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Chassis Extension & 4 Link Truss - Pics - Now coil mount
Posted: Sat Apr 22, 2006 3:29 pm
by bubs
Chassis Extension
Here is some pictures of a "Chassis Extension" after having about 800mm removed to start with. I dont have any pictures of how it started out, but basicly it was cut and boxed in with 8mm plate at the cut. Originally it was to have tube from there back, but not any more.
Picture one, showing inside the c-section.
Here is an overall completed shot
Close up on an angle
Side shot showing cover plate with fish plate built in

Posted: Sat Apr 22, 2006 3:32 pm
by bubs
Posted: Sat Apr 22, 2006 8:00 pm
by 4x4Monkey
wats the benifits of 4 links- in general
ive heard many people talkng about em but i dont know anything about em
Posted: Sat Apr 22, 2006 9:05 pm
by lay80n
Four link (triangulated in this case) allows much better articulation, also moves only in a vertical plane, unlike panhard rod equpied vehicles, that also move in a horizontal plane, pushing the axle sideways on articulation. Tri 4 link also allows easy tube of rear, as only shock mounts need to be made, no panhard mount etc.
Layto....
Posted: Sat Apr 22, 2006 10:42 pm
by antt
looking good as always buddy, damn you must be busy lately
Posted: Sun Apr 23, 2006 7:51 am
by 4x4Monkey
Whats the legal side of things for on road, does it need a engineering cert ?
Posted: Sun Apr 23, 2006 12:00 pm
by bru21
chassis mods like this can only be done if further than 200mm away from a suspension pick up point. thus this will not be engineerable as a chassis modification alone.
looking good mate, why hand cut - not like you!
Posted: Sun Apr 23, 2006 2:01 pm
by GRIMACE
wat amount of link seperation (both horizontally and vertically) at the diff & chassis are you looking to run and with wat size tyres???
Looks pretty good buddy

Posted: Sun Apr 23, 2006 3:19 pm
by mickyd555
bru21 wrote:chassis mods like this can only be done if further than 200mm away from a suspension pick up point. thus this will not be engineerable as a chassis modification alone.
looking good mate, why hand cut - not like you!
where did you get that info from, only asking because when i spoke to the engineer about chopping mine he had no problems at all. I was talking about cutting it only about 200mm behind the spring perch??

Posted: Sun Apr 23, 2006 4:48 pm
by midnight
AnthonyP wrote:wat amount of link seperation (both horizontally and vertically) at the diff & chassis are you looking to run and with wat size tyres???
Looks pretty good buddy

Isnt this your car Anthony?
Maybe you should go see it one day

Posted: Mon Apr 24, 2006 9:18 am
by GRIMACE
mickyd555 wrote:bru21 wrote:chassis mods like this can only be done if further than 200mm away from a suspension pick up point. thus this will not be engineerable as a chassis modification alone.
looking good mate, why hand cut - not like you!
where did you get that info from, only asking because when i spoke to the engineer about chopping mine he had no problems at all. I was talking about cutting it only about 200mm behind the spring perch??

well then thats ok cause its 200mm away from the suspension pick up point...
Posted: Mon Apr 24, 2006 10:06 am
by bru21
AnthonyP wrote:mickyd555 wrote:bru21 wrote:chassis mods like this can only be done if further than 200mm away from a suspension pick up point. thus this will not be engineerable as a chassis modification alone.
looking good mate, why hand cut - not like you!
where did you get that info from, only asking because when i spoke to the engineer about chopping mine he had no problems at all. I was talking about cutting it only about 200mm behind the spring perch??

well then thats ok cause its 200mm away from the suspension pick up point...
you have done well!
I asked the engineer (grahm leslie)when he was over doing an inspection on our lotus 7 replica.
Posted: Mon Apr 24, 2006 11:44 am
by Mad Cruiser
midnight wrote:AnthonyP wrote:wat amount of link seperation (both horizontally and vertically) at the diff & chassis are you looking to run and with wat size tyres???
Looks pretty good buddy

Isnt this your car Anthony?
Maybe you should go see it one day

What an ugly POS
Not bubs !
Posted: Mon Apr 24, 2006 12:33 pm
by mickyd555
bru21 wrote:AnthonyP wrote:mickyd555 wrote:bru21 wrote:chassis mods like this can only be done if further than 200mm away from a suspension pick up point. thus this will not be engineerable as a chassis modification alone.
looking good mate, why hand cut - not like you!
where did you get that info from, only asking because when i spoke to the engineer about chopping mine he had no problems at all. I was talking about cutting it only about 200mm behind the spring perch??

well then thats ok cause its 200mm away from the suspension pick up point...
sorry, i probably didnt explain it well. I knew what i was talking about......
once it cut 200mm away from the coils it will have a peice of 100x100 welded in and that will bring the welds to within 100mm of the coiil hat.
you have done well!
I asked the engineer (grahm leslie)when he was over doing an inspection on our lotus 7 replica.
Posted: Tue Apr 25, 2006 6:53 pm
by bubs
Here are some new pics, the axle is squared under the rig and the coil mounts on the chassis and axle have been added.

Overall Shot A

Overall Shot B

Diff coil mount, the slots are for tieing the coil in.

Chassis mount, same prinicple as the axle mount.
Posted: Wed Apr 26, 2006 9:44 am
by GRIMACE
Posted: Wed Apr 26, 2006 11:23 am
by Mad Cruiser
Somebody can't spell your name

Posted: Wed Apr 26, 2006 4:17 pm
by redzook
may have mist it but why are the coils off the back of the diff?
Posted: Wed Apr 26, 2006 4:21 pm
by GRIMACE
redzook wrote:may have mist it but why the coild off the back of the diff?
good question

Posted: Wed Apr 26, 2006 4:37 pm
by "CANADA"
AnthonyP wrote:redzook wrote:may have mist it but why the coild off the back of the diff?
good question

keeping it lower? keeping the spring out of the tires path at max artic...would be putting huge stress on the bushs wouldnt it?
Posted: Wed Apr 26, 2006 4:40 pm
by redzook
MADZUKI wrote:AnthonyP wrote:redzook wrote:may have mist it but why the coild off the back of the diff?
good question

keeping it lower? keeping the spring out of the tires path at max artic...would be putting huge stress on the bushs wouldnt it?
he could have just lifted the top mounts higher on the chassis?
Posted: Wed Apr 26, 2006 4:48 pm
by lay80n
Seems strange, as it puts large loads on the welds joining the spring plates to the axle tube. Large leverage is being applied compared to mounting hte spring plate dirrectly about the axle tube.
Layto....
Posted: Wed Apr 26, 2006 5:24 pm
by Dee
if i was to guess looking at that photo id say its because he would have to relocate his lower arm mounts, probably to the underside of the axle.. (the topside of the lower arms would probably hit on the underside of the spring plate upon suspension droop if the arm mounts stayed where they are with the coil mounts above)
Wanted to keep underside of axle free of stuff to get hung up on? And theres probably a reason he couldnt go wider with the lower arms, (chassis width?) instead of having to go under.
Also with leverage of springs on those plates, i think that is why he added the 90 deg returns on either side.
But yes, that was the first thing that came to my mind when i saw them at the back like that too...
Posted: Wed Apr 26, 2006 5:47 pm
by bubs
Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Posted: Wed Apr 26, 2006 5:54 pm
by redzook
bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

i wasnt questioning strength
i think the others just jumped on that band wagon tho
was just curious why u done it that way that was all
ps i run mine off the front of the diff

(Space reasons)
Posted: Wed Apr 26, 2006 7:22 pm
by lay80n
bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Just wondering, not meant to offend.
Layto....
Posted: Wed Apr 26, 2006 8:13 pm
by RUFF
bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Just because i did it that way doesnt mean its a good idea

Posted: Wed Apr 26, 2006 10:10 pm
by bubs
RUFF wrote:bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Just because i did it that way doesnt mean its a good idea

I only said that because you are considered to be god like or somin

Posted: Thu Apr 27, 2006 8:08 am
by GRIMACE
bubs wrote:RUFF wrote:bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Just because i did it that way doesnt mean its a good idea

I only said that because you are considered to be god like or somin

tehehehe
I also beleive it makes for a slightly better feel when climbin steep grades. Could be all crap thou

Posted: Thu Apr 27, 2006 1:24 pm
by dave
RUFF wrote:bubs wrote:Reason was to try and keep it a little lower.
Are you all going to feel better if i show a pic of Ruffs Hilux with them mounted to the backside of the axle

Just because i did it that way doesnt mean its a good idea

WE ALL KNOW THAT!!!
