Board logo

Mini beam axle options
DarrenW - 17/8/09 at 06:02 PM

I know this isnt a mini forum, but i havent yet found a specific forum where there is the same locost ethos and inginuity as on here.

Ive took rear subframe out. Looks rather big and bulky considerings its main purpose. I was wondering if it can be seriously cut down just leaving the radius mounting points and coil overs fitted instead of the dry cone units? Obviously will need some strengthening etc.

If this is not possible (and id love to know why), is it possible to make a diy beam axle? Has anyone seen any plans?

thanks in advance,
Darren


kj - 17/8/09 at 06:06 PM

if you look on e-bay, a guy has a soilid beams for sale now and again about £110.
Looking at them its just 1" box section, i have been told that getting the set up takes a while and some times they tend to fish tale, but if you can do a locost then it should be ok.


blakep82 - 17/8/09 at 06:07 PM

not seen any plans or anything, but mini spares centre (?) used to sell them when i had a mini. no reason why it couldn't be done, but i wouldn't cut down a proper sub frame to do it


blakep82 - 17/8/09 at 06:10 PM

quote:
Originally posted by kj
if you look on e-bay, a guy has a soilid beams for sale now and again about £110.
Looking at them its just 1" box section, i have been told that getting the set up takes a while and some times they tend to fish tale, but if you can do a locost then it should be ok.


i reckon 1" box is WAYYYYYY too small

have a look at this though
https://www.plminishop.com/product-CK22.html

not a bad price either i reckon


edit, just seen a axle made of 1" box, i really wouldn't be keen on one like that

[Edited on 17/8/09 by blakep82]


Jimbob - 17/8/09 at 06:16 PM

Some coilovers need inner arch mods as they dont quite fit even with the offset mounting.

Not 100% which ones but its something to watch out for


r1bob - 17/8/09 at 06:19 PM

yes it can be done,and as been done lot's, intended to do it to my subframe but it was to rusty so bought a jonspeed beam axle instead,


MikeRJ - 17/8/09 at 06:19 PM

Don't forget the rear subframe adds a significant structure between you and the car behind. A shunt from behind with one of those beam axles and the rear end would fold up like a newspaper. Not such a problem if you have a cage fitted perhaps, but for road use I'd leave the standard subframe in place personally.


r1bob - 17/8/09 at 06:24 PM

you can get offset coil overs from GAZ these wil fit standard arch but you have to tap the flanges out inside the top of the arch were the top of shock goe's,, easy peasy job


DarrenW - 17/8/09 at 06:26 PM

quote:
Originally posted by MikeRJ
Don't forget the rear subframe adds a significant structure between you and the car behind. A shunt from behind with one of those beam axles and the rear end would fold up like a newspaper. Not such a problem if you have a cage fitted perhaps, but for road use I'd leave the standard subframe in place personally.



mmmmmm - very good point well made. Considering thats where the kids would be sitting - nuff said.


andy o - 17/8/09 at 06:39 PM

you need the david vizard book
how to modify a mini.it will show you all you need to know


kj - 18/8/09 at 07:01 AM

Hi Darren,

You could also try this site.

http://www.theminiforum.co.uk

They have links to z cars and loads of others


coozer - 18/8/09 at 09:51 AM

Been over to Green & White mate? Last time I looked they had a very light space frame Mini with a very small rear beam. May be worth asking Ian over there.

Steve


DarrenW - 18/8/09 at 04:57 PM

quote:
Originally posted by coozer
Been over to Green & White mate? Last time I looked they had a very light space frame Mini with a very small rear beam. May be worth asking Ian over there.

Steve


I was across there yesterday. it was probs seeing the racer's coil overs that got me thinking when i got home. Didnt take a close look though.
It was nice to see they are still there, i used them 20 years ago when i had my first ever car / mini. Still in the exact same building sporting the exact same decor. Time warp of a place ran by true enthusiasts with what seems to be hundreds of years experience. A bit of a gem by all accounts.