Chimaera 500 work begins
Discussion
900T-R said:
Nice project - do you intend to do anything about the loss of stiffness caused by lowering the upper chassis rails where the engine sits? You might want to do some extra bracing over the engine as per the T4xx race cars...
The Chassis rail has been lowered by 40mm so i don`t expect to much strength has been lost but i`m already on with adding in extra chassis to cope with a massive increase power There`s no room to brace over the engine as in the Typhoon but i`ll brace the underside instead, Fantastic work Andy. And that last shot from underneath is great.
Remember your friend Mr angle grinder?
Well get him to remodel that golf cart back end into something more rounded and beautiful, and while you're at it do a bit of reworking on the exhausts so they come out at an angle.
And the bonnet, don't bother putting that back on, get something a bit smaller a neater.
And cowl in the headlights
Actually, lets face it, I'm trying to tell you to bin that lump of Orange GRP and finish off the upgrade with a Griffith body. It will be perfect
Remember your friend Mr angle grinder?
Well get him to remodel that golf cart back end into something more rounded and beautiful, and while you're at it do a bit of reworking on the exhausts so they come out at an angle.
And the bonnet, don't bother putting that back on, get something a bit smaller a neater.
And cowl in the headlights
Actually, lets face it, I'm trying to tell you to bin that lump of Orange GRP and finish off the upgrade with a Griffith body. It will be perfect
Barreti said:
Fantastic work Andy. And that last shot from underneath is great.
Remember your friend Mr angle grinder?
Well get him to remodel that golf cart back end into something more rounded and beautiful,
Um, he's already got a Chimaera, not the low-rent stumpy square-arsed version with kitcar lights... Remember your friend Mr angle grinder?
Well get him to remodel that golf cart back end into something more rounded and beautiful,
Am I missing something?
All that new 'reinforcement' seems to do is box in the lower chassis rails much like simple closure panels? To increase torsional stiffness don't you need to create tetrahedral structures (4 sided triangular shapes?). Seems to me that strengthening just one side of a box will not really add overall rigidity, just ensure it fails on one of the other (and less visible!) sides IYSWIM.
For similar reasons if you have lowered the chassis rails around the engine I would consider raising the engine mount chassis pickups to try and 'tie' the top rails together again?
All that new 'reinforcement' seems to do is box in the lower chassis rails much like simple closure panels? To increase torsional stiffness don't you need to create tetrahedral structures (4 sided triangular shapes?). Seems to me that strengthening just one side of a box will not really add overall rigidity, just ensure it fails on one of the other (and less visible!) sides IYSWIM.
For similar reasons if you have lowered the chassis rails around the engine I would consider raising the engine mount chassis pickups to try and 'tie' the top rails together again?
Spend
I agree - the mods have increased the in-plane stiffness but hardly altered the torsional stiffness ie to handle the huge torque.
I think the chassis on our cars is a compromise of what you want and what is achieveable.
At the drive end the standard tubing is on the top and side surfaces with the bottom open and vice versa.
Could consider extending the new tubing further forward to compensate the loss of vertical stiffness.
Good luck tho.
Dave
I agree - the mods have increased the in-plane stiffness but hardly altered the torsional stiffness ie to handle the huge torque.
I think the chassis on our cars is a compromise of what you want and what is achieveable.
At the drive end the standard tubing is on the top and side surfaces with the bottom open and vice versa.
Could consider extending the new tubing further forward to compensate the loss of vertical stiffness.
Good luck tho.
Dave
Edited by dlewis on Monday 21st June 23:28
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