birdii
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| posted on 3/7/06 at 08:18 PM |
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Rear Ride Height Question!
I have been busy making the trailing rods and now I have assembled the rear suspension for the first time!
I'm just a little worried about the positioning of the rear shock top mount, its not on the chassis drawings and i only have a few vague
photo's to go on. Anyway, i have positioned it as best as i can, its as high up as i can get it without twisting the shock. I have calculated the
ride height now and it looks like i'll have about 5 1/2 inches ride height at the rear, is that normal? That would leave about 30mm travel on the
shcok before hitting the stop.
How high are your cars at the rear?
Here's a pic to show how things are:
 
Rear Suspension 2
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Mansfield
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| posted on 3/7/06 at 09:12 PM |
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I would be very worried by 30mm shock travel.
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Gav
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| posted on 3/7/06 at 10:20 PM |
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IIRC the GTS locost shocks have 3" stroke anyway with a 10.5" ride height for the shock, so if you take those dimensions you should be
able to work out the chassis ride height.
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MikeR
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| posted on 3/7/06 at 10:43 PM |
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on 'normal' live axle cars the shock is mounted on the bottom of the 3mm plate.
I've heard it said that the shock also needs to be rose jointed to take into acount the left / right & front / back movements.
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Peteff
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| posted on 3/7/06 at 11:15 PM |
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the left / right & front / back movements.?
If your axle moves in that many planes you are in trouble. When you put a spring on that it's going to lift it, have you got room to put a nut
on there with the bracket in that position, don't tack it as it is or you'll never get the damper out 
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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birdii
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| posted on 4/7/06 at 06:37 AM |
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It wouldn't be possible to put it under the top plate because i would have to put serious pressure on the damper to twist it forward enough.
The bracket is already tacked on and the shock does go in and out easily, i checked that! And there is loads of space for the nuts.
The stroke on these shocks (from GTS sized for the dedion) is 60mm when you take into acount the rubber donut, so i was working on the theory that
normal ride hide should be mid-stroke, 30mm.
So at mid-stroke i would have a calculated ride height of 5 1/2 inches. I realise everything changes once the weight of the car is on it and springs
are fitted, but mid stroke will still be in the same place and the spring base should adjust to bring the car to this level.
What is normal ride height though? Is 5 1/2 inches low enough, or too low?
From pic's that i have seen the GTS chassis does have the brackets welded sideways like this rather than on the top plate, does anyone have a
good close-up pic of this though, i could so with seeing some more detail.
Cheers
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birdii
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| posted on 4/7/06 at 06:42 AM |
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This picture shows the position of the bracket better and my problem getting it forward enough to go on the underside of the plate:
 
Rear Suspension 3
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andyace
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| posted on 4/7/06 at 07:34 AM |
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I will put a pic of mine on tonight. GTS chassis with GTS shocks.
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birdii
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| posted on 4/7/06 at 07:46 AM |
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quote:
I will put a pic of mine on tonight. GTS chassis with GTS shocks.
Thanks! I would appreciate that.
Any idea what your rear ride height will be yet?
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dozracing
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| posted on 12/7/06 at 03:55 PM |
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Dan,
Give me a call tomorrow and i'll take you through it all.
Kind regards,
Darren
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birdii
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| posted on 12/7/06 at 04:13 PM |
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Cheers Darren, will do that!
Dan
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andyace
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| posted on 12/7/06 at 08:15 PM |
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Pictures in my photo archive under folder 'Rear Shocks'
This is a GTS made chassis with GTS Shocks.
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