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Author Topic: Spring selection  (Read 21095 times)

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Re: Spring selection
« Reply #135 on: April 14, 2009, 02:09:43 PM »
Its not about the car its about the wheel, hell maybe i am wrong to..
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Offline fabr

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Re: Spring selection
« Reply #136 on: April 14, 2009, 02:40:17 PM »
I SHOULD be saying wheel travel and not car travel.Sorry. The shock travel is greater in relationship to the wheel travel when raked as opposed to straight up. Therefore the NEEDED rate is different.Just laying it over tho does not change that particular spring rate. Now are we on the same page?
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Re: Spring selection
« Reply #137 on: April 14, 2009, 02:44:58 PM »
if the shock layed back the same as the rake angle, then i cant see any difference in wheel travel to shock travel... As i said, if it was ideal with 0 rake, and you raked everything equal, shocks, mounts etc, the wheel travel shock travel will not change...
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Offline fabr

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Re: Spring selection
« Reply #138 on: April 14, 2009, 03:26:58 PM »
Yes it will.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

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Re: Spring selection
« Reply #139 on: April 14, 2009, 03:28:23 PM »
How?
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LiveWire

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Re: Spring selection
« Reply #140 on: April 14, 2009, 03:29:20 PM »
With rake, the vertical wheel travel will be slightly less than if measured perpendicular to the A-arm pivot axis. Less travel for the same springs would be stiffer.

So if being anal, Bug is technically wrong. Use words like close instead of same to protect yourself from being nit picked.  :police:

When I said motion ratio, I was referring to vertical wheel travel as compared to shock shaft travel. So I took rake into account as well.

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Re: Spring selection
« Reply #141 on: April 14, 2009, 03:36:22 PM »
How does the wheel travel any bit different to the shock? That is what is being debated..
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Offline fabr

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Re: Spring selection
« Reply #142 on: April 14, 2009, 03:39:27 PM »
The shock will travel/stroke farther with rake for the same amount of vertical wheel travel as compared to a non raked front suspension.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: Spring selection
« Reply #143 on: April 14, 2009, 03:40:30 PM »
Note VERTICAL wheel travel and not rake travel. Does that help?
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline Boostinjdm

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Re: Spring selection
« Reply #144 on: April 14, 2009, 03:42:20 PM »
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Offline Boostinjdm

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Re: Spring selection
« Reply #145 on: April 14, 2009, 03:44:01 PM »
Quote from: Masterfabr on April 14, 2009, 03:40:30 PM
Note VERTICAL wheel travel and not rake travel. Does that help?

This is in line with what I was saying, just in fewer words. ;D
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Re: Spring selection
« Reply #146 on: April 14, 2009, 03:55:05 PM »
Well with rake, the wheels dont move vertical...
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Offline Boostinjdm

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Re: Spring selection
« Reply #147 on: April 14, 2009, 04:10:56 PM »
Actually they do, they just also move horizontal at the same time.  That is why you need a correction factor.
« Last Edit: April 14, 2009, 04:13:32 PM by Boostinjdm »
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Re: Spring selection
« Reply #148 on: April 14, 2009, 04:13:55 PM »
Actually the force can only move whatever way the pivots let it, so it is not moving vertical either... Would my spring rate and motion ratio change if i had a non rake car and hit the approach to a hill? effectively the force would be pushing back correct?
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Offline Boostinjdm

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Re: Spring selection
« Reply #149 on: April 14, 2009, 04:22:43 PM »
does you plumb bob hang crooked too?  According to what you are spewing,  your springrate would still be correct on the moon. ::)  It wouldn't,  the variable is gravity.  which direction does gravity apply it's force?  Straight down.  I'm done. 
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