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Dec 20, 2018 14:23:46 GMT
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"Agreed, that's why there will be an aluminium push button on the outside of the door and some way of pulling the door open." "...some way of pulling the door open..." you already have one of these it's called a 'handle' why not loose some weight on existing items (external handle) ? Still an impressive build either way, keep up the good work ! ... The handle is heavy and so is going :-) I will probably simply add a small, finger sized, hole for pulling the door open. As I will probably be using the existing latch mechanisms these will be heavily lightened, by replacing parts with carbon where possible and lightening the rest.
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Dec 20, 2018 16:21:31 GMT
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Carbon fibre handle?
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Dec 20, 2018 17:56:24 GMT
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Use the original as a pattern?
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I have thought about that, but making the button work was beyond my skill set. The aluminium button should work and sits flush with the door so should improve the aero a tad.
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Dec 27, 2018 18:21:04 GMT
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One more (albeit rather expensive) piece of the jigsaw.
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tristanh
Part of things
Routinely bewildered
Posts: 990
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Speed sensor for traction control?
Actually, scrap that, it's a lambda sensor isn't it.
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Last Edit: Dec 28, 2018 0:27:55 GMT by tristanh
Whether you believe you can, or you cannot, you're probably right.
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Speed sensor for traction control? Actually, scrap that, it's a lambda sensor isn't it. Correct :-)
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Went to a New Year's eve party last night (as you do). We were discussing plans for the fireworks on our Whatsapp forum and someone asked if anyone had some bricks that could be used to secure a large firework. I replied that we had a lot, how many did he require? The response was 're they carbon? :-) So, I thought that I would make one and take it to the party. It came out pretty well, even if I say so myself. As bricks are pretty heavy, they would make cheap ballast to help keep the rear wheels planted. However, carbon is very light so a carbon brisk is the best of both worlds, a heavy item made from light materials so I get the increased traction without the extra weight. Brick has been removed from inside the carbon - I am not that stupid as to leave it in! I have been looking at the air flow into and out of the engine bay. With the floor restricting the air from flowing under the car (a good thing) it can only get out via the wheel arches which are full of tyres. There are vents on the top of the wings but nowhere else for the air to escape to. If I knew nothing about differential pressure I would simply do what others do, try to vent the air out of the rear of the bonnet. This is often attempted by raising the rear of the bonnet. However, this is one of the areas of highest air pressure on the car, which is why car designers place the heater intake vents here! So, what is likely to happen is that air will flow INTO the engine bay. You many get some exit flow around the edge of the bonnet but the net cooling effect is likely to be minimal. So, what to do? After some thought I have decided to try this. Fit a deflector to the rear of the bonnet which directs the high pressure air up and over the screen. This will, hopefully, create a reduced pressure at the base of the screen, allowing air to escape from new vents. The theory seems sound to me, but I won't know for sure until I can do some real world testing. Discuss :-)
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Last Edit: Jan 1, 2019 15:51:17 GMT by nalesutol
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That really confuses the ‘which is heavier a ton of bricks or a ton of feathers’ riddle You for got a ton of Carbon which is probably lighter than both. LOL
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Checking that rear wing actuator mechanism works. 3 seconds to full height. I wonder if it is possible to improve on this?
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Last Edit: Jan 1, 2019 18:22:23 GMT by nalesutol
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Darkspeed
Club Retro Rides Member
Posts: 4,848
Club RR Member Number: 39
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Checking that rear wing actuator mechanism works. 3 seconds to full height. I wonder if it is possible to improve on this? What's the use going to be?
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Checking that rear wing actuator mechanism works. 3 seconds to full height. I wonder if it is possible to improve on this? What's the use going to be? Possibly a rear wing/air brake. Just playing with ideas at the moment
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Darkspeed
Club Retro Rides Member
Posts: 4,848
Club RR Member Number: 39
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I thought that movable aerodynamic devices were still banned in motorsport outside of F1's strictly controlled criteria.
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I am not building this as a competition car so I don't need to comply with any rules other than MOT ones. However, if I decide to enter any I will convert the car to comply with the relevant rules.
This is just a fun exercise that may fall by the wayside, especially if a wing proves to be unnecessary.
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A parachute weighs much less and has no moving parts - just sayin
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A parachute weighs much less and has no moving parts - just sayin The weight of a passenger to re-pack chute for next lap........
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A parachute weighs much less and has no moving parts - just sayin Well, there is the actuating mechanism and if the parachute doesn't move when required............:-) I have a parachute :-) However, the wing will only be fitted if it is needed for stability. If this is the case then making it capable of doing two jobs seems a no-brainer.
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Assembled wiper motor and blade. Swept angle is now around 120 deg, not far off the 110 I was aiming for but I couldn't get the new hole closer to the centre by more than 5mm (calculated that I needed 6mm to achieve 110deg sweep) so this will have to do.
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Last Edit: Jan 2, 2019 17:08:18 GMT by nalesutol
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