scootz
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| posted on 8/9/08 at 07:38 PM |
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Inboard Suspension
What are the pro's?
Worth the hassle?
PS - Also have a thread about centre-lock wheels on the go too if you want to contribute 
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tegwin
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| posted on 8/9/08 at 08:45 PM |
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Less unsprung weight....Less aerodrag...Allows for progressive suspension (Provided you get the pivots right)
More complex, potentially heavier, takes up valuble space for radiator/engine...
IMHO...Pointles on a s7even....But worth doing if you want some fun
[Edited on 8/9/08 by tegwin]
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www.verticalhorizonsmedia.tv
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gazza285
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| posted on 9/9/08 at 03:59 AM |
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quote:
Originally posted by tegwin
Less unsprung weight
Explain? More components usually, or larger wishbones/rockers to cope with the additional forces.
DO NOT PUT ON KNOB OR BOLLOCKS!
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nick205
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| posted on 9/9/08 at 09:23 AM |
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quote:
Originally posted by gazza285
quote:
Originally posted by tegwin
Less unsprung weight
Explain? More components usually, or larger wishbones/rockers to cope with the additional forces.
(slightly) Lower weight is achieved if you use a pushrod where the shock would usually reside and have a rocker arm pivoting where the shcok top mount
would usually sit. The shock then sits in the chassis (see MNR chasis for e.g.).
IMHO the unsprung weight saving is marginal in comparison to fitting light weight calipers or uprights, where the weight has more effect as it's
furthest away from the pivot points.
One major benefit of this arrangement is that you can use a pushrod with adjustable rod ends adjust the front ride height of the car without
compromising the travel or spring pre-load of the shock. If chosen carefully you could use shocks without adjustable spring platforms.
The other method of using the entire op wishbone as the rocker arm probably does increase the overall weight and doesn't have the additional
ride height adjustment benefit.
[Edited on 9/9/08 by nick205]
[Edited on 9/9/08 by nick205]
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02GF74
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| posted on 9/9/08 at 09:50 AM |
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inboard means your springs and shocks are out of the elements so will rust less.
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iank
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| posted on 9/9/08 at 09:56 AM |
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quote:
Originally posted by 02GF74
inboard means your springs and shocks are out of the elements so will rust less.
But on the downside get hotter (in a 7)
IMO If you're designing from scratch then why not - Sylva cars use them and handle extremely well - if retro fitting then almost certainly not
worth the effort.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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gazza285
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| posted on 9/9/08 at 05:51 PM |
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quote:
Originally posted by nick205
quote:
Originally posted by gazza285
quote:
Originally posted by tegwin
Less unsprung weight
Explain? More components usually, or larger wishbones/rockers to cope with the additional forces.
(slightly) Lower weight is achieved if you use a pushrod where the shock would usually reside and have a rocker arm pivoting where the shcok top mount
would usually sit. The shock then sits in the chassis (see MNR chasis for e.g.).
IMHO the unsprung weight saving is marginal in comparison to fitting light weight calipers or uprights, where the weight has more effect as it's
furthest away from the pivot points.
One major benefit of this arrangement is that you can use a pushrod with adjustable rod ends adjust the front ride height of the car without
compromising the travel or spring pre-load of the shock. If chosen carefully you could use shocks without adjustable spring platforms.
The other method of using the entire op wishbone as the rocker arm probably does increase the overall weight and doesn't have the additional
ride height adjustment benefit.
[Edited on 9/9/08 by nick205]
[Edited on 9/9/08 by nick205]
The push rod sits where the shock sits, yes I agree, but the shock still contributes the same weight to the unsprung weight wherever it sits as the
same portion of it is unsprung, so all you have done there is add the weight of the pushrod to the unsprung weight you already had. No reduction in
unsprung weight at all, but an increase.
DO NOT PUT ON KNOB OR BOLLOCKS!
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nick205
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| posted on 9/9/08 at 07:27 PM |
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Agreed - the overall weight goes up, but in real terms the effect should be an improvement (albeit marginal) as the weight moves closer to or the
other side of the pivot points and towards the centre line of the car.
[Edited on 10/9/08 by nick205]
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NS Dev
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| posted on 10/9/08 at 12:24 PM |
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Pointless on a 7 type car really.
If you fancy the engineering challenge, there's no harm done, but not necessary.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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