oadamo
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| posted on 21/5/07 at 06:01 PM |
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diff mount
hi ive mounted my diff in this plate ive made at work its all 3mm do you think it will be ok when its welded to the bottom of my track car.or do you
think it will bend
adam
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DIY Si
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| posted on 21/5/07 at 06:06 PM |
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IMO it will flex, but as to wether that's a problem or not I couldn't say. If there was a brace/cross bar between the front two longer
bits that'd make it much stiffer.
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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flange nut
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| posted on 21/5/07 at 06:45 PM |
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Not sure how it's going to mount in your car but IMO its going to bend. I agree a cross bar would help and weld another strip at 90 degrees onto
the existing ones.
Geoff
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BenB
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| posted on 21/5/07 at 06:53 PM |
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It'll bend when you give it the beans... 
So unless you're going to be very gentle with this new car I'd re-inforce it....
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goodall
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| posted on 21/5/07 at 06:59 PM |
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will it be welded to the floor pan of the car? if so it mite do
would be better if the mount points were made of thicker steel or preferably if they were angle or channel, as for the base plate if its fully welded
to the car would be fine as is probably but id personally want to add some diagonal strips on the plate between the brackets to prevent twist and
maybe add a few bolts as well in middle or weld to stop the middle area lifting and stretching away from the floor pan
[Edited on 21/5/07 by goodall]
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ReMan
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| posted on 21/5/07 at 07:02 PM |
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Surely it will bend? The twisting forces as you hit the gas in first will fold the long arm I would have thought?
Are you mounting the diff upside down or hanging this plate under the floor?
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britishtrident
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| posted on 21/5/07 at 07:11 PM |
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Look at the way MK, GTS and other do it much simpler all loads carried in sheer .
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oadamo
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| posted on 21/5/07 at 07:32 PM |
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ive just offered it up to the bottom of the car to see what its like.do you rekon it would be ok if i put some braces to the long arms off the boot
floor. the floor seems very thin i think i might have to run some box section across it
adam
[Edited on 21/5/07 by oadamo]
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worX
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| posted on 21/5/07 at 08:35 PM |
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weld a piece of angle joining the two (four altogether) vertical brackets together, that way (at least) both of those will be suppirted and as they
should be in conflict with each other in a twisting sense that should in theory be like a double reinforcement(?)
also I would use angle instead of flat so that it imposed a certain amount of 90degree force into your bracket in general!
Steve
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ReMan
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| posted on 21/5/07 at 08:35 PM |
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This sort of thing mkight help, obviously the long straps are the real problem, the short ones less so, but still think it may needd more suport if
your going to be giving it large
 
Rescued attachment PISS.jpg
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DIY Si
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| posted on 21/5/07 at 09:08 PM |
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If you make the front arms out of 3mm x 25mm angle you'll get rid of most of the twist. Then add a X brace of flat strip across the forward
facing edge and it should be ok.
And yes, you're right about the boot floor. Being a saxo it was never designed to take any real force, so a few bits of box from the outer sills
and so on to create a frame wikll go a long way towards not twisting the rear end.
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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goodall
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| posted on 21/5/07 at 10:02 PM |
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just out of interest adam how are the de dion mounts going to be connected to the car? as you will probably have to make a bit of frame work on the
car to take up the force from it as well and this frame work could be used to also mount the diff, just like a sub frame
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oadamo
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| posted on 21/5/07 at 10:23 PM |
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ive made some box things like on the 4 link kits for the mk2 escorts. but i havent made the arms yet to fitting them. iam still waiting for the bushes
do arrive then i can make the arms to suit the size of the bushes. iam still learning and sort of making it as i go along lol.the problem i have is
trying to get it all to fit without cutting half of the car away
adam
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goodall
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| posted on 21/5/07 at 10:34 PM |
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yes i understand how it could be very difficult fitting all that in there, my dad and me often think of converting are audi gt in to a quattro and it
would require us cut the whole transmission tunnel and rear floor out so i can see all the complications you must face
i think your biggest concern would be spreading the load onto the body well enough to prevent the body cracking at the pick up points for the axle and
the diff and the welding on the diff mount you have made looks superb
looken good so far cant wait to see the pics of her when you finish 
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Peteff
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| posted on 21/5/07 at 10:45 PM |
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Weld a piece of box between the front two and some angle to the sides of the two side ones and drill through the original holes. Bolt it up to the
boot floor with a couple of 5mm spreader plates between the bolts to sandwich the floor
 
Rescued attachment P1010186.jpg
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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