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Discussion Starter #1
Here I have prepared a quick procedure to fit gas struts to the trunk hinges of a fifth gen Prelude. I believe that with minor modifications, this can also be done to the fourth gens as well, which is something I'll investigate this week. Please ensure that when performing any modifications that you use all the appropriate safety equipment and fully plan any procedures to avoid monumental fuckups.

This is the bracket I fabricated. I used aluminium angle bar because it's what I had, but if you can't be bothered I'm sure your local hardware shop will have a bracket that will do the job.



Pop-riveted into place





I used pop-rivets to secure the brackets, but PK screws or similar would work fine as well. I would recommend putting some double sided tape on the side of the bracket you intend on fastening to your car, both to act as an insulator against noise (if you have a bassy ICE install this is an absolute must!) and to hold the bracket in place while you drill holes for the rivets.



The struts are around 8 inches (200mm) long, with an extended length of about 12 inches (300mm). I've got them charged to 66lb (30kg) each, but this is a bit overkill. With the one 30kg strut, the trunk would only sit slightly open when popped (like a couple of inches) and it did hold the lid up (I have the OEM spoiler) but a big wind gust would blow it down. Not to the point where it would bonk you on the head, but it would lower it. If there's a strut reconditioner in your area then give them a call, with a bit of luck they would be able to charge one to the exact pressure you want/need.

Next give the struts somewhere to bolt into. Using a strut with a push on head will be a slightly different procedure here, but it's the same principal.



Try and be a little bit more careful than I was with the location of the hole here. It's not perfect, and while it does the job magnificently, I'm a finicky bastard, and it will be a cause of irritance for years to come.




Make sure you install the struts this way so that when they're in the fully closed position all the oil runs down to the seal. Apparantly fitting them the other way can/will cause major damage to the seal.


Now I used struts with eye heads on them for bolts because that's what I could get. If you use that sort of head, then I would recommend washers and Loctite for a mechanism that you shouldn't need to touch for years.

 

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It seems that the struts limit trunk space when the trunk is closed, is this true?
 

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picture it when it is closed, the damper is mounted to the lowest part of the hinge, so when closed the damper is in a straight line from its mount to the lowest part of the hinge. Just an observation, I want to do this, but I think that it would hit my sub box.
 

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Discussion Starter #6
I'll take a pic of the thing closed when I get home tonight. I've mounted the the struts on the outside of the hinge for the exact reason of missing my sub box. It does take up some room, but none that I could actually use.

The struts themselves cost me AU$35 each, and the strut reconditioner man pressured them up to exactly where they needed to be in front of my eyes. If your area has a strut reconditioner then I would reccommend paying them a visit.
 

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the 'lude makes me poor.
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I never would have thought of doing something like this. As soon as I get back on my feet, I will definitely do this on my third gen. There is not much difference in the trunk from what I can see.
 

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where can i find the 8 inch shocks? anybody know a chain that sells them in the US? i did not find them in home depot or lowes...
 

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I installed an Accord trunk latch this weekend. Hopefully I can find some struts so I can do this conversion soon.

Thanks for the write up!
 
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