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March 7th, 2015, 11:14 AM   #41
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I can remember I had taffy's springs in my previous 650 and if I remember corectly (08 650) I did not have to remove any material from the head or rocker cover...
Seems like I just have to order new valve seals either way I go...
Than if I get the kw's in easy I'l try installing them if not I maybe use the offer from bushie trading them
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March 7th, 2015, 06:05 PM   #42
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The KW`s that I got for around $80 came with Titanium retainers, 30% lighter,
stronger for longer....
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March 7th, 2015, 09:11 PM   #43
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LOL yes better than watching vikings hey bergsmlerg

Spanner Tourist yes the seated force not peak force is what prevents valve bounce, it is as we know, a well known fact.

in our engines with the aggressive flank 08 profile cam 65lbs minimum is needed with any springs. all the springs currently available are over that if installed correctly .. any talk of valve bounce with a certain spring due to its peak force not only unheard of in the rfs builds it is just scare mongering.

there are 613 rfs engines that have been raced for years running up to 10500rpm with kibblewhites installed at 62lbs seated and there is no issue with valve bounce or valve float (nicer race cam)

if valve bounce is a concern due to high rpm or other anxiety the kibblewhites are still the best choice as their seated force can be increased 25lbs before the peak force approaches that of the other 2 sets. ie you can add 20lbs to the seated force if required (its not) and they are still better overall than the others

taffy you're amazing shooting your foot off nearly every post, none of your figures, accusations against me or your rants are consistent with or based on anything i have actually posted .. there are no discrepancies in my figures or results (give or take a pound or two) ... you are just unwilling or unable to read them properly

seriously mate your fascinating mental issues aside, you need to get some proper equipment and re measure all the springs yourself in a stock 04-08 head with stock valves on uncut seats like i did with all three sets as mounted in the same head at the same time on the same equipment then go back and examine everyone else's results.

at present you are still all over the place with the numbers not a single figure you're quoting is correct .. this is proof of just one example. i don't have time to explain the rest of all your errors yet again.


Originally Posted by Taffy

the seated pressure of the original valve spring is 140LB, the DVSK I supply are on 87LB when compressed to 36mm which is where you want them.

Taffy
and then you claimed for years on your site that the oem seated force was 100lbs

in fact its 72 lbs

regarding my results on your springs; from page 1

UK duals, with 0.1mm thick shims as lower springs seats (my idea, doesn't work) seated 76lbs
and your 2 recent claims in the last 2 days are 61lbs and 70lbs with a 0.2mm shim LOL you'l find your seated force is actually between 75 and 80lbs depending on the bike

get some engine building equipment then go measure all the springs for yourself and you'll get it eventually
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Last edited by bushmechanic; March 9th, 2015 at 04:25 AM.
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March 8th, 2015, 03:56 AM   #44
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This would be of interest to the vintage Harley boy's. They run tractor seats on a plunger pole. Now the plunger has a light internal spring in it, so on a good bump the seat will bottom out on the frame. Not pleasant. Most fix it by putting a valve spring on the outside of the plunger pole to stop the seat bottoming.

This is where seated force really comes into play. I think supplying them with a range of valve springs would be the best way to test seated force and valve bounce. Nothing like real world testing by the seat of your pants.
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March 8th, 2015, 04:10 AM   #45
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Ha Ha haahaha!!
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March 8th, 2015, 04:48 AM   #46
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Bushie, Ragnar and his mates arent back on the telly until the 19th of this month.
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March 8th, 2015, 07:20 AM   #47
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"lothbrok" means hairy pants - I wonder what's the seated force there!

(just to be sure, that's actually really what it means! just so you don't think I'm making things up as I go along or spouting gibberish!)
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Last edited by tourist; March 8th, 2015 at 02:10 PM.
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March 9th, 2015, 01:31 PM   #48
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Originally Posted by bushmechanic View Post
forgot to add regarding the 60lb seated with the KW 96-96000 set I get a little float at 8000 rpm with OS valves and the 08 cam

65lbs would be better for that cam/valves
this is what you put up and this is just for a 650. you have been advertising these kits everywhere and telling everyone how great they are yet you get valve bounce at 8,000 revs. a 450 can rev to 12,000 revs and what have you done about that, what responsibility did you take?

remember that my valve springs don't get any valve bounce and I checked them myself, real testing on a 400 and 450 first NOT on a 650!

and my valve springs re not KTM valve springs! and your figures prove it because if they were KTM kits then my figures would be the same!

unless your a liar again!

it doesn't matter what you can do to your springs, and how little can be done to my springs when mine don't need touching and you're the one that had valve bounce!

as for the springs being no good for anything wilder than an 08 - rubbish! talk out of your arse!

fact is several hundred sets of my springs have been sold with not one breakage, not one failure, no valve bounce and there you are getting it at 8,000 revs fer chrissakes! and that's with 3-4,000 revs left to go! no wonder I found classic valve bounce damage on a 450!

they must have been listening to your 'expert advice' again!

all people need to know is that good kit costs money and what with proper instructions, sound advice and no problems they can buy with assurance that things run right and that at the end of the day is what matters.

Taffy
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March 9th, 2015, 02:24 PM   #49
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Originally Posted by Taffy View Post
this is what you put up and this is just for a 650. you have been advertising these kits everywhere and telling everyone how great they are yet you get valve bounce at 8,000 revs. a 450 can rev to 12,000 revs and what have you done about that, what responsibility did you take?

Taffy
It can be big problem for me. ATV springs handle over 10.000RPM?

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March 9th, 2015, 03:04 PM   #50
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Originally Posted by Taffy View Post
this is what you put up and this is just for a 650. you have been advertising these kits everywhere and telling everyone how great they are yet you get valve bounce at 8,000 revs. a 450 can rev to 12,000 revs and what have you done about that, what responsibility did you take?
You're STILL trying???

It's bleeding obvious that bushmechanic's said it many many times WHY he got valve bounce and WHY the seated force was such as it is in his install AND what seated force you'd see in a stock head!

Bushie's posting specifications isn't a weakness and it's getting pretty damn annoying to see you try to spin it that way. To further persuade you to shut up, I can also tell you that it's GLARINGLY OBVIOUS that you're NOT posting specs. HOW do your springs guard against valve bounce? And if they're so great for a 450, aren't they unnecessarily stiff for a 650?

Last edited by tourist; March 9th, 2015 at 03:07 PM.
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