Gas Tank lift & clearance
#1
Registered User
Thread Starter
Join Date: Jul 2009
Location: Tucson, Arizona
Posts: 222
Likes: 0
Received 0 Likes
on
0 Posts
Gas Tank lift & clearance
I want to raise my gas tank up from the stock position on my 1991 4runner. I have a 2" lift and woud lift to gain more clearance without replacing the stock gas tank. Also does anyone have a link about raising the bulking crossmember under the transfer case or a less bulky (yet still strong) replacement for it
Thx
Thx
#2
Contributing Member
iTrader: (3)
Not as easy on a 2nd gen, at least if you plan to retain the rear coil suspension:
- http://www.4crawler.com/4x4/CheapTri....shtml#GasTank
Here is an option for raising the gas tank on a 2nd gen 4Runner that avoids the rear suspension brackets:
- http://www.4x4wire.com/toyota/tech/gas_tank/
And lots of t-case cross member options:
- http://www.4crawler.com/4x4/ForSale/...l#TcaseXmember
- http://www.4crawler.com/4x4/CheapTri....shtml#GasTank
Here is an option for raising the gas tank on a 2nd gen 4Runner that avoids the rear suspension brackets:
- http://www.4x4wire.com/toyota/tech/gas_tank/
And lots of t-case cross member options:
- http://www.4crawler.com/4x4/ForSale/...l#TcaseXmember
Last edited by 4Crawler; 09-03-2009 at 11:33 AM.
#4
Registered User
Thread Starter
Join Date: Jul 2009
Location: Tucson, Arizona
Posts: 222
Likes: 0
Received 0 Likes
on
0 Posts
Prtty bad cause the trails out here are prrty rock filled. I think ima go with the crossmember from budbuilt
http://www.budbuilt.com/new/dual_cross_members.html
Unless i can find one for a cheaper price, but i like the design of the budbuilt.
Another question was that in the 1st gen 4runner there is a aux mounting point for the gas tank. what do u guys think about if I were to mount the gas tank on the top of the hoarse collar instead of it being on the inside of it.
http://www.budbuilt.com/new/dual_cross_members.html
Unless i can find one for a cheaper price, but i like the design of the budbuilt.
Another question was that in the 1st gen 4runner there is a aux mounting point for the gas tank. what do u guys think about if I were to mount the gas tank on the top of the hoarse collar instead of it being on the inside of it.
#5
Registered User
Thread Starter
Join Date: Jul 2009
Location: Tucson, Arizona
Posts: 222
Likes: 0
Received 0 Likes
on
0 Posts
Or there is also the cross member from 4x
http://www.4xinnovations.com/pages/d...ossmembers.htm
Except i wold still like a skid plate on the bottom of that one.
http://www.4xinnovations.com/pages/d...ossmembers.htm
Except i wold still like a skid plate on the bottom of that one.
Trending Topics
#9
Registered User
Join Date: May 2009
Location: Tucson, AZ
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
A Tucsonan! I'm also interested in way of getting it up and out of the way, but i'm gonna wait until I have another DD. AxelIkes build thread is aweosme if your curious.
#11
Contributing Member
Meh, I'll get the skid there eventually. The plasma will certainly make that easier.
I'm also putting in more fuel pickups (snow mobile) in the tank, as well as redoing the high pressure side with SS flex line and -6AN.
I'm also putting in more fuel pickups (snow mobile) in the tank, as well as redoing the high pressure side with SS flex line and -6AN.
#13
Contributing Member
#14
Contributing Member
#16
Contributing Member
On a three link like mine, the roll center is in the middle of the panhard rod.
This thread is a great read, but for a quick, and better explanation, check out post 33:
http://pirate4x4.com/forum/showthrea...re#post1853820
#17
Contributing Member
I think that poster's last sentence says it all ...
Here's an article from a published authority, although, he doesn't quite boil it down as far...
http://www.neohio-scca.org/comp_clin...namics2007.pdf
... and the article I referred to when designing mine ...
http://www.avalancheengineering.com/july2003.htm
I can tell you I dropped my roll center quite a bit and the truck is way more stable now.
Here's an article from a published authority, although, he doesn't quite boil it down as far...
http://www.neohio-scca.org/comp_clin...namics2007.pdf
... and the article I referred to when designing mine ...
http://www.avalancheengineering.com/july2003.htm
I can tell you I dropped my roll center quite a bit and the truck is way more stable now.
#18
Contributing Member
Mine feels very stable with the higher roll center. Think about it using your hands, both facing palm down on top of each other, separated by a few inches.
Imagine a line along the top of your lower hand. Imagine your lower hand is the axle and the upper hand is your body. If you rotate about this imaginary line, you will see that your upper hand (the body) has signifcant side to side motion.
Now, do the same thing, but imagine the line going down the bottom of your upper hand. This would be a high roll centre. As you rotate about that, notice that the body stays MUCH more centered over the axle, and thus is more stable.
Imagine a line along the top of your lower hand. Imagine your lower hand is the axle and the upper hand is your body. If you rotate about this imaginary line, you will see that your upper hand (the body) has signifcant side to side motion.
Now, do the same thing, but imagine the line going down the bottom of your upper hand. This would be a high roll centre. As you rotate about that, notice that the body stays MUCH more centered over the axle, and thus is more stable.
#20
Contributing Member
Also, to keep in mind, a 3 link has a roll center: which is located at a height equal to the midpoint of the panhard rod.
In a 4 link, the interest is more in the roll axis, and keeping it as flat as possible. You've done that by double triangulating the links. Your roll center should be equal to the height of the midpoint of your upper/lower intersections, which is likely higher than mine. But, with the double triangulation, you will have a fairly flat roll axis, which is good.
In a 4 link, the interest is more in the roll axis, and keeping it as flat as possible. You've done that by double triangulating the links. Your roll center should be equal to the height of the midpoint of your upper/lower intersections, which is likely higher than mine. But, with the double triangulation, you will have a fairly flat roll axis, which is good.