scootz
|
| posted on 24/6/10 at 01:38 PM |
|
|
Thanks for that... I've been reading about the COG aspect for a while now - seems reasonably straightforward. Calculating the COG, however, is
a little... erm... interesting.
It's Evolution Baby!
|
|
|
|
|
JF
|
| posted on 24/6/10 at 10:08 PM |
|
|
Well the only real way to calculate it is having all the parts and weigh them I guess. And weigh the car as it is now. Then the calculating fun
starts. Which part to go where, and what is the COG doing when you put that part where you want to put it in the first place.
From looking at the plans of the sub3 it seems like the driver is sitting on the fuel tank. Or really it is under it's knees. Probably not the
prefered place for safety... but usefull for the COG.
You'll have a lot less freedom though... as you have a shell to start with. But I'm sure you can make it work, and it really might be one
heck of a fun machine. Although not as quick around the average circuit as it would be with 4 wheels...
Would still love to have a go in such a crazy trike though... and yeah... they're really cool.
PS. please do put it on some car tyres.
|
|
|
scootz
|
| posted on 27/6/10 at 07:13 PM |
|
|
... and now I have the engine!
2008MY Aprilia RSV-R Factory (V-Twin). 143bhp, Pseudo Slipper-Clutch and Dry-Sump.
[img][/img]
It's Evolution Baby!
|
|
|
Richard Quinn
|
| posted on 27/6/10 at 08:49 PM |
|
|
quote:
Originally posted by scootz
... and now I have the engine!
2008MY Aprilia RSV-R Factory (V-Twin). 143bhp, Pseudo Slipper-Clutch and Dry-Sump.
Image deleted by owner
Good choice! Emissions can be a bit of a trauma (dunno whether it's different for BIVA though)
|
|
|
scootz
|
| posted on 5/7/10 at 03:35 PM |
|
|
Guess you could say I've started!
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 5/7/10 at 03:36 PM |
|
|
Front Corner On...
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 5/7/10 at 03:37 PM |
|
|
Trying to visualize how I'm going to attach the swing-arm!
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 5/7/10 at 03:48 PM |
|
|
And good news on the lighting front... although I will need 2 front 'positional' lights, my car is less than 1700mm wide, so I can use
just use a single Hella Bi-Halogen lamp fitted centrally for dip / main beam!
It's Evolution Baby!
|
|
|
iank
|
| posted on 5/7/10 at 04:58 PM |
|
|
quote:
Originally posted by Richard Quinn
quote:
Originally posted by scootz
... and now I have the engine!
2008MY Aprilia RSV-R Factory (V-Twin). 143bhp, Pseudo Slipper-Clutch and Dry-Sump.
Good choice! Emissions can be a bit of a trauma (dunno whether it's different for BIVA though)
It's MSVA (Motorbike SVA) still for trikes which I believe is easier than SVA for emissions.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
|
|
|
scootz
|
| posted on 5/7/10 at 04:59 PM |
|
|
It is indeed... limit of 4.5%.
It's Evolution Baby!
|
|
|
scootz
|
| posted on 6/7/10 at 11:45 AM |
|
|
Engine Arrived
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 6/7/10 at 11:46 AM |
|
|
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 6/7/10 at 11:46 AM |
|
|
[img][/img]
It's Evolution Baby!
|
|
|
smart51
|
| posted on 6/7/10 at 12:32 PM |
|
|
quote:
Originally posted by scootz
And good news on the lighting front... although I will need 2 front 'positional' lights, my car is less than 1700mm wide, so I can use
just use a single Hella Bi-Halogen lamp fitted centrally for dip / main beam!
I think the limit is 1300mm wide for single headlights. Above this you need 2 main and 2 dipped beams. If you like the hella lights, I will have a
set for sale soon. 1 pair of main beam / side lights and one pair of dipped beam.
The vee twin is a nice fit inside the frame and the swing arm looks like it will fit nicely too.
|
|
|
scootz
|
| posted on 6/7/10 at 12:35 PM |
|
|
That could well be a recent change... my 2007 copy states that more than 1300mm for 2 positional lights, but less than 1700mm for 1 dip / main.
It's Evolution Baby!
|
|
|
scootz
|
| posted on 6/7/10 at 12:56 PM |
|
|
SOME WEIGHTS...
Bare / Wet Engine 70kg
Swing-arm, Pivot, Shock, Linkage, Hugger, Rear Caliper, Spindle, Sprocket, Disc, Wheel, Tyre & Chain 40KG
Front Wheels & Tyres 25kg
Fuel Tank 11kg
Seat 4kg
So, 150kg so far...
I'm contemplating doing it as an exo-skeleton (no bodywork)... so things to add to that weight -
Chassis
Front Wishbones, Uprights, Shocks and Hubs
Front Calipers & Discs
Pedal Box
Steering Rack / Column
Airbox, TB's
Regulator, ECU, Loom.
Exhaust (No Cat)
Front Cycle Wings & Stays
Radiator
Oil Cooler
Oil Tank for Dry Sump
Brake / Oil / Fuel / Lines
I'm hoping for 140bhp at the wheels and would love to hit the 500bhp per ton mark... wonder if I'll get it under 280kg!
I have 130kg to work with! 
It's Evolution Baby!
|
|
|
smart51
|
| posted on 6/7/10 at 01:08 PM |
|
|
If you want to make a light weight then here are some sample figures:
front uprights, discs and callipers 20kg
chassis and floor 45kg
front suspension and steering 15kg
battery, wiring loom, switches, instruments and lights 15kg
lightweight plastic trailer wings plus stays 5kg
nuts, bolts, clips, ties, glue and miscellaneous sticking together stuff 5kg.
that's 105kg so you've got 20 left. Does your seat weight include harnesses? You'll need mirrors too.
I'm looking at 220kg for my scooter engined 3 wheeled single seater so you've set your self an ambitious target there.
|
|
|
scootz
|
| posted on 6/7/10 at 01:27 PM |
|
|
Thanks for that!
It's Evolution Baby!
|
|
|
Peteff
|
| posted on 7/7/10 at 03:13 PM |
|
|
quote:
Originally posted by scootz
Trying to visualize how I'm going to attach the swing-arm!
I don't think bubble wrap and sellotape will do it
Weld a bar across the back of the chassis and some brackets to bolt the swing arm pivot on. Make sure you can align the engine and rear wheel
sprockets before you commit to where the engine is going.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
iank
|
| posted on 7/7/10 at 04:10 PM |
|
|
Personally I'd build (or have built) a subframe to carry the swing arm and engine, bolting in at any/all the current mounting points for
suspension etc.
That way you can unbolt and put it back to being a 4 wheeler if you need/want to, and can unbolt the thing for any major work with 100%
accessibility.
p.s. if the seller put on the plastic wrap before you inspected it in detail I'd be taking it off and checking for cracks and paint problems.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
|
|
|
scootz
|
| posted on 7/7/10 at 04:28 PM |
|
|
Cheers guys.
PS - The 'wrapping' is from the factory... it's never been used.
It's Evolution Baby!
|
|
|
hexxi
|
| posted on 9/7/10 at 05:38 AM |
|
|
Your project looks astonishingly similar to mine! It`s almost identical to my initial design although at this moment it looks somewhat different(2
seats etc). You have the same engine and you are even planning to use the same headlights!
Just a month ago I acquired a MY2001 RSV mille engine. I`m designing the trike with CAD and therefore I`m creating a 3D model of the engine. As I`m
not willing to pay 1000€ for 3D scanning, I`m doing it "manually" instead. I have dismantled some parts like the 1st cylinder and with
help of some basic measuring tools I`m able to model it in CAD with reasonable precision.
I have just started the work and I will probably need some weeks to finish the work but when it`s ready I can give you the model. Please let me know
if you need it.
|
|
|
scootz
|
| posted on 11/7/10 at 09:09 PM |
|
|
Still thinking about the possibility of using a shaft set-up. Took out a couple of the upper brace-bars on the chassis to see what sort of fit the
RSV engine is if mounted transversely.
Works pretty well... enough space for the exhaust primaries (just!) and I could shorten the wheel-base by quite a bit too.
Not made my mind up on which way I'll go!
[img][/img]
It's Evolution Baby!
|
|
|
scootz
|
| posted on 11/7/10 at 09:11 PM |
|
|
This is the shaft set-up I'd use (BMW R1200)...
 
It's Evolution Baby!
|
|
|
JF
|
| posted on 12/7/10 at 05:03 PM |
|
|
Sounds like a really nice project to mate up that BWM swingarm to the mille engine. Might be a bit more difficult to work out your reverse though.
Although it shouldn't be impossible to slip in a MNR box, but that might kill your wheelbase shortening ideas. Might be easier to use a electric
reverse.
|
|
|
