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View Full Version : Integrating a Trunk Mounted Jack


msanchez
09-15-2010, 12:37 PM
I've been wanting to do this for a while, and wanted some suggestions.
Has anyone else done this? Saw this on ziptied,
but i dont have an account to ask questions, so im bring it here.
http://i2.photobucket.com/albums/y18/hard_core_kid/carjacktrunk8fh.jpg

http://i2.photobucket.com/albums/y18/hard_core_kid/carjacklifted5la.jpg

Does anyone know where i can get a scissor jack similar to this?
Or did he add an extension to your typical scissor jack?
Show me some ideas if youve seen or done it differently.

CrimsonRockett
09-15-2010, 12:55 PM
GP Sports Quick Lifter kit.

http://www.apagency.jp/images/gpsport_qlefter.jpg

http://www.jdmop.com/images/images/dai%27sacademy/quicklifter3.jpg

http://www.gpsports.co.jp/quicklifter/images/quicklifter_01.jpg

I'm sure you could easily fabricate your own. No need to cut holes in your trunk and weld on extra shit.

xiaphin
09-15-2010, 01:04 PM
Interesting. Wouldn't mind having/making that

nathanong87
09-15-2010, 01:06 PM
all u need. i wanna hit air jacks while moving, maybe i can jump over cars.
http://farm5.static.flickr.com/4018/4468270324_55438b0784_b.jpg

duffman1278
09-15-2010, 01:08 PM
lol airjacks are like 800$ each?

I was going to attempt the GP one on my s13 at one point. However, it's some what difficult because the gas tank hugs the rear bumper and really doesn't allow space to weld. And even then, it seems pretty dangerous with the gas tank that close.

franklin93zx
09-15-2010, 01:10 PM
all u need. i wanna hit air jacks while moving, maybe i can jump over cars.

Speed racer style?

punxva
09-15-2010, 01:11 PM
i made my own jack point like the gp sports one i mocked it up on the car then pulled the reinforcement to do the final welding on it

msanchez
09-15-2010, 01:21 PM
The gp sports one doesnt really interest me, its just an overpriced jacking point.
air jacks are expensive. im looking to do this on the cheap.
although i wouldnt mind having the ability to jump over gorges, canyons, and the like.

keep the suggestions coming.

duffman1278
09-15-2010, 01:22 PM
i made my own jack point like the gp sports one i mocked it up on the car then pulled the reinforcement to do the final welding on it

Any images?

The gp sports one doesnt really interest me, its just an overpriced jacking point.
air jacks are expensive. im looking to do this on the cheap.
although i wouldnt mind having the ability to jump over gorges, canyons, and the like.

keep the suggestions coming.

All you really need is round tubing like this, just don't get it too thin! And weld it into the chassis

http://img.diytrade.com/cdimg/852508/7859575/0/1231928974/DIN2391_DIN1629_DIN17175_Steel_Tube.jpg

nathanong87
09-15-2010, 01:23 PM
lol airjacks are like 800$ each?

I was going to attempt the GP one on my s13 at one point. However, it's some what difficult because the gas tank hugs the rear bumper and really doesn't allow space to weld. And even then, it seems pretty dangerous with the gas tank that close.

i thought they were much cheaper than that...but obvious fabrication needs to occur to make those work lol. it would be awesome though. maybe a little air compressor/tank in the trunk.

msanchez
09-15-2010, 01:28 PM
All you really need is round tubing like this, just don't get it too thin! And weld it into the chassis

http://img.diytrade.com/cdimg/852508/7859575/0/1231928974/DIN2391_DIN1629_DIN17175_Steel_Tube.jpg

Ya i guess you could just flip a scissor jack upside down and weld tubing to the jacking point... my problem is finding something with a motor or pump like the one shown.

motorized would be rad. im lazy.

ThatGuy
09-15-2010, 01:50 PM
Go to your local "Pull-a-Part" and start rooting through trunks. I'm sure you can find a similar jack to the one shown. Then just fabricate away.

Ta-daa!

silviaguy240
09-15-2010, 03:03 PM
i thought they were much cheaper than that...but obvious fabrication needs to occur to make those work lol. it would be awesome though. maybe a little air compressor/tank in the trunk.

nooooooooo, you need like 200psi for airjacks to work correctly, local shop hosted dean kearney the week before Formula D Wall, and their system was at 165psi and it wouldnt even jack his car up halfway.

IIIXziuR
09-15-2010, 04:07 PM
yeah, I'd much rather have the system Speed Racer had on his car.
Straight up jump over d00ds. Mach 5 Style.

msanchez
09-15-2010, 08:11 PM
so, i bought a motorized scissor jack from harbor freight for 20 bucks.
im gonna cut off the crappy "remote"(plastic piece just asking to fail) it has and run it through a three point switch. up,off,down.
im thinking the easiest and best way to do it will be to notch the rear bumper support, and weld in the jack. it shouldnt hang any lower than the gp sport lifter, and my kitted bumper will hide everything... plus i dont have to cut up my trunk pan and loose a bunch of trunk space.

Tearlessj
09-16-2010, 01:15 AM
all u need. i wanna hit air jacks while moving, maybe i can jump over cars.
http://farm5.static.flickr.com/4018/4468270324_55438b0784_b.jpg

Ughhh,

This car pisses me off. He always rolls up to a show, parks it, and hits the air jacks. Hard "lifted" parking I guess.

articdragon192
09-16-2010, 01:19 AM
SuperNow has a pretty sick one for the FC. Luckily for me, my took hooks are easily accessible from the rear, haha

K_style
09-16-2010, 01:23 AM
That S2000 guy must be Hardparker guy... carrying that heavy shit....

Shame..

Om1kron
09-16-2010, 02:29 AM
The S2k is money and weather he "hard parks" it or not dude drives cross country to california to show the car off here. He still hasn't told me what setup he runs on his car. I would be completely down with a set of jacking points like the DSG Maxi 240rs has.

http://www.dentsport.com/wp-content/gallery/240rs-maxi-aero/dscf9442.jpg

But I guess that would require me to have a cage =(

drftwerks
09-16-2010, 02:37 AM
The S2k is money and weather he "hard parks" it or not dude drives cross country to california to show the car off here. (

is that a lol statement or not?
caused i lold, that someone would really do that shit. hahah

Om1kron
09-16-2010, 04:05 AM
is that a lol statement or not?
caused i lold, that someone would really do that shit. hahah

I just think it's funny that everyone on zilvia is quick to call someone a hard parker after going to like a drift day or two thinking they handle the track. I don't find drifting interesting at all, half of the people who do it, do it for fun and aren't really good at it, and some people dedicate their lives to it and have shitbag cars and shitty finances but have street cred.

to each his own, if the guy wants to build a nice car and park it somewhere whats the big deal. I hard park my shit ALL day and nobody talks shit to me??? (not trying to sound cool) I'm just saying.

Don't be so "ZILVIAN" to say someone hard parks their car period. The shit is gay.

irax
09-16-2010, 04:56 AM
Ughhh,

This car pisses me off. He always rolls up to a show, parks it, and hits the air jacks. Hard "lifted" parking I guess.

fuck you i would do that shit going to the gas station or grocery store! that is fucking HAWT! park it and run a chain through the wheels LOL!

yokotas13
09-16-2010, 05:14 AM
hell yeah, id do the same damn thing too.
and imagine at the track, no more jacks
get stuck on a driveway, hit them air jacks and put some boards under hte wheels

fuck you guys for talking shit lol

bb4_96
09-16-2010, 06:05 AM
I'm under the impression an air jack is a pneu cylinder? Thats $800? Maybe my company has been been buying crappy actuators all these years lol. Here's an Idea. How about adjusting pistion surface area so it can operate on perhaps... less than 200psi. However I kinda like the Idea of servo operated scissor jacks.

If you had a 2500lb track car and pneumatic cylinder on each corner placed as to distribute the weight evenly, each cylinder would be loaded with 625lbs. 625lb across a 12.6in^2 surface area(4in dia cylinder) is almost 50psi. However if you used a 2in dia cyl you would need about 200psi. It would just take a larger volume of air to fill the larger diameter cylinders if they had the same stroke length as the shorter ones. If you went to 3 jacks like the S2k you'd have to distribute the car's weight over 3 part = over 800lb per corner = more air pressure. So use more or larger diameter cylinders and lower pressure requirements.

240sx123$
09-16-2010, 06:38 AM
I use a scissor jack that has a bolt on the end instead of some goofy lever/handle setup. Its a 19mm, same as my lug nuts. I think its a stock scissor jack out of an eclipse or something. I put it under the car, and hit it with the impact. VRRRRRTTTT, lifts the car in 2 seconds.

Kinda like this, but I have to use a socket, whereas the impact plugs right into this one.

http://www.northerntool.com/images/product/images/144870_lg.jpg
Although my low-pro floor jack from pepboys (120 bones) is just as effective, and lifts the car in like 5 pumps

bllabong89
09-16-2010, 06:44 AM
Ksport has pneumatic air lifts for 319 ea.
Ksport Pneumatic Air Jack [ AJ0001 ] - Enjuku Racing - Performance Parts and High Quality Fabrication (http://www.enjukuracing.com/ksport-pneumatic-jack-p-7704.html)
Obviously at 1200lb load it is a little excessive and you could find some in say, Northern Tool co. catalog or wherever he^^^^^ works...for cheaper most likely. Then you just need a compressor system.

I have seen alot of systems that bolt/mount onto the front tubes of the cage on the inside and go thru the floor board.

You could also try what Full Race did on their R14 AWD S14
http://i983.photobucket.com/albums/ae319/ahill-miconcepts/jackpoints.jpg

http://i983.photobucket.com/albums/ae319/ahill-miconcepts/jackpoints2.jpg

http://i983.photobucket.com/albums/ae319/ahill-miconcepts/jackpoints3.jpg

nathanong87
09-16-2010, 06:57 AM
Ughhh,

This car pisses me off. He always rolls up to a show, parks it, and hits the air jacks. Hard "lifted" parking I guess.

lol who gives a shit. i'd go to a mcdonalds drive through and hit my air jacks if i had em. you know how hard it is to reach the food window on a lowered s14?

conrad_s13.5
09-16-2010, 07:27 AM
http://i983.photobucket.com/albums/ae319/ahill-miconcepts/jackpoints.jpg

http://i983.photobucket.com/albums/ae319/ahill-miconcepts/jackpoints3.jpg
just somethin' like this would be perfect. my problem is fitting the jack under far enough to reach a jacking point
this is where its at!

nathanong87
09-16-2010, 07:35 AM
I use a scissor jack that has a bolt on the end instead of some goofy lever/handle setup. Its a 19mm, same as my lug nuts. I think its a stock scissor jack out of an eclipse or something. I put it under the car, and hit it with the impact. VRRRRRTTTT, lifts the car in 2 seconds.


best advice in the thread so far.

posi rep for impact gun sound too.

S14DB
09-16-2010, 07:45 AM
nooooooooo, you need like 200psi for airjacks to work correctly, local shop hosted dean kearney the week before Formula D Wall, and their system was at 165psi and it wouldnt even jack his car up halfway.

At the track they have a HPA or Nitrogen tank to jack it up. They don't use a shop compressor.

murda-c
09-16-2010, 08:09 AM
At the track they have a HPA or Nitrogen tank to jack it up. They don't use a shop compressor.

yeah i was gonna say why not use a scuba tank.

NightShiftShadow
09-16-2010, 10:54 AM
Ksport USA - Performance Suspension (http://www.ksportusa.com/asp/pneumatic_detail.asp?product_id=pa01)

S14DB
09-16-2010, 11:24 AM
Ksport USA - Performance Suspension (http://www.ksportusa.com/asp/pneumatic_detail.asp?product_id=pa01)

Wow, looks oddly familiar...
CP3985 - Light Weight Fast Aluminium Air Jacks - CP3985 Range (http://www.apracing.com/info/products.asp?product=CP3985+-+Light+Weight+Fast+Aluminium+Air+Jacks+-CP3985+Range_2568_1116)

!Zar!
09-16-2010, 12:53 PM
This all seems like WAYYYYY too much work at trying to reinvent the wheel.

Two pieces of wood staggered, angle wheel and drive up the wood, jack up car.

Why over-complicate that?

ayuaddict
09-16-2010, 01:00 PM
air jacks are awesome, i want some.

slideways2004
09-16-2010, 04:50 PM
air jacks are awesome, i want some.

yea. But I was thinking, most of the time the rear isnt had to jack up if you have a decent jack. I always have problems with the front becuase I hate driving the car on blocks. THe front and sides are so low that it sucks lifting it up

worangejuice
09-16-2010, 05:00 PM
I always thought the jacking point/holes for the bmw e36 was mildly convenient :shrug:
http://www.pelicanparts.com/bmw/techarticles/E36-Jacking_Up/pic8.jpg

duffman1278
09-16-2010, 05:09 PM
Just cut my stock integra's scissor jack, and welded up a 19mm nut. Literally took me no more than 20 min.

Works like a charm too.

Edit: NISSAN scissor jack

http://i5.photobucket.com/albums/y178/duffman1278/DSC_8622.jpg

http://i5.photobucket.com/albums/y178/duffman1278/DSC_8623.jpg

Touge_Monster
09-16-2010, 05:19 PM
^^^That is an awesome idea. I need to do that

japslapsilvia
09-16-2010, 06:20 PM
Just cut my stock integra's scissor jack, and welded up a 19mm nut. Literally took me no more than 20 min.

Works like a charm too.

http://i5.photobucket.com/albums/y178/duffman1278/DSC_8622.jpg

http://i5.photobucket.com/albums/y178/duffman1278/DSC_8623.jpg

i didnt know nissan jacks came in integras.....

!Zar!
09-16-2010, 06:25 PM
I certainly do not trust those scissor jacks.

duffman1278
09-16-2010, 06:26 PM
Whatever!! I have 2 scissor jacks, one from a nissan and one from an integra. get off my nuts about it lol type oh.

Om1kron
09-16-2010, 06:31 PM
Whatever!! I have 2 scissor jacks, one from a nissan and one from an integra. get off my nuts about it lol type oh.

Whats funny is the newer altima's tire jack comes factory with a nut at the end instead of the stupid ass captain hook holes.

msanchez
09-17-2010, 09:35 AM
Whats funny is the newer altima's tire jack comes factory with a nut at the end instead of the stupid ass captain hook holes.

I dont care. That goes for everyone, not just picking on Om1kron.
This thread is for suggestions on a TRUNK INTEGRATED JACK.
Lets hear some more.

!Zar!
09-17-2010, 12:59 PM
Is your car so complete and pretty that you need to worry about some fancy ass jack trunk shit?

To me it seems like wasted priorities.

BustedS13
09-18-2010, 01:19 AM
I use a scissor jack that has a bolt on the end instead of some goofy lever/handle setup. Its a 19mm, same as my lug nuts. I think its a stock scissor jack out of an eclipse or something. I put it under the car, and hit it with the impact. VRRRRRTTTT, lifts the car in 2 seconds.

Kinda like this, but I have to use a socket, whereas the impact plugs right into this one.

http://www.northerntool.com/images/product/images/144870_lg.jpg
Although my low-pro floor jack from pepboys (120 bones) is just as effective, and lifts the car in like 5 pumps

same thing, i have two scissor jacks with acorn lug nuts welded onto the ends. air ratchet gets cars up nice and quick. (edit: just like post #38, doh!) it's interesting that there's a scissor jack in a trunk at the junkyard somewhere already set up like that, though.

S14DB
09-18-2010, 09:23 AM
Could always get the electric model.

http://www.redferret.net/Images/electriccarjack_small.jpg
http://image.made-in-china.com/2f0j00wvNTRFbKyYoy/Electric-Scissors-Jack-EJ-1-.jpg

!Zar!
09-18-2010, 11:01 AM
If you all are going to use those scissor jacks, at least weld a bigger base plate to the bottom. I guess it is the foot print of those jacks that kills me.

BustedS13
09-18-2010, 11:55 AM
Could always get the electric model.

http://www.redferret.net/Images/electriccarjack_small.jpg
http://image.made-in-china.com/2f0j00wvNTRFbKyYoy/Electric-Scissors-Jack-EJ-1-.jpg

i've always been curious about these, does anybody have firsthand experience? it even has a car adapter.

msanchez
09-18-2010, 12:03 PM
Ya that's the one I bought. I cut off the crappy connectors, wired it straight to the battery and used a three point switch. I'll post pics when I get it mounted.

RurouniMidnight
09-18-2010, 04:31 PM
Yeah buddy of mine just got 4 of the k sport air jacks and is going to run lines to a 15lb nitrogen tank with switch to activate them should be really sweet but $$$$, i like the scissor jack idea with the nut welded on.

I hate having to always use a screwdriver to turn the weird ass "captain hook handle" on the scissor jack, takes years.

S14DB
09-19-2010, 03:39 AM
If you all are going to use those scissor jacks, at least weld a bigger base plate to the bottom. I guess it is the foot print of those jacks that kills me.Yeah, I have had one side on my while jacking up on the side of the road. It was not a fun experience.

I like the bear claws on the electric models.

i've always been curious about these, does anybody have firsthand experience? it even has a car adapter.

There are videos on youtube and they are pretty fast. I would be interested in peoples long term experience with them. I wonder how long that motor and Gear reduction last. If the gears are made of plastic or pot metal I see them wearing fast.

nathanong87
09-19-2010, 06:16 AM
I hate having to always use a screwdriver to turn the weird ass "captain hook handle" on the scissor jack, takes years.

haha yea. this is the truth.

Bushido
09-19-2010, 03:43 PM
you guys that use a scissor jack, do you jack it up from the pinch weld?

pretty sure it won't fit under the frame rail...


the electric scissor jack idea sounds cool.

what i'm thinking is, mount the jack inverted to a bar that is bolted down in the trunk.
you could probably use the points that the GT spec trunk bar happens to use...
weld a female threaded end on the jack and use a threaded steel rod to prop the car up.

whatchuthink

ranger240
09-19-2010, 04:31 PM
there's a great FC RX-7 with an integrated rear jack. its cool, all the components fit behind teh factory interior panels. you open a panel in the trunk, pop out a handle and crank away.

a thread on it might be somewhere on zilvia but its way cleaner than any of the other just previously mentioned

articdragon192
09-19-2010, 07:35 PM
http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image9.jpg
http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image10.jpg
http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image12.jpg
http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image13.jpg

nathanong87
09-19-2010, 07:42 PM
^ u win this game

wisDOMination
09-20-2010, 01:37 AM
http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image10.jpg



That looks pretty cool.
I always thought about using a trailer jack. Make an adapter that'll accept 1/2" drive extensions or just weld a nut on, and mount it similar to how this ones mounted. This idea will probably seem pretty retarded to most of you, as it seemed pretty retarded to me as well, but I might go ahead and give it a try and see what happens.

SomeoneWhoIsntMe
09-20-2010, 01:51 AM
How about something like this?

http://imgur.com/daGmJ.jpg

http://imgur.com/m0Rtm.jpg

http://imgur.com/yM8g1.jpg

irax
09-20-2010, 02:27 AM
thats pretty cool and all, but how are you going to JACK up the car with that?

Black R
09-20-2010, 07:10 AM
Like the e36 is my guess.

msanchez
09-20-2010, 09:16 AM
[QUOTE=articdragon192;3646408]http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/50645/Image/Normal/Image9.jpg


This is exactly what i want, can anyone tell me what kind of jack this is? or where i can get it?

msanchez
09-20-2010, 09:24 AM
I wonder how long that motor and Gear reduction last. If the gears are made of plastic or pot metal I see them wearing fast.

I took it apart, and the output shaft, along with the reduction gears are all plastic.
So i scrapped that idea and returned it. ha.

SomeoneWhoIsntMe
09-20-2010, 09:37 AM
thats pretty cool and all, but how are you going to JACK up the car with that?the BMW E36 style jacking plates as pictured previously? you'd be able to have the skirt as low as you want and still be able to lift the car with a floor jack

thefro526
09-20-2010, 09:47 AM
I'm pretty sure I've seen someone weld in a tube behind their licence plate that accepted a metal pad that they used to jack on. That's probably what I would do if I ever did some sort of custom jacking thing. I'll see if I can find pictures of it.

articdragon192
09-20-2010, 10:04 AM
This is exactly what i want, can anyone tell me what kind of jack this is? or where i can get it?

SuperNow has a pretty sick one for the FC. Luckily for me, my took hooks are easily accessible from the rear, haha

RHDJapan has them for the FC.

msanchez
09-20-2010, 11:28 AM
RHDJapan has them for the FC.

Thats super legit.. Although id rather just get that jack itself and make my own brackets for an s chassis, itd be cheaper. I googled hydraulic scissor jack, and it yeilded pumps just like that. what i dont understand, is how does it push the rod down without moving the whole lower half of the jack? (pump, lower scissor arms etc)

Edit: after looking at it for a while, it looks like it does require the whole bottom half of the jack to move up and down with the push rod.