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Weight of Rear Sub Frame Assembly
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Author:  Rodd [ Thu Nov 02, 2006 7:17 pm ]
Post subject:  Weight of Rear Sub Frame Assembly
Does anyone know how much the rear sub frame assembly weighs in a Clubman Sedan :?:

Thanks in advance
Rodd
Author:  simon k [ Thu Nov 02, 2006 8:15 pm ]
Post subject: 
how much of it?

just the subframe?
subframe and radius arms?
subframe, radius arms and brakes?

curiosity got the better of me and I went outside with the bathroom scales and I weighed a complete subframe (brakes, shockers and everything) it was bang on 45kg
Author:  Morris 1100 [ Thu Nov 02, 2006 8:18 pm ]
Post subject: 
skssgn wrote:
curiosity got the better of me and I went outside with the bathroom scales and I weighed a complete subframe (brakes, shockers and everything) it was bang on 45kg
Wet or Dry?
Author:  simon k [ Thu Nov 02, 2006 8:20 pm ]
Post subject: 
Morris 1100 wrote:
skssgn wrote:
curiosity got the better of me and I went outside with the bathroom scales and I weighed a complete subframe (brakes, shockers and everything) it was bang on 45kg
Wet or Dry?


well it was raining, but the subframe was dry, even though it was wet
Author:  Morris 1100 [ Thu Nov 02, 2006 8:22 pm ]
Post subject: 
You know what I mean even if I don't know what you mean. :twisted:

A hydro frame will be heavier if it includes the bags. (obviously!) I mean it is heavier than a rubber frame.
Author:  9YaTaH [ Thu Nov 02, 2006 8:25 pm ]
Post subject:  Huh?
I undermean exactly what you both stand to say :roll:
Author:  simon k [ Thu Nov 02, 2006 8:57 pm ]
Post subject: 
Morris 1100 wrote:
You know what I mean even if I don't know what you mean. :twisted:


ohhhh, welllllll, it was dry before it got wet, but once it was wet, it was still dry, even though I was getting wet
Author:  aaron [ Thu Nov 02, 2006 9:06 pm ]
Post subject: 
Rodd if you need to know exactly, come up to my place on saturday morning with some scales. You can weigh it your self. I have both complete and incomplete sitting here. Well the complete is going to a new home on saturday but if you get in quick you can weight it.

Cheers
Aaron
Author:  Rodd [ Fri Nov 03, 2006 6:12 am ]
Post subject: 
Thanks guys, I just needed an approximate weight as I am building a trailer, just weighing up my options, so to speak, whether to go sub frame or trailer axle, springs etc. It appears the weight difference is minimal, so my next question is:

Aaron, your incomplete subframe, how incomplete is it and is it for sale? As I eventually want a complete rubber cone rear subframe, I will post this question on Wanted.

Thanks
Rodd
Author:  simon k [ Fri Nov 03, 2006 8:33 am ]
Post subject: 
did you happen to see my little trailer at MDU?

it's based on a dry subframe, and I am really happy with it (also only cost me $50 so that's a good thing).... I had to pull it out of a paddock and get rid of the multitude of redbacks myself

a couple of observations with it that may be interesting to you

the dry subframe that is in it does not have any telescopic dampers, so it bounces like crazy... I assume the dampers aren't there because they would intrude on the load bay. I don't know if I'll be able to add some as there just isn't any room.... the other problem with no shockers is that there is nothing to stop the radius arms falling all the way down, and the rubber cones pull out of their keepers, as do the knuckle joints - not a good thing!

my trailer has the bed bolted to the subframe using the standard subframe mounting points, it's not welded on, so I'm planning on separating them and working on the subframe

unless I fit HiLo's, the dry subframe does not have any ride height adjustment - being a trailer, I like to load it up with stuff, and too much stuff makes the wheels scrub on the guards (I need to reshape the guards as they're too narrow anyway)

I am seriously considering converting the trailer to use hydro suspension - I could quite easily make it height adjustable with a built-in pump and reservoir - the benefit of hydro is that dampers aren't required, only some form of strap or spring to stop the wheels going down too far, though I'm sure the load capacity before the bags burst will be an issue

it's still loaded up with my stuff from MDU, when I get myself sorted out I'm going to strip the whole thing and repaint it - maybe with a change of subframe, maybe not - I'm more than happy to take measurements, pictures, whatever - the bloke who built it is a very detailed engineer, it's hard to fault the design or construction!

couple of pictures if you missed it ;) (thanks Mick and Duc)

Image
Image

[EDIT] I'm thinking about hooking up the handbrakes on the subframe :D the backing plates aren't there now, but I've got plenty of that kind of junk :D

also, my weight of 45kg is what you're after, mounted in a trailer, you might take 5kg out of that - apologies for being silly with Morris 1100, but that happens with me sometimes :roll:
Author:  cush [ Fri Nov 03, 2006 8:38 am ]
Post subject: 
skssgn wrote:
Morris 1100 wrote:
Wet or Dry?

well it was raining

:lol:
Author:  Morris 1100 [ Fri Nov 03, 2006 3:29 pm ]
Post subject: 
I had a car trailer that had a mini rear subframe under it. The frame had been cut in the middle and widened to suit a car trailer. (It was a trailer for a Formula Vee) It was hopeless! It did have shocks though!
I would have made the trailer with mounts for the trailing arms and spring mounts and not use a subframe at all. :wink:

Simon, instead of telescopic shocks why not try some lever arm shocks off a Minor? (F1 Ferraris use lever arm shocks :shock: )
Author:  Rodd [ Fri Nov 03, 2006 5:55 pm ]
Post subject: 
Thanks heaps for the info Simon, it all helps the project, and yes I did see your trailer at MDU. You may remember you gave me a lift from the Club to the Pavillion on the Saturday night of MDU, and I bought the air filter housing and headlight of you on the Sunday. The trailer we are building is the back end of a Mini not a useful trailer like yours.
Will keep you posted on the project.
Once again thanks.
Rodd
Author:  simon k [ Fri Nov 03, 2006 7:42 pm ]
Post subject: 
Rodd wrote:
Thanks heaps for the info Simon, it all helps the project, and yes I did see your trailer at MDU. You may remember you gave me a lift from the Club to the Pavillion on the Saturday night of MDU, and I bought the air filter housing and headlight of you on the Sunday. The trailer we are building is the back end of a Mini not a useful trailer like yours.
Will keep you posted on the project.
Once again thanks.
Rodd


I do remember you Rodd! you helped me keep my sanity!! (or what small part remained of it)

for a mini back-end trailer, I'd definitely keep the subframe, not worth screwing around with springs when the whole lot is already made to fit....
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