Brickend

My advice may come across as horrible but that is not the intention. If this was my creation, I would see this MOC as an interesting exploration/learning project and start again, using the lessons that I had learnt. I will be frank, there is some pretty bad geometry in the steering and suspension setup, attempting to alleviate some of these issues appears to have made the model far bulkier than it needs to be for the functions included. If you want a really big car, then a redesign would instead free up much more interior space and make the car more accurate. Either look through previous lego Supercar instructions or search out others' solutions to independent suspension, there are plenty of examples out there.

Beautiful. I do much prefer to see trial trucks with more realism in the drivetrains.

The PDK gearbox has the clutches and gearboxes inline, not side by side. Much more compact and integrated in real life but obviously much harder to realise in Lego and the result would not be that compact. I was querying if such a gearbox could actually be built, maybe only in function and not in form, as they are a very interesting design.

You have done extremely well to get so much in with the constraints of Lego whilst following the technical aspects of the real machine. Have you considered attempting a true PDK gearbox? Do you think it would be possible with Lego? I think if it was, the clutches would be too large in scale terms to match the scale of any Lego wheeled car, but it would be an interesting, stand alone, engineering study.

That was obviously my first thought, but I can not see where the join between two 1x4s would be in the second picture. I think it might just be the angle of the photograph, but I was uncertain, hence the question. Two 1x4s would be logical.

Is the steering rack a modified part? Gear Rack 1 x 8 with Holes cut down, so that it no longer has the holes?

Looks a lot like a E30 touring

Not quite? My view is the exact opposite of yours I think you are just using words when you say "the gravitational pull on he back axle increase" as gravity doesn't work like that. Lifting the rear of the car transfers a proportion of the weight forward whilst raising the centre of gravity and causing possible aerodynamic instability. I think you'll find this is why everyone would use aerodynamic aids to increase down force rather than jacking up the rear of their cars. Don't trust me, get a pair of accurate scales and try yourself.

From your description - "By raising the rear suspension, one can put more weight on the back of the car so the super can achieve high speeds as the traction increases." By lifting the rear end, the inverse would happen, more weight would be transferred to the front axle, undoing the natural tendency of weight transfer towards the rear under acceleration.

Were they left filled with water for a while? I guess it stands to reason that Lego didn't use a metal with the rust resistance properties required for such operation.

I think the time lapse video created from a variably uneven platform could appear be smoothed out by the time lapse process, but in becoming smooth, it would also appear blurry as the camera would be constantly shaking, albeit extremely slowly. I've made time lapses of 2000+ shots and would not envy the task of rotating frames to match a common reference point. The omni wheel machines I have seen, appear to jostle as they move, in order to seek out the directional path of least resistance. Again, I'm not sure what the result for a time lapse would be, it could be interesting. I think I'd choose the smoothest lego wheels I could find and build a 3 wheeled machine with each wheel station independently mounted on a turntable.

Could make for a odd time lapse as the wheels will have high and low point as and they revolve, the camera will tilt, rise and fall.

DLuders - You have the patience of a saint.

I think the functions involved are brilliant and I do like some of the detailing around the cab. I can understand why it is completely panelled in, but for me personally it seems a bit of a shame to cloak a complex model in such a relatively crude way, especially as there seem to be some issues with the proportions, which the chosen approach seems to empathize.

Nice idea. Could you get it to tilt if the structure took greater advantage of counterbalancing? Lowering the COG of the device should reduce camera wobble as well.

Must just be me being daft then - I've never seen a transmission diagram where the components haven't been in order, to me that would seem illogical but you clearly know what you're doing. Can't wait to see it built.

In your diagram, the central diff connects to the front of the right hand engine, not the gearbox. The left hand engine does not connect to a gearbox at all.

We know this is not a MOC, what I am saying is that it doesn't look that official, I don't think it is one of Lego's greatest designs.

Looks more like a MOC than an official lego set, it seems to lack elegance and imagination, reminding me a bit in terms of function of the Technic Quad Bike 8262.

I have been reading your posts with some amusement, you seem to have all of the components but never in the right order. Front and rear engines may give a 50/50 weight distribution, but the weight is in a worse location than it would be if it was centred within the car. I'm trying to think where it has been used as the optimal solution rather than a design exercise or out of necessity due to the underlying chassis not being designed for 4x4 or a single big engine. To add a central differential and gearbox to a Front/Rear engined combo removes any advantages such a layout would have, introducing more weight and packaging issues. You would need to have double the number of driveshafts of a more conventional 4x4 system. Your last diagram shows the gearbox doing nothing. The engine to the left would have no gears, only a clutch. Why is there a direct connection between the front and rear diffs, bypassing the central differential? Maybe I'm reading it entirely wrong, but I don't think text diagrams are the way to plan such things out.