10-19-2013, 10:00 PM #1
Supertech valve spring and retainer installation success interesting facts too.......
I weighed the stock springs and retainers vs the supertechs and here is what I found:
stock spring weight= 48.1 grams
stock retainer= 10.4 grams
supertech spring weight = 47.0 grams
supertech retainer weight= 5.8 grams
weight savings of 5.7 grams per valve.
wanted to send a big thanks to "dinomite" for lending me the valve spring tool! Worked like a charm.
Last edited by dpracing; 10-19-2013 at 10:29 PM.
10-20-2013, 02:58 AM #2
almost 2 times less weight in retainer make the difference!!! in very high rpm!
10-20-2013, 08:33 AM #3
When comparing weight of one setup compared to the next, you need to compare the weight of the moving parts compared to the spring rate.
You need to compare the weight of the
(valve + retainer + clips + 1/2 the weight of the spring + about 1/2 the weight of the rocker)
of the new setup compared to the weight of the old setup. That is the total weight that the spring has to move back into position very quickly. Google suspension and "unsprung weight ratio" to get an idea how this sort of thing really works.
Also Google Ducati valve system for some really cool stuff.
10-20-2013, 03:27 PM #4
10-20-2013, 03:30 PM #5
I gonna say what valve spring but the vid explains it.......
10-21-2013, 12:52 AM #6
- Join Date
- Oct 2007
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By rangermtb5 in forum Sea Doo ClassifiedsReplies: 5Last Post: 12-20-2012, 10:23 AM
By TDR in forum Sea Doo ClassifiedsReplies: 0Last Post: 09-21-2012, 12:55 AM
By skigolfnut in forum 4-Tec PerformanceReplies: 11Last Post: 03-11-2012, 01:44 PM
By turbojunkie in forum 4-Tec PerformanceReplies: 29Last Post: 02-18-2012, 06:08 PM
By josh_m in forum 4-Tec PerformanceReplies: 5Last Post: 08-08-2010, 12:53 PM