LamboClone - The Premier Site for Lamborghini Replica Builders
How To - Tips => Doors => Topic started by: notnilc20 on October 02, 2013, 09:41:15 PM
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Hate to make a new thread about this but found nothing on it in existing threads. But what is the length and load capacity in lbs. for the door shocks that you get when you buy a kit from Carkitinc? Thanks.
Also i tried contacting Jackie via email and telephone to no avail.
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This is going to depend on how heavy your doors are. If you use glass instead of plastic windows (or no windows at all) or heavier interior framing for safety and stability can all make a difference. Also how you decide to finish the interior (door panels) can have an impact on the weight of the door. Inexpensive gas door shocks can pop the doors up when unlatched with a door popper when the weight of the door is less than the force exerted by the shock and fulcrum point on the door.
The issue with using a door shock that is too strong is the risk of door always pushing up on the latch (might lead to a door opening accidental) or more practically, pulling the door back down into the latched position once you are sitting in the car. Picture yourself standing outside the car and pushing down on the door and how different this is than sitting in a car and trying to pull down on the door. Ideally the weight of the doors should be balanced with the strength of the shock so they'll pop up nicely by themselves when unlatched but require minimal pull force when trying to pull them closed.
Some members have suggested using the McMaster-Carr Reducible-Force Gas Springs with Fittings that allow you to let some gas out of the shocks to achieve that perfect balance.
http://www.mcmaster.com/#gas-shocks/=orpmbp (http://www.mcmaster.com/#gas-shocks/=orpmbp)
Chris
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A great tip that someone added here once was to use a large rubber band in place of your shocks when doing your mock up. You can easily move the ends around and test the travel and clearance of the shock in relation to the windows when the windows are up and down.
Chris
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Yeah i saw those Mcmaster shocks and was wondering on the shocks that are adjustable there is one that says 200-249 does this mean the max is 249 and the minimum is 200? Or could you let more gas out to get it to say 180lbs?
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I believe that they come with a little gauge and you can let as much gas out as you want however you can't add gas. The trick is to let a little out at a time and make sure you leave a little extra in the shock to compensate for eventual leakage that will occur over time.
Chris
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It's been my observation that shocks work differently at different temperatures. Especially as they get older.
A shock that works well on a warm afternoon may drop the hatch down on your head the next cold morning.
My point is take that into consideration before letting too much out. Too much gas is better then not enough.
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Check out www.austinhardware.com (http://www.austinhardware.com) . They have a chart for calculating the correct shock to open and support a hatch, which is the same geometry as a Lambo door. This company has all kinds of specialty and hard to find pieces, including Murcy door handles for $30.
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I have the same problem...I have InlandExotic body which is pretty much same as CarKitInc and I have robslp640 door frames installed does anyone know which McMaster shock I should buy?What force?What extended length?Compressed length?Stroke length?....McMaster-Carr website is very good and let's you choose each specification i just wish i knew which ones to get...if anyone knows please let me know
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I'd order an OEM door shock. It's already the proper length and has adequate force. If the force turns out to be too much, just add more weight to the door to equalize it.
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I highly recommend part number 6465K7 from this page:
http://www.mcmaster.com/#gas-shocks/=oru47q (http://www.mcmaster.com/#gas-shocks/=oru47q)
After installing a fresh 6465K7 shock on my door I couldn't pull it down. I used a small allen key to let a little gas out at a time until I could pull it down and the door would go up on it's own.
This shock takes all the guess work out and it also has a cushion at the top of it travel. The shocks from naerc didn't have this cushion. The door would go up and slam hard at the end of it's travel.
The 6465K7 shock travels up and then slowly stops at the top no matter how fast it is rising.
BTW, I used 2 as 'working shocks' on the doors during the build and then recycled them onto the engine deck lid by reducing the gas even more. I used 4 of these on my car.
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Check out [url=http://www.austinhardware.com]www.austinhardware.com[/url] ([url]http://www.austinhardware.com[/url]) . They have a chart for calculating the correct shock to open and support a hatch, which is the same geometry as a Lambo door. This company has all kinds of specialty and hard to find pieces, including Murcy door handles for $30.
Which part # for the handles? Couldn't find it through the whole list :S
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Which part # for the handles? Couldn't find it through the whole list :S
+1
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O.K. sorry about that. Austin is a distributor for www.southco.com (http://www.southco.com) and will order anything in the southco catalog but they do not list in their catalog everything in the Southco catalog. Southco has several that are the same shape and style, and are available in various actions. I have wondered if maybe they are the OEM supplier. If you still need a part number, give me a day.
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Seeing less results on there, might be similar operating style handles but not close enough to the murcies
assuming you meant oem handles
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I just added a picture of a handle to http://s1344.photobucket.com/user/stricklandracinginc/library (http://s1344.photobucket.com/user/stricklandracinginc/library) . I have looked all over it and do not find a part number. This is one of several samples that they sent me before I decided to order these. I was actually looking for an emergency override handle to tuck up in the naca duct for a Countach. This one was the best fit but the other samples were more accurate. The trouble is all of the other samples and the packing list with the part numbers are in Texas and I am in Atlanta.
I also added a photo of their hinge that I use on doors. This is not authentic but it is a good looking stainless steel piece with stainless pins and bushings, making it absolutely solid with no shimmy. I combine two hinges to give it extra mounting points. I have an OEM deal with Austin so the prices I quote are based on that but I am pretty sure I remember those hinges at about $14 each. Again it is not accurate but using two per side that is $56 for a pair of nice stainless hinges.
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for murcielago how big does shock need to be when extended?what about when compressed?what lbs to comfortable open and close door?
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27.76" Extended
15.94" Compressed
11.82" Stroke
Part Number 6465K7
Price $58.60
Totally adjustable pressure
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I was lucky enough to get some good used door gas shocks with all their hardware. I know there has been some questions regarding the length so here are some pictures for you guys. If you need more let me know. ::beers
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Off topic..
Pedro..
Did you get the rest of the panels yet?
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Keep in mind that all doors are not equal weight. What works for Bill won't work for Belle.
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Belle is making a car also?...
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She hasn't started a build thread yet but here's her wiki page
http://en.m.wikipedia.org/wiki/Belle_(Disney) (http://en.m.wikipedia.org/wiki/Belle_(Disney))
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oooooh yellow is nice..... :)
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You guys have been out in the garage tooooooooo long with the mountain dew!
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for murcielago how big does shock need to be when extended?what about when compressed?what lbs to comfortable open and close door?
Is that for a pair or a piece?
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$61.65 each at Mcmaster-carr. www.mcmaster.com (http://www.mcmaster.com). Adjustable pressure to your door weight.
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Thank you. I'm gonna order me a pair.
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$61.65 each at Mcmaster-carr. [url=http://www.mcmaster.com]www.mcmaster.com[/url] ([url]http://www.mcmaster.com[/url]). Adjustable pressure to your door weight.
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Maybe you could post a link to the actual page where the door shock is shown, or maybe a part number for the shock?
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Here is the website with the gas pressure adjustable door shock.
http://www.mcmaster.com/#gas-shocks/=135piyz (http://www.mcmaster.com/#gas-shocks/=135piyz)
Type 6465K7 in the search box (upper left).
::thumbup 01
I highly recommend part number 6465K7 from this page:
[url]http://www.mcmaster.com/#gas-shocks/=oru47q[/url] ([url]http://www.mcmaster.com/#gas-shocks/=oru47q[/url])
After installing a fresh 6465K7 shock on my door I couldn't pull it down. I used a small allen key to let a little gas out at a time until I could pull it down and the door would go up on it's own.
This shock takes all the guess work out and it also has a cushion at the top of it travel. The shocks from naerc didn't have this cushion. The door would go up and slam hard at the end of it's travel.
The 6465K7 shock travels up and then slowly stops at the top no matter how fast it is rising.
BTW, I used 2 as 'working shocks' on the doors during the build and then recycled them onto the engine deck lid by reducing the gas even more. I used 4 of these on my car.
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How about for the rear deck lid? I need to replace the NAERC supplied deck-lid shocks
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Oops! Should have been posted in the "Replica / Modified Parts Wanted" group. Here goes as we need more info:
How long is your assist strut fully extended?
How long is your assist strut collapsed?
How much pressure does it take to collapse the strut? (Push the one with the most gas in it on top of a bathroom scale)
Take these findings to the McMasters website and match them to their catalogue listings. Be sure to pick the correct ends on the strut also. https://www.mcmaster.com/#gas-struts/=18xs50w (https://www.mcmaster.com/#gas-struts/=18xs50w)
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