thepest
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| posted on 17/5/08 at 04:22 PM |
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GTS coilover
Is anyone using the GTS type shocks? I am trying to order new springs with different rates but I am unsure of the internal diameter to use. I measured
the thread of the coilover and is 44.5mm. If I use internal diameter springs of 1.9in (48.5mm) would it be ok on my type of shock?
Here is a photo of my coilover:
 
Gts Shock 2
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paulf
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| posted on 17/5/08 at 04:27 PM |
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Yes they are 1.9 inch dampers.
Paul.
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mr henderson
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| posted on 17/5/08 at 04:43 PM |
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You will need to know the unfitted length as well, of course.
If that is a coilover off your car it looks like the suspension travel is quite limited. Are you thinking of going for a longer, softer spring?
[Edited on 17/5/08 by mr henderson]
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thepest
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| posted on 17/5/08 at 04:43 PM |
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Thanks Paul, and one other thing please. I jacked the car up to have a look at the shock length when unloaded. The length between the (not sure how to
describe it so attached a photo) is 8.5 inches. So does that mean I should be using 8 inch free length springs all around or should the lengths be
different in the front and rear?
 
Coilover-edit
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thepest
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| posted on 17/5/08 at 04:48 PM |
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Just came back from the garage Mr Henderson, so I missed your post. In fact I wanted to ask about what spring length to use... I also saw your post
in my other thread, I have tried riding in a Dax Rush, which seems to
be softer but then again 200kg heavier than me.
I took a 110Kg passenger once with me and the ride improved by ALOT, so thats why I was hoping to get a better result with using softer springs.
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mr henderson
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| posted on 17/5/08 at 05:02 PM |
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quote:
Originally posted by thepest
I took a 110Kg passenger once with me and the ride improved by ALOT, so thats why I was hoping to get a better result with using softer springs.
Remember what someone (maybe me) was saying about the ration of sprung to unsprung weight? The higher the sprung weight, the better the ride.
That's one of the reasons why Rolls Royce's are so heavy.
Colin Chapman was a big believer in soft springs/stiff shocks, and the Lotus cars from his era were rnowned at providing a great combinatin of ride
and road holding.
Softer springs wil help, how much remains to be seen. Take your friend out with you more often, and eat more yourself, it all helps
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thepest
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| posted on 17/5/08 at 05:10 PM |
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Ok, I can do all that. However if I reduce the unsprung weight it, will improve the ride quality as well or just the handling?
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mr henderson
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| posted on 17/5/08 at 05:32 PM |
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quote:
Originally posted by thepest
Ok, I can do all that. However if I reduce the unsprung weight it, will improve the ride quality as well or just the handling?
Reducing the unsprung weight will only help the handling inasmuch as it will help to keep the wheels in contact with the road.
Consider the situation when a wheel goes over a bump. The lower the weight (mass to be precise) the less difficulty the springs will have in
overcoming the desire of the wheel to continue in an upward direction.
What you really want from the suspension is to allow the wheels to go up and down as necessary to smooth out the bumps in the road, whilst the car
itself stays where it is. The softer the springs, the easier it is for the suspension to do this.
The problem comes when you want to go round corners.
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thepest
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| posted on 17/5/08 at 05:37 PM |
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Yeah, thats where anti-roll bars come in....
Thanks for the info, I'll keep a few sets of springs and experiment. It is a Lowcost after all.
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