a splendid one to beholdCathedralCub is a splendid one to beholdCathedralCub is a splendid one to beholdCathedralCub is a splendid one to beholdCathedralCub is a splendid one to beholdCathedralCub is a splendid one to behold
Default Decoupler Pulley Retrofit

Hello All,

I was driving my 1997 LeSabre to work today like usual. Out of habit I backed off the throttle a bit as it was about to shift from first gear to second gear. It occurred to me that a significant part of that "kick" when shifting gears is the five (or more) pounds of alternator spinning three-odd times as fast as the crankshaft with a lot of leverage working against the crankshaft slowing down. I did the math just now and it works out to over 11,000RPM at say 4,000RPM engine speed with ~2.8:1 leverage over the crankshaft pulley.

This leads me to a fun idea: Anyone have thoughts on converting to a decoupler pulley like most of the new cars have? Is the shaft size and/or pulley depth and/or pulley size compatible?
CathedralCub is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
harrydunn
2000-2005
12
05-17-2006 09:04 AM
dimprov
1992-1999
4
12-24-2005 10:57 AM
rel3rd
Performance, Brainstorming & Tuning
16
06-24-2005 11:01 PM
delta88
1987-1991
2
05-22-2005 09:08 PM
xZim
1992-1999
3
07-24-2004 12:02 AM


Thread Tools
Search this Thread
Quick Reply: Decoupler Pulley Retrofit


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.