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accordionfolder
accordionfolder HalfDork
3/30/17 2:15 p.m.

In reply to Keith Tanner:

Gotcha, I'm building a race chassis Exocet so this is relevant to me... I always forget about the welded steel floors vs aluminum.

Glad to hear the driver wasn't hurt.

Schrödinger's Flight Service
Schrödinger's Flight Service MegaDork
3/30/17 2:58 p.m.

In reply to DaveEstey:

Exocet has a substantially larger than 1" door tube. The floor has the square.

I do not think any unibody car would perform any better than the Exocet did in a hit like that.

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
3/30/17 4:28 p.m.
Keith Tanner wrote:
accordionfolder wrote: Holy E36 M3.... Any conjecture on how much better/worse a race chassis would've been? I'm assuming they had a helmet on...
The race chassis adds the tube at the top of the halo, so there's 33-50% more structure right there - depending on how you feel about that 1" square tube on the floor. It's also not bent. The Race adds welded steel floors instead of the riveted aluminum ones.

Looking at the hit again - the Race chassis has the main top tube right about where this thing took the hit. So it probably would have turned out to be significantly stronger, as it would have transferred a lot of force to the other side of the car.

java230
java230 SuperDork
3/30/17 4:42 p.m.
Keith Tanner wrote:
Keith Tanner wrote:
accordionfolder wrote: Holy E36 M3.... Any conjecture on how much better/worse a race chassis would've been? I'm assuming they had a helmet on...
The race chassis adds the tube at the top of the halo, so there's 33-50% more structure right there - depending on how you feel about that 1" square tube on the floor. It's also not bent. The Race adds welded steel floors instead of the riveted aluminum ones.
Looking at the hit again - the Race chassis has the main top tube right about where this thing took the hit. So it probably would have turned out to be significantly stronger, as it would have transferred a lot of force to the other side of the car.

Main hoop looks like it ties in right at the dash bar (looking back at the pic posted with it in red) Im not sure what it would have done. The halo hoop definitely would have helped though.

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
3/30/17 5:03 p.m.

The bar that goes across at the top, whatever you call it.

java230
java230 SuperDork
3/30/17 5:22 p.m.

In reply to Keith Tanner:

Ah semantics, yes that one

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