1st crash.

A student who is now with the Oxford Brooks team. Jack and I spent most of November trying to stop his design leaking. Then we tackled making it less tall with that bend, so that would be hard to pin on him. It was designed by him with a lot of emphasis on CFD analysis to maximise airflow.

It fell off the head because none of the mountings were fitted, It's strong enough to manage the tests we have planned for this Sunday.
 
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BigglesPiP said:
A student who is now with the Oxford Brooks team. Jack and I spent most of November trying to stop his design leaking. Then we tackled making it less tall with that bend, so that would be hard to pin on him. It was designed by him with a lot of emphasis on CFD analysis to maximise airflow.

It fell off the head because none of the mountings were fitted, It's strong enough to manage the tests we have planned for this Sunday.
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It fails the rules too.
 
Any idea how you managed to fail the suspension and the driveshaft in the same incident? Seems an odd combination that i'm struggling to get my head around.
 
kaiowas said:
Any idea how you managed to fail the suspension and the driveshaft in the same incident? Seems an odd combination that i'm struggling to get my head around.
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Rod ends in bending which wouldn't pass scrutineering. You can see one of the threads parts has bent
 
Hmmm, this is the sort of input we really do want. I take it with the intake you were referring to that the fuel rail and manifold needs to be fastened to the engine? We're doing that.

I can't find anything in the 2010 rules about not bending rod ends or wishbones.

Remember this is out 1st car, about 50% of the chassis design and a lot of the intake and suspension design is taken from the class 2 entry and done by students who aren't here now.

As for reading the rules, the whole team read all the rules and try to poke holes. We also have regular visits from one of the Judges.
 
kaiowas said:
Any idea how you managed to fail the suspension and the driveshaft in the same incident? Seems an odd combination that i'm struggling to get my head around.
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Us too, here's my theory:

1. I brake.
2. The front wheel runs away with the calliper.
3. I brake hard with the remaining rear circuit.
4. The single rear brake being on the diff, the welds in the shortened shafts couldn't take it. One shaft failed and now there's no brakes at all.
 
Why are the injectors so far upstream? Could you not use the stock throttle bodies with no plates for something more elegant?

What are the bolt are parts on the uprights?
 
The rod ends broke thats why the wheel fell off.

Some of them have over 2cm of thread under bending!

6mm bolts on double shear load paths are also against the rules I think.
 
Simon said:
The rod ends broke thats why the wheel fell off.

Some of them have over 2cm of thread under bending!

6mm bolts on double shear load paths are also against the rules I think.
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Ah, yes, we have a plan regarding that. There will be new uprights designed to take larger rose joints (3/8 imperial instead of M8, I think) with no threads exposed. The inner end of the wishbones will point the roses directly at the chassis, so they can do the camber adjust. The wishbones will also be made to a finer tolerance, the current ones are rubbish.
 
Jonnycoupe said:
Why are the injectors so far upstream? Could you not use the stock throttle bodies with no plates for something more elegant?
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That's what we've done, removed the butterflies from the original bodies. The design from the CFD guy includes moving the injectors up.
 
You need spherical bearings on the wishbones if you want to do well in the design competition. Rod ends are only really acceptable on steering arms or push/pull rods.
 
That was also mentioned today. We've been looking through hundreds of photos of other entries and racing car design books.

I should make it clear, I'm no suspension expert, I'm the electrical guy (loom #1 worked 1st time by the way, #2 is being done with all new connectors, Deutsch where possible), I have a reasonable level of understanding of other areas of the car, I've done a bit of engine work for example. But when you say "spherical bearing", I need to go and read a book.
 
0904or_10_z+camburg_engineering_long_travel_kit+1_inch_spherical_bearing.jpg
 
That's some sweet bodywork.

We have all the parts for 8 new wishbones now, the lower ball joints are spherical bearings. We've tested a couple of times since the crash and we're consistently bending rear lower roses. Welding the new ones up tomorrow.

Also; we all hate Percy, when we're done we're going to burn him. Our headrest now looks a lot more like yours, position I mean.
 
I just noticed something: You're using a re-baffled sump? Is it still the wet sump as per the bike? Back when we used the CBR (And now with the Aprilla) we had to switch to a dry sump to avoid oil starvation during cornering.
 
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