Just a very general question with no specific model/parts...
I want to fit some fully sealed, zero gas, 100% oil shocks upside down.
(so the metal stem is at the top of the shock mount and the oil res is at wheel side)
Other than the added weight to the moveable wheel, is there any sort of no-nos about shocks? Gas,foam or oil?
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Oil filled shocks, any probs fitting them upside down?
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Oil filled shocks, any probs fitting them upside down?
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If the shocks are pressurised (i.e. self extend with a decent amount of force when off the vehicle) then they're probably high pressure gas with a seperator piston and run fine upside down.
If they don't self-return, then no they can't run upside down as the internal air pocket will stop the foot valve from working.
If they don't self-return, then no they can't run upside down as the internal air pocket will stop the foot valve from working.
I think we need specific shock info.
Generally, no. Edelbrock shocks, OME LTR's, and Bilsteins can go in upside down.
running shocks upside down can root their valving too. The Australian Rancho distributor used to (may still?) suggest upside down mounting RS9000's to get the fitment right, but I've had 9000's dyno'ed upside down and the valving is whack- compression valving dissapears.
Steve.
Generally, no. Edelbrock shocks, OME LTR's, and Bilsteins can go in upside down.
running shocks upside down can root their valving too. The Australian Rancho distributor used to (may still?) suggest upside down mounting RS9000's to get the fitment right, but I've had 9000's dyno'ed upside down and the valving is whack- compression valving dissapears.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
i ran Rancho's upside down to protect the adjustment nut thingy, they were fine.
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They were fine as in they didn't leak or they were fine as in they valving was correct?
They do "work" in that they dont leak upside down.
They definitely no not valve properly upside down. I've got the dyno sheets to prove it. Basically, compression valving vanished. (They also did strange stuff as they changed direction - all the valving vanished altogether, as though the piston was running in air. Dad ran his 9000's upside down in his 80 series (front) for a while and that was borne out in the vehicles behaviour.
In a buggy or leaf sprung car, they might be ok, but there's no way they are working the way Rancho intended.
Steve.
They do "work" in that they dont leak upside down.
They definitely no not valve properly upside down. I've got the dyno sheets to prove it. Basically, compression valving vanished. (They also did strange stuff as they changed direction - all the valving vanished altogether, as though the piston was running in air. Dad ran his 9000's upside down in his 80 series (front) for a while and that was borne out in the vehicles behaviour.
In a buggy or leaf sprung car, they might be ok, but there's no way they are working the way Rancho intended.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
Depending on the oil fill, if the foot valve is running in air the rest of the oil can just move with the main piston instead of through it.Gwagensteve wrote:Well, it'd be the foot valve running in air, but I thought that was getting a bit technical to explain.
Steve.
Hence no damping until you either froth the oil or get enough shaft movement to get oil back to the foot valve.
Re: Oil filled shocks, any probs fitting them upside down?
To me this suggests the reservoir is at the bottom and the exposed shaft is at the top, which is the correct way of fitting them.lolergram wrote:I want to fit some fully sealed, zero gas, 100% oil shocks upside down.
(so the metal stem is at the top of the shock mount and the oil res is at wheel side)
[quote="Uhhohh"]As far as an indecent proposal goes, I'd accept nothing less than $100,000 to tolerate buggery. Any less and it's just not worth the psychological trauma. [/quote]
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In my Sierra i have shocks which are a bit too stiff, could i flip them and they would be softer? Dodgy fix i know, but could it work?Gwagensteve wrote:They were fine as in they didn't leak or they were fine as in they valving was correct?
They do "work" in that they dont leak upside down.
They definitely no not valve properly upside down. I've got the dyno sheets to prove it. Basically, compression valving vanished. (They also did strange stuff as they changed direction - all the valving vanished altogether, as though the piston was running in air. Dad ran his 9000's upside down in his 80 series (front) for a while and that was borne out in the vehicles behaviour.
In a buggy or leaf sprung car, they might be ok, but there's no way they are working the way Rancho intended.
Steve.
And to the other people who fix shocks upside down, doesn't the dust guard fill with crap??
Mike
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