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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:34 am 
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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:36 am 
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Der Luft Doktor
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ConcreteAce wrote:
mk-Zero wrote:
the distance the bottom of the shock moves left to right or front to back from that kit has almost no bearing on the shock travel what so ever. Let's assume the bottom of the shock moves like 3 inches left to right, front to back, or some combination. The shock is what, about 20" or so long? 3" over 20 " is an angle of 8 degrees (arctan(3/20)). The difference in travel is therefore (1 - 1/cos(8 degrees))x100% = 0.97%. So if you can really feel a 1% increase in shock travel then I guess you're right, lol. Even if you assume you move the bottom of the shock 5", it's still only a 3% increase in shock travel. Trigonometry is your friend ;)



thats all fine and dandy with the big talk. but what doesnt lie is a tape measure I just went out and measured I have 14 1/4 inch from bolt to bolt. I will be quite suprised if your car measures that.



The length is irrelevant to how the shock functions, as long is it's not bottoming out. Shocks basically produce a force that is proportional to the speed at which they are compressed (or extended). The starting length isn't important. My explanation showed how moving the bottom location of the shock has no appreciable effect on the rate at which the shocks moves, and therefore no appreciable effect on the force it produces. It's simple mechanics and some trig.
you are right though, my shock measures like 11.5", but I grantee you yours isn't damping more than a couple percent more, which no human would be able to tell the difference.

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:39 am 
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The Ukrainian
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mk-Zero wrote:
ConcreteAce wrote:
mk-Zero wrote:
the distance the bottom of the shock moves left to right or front to back from that kit has almost no bearing on the shock travel what so ever. Let's assume the bottom of the shock moves like 3 inches left to right, front to back, or some combination. The shock is what, about 20" or so long? 3" over 20 " is an angle of 8 degrees (arctan(3/20)). The difference in travel is therefore (1 - 1/cos(8 degrees))x100% = 0.97%. So if you can really feel a 1% increase in shock travel then I guess you're right, lol. Even if you assume you move the bottom of the shock 5", it's still only a 3% increase in shock travel. Trigonometry is your friend ;)



thats all fine and dandy with the big talk. but what doesnt lie is a tape measure I just went out and measured I have 14 1/4 inch from bolt to bolt. I will be quite suprised if your car measures that.



The length is irrelevant to how the shock functions, as long is it's not bottoming out. Shocks basically produce a force that is proportional to the speed at which they are compressed (or extended). The starting length isn't important. My explanation showed how moving the bottom location of the shock has no appreciable effect on the rate at which the shocks moves, and therefore no appreciable effect on the force it produces. It's simple mechanics and some trig.
you are right though, my shock measures like 11.5", but I grantee you yours isn't damping more than a couple percent more, which no human would be able to tell the difference.


Makes sense.

I just measured mine and it's 12.75" or so.

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:51 am 
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The length is irrelevant to how the shock functions????



please if it where irrelevent there would be no need for lowered shocks. a shock is only going to compress so far. if you have a car lowered and the shock is completly compressed then it would be like having a steel bar bolted in there.



So what you are saying is that my bone stock oval has the same amount of travel as your slammed bad ass oval? I call BULLSHIT

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:58 am 
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:P Man,you guys are cracking me up! Who's brave enough to crawl under my ride and measure some shocks?! :nono: ! w:pw Chris, the Ghia is looking great.I'm glad it's coming together.

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 12:58 am 
EAnderson wrote:
:P Man,you guys are cracking me up! Who's brave enough to crawl under my ride and measure some shocks?! :nono: ! w:pw Chris, the Ghia is looking great.I'm glad it's coming together.

Thanks man! :thumbs:


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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 1:01 am 
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Der Luft Doktor
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LOL!
read it again: I said "as long as it's not bottoming out".
yeah, if you lower a front end and use stock length shocks the shock will bottom out.
I run stock length shocks on the back of my car and they don't bottom out, mu sump hits the ground before they do, lol

so yeah, as long as the shock doesn't bottom out (as I said...), the length is irrelevant to the damping.


It's all in good fun guys, hopefully no one is getting bent out of shape over it :P

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 1:04 am 
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mk-Zero wrote:
LOL!
read it again: I said "as long as it's not bottoming out".
yeah, if you lower a front end and use stock length shocks the shock will bottom out.
I run stock length shocks on the back of my car and they don't bottom out, mu sump hits the ground before they do, lol

so yeah, as long as the shock doesn't bottom out (as I said...), the length is irrelevant to the damping.


It's all in good fun guys, hopefully no one is getting bent out of shape over it :P



I'm not bent out of shape :thumbs: but i do have more travel before I bottom out. some of us need more travel in our suspension than others :thumbs:

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 1:06 am 
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Chris..........no more modifications,I can't handle this :furious: :furious: :furious:

J/K this is great how a drop plate and shock travel can stir up so much!!!! :lol: :lol:

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 Post subject: Re: Chris P's '67 Ghia
PostPosted: Sat Mar 06, 2010 1:06 am 
mk-Zero wrote:
LOL!
read it again: I said "as long as it's not bottoming out".
yeah, if you lower a front end and use stock length shocks the shock will bottom out.
I run stock length shocks on the back of my car and they don't bottom out, mu sump hits the ground before they do, lol

so yeah, as long as the shock doesn't bottom out (as I said...), the length is irrelevant to the damping.


It's all in good fun guys, hopefully no one is getting bent out of shape over it :P

Makes for some good reading! :thumbs:


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