3428TM Build Log
Discussion
GAjon said:
This might be a consideration for you Bernard.
This is our Tuscan challenge chassis, in work.
The plates were solid, we’ve put the speed holes in to loose a bit of weight.
I've been thinking about doing that in a few places, but as I don't currently have access to a hydraulic hole punch, as I once did, or a plasma cutter, or a cutting torch, the sheets would be heavier than I'd like. (No Swiss cheese) This is our Tuscan challenge chassis, in work.
The plates were solid, we’ve put the speed holes in to loose a bit of weight.
I've also been considering taco gussets, for a few more challenging places.
Slow M said:
AH! Thanks, will beef mine up in the same way. Do you remember roughly what gauge?
i think it was quite thick , probably an old bit of roll cage or gas pipe !this would have been done in 1995 ish .
i was very surprised at the instant super light stearing , and i realised , the way the wishbone is connected normally , under the shock absorber , means any weight on the shock will push the two halves of the wishbone down , twisting them at both the trunnion end and the chassis end .
this puts a side force on the trunnion and so creates friction .
nice finds :-)
the spindles es well?
I mean sometimes it seem to be hard to find new original ones, although some people made a few sets new for TVR classics in Alu.
but if you can find ready to use from other cars, and upgraded the same time, and say plenty enough parts from those other brands to find, then thats a plus.
the spindles es well?
I mean sometimes it seem to be hard to find new original ones, although some people made a few sets new for TVR classics in Alu.
but if you can find ready to use from other cars, and upgraded the same time, and say plenty enough parts from those other brands to find, then thats a plus.
The front spindles are machined from 1018 steel, with diameters to match the Mazda bearings, but with the taper to fit the Alford & Alder style upright as made by Triumph. The front hubs are factory Mazda Aluminum units, so are those finned Aluminum calipers and vented rotors.
Edited by Slow M on Thursday 9th November 18:07
With the ideas around adding in additional chassis tubes, what is your objective for doing this?
When I rebuilt my chassis I found both top rails had cracked behind the engine mounts. I believe this was due to the twisting torque of the engine, so I added a stay bar from the top rail to the bell housing to spread the load then inserted & welded smaller diameter tubes inside the top tubes to strengthen them.
I'd be interested to know peoples thoughts on how forces from hard cornering act on the chassis.
Moto
When I rebuilt my chassis I found both top rails had cracked behind the engine mounts. I believe this was due to the twisting torque of the engine, so I added a stay bar from the top rail to the bell housing to spread the load then inserted & welded smaller diameter tubes inside the top tubes to strengthen them.
I'd be interested to know peoples thoughts on how forces from hard cornering act on the chassis.
Moto
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