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Rear wheel drive estate car
This car is built mostly out of parts from the 8880, plus a significant number of post-1994 parts including small studless arms (mainly in the suspension) and grey 5 and 7 axles, and various other pre-1994 parts that I haven't entirely kept track of.
About this creation


Front view of car. Lip service has been paid to curvy style of 8880's bodywork - I've only bothered using hinged plates on the windscreen pillars. The aerial is made out of a flex cable.
The thing suspended from the front of the engine block is supposed to be a radiator !
The headlamps don't pop up and down - this isn't a sports car !
The front seats are reclinable and can slide backwards and forwards using the good old rack and pinion system.



The six cylinder in-line engine. There wasn't enough room for all eight cylinders from the 8880 ! The 2nd and 3rd pistons share a crank, as do the 4th and 5th (I didn't have enough crankshaft parts to give each piston its own crank !)
This shot also shows the grey bushes forming the tops of each of the front suspension mountings, as well as parts of the blue studless arms that help to brace the upper suspension mounts.
There is no bonnet as I'd run out of parts by this point !



The interior. The grey latticed part is a lamp column from an '80's Lego railway platform. The handbrake lever moves and pulls a cable, but the cable does not operate any brakes.
The four speed gearbox is taken from the 8880, and the ratios of the four speeds is as per the 8880 though slightly truncated in terms of length from front to back due to less space being available.




Rear view with boot open. The floor in the boot space appears uneven - this is because the front of the floor is mounted on the same beams as the sloped rear seats, and allows sufficient space for the rise and fall of the differential as the rear suspension is applied. The rear of the floor is level with the rest of the car.
The dampers rely on the friction of the black pegs at the top damper moutings, and the black pegs in the pivots of the boot itself.
You may notice the wing mirrors, which have been reproduced from the 8880 unaltered - why change something so nice?



View of underside of car. I haven't been very original with the gears, as the ratios and layout is the same as that of the 8880. The chassis of the car is rigid with very little flex.




Underneath the front axle. The black elements to the front and rear of the blue lower suspension wishbones look clumsy but provide essential additional bracing to minimise play of the wishbone backwards and forwards.
The drive shaft runs just from the front of the car, below the steering rack, to the front of the gearbox.
The 2-length axles sticking out of the bottom of each rearmost shock of the front suspension is merely a steering lock aid.



Underneath the rear axle, showing the floating rear differential also utilised on some of my other cars.



Front right suspension with wheel removed. Shock absorbers are mounted directly to the wheel bearing / steering arm unit and rotate with the steering. The upper suspension mounting is a pivot point between the tops of the two shock absorbers. The blue element forming part of the ball and socket joint is one of the small suspension wishbones from the "Dakota Wrecker" 8858.
The stub axle passes through three gray elements fused to the wheel bearing. Almost all play in the wheel bearing is due to the wheels themselves, which only support the stub axle to the value of one axle length unit, whereas the older wheels of this diameter support stub axles much more securely.
The steering arm can be shortened or lengthened to increase or decrease toe-out, and allows it to be set up so that the wheels align straight ahead, whilst full lock allows the innermost wheel to turn further than the outermost wheel. Steering wheel turns about one and a half times lock-to-lock.
The linkage visible to the right of the shock absorber is the anti-roll bar system which is linked to the lower wishbone on each side. As it is linked to the wishbone about halfway along, it does not rise and fall as much as the wheels do, and so torsion of the bar itself is very minimal and actually ineffectual, but it looks good and doesn't snag anything !



Rear right-hand suspension with wheel removed. As with front suspension, there is no upper wishbone, and the shock absorbers are rigidly mounted to the wheel bearings.

The car is similar in weight to the 8880, but the suspension is much firmer due to the shock absorbers being attached directly to the wheel bearings, whereas the 8880's suspension was softer due to the shocks being mounted halfway along the wishbones, meaning that they were under greater leverage when the suspension was depressed. Nevertherless the suspension on this car is acceptably smooth due to the rigidity and weight of the chassis.



Comments

 I like it 
  April 12, 2013
Very stylish design with lots of excellent working details. I like the engine - there aren't enough inline 6's on MOCpages! :-)
 I like it 
  February 2, 2013
Nice car. First time I've ever seen a Macpherson front suspension on a lego supercar. :)
 I like it 
  January 22, 2013
Well thought out functions, especially the suspension which I'd imagine now works better than it did on 8880. Well done.
  January 21, 2013
Great design. I am happy someone else has found an application for the floating differential rear suspension design. I have used it a number of times with great results. It's great for when you just don't have enough width.
 I like it 
  January 19, 2013
great use the 8880 super car set looks a bit like a dakar rally car well done on a good moc
 I like it 
  January 19, 2013
Love 8880 and I love what you have done with it. Very clever stuff especially the little things you have done to get around lack of pieces. The whole thing reminds me of a car that I cant remember the name off. I'll be back...
 
By Daniel Wareing
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LEGO models my own creation MOCpages toys shop Rear wheel drive estate car


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