calling ego owners help required

[robof9]

hi there, as an owner of bushys and such for years, valve spring lightening is old news to me, so when the familly came into the ego ownership i got thinking about the kick thing.

i have purchased a delrin pin from monsieur skeet(thanks bud) and stock bolt from lump(thanks bud) which i have lightened. so the next course of action i think is to relieve the valve spring making it easier to open.

this should hopefully let u decrease hpr/lpr pressure while leaving dwell low.( if all goes to plan)

i have aquires 3 different sample springs which i need testing

the only requirements are that the person plays alot, and can fit to his/her marker and record unbiased results. need to know your setup(ie bolt config)

tests

1st test shoot existing spring over chrono 10 times(record fps) need to know dwell, lpr, and hpr settings(ie 1 turn from flush ect)

2nd test replace spring, shoot 10 over chrono (record fps) same settings as 1st test

3rd test achieve fps by lpr/hpr 10 over chrono record fps and setup

4th test long busts cheching for drop off.

5th test check for any probs

so i need 3 able body testers, the spring is free to testers to keep, and i will be testing them aswell. would prefer all to have stock bolt and delrin pin really, but lets see

 

[Mario]

why on earth would you want to do this? really? the kick on them is negligble at the moment?!

to me it just seems a little pointless?

But good luck anyway.

 

[robof9]

everybody seems to be reducing the moving mass of thier bolts, to reduce kick, the point is that they either have to turn dwell up or inceasing lpr which increases impact speed of bolt>ball, the logical step imho is to reduce moving mass and reduce required force to open valve, rather than incease dwell or lpr.

this is only in development, spring manufacturer is sorted out, tests need to be done, if thier is little or no gain then fair enough.

this product is not limited to delrin pins either, stock pin owners would be able to reduce lpr which would result in less kick aswell.

thanks for your opinion mario it all helps gauge interest aswell

 

[Mario]

oh right i didn't realise you were looking at doing this as a production thing, my bad.

thats fair enough if its like an easy enough drop in thing

whether or not id buy it is another question, i just dont know if id be that bothered by it.

good luck though!!!

 

[Skeet]

What he is saying is this.

NDZ Bolt Delrin Bolt pins etc lighten the moving mass of teh ego.
This reduces kick.

It also means that in extreme cases where a bolt has been lightened as well...that LPR and or inline pressure need to be increased, for teh valve to open a similar amount.

By lightening teh valve spring, with teh right one...hence teh tests...teh ego would return to teh balaance it had before, but with less kick and greater efficiency.

 

[Lovetone]

in my opinion which obviously means **** all, i find that if youre ego kicks you havent set it up right.

that or you need to lift some wieghts.

yes egos have a "feeling of movement" when you shoot them ie a slight shift in weight somewhat hard to describe but in my opinion that in no way denotes "kick" ie rising of the barrel when firing.

 

[Lovetone]

also someone on PBn has been doing similar stuff i think it resulted in not acheivig the correct (>280fps for example) velocity

there is also stuff to do with ti rammers which doesnt seem to work too great either..

not knocknig the idea just think you might not get that much improvement.

 

[John C]

Unfortunately the main thing holding the valve closed is the firing pressure not the valve spring.

Lightening the valve spring may help to a very tiny extent, but it will also mean the valve closes slower, reducing efficiency and increasing the likelihood of air going up the feed tube.

 

[robof9]

after initial test the valve does seal the same as b4,

EDIT : but the shorter lighter springs do have issues initially when airing up with bolt forward as the spring doesnt close the valve, but only if the bolt is forward. .the existing sized medium light spring doenst share this trait, will test more

as i said b4 tests to see if it is viable/beneficial, im not gonna sell a useless product than no-one wants.

from my bushy experiences, the lightened valve spring allowed for a drop in hpr pressure and lpr pressure, which coupled with the spring and lightened bolt/hammer assembly did reduce kick quite dramatically

the ego moving mass is very much less than a bushy which is why i need to do tests. and at no cost to the tester, except a bit of fiddling, no harm no foul

all your opinions are valuable to this project, and i hope someone will bite the bullet and give it a go, i will be testing out on sat and sunday, but it isnt my opinion which counts is it, the test results will.

 

[Skeet]

As John Said...some of teh issue is teh valve pressure, but..lighhter spring etc and licghter mass, will mean a lower inline pressure can be used surely?