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Old 08-21-2016, 12:26 AM   #1 (permalink)
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Default Refill ECS Struts - Thicker oil - Increased Dampening

I have about 3 sets of ECS Struts piled up most of which are blown/weak and they all are technically in my scrapyard pile to be tossed...

I was talking to a good ol' hot rodder who was talking about how back in the day they would drain the oil out of their shocks, and refill with thicker oil for increased dampening (Or the same)

I recently ditched the coilovers on my one car to go back to ECS + Tein Springs and I absolutely love it, I forgot how good that combo is...

Anyone have any thoughts on doing something like this? Most of what I've found is drilling a hole, draining old oil, adding new oil, bleeding/pumping the air out, then welding the hole shut...

My main concern is if you have a bad seal which is one of the reasons these struts go bad anyways - You'll just push all the fresh oil out, but I guess it can thin and breakdown over time as well even without leaking...

I'm sure it won't be long before ECS Struts become unavailable from Vendors/Mitsubishi, Would be nice to know its an option to have yours refilled when that day comes...
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Old 08-21-2016, 01:36 AM   #2 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

I've always fancied this myself. I suspect you'd need to sacrifice a few to complete failure before achieving a partial success.

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Old 08-21-2016, 09:35 AM   #3 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

I was excited about ecs strut rebuild, too. I was even thinking about shorten the length of travel to compensate with the lowering springs. But they are filled with pressurize gas also, that we don't have equipment to do it.
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Old 08-21-2016, 11:21 AM   #4 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

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Originally Posted by StockVR-4 View Post
I was excited about ecs strut rebuild, too. I was even thinking about shorten the length of travel to compensate with the lowering springs. But they are filled with pressurize gas also, that we don't have equipment to do it.
They have to be able to weld on a schrader type valve to pressurize them. DG talked about it for bilsteins on his site.
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Old 08-21-2016, 01:22 PM   #5 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

I thought the ECS struts were Oil Filled? STIM uses the word "Oil" at least, and on several of the blown struts there is a grease/dirt build up that looks like oil or something that has leaked out of the strut over time...

http://www.stealth316.com/images/stim/tim_02-12.gif

Would definitely be important to confirm if it is gas or oil filled...
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Old 08-21-2016, 01:31 PM   #6 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

i bought a new set of ECS shocks from ninja performance and now I'm saving the old set of ecs struts with the hope they can be saved/rebuilt.it seems to me the car is sitting higher with the new ECS shocks.

subbing for updates.
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Old 08-21-2016, 01:36 PM   #7 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

Personally I think for what I do and plan to do with this car, the stock dampening is perfect - but would be a nice option to have a easy way to increase the overall dampening. This car specifically is not a race car, and will only see very casual track use, so I don't want to get into anything very race car like since I just ditched my coilovers to go back to ECS (which are forsale for the low price of $350 shipped to the 48 by the way)

Really I'm just looking for an alternative way to save ECS Struts since lets face it - There is only a limited supply of them...
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Old 08-21-2016, 02:39 PM   #8 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

Quote:
Originally Posted by Warzone View Post
I thought the ECS struts were Oil Filled? STIM uses the word "Oil" at least, and on several of the blown struts there is a grease/dirt build up that looks like oil or something that has leaked out of the strut over time...

http://www.stealth316.com/images/stim/tim_02-12.gif

Would definitely be important to confirm if it is gas or oil filled...
They are oil filled but they are also pressurized with a gas to keep air bubbles from forming in the oil as it gets forced through the tiny orifices. This is standard practice and gets called "gas charged"
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Old 08-21-2016, 05:49 PM   #9 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

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Originally Posted by striker3 View Post
They are oil filled but they are also pressurized with a gas to keep air bubbles from forming in the oil as it gets forced through the tiny orifices. This is standard practice and gets called "gas charged"
And thats why you cant just refill them. There were some struts out in the real world that you unscrewed the old top and threw away the seal/piston/shaft and replaced it with a cartridge. Not applicable on this platform though.

-SP
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Old 08-21-2016, 05:58 PM   #10 (permalink)
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Default Re: Refill ECS Struts - Thicker oil - Increased Dampening

I've seen some people do inserts, and the struts being sold/on cars with inserts - but I don't feel like any of the inserts out there outperform the ECS... plus they aren't ECS..

That sucks though
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