Scaffolding poles + old VW bits + Rotary engine....
Discussion
Yea it wasn't easy, she went through a big operation 2 months ago and was just about healed up and getting back on her feet, they literally just signed her off at the vets for recovery so she could go out walking again and then cancer spread into her lungs and it was downhill rapidly from there. Didn't know it was cancer at the time so it was a hard few days trying allsorts of treatments while she struggled to breathe, then she passed away in the car on a run to the vets when she took a turn for the worse, was not pleasant for her or me unfortunately.
TGCOTF-dewey said:
Phill, a lot of the comp photos show it landing nose heavy. What's causing that? Rear rebound too fast or a rotating mass effect.
It's mainly the rear having more travel than the front these days - the front leaves the floor but the rear still has another 4-5" of travel left and pitches the car up - but also the front dampers are still on Fox's standard internals, which aren't ideal, I need to valve the whole stack lighter, take out the dual-rate compression stack and bias the damping to be much more compression led than rebound, which should help somewhat, as the front will rise a little faster....although sometimes it's just the profile of the bump, if it's got a square edge on the launch face it's going to pitch you over somewhat no matter what, and the photographers love standing in those places:
But yes it's still a bit too much, unfortunately I can't sneak any more travel on the front trailing arms bar maybe half an inch, and the rear damping is about at the limit of the mid-speed rebound we can cope with without it causing the back to snap around, so it's gonna come down to how much I can improve up front.
But yes it's still a bit too much, unfortunately I can't sneak any more travel on the front trailing arms bar maybe half an inch, and the rear damping is about at the limit of the mid-speed rebound we can cope with without it causing the back to snap around, so it's gonna come down to how much I can improve up front.
It's a case of doing as much as I can, while still being a bit limited by the physics of the suspension and rear heavy car, really 
It is better than it was last year since I revalved the rears, but it's still not ideal.
I could fix a lot more of it by making a secondary piston in the rear dampers that was terrain sensitive - so it increased the damping when the body was moving relative to the ground and reduced it when the wheel was moving to react to potholes, etc. But it's a very tricky thing to tune in if you're making one from scratch without a lot of sim and testing work.
The easiest way might be just to finish making the big rear wing and slap that on as a bandaid.
It is better than it was last year since I revalved the rears, but it's still not ideal.
I could fix a lot more of it by making a secondary piston in the rear dampers that was terrain sensitive - so it increased the damping when the body was moving relative to the ground and reduced it when the wheel was moving to react to potholes, etc. But it's a very tricky thing to tune in if you're making one from scratch without a lot of sim and testing work.
The easiest way might be just to finish making the big rear wing and slap that on as a bandaid.
Edited by PhillipM on Tuesday 24th October 13:58
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