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Car Chassis
Functional medium sized Technic chassis with V8 piston engine, gearbox, full suspension and working steering.
About this creation
Actually this is a work in progress (WiP), but because certain people are interested in the mechanical engineering, I decided to show this too.
For the final result, some kind of Mustang type of pony car go here

The idea was to make a smaller chassis, but still with many characteristics of a 'Supercar'. The biggest challenge was to cram in all the functions and still have a well proportioned and good looking model. Especially the width in comparison with the wheelsize is always a critical point. Another one is the size of the gearbox.

Some specs:
Width: ca. 20 studs
Wheelbase: 30 studs
Frontaxle: Independent wishbone suspension
Rearaxle: Driven, live axle suspension
Gearbox: 4 speed
Engine: V8
Steering: Both steering wheel and 'hand of god' (HOG)


Beginning with an overview of the chassis showing the proportions which mainly look better due to the slimmer and more realistic tires.




The car is rear driven and has live axle suspenion.




The front has double wishbone suspension. Notice also the big flywheel on the engine.




Due to the smaller scale of the car it is installed with 'only' a 4 speed gearbox.




To keep the center console within a certain width, the height had to be compromised a bit. You can hardly have both.




Besides a working steering wheel, the car can also be controlled at the back.




At the bottom notice all the different axles going through the center part of the car.




Ofcourse the biggest question is now what the carrosserie should be like. Perhaps some kind of musclecar, but first I need to get some more cool looking parts in interesting colours.



If you are curious what the final car turned out to be like, then have a look here



Comments

  February 9, 2014
Are you able to post an instruction for the rear axle?
 I like it 
  March 24, 2012
Hi great chassis. All necessary functions you needin a chassis in this compact way. I am impressed. Can you provide a more detailed picture of the steering I love the up-side-down approach? Again great MOC!!
  March 18, 2012
Thanks. I have to admit, motorization was exactly what I thought of :-) But this won't keep me from upgrading my inventory with those sets and try my hand on your chassis. Could the 'LT cardan ball' with the 'cardan cup with cross axle' be a possible solution for this problem as the 'LT cardan ball' allows axial movement (at least in my old 4x4 Offroader)?
 I made it 
  March 15, 2012
Quoting Peter Alraun That's really a great Chassis, I'd buy it immediately. I build a model of the live axle suspension (one of the most intelligent suspension systems with LEGO I've seen so far) with my limited possibilities and it works really smooth. Nevertheless I remarked that a lot of forces work on the driveshaft and with a rotated axis, there's a lot of compression on it too. Does this affect any parts? Until there is a purchasable Version, can you suggest some sets which are required to build this model? I want to upgrade my collection reasonably
Yes, in full compression some forces will have influence on the drivetrain. However, I do not think it will affect any parts as long as you do not modify this design, like for example motorization. Regarding sets, I suggest 8258 for the frames and lot's of other useful parts, and 9392 for the front suspension. This should get you far.
 I like it 
  March 12, 2012
That's really a great Chassis, I'd buy it immediately. I build a model of the live axle suspension (one of the most intelligent suspension systems with LEGO I've seen so far) with my limited possibilities and it works really smooth. Nevertheless I remarked that a lot of forces work on the driveshaft and with a rotated axis, there's a lot of compression on it too. Does this affect any parts? Until there is a purchasable Version, can you suggest some sets which are required to build this model? I want to upgrade my collection reasonably
 I like it 
  February 23, 2012
Excellent, I've just got back into Lego Technic after many, many years away from it so I'm like a beginner again, this is a great starting point for people like me!
 I like it 
  February 22, 2012
Looks like a fantastic chassis, I've always wanted to build a nice Technic car, but the chassis always gives me trouble. The solutions you came up with are very clever, outstanding!
  February 20, 2012
This is so elegant! I love the radiator fan, something I've never seen in a Technic car before.
 I like it 
  February 18, 2012
Very good chassis! Nice work on the rear suspension and I like the scale. Most of the supercars are too big to play with and the chassis curves. This is a good design, because it's smaller, but it contains all the necessary functions!
 I like it 
  February 18, 2012
Super neat! This could be the chassis in any type of car. 5 stars well deserved here!
 I like it 
  February 16, 2012
Finally a new technic moc from you !!!! I´ve been waiting for this. Love the scale; nice challenge fitting all those functions in there. Great job. The rear suspension is AMAZING.....so creative... Good luke on the body... I like the idea of a muscle car; or perhaps a european classic ???.....anyway.....can't wait to see it !!!!!
 I like it 
  February 16, 2012
Wow, you've included some very cool Technic functions in this chassis! The rear axle construction is my favourite detail. You don't see many of those built with LEGO Technic. Great job, so far. Can't wait to see it as a base of a Muscle Car or a Hot Rod! :-))
 I like it 
  February 16, 2012
This middy chassis is fully stocked with some very well suited functions for its size. Great job on the rear suspension set up. A mid sized muscle like the holden torana would look nice. Great entry.
 I like it 
  February 16, 2012
ravishingly beautiful!
 I like it 
  February 16, 2012
Wow, it's great!
 I like it 
  February 16, 2012
Cool! I like all the working functions! Excellent work
Nathanael Kuipers
 I like it 
kenneth rattledge
  February 15, 2012
excellent chassis, very nice
 I like it 
  February 15, 2012
I like how you used the steering rack upside down... Lots of really really cool stuff going on here...
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  February 15, 2012
Great suspension!
 I like it 
  February 15, 2012
Good scaled downn model. I think chassis is perfect for old style muscle cars like Mustang, Pontiac etc. Are real suspension work smooth?
 I like it 
  February 15, 2012
The chassis looks very good. Solid build and nice functions. The front A arms aren't my favorite ones though. 5/5
 I like it 
  February 15, 2012
Hi Nathanael, great too see you posting another technic supercar. The gearbox and transmission is fantastic. As mentioned below the suspension is great. I also really like the use of the ‘box section’ positioned vertically just behind the V8 engine – that must make it very strong. My only gripe with Lego’s supercar range is that they are just a little bit too big to easily play with (except the 8070). This looks like it is going to be very playable especially as it has the HOG steering (a must for my larger creator and technic cars). Can’t wait to see body work
 I like it 
  February 15, 2012
Aha I'd never thought of that for leaf springs, certainly much better than LEGO®'s attempt on the Unimog.
 I like it 
  February 15, 2012
Very spiffy!
 I like it 
  February 15, 2012
Very nicely done!Engineering is just genius!Great job:-))
 I like it 
  February 15, 2012
Excellent Technic engineering here - nicely compact too, especially width-wise.
 I like it 
  February 15, 2012
the amount of detail on this is immense! seriously! can't wait to see the bodywork! :D
 I like it 
  February 15, 2012
That looks great :D Can you post some pictures of the rear suspension in detail, or give a bit more explanation, because, to me, it looks like it'll swing to lef/right :/
 I like it 
  February 15, 2012
This is fanatsic work!. The proportions came out really well (such as the height of the engine, the width of the car), yet so full of technical goodies. Great job!
 I like it 
  February 15, 2012
Amazing work! One of the best looking functional chassis I've seen. I thought it was very clever how you connected the rear suspention springs. Maybe a you could build a Camaro Z28 on the top of this, the one that was in Transformers (the old style)? I think that would really suit this chassis :-) What ever you build I'm sure it will be great!
 I like it 
  February 15, 2012
Stop your actual job and start selling your instructions models as PDF online.
 I like it 
  February 15, 2012
This is fantastic! It's very impressive that you've got al those functions in this car! The overal look is already very good! I can't wait to see this beauty completed! :-)
 
By Nathanael Kuipers
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