42083 Bugatti Chiron - MODs and Improvements

SNIPE · May 8, 2019

On 5/7/2019 at 9:11 PM, jb70 said:

Thanks to @SNIPE 's great idea and inspiration I think, I finally found a solution how to

integrate a center diff into the main power train inside the gearbox,

that fits into the Pimp-up-my-Bugatti design

and keeps the well balanced sequential gear ratios from @Didumos69 's proved solution:

Very Cool. Is it possible to make it a 7 speed like the real car?

Edited May 12, 2019 by SNIPE

jb70 · May 19, 2019

I successfully tested the new gearbox with center diff in the Pimp-up-my-Bugatti.

Some minor modifications were necessary:

Some minor changes in the chassis to get the new gearbox fit in
The housing of the gearbox was blocking to the chassis during marriage
Fixture of gearbox to chassis was too wobbly
changed rubber band fixture to have a smooth change between 4th and 5th gear

So finally the gearbox looks like this:

And Pimp-up-my-Bugatti v1.5 is released:

Have fun to pimp up your Bugatti, if you like!

polda · May 20, 2019

Oh gosh, you are so great :-D
I just received my parts for the Bugatti 1.4mod.. Are there any parts differences?

EDIT: sorry, I see it in the comments.....

BTW. How would you build the set? First, following LEGO instructions, and then modify.. or building the pimp-up version straight away? :-)

I am building GT3 RS 1.4 straight away, it is not always easy (but worth it)..

Edited May 20, 2019 by polda
not enough attention

SNIPE · May 20, 2019

It would be cooland not so hard to add a two stage ride height option just like the real chiron has, to get to the top speed the car has an option in the cabin that lowers the car down along with the spoiler.

jb70 · May 20, 2019

9 hours ago, polda said:

BTW. How would you build the set? First, following LEGO instructions, and then modify.. or building the pimp-up version straight away? :-)

If you have the time, I would recommend to build the original version, first. The original building instructions have a lot of additional info about the model and the real car. And listening to the podcasts while building is a great building experience!

Play with the final car and then rebuild the pimp-up version to feel the value of the improvements.

Skxawng · May 20, 2019

Just ordered my parts for v1.5!

Also just finished the first build as standard. I was sure that I wouldn't have trouble with my front suspension- all the way through, almost to the end, it was springing back up fine. It seems like the last few pieces and the bonnet were too much for it in the end..

Thanks for the work gone into these mods and Instructions.

@jb70 do you think there'll be a v1.6?

Vectormatic · May 21, 2019

Hi guys, quick question, is it possible to colour swap the chiron with official parts? Im seriously debating picking up the set, but im not entirely sold on the colour scheme (and some of the functions, but those are fixable), The wheel arches are probably the limiting factor, but im not sure if all other required parts are available. From what i can find the wheel arche is available only in orange, dark blue, medium azure and purple though :(

SamuelYsc · May 21, 2019

Looks like i have been forgot to update the stats of my card here...

Say no more, see photo!

Full Album here : https://imgur.com/a/x8HnYnC

SNIPE · May 22, 2019

20 hours ago, vectormatic said:

Hi guys, quick question, is it possible to colour swap the chiron with official parts? Im seriously debating picking up the set, but im not entirely sold on the colour scheme (and some of the functions, but those are fixable), The wheel arches are probably the limiting factor, but im not sure if all other required parts are available. From what i can find the wheel arche is available only in orange, dark blue, medium azure and purple though :(

NOTE that some other technic and system parts that are used for the bodywork will also need to be in the right color too

So the closest colors would be white, orange, dark blue, or dark azure.

White, with red accents would be possible if you used the Porsche 911 RSR wheel rims.

EDIT: I did a quick recolor I'd use the Porsche wheels and the wheel-disk-brake adapter trick found here or just dont use the bugatti disk brakes with the porsche wheels

Edited May 22, 2019 by SNIPE

polda · May 22, 2019

On 5/20/2019 at 6:20 PM, jb70 said:

If you have the time, I would recommend to build the original version, first. The original building instructions have a lot of additional info about the model and the real car. And listening to the podcasts while building is a great building experience!

Play with the final car and then rebuild the pimp-up version to feel the value of the improvements.

OK, thanks, this makes sense :-)

Vectormatic · May 22, 2019

@samuelYsc cool work, im digging the LibertyWalk stickers and overal look, nice and over the top

@SNIPE Thanks, the mudguard is the big limiting factor i guess. As for your white recolour, those white 911 RSR mudguards are smaller, so probably wont fit over the GT3RS or Chiron wheels while still retaining steering and suspension travel.

hsky · July 5, 2019

:-)

Edited July 15, 2019 by hsky
Stupid Question was asked.

Gzynek2323 · July 8, 2019

On 5/21/2019 at 8:19 AM, SamuelYsc said:

Looks like i have been forgot to update the stats of my card here...

Say no more, see photo!

Full Album here : https://imgur.com/a/x8HnYnC

Looks awsome

great job

nerdsforprez · July 15, 2019

On 7/28/2018 at 5:11 PM, LegoHoops said:

After going through all 20 pages of this thread ( I will be updating my 42083 soon) I was surprised to see no comments on this change above:

IMO, this is the best change recommended for the C shape on the outside of the Bugatti. Instead of the annoying and disrupting clip pieces on the sides the T connector for pneumatic hosing looks great. nearly no disruption of the C. I think this is a change I will apply.

Also, just so I am clear here….. for the various changes (HOG steering, improved from end, simplified gearbox, etc.) each is in the instructions? So, if one wants to pick and choose which he/she would like to apply they just have to do that selection as they go through the instructions? Is this correct?

SNIPE · July 18, 2019

@jb70 Maybe we can fit this mod into pimp my bugatti v1.6 ?

It's an RC mod but does not replace the engine or gearbox (which is exactually what I want) It does not have RC shifting yet (I still think manual shifting should be left in by having an "OR latch" like in the gearbox of the lego 9396) so that the paddles do not try to turn the shifter motor shaft even though the shifter motor is not running)

https://shoptly.com/i/hgs

I have not got around to making adjudtable ride height yet but there is only really one way I've seen to do it (with worm gears) so I'll just copy that.

RC spoiler, RC shifting and RC ride height will probably be in version 1.7 or higher I know that the Lego technic mclaren P1 MOC has all of the above things except for AWD, gearbox, shifters and large scale engine so I think it is definetley possible but maybe we should also be re-designing a lot of the chassis for future mods when the full range of new technic parts come out:

28 tooth gear

7 x 11 x 1 frame

11 x 15 x 1 frame

Technic baseplate 11 x 19 x 1

Biscuit connector 3 x 3 x 1

Linear clutch

New CV joints

Wire clips

Maybe Control+ and/or Spike prime electronics

Buwizz-es

Edited July 18, 2019 by SNIPE

WW Bricks Studio · July 18, 2019

Hi Everyone

First, Thank you, SNIPE, for sharing our RC instructions, if you have any questions, please feel free to let us know.

In response to "It's an RC mod but does not replace the engine or gearbox", our RC mod does not need to replace engine, but it needs to change the gearbox to be the base of 2 XL motors.

Edited July 18, 2019 by WW Bricks Studio

Oozin · September 9, 2019

Hello, I have been following this thread for a while now and I am very impressed by everyone's contributions, Especially for tackling the problems with all the friction in the original gearbox, great job on that guys (you know who you are)!

I am also very found of the easy to apply mods such as choxs door locks, openable rear cover and openable glove compartment, I applied some of these myself aswell and removed alot of friction by rebuilding it from scratch.

One Idea I had was to make some room for the first gear that connects on the same axis as the rear differential to make that gear able to slide on the axis so it enables you to slide the gear of to the side to dis-engage the gearbox completely for Increased playability whenever you like to. Love your design SamuelYsc.

Here are some images of my Chrome Bugatti, Rims are ordered from AliExpress and slightly modified with a dremel to enable them to connect to the hubs of the Bugatti since they are originally designed for the Porsche. I chromed it using Aluminium Tape, cose be about a dollar in total and was easy to work with. Also I should add it took about 20 hours to tape all the parts. (I'm not planning on ever re-use the parts in another build than this.)

I would also like to recommend to switch the blue friction pins on picture 5 (down below) to shorter black pins in page 6 on both sides, this enables you to open up the rear to access the engine and back suspension, super easy mod and gives alot of interaction-value to the model.

Edited September 9, 2019 by Oozin
image problem

SamuelYsc · September 9, 2019

25 minutes ago, Oozin said:

Hello, I have been following this thread for a while now and I am very impressed by everyone's contributions, Especially for tackling the problems with all the friction in the original gearbox, great job on that guys (you know who you are)!

I am also very found of the easy to apply mods such as choxs door locks, openable rear cover and openable glove compartment, I applied some of these myself aswell and removed alot of friction by rebuilding it from scratch.

One Idea I had was to make some room for the first gear that connects on the same axis as the rear differential to make that gear able to slide on the axis so it enables you to slide the gear of to the side to dis-engage the gearbox completely for Increased playability whenever you like to. Love your design SamuelYsc.

Here are some images of my Chrome Bugatti, Rims are ordered from AliExpress and slightly modified with a dremel to enable them to connect to the hubs of the Bugatti since they are originally designed for the Porsche. I chromed it using Aluminium Tape, cose be about a dollar in total and was easy to work with. Also I should add it took about 20 hours to tape all the parts. (I'm not planning on ever re-use the parts in another build than this.)

I would also like to recommend to switch the blue friction pins on picture 5 (down below) to shorter black pins in page 6 on both sides, this enables you to open up the rear to access the engine and back suspension, super easy mod and gives alot of interaction-value to the model.

Cool colour management and nice light!

And that is great to hear that someone has inspired by my things! Keep going!

And on my side I have been trying so hard to convert it to a real Divo.
And yet still working on it....

Vectormatic · September 9, 2019

Looks good @Oozin, the chrome tape looks a bit odd when one is used to matte finish lego, but certainly improves the look of the result. I also like the opening engine cover.

Im currently in the process of building 42056 according to the PMP 1.4 instructions and enjoying it so much that i might rebuild my chiron to PMC spec later on, The chiron out of the box is acceptable from a technical standpoint, but the pimped out porsche is easily a step or two above it in terms of technical features from what i can tell right now (just built the gearbox and flappy paddles)

pleegwat · September 10, 2019

Looking into building the pimp up my bugatti version, I'm short a 20t clutch gear. Knowing the standard build and verifying in the pimped instructions, there is one next to the rear differential which can be easily freed up - it's sitting on a 3l non-friction pin, but I think that 3l frictionless pin can be replaced with a 2l axle on frictionless pin - the second unit of pin length isn't needed there. This is on book 1 page 7 step 3 of the pimped instructions.

It might be worth including this change if a 1.6 version of the pimp up my bugatti is ever made, as the substituted parts are probably easier to source for most people.

Appie · September 11, 2019

@pleegwatThe 3L pin is probably chosen for ease at disassembly of the set. As for why Lego placed the 20T clutch gear there in the first place hasn't been answered afaik, besides the "excuse to get another one of these new parts in the set" anyway.

Edited September 11, 2019 by Appie

pleegwat · September 11, 2019

I hadn't even considered keeping it out entirely. I guess it may be giving some counter-force to keep the differential in place as it turns, but then why didn't they do the same at the front axle?

LupoNegro · November 1, 2019

Modded my car at v3, is there a list of parts need to bring up to current version, thanks?

nonnyboxer · November 12, 2019

Hey guys,

I’m very new to rebrickable, and I’ve been playing around with the Bugatti Chiron after saving up for it! In the back I’ve put in a couple of motors and bits to raise the spoiler and raise the rear, however they aren’t that well done, so I’ll keep working on them...

On the front I’ve been able to fit a linear actuator in and connect it to a gear in front of the model. I think that it hardly disrupts the flow of the model - apart from the grey block in the bonnet - and is actually pretty useful. Have a look at the pics down below.

9309C343-DE9D-4B21-B705-FE545350C23E.jpeg.24596b83eaaf04404306571607c6e631.jpeg

BB6A1713-59E3-4C27-AEF9-2DE7B6B881EB.jpeg.f678661735a2d62be5a373bb9be813ef.jpeg
Any pointers would be greatly appreciated, thanks in advance?

jb70 · November 18, 2019

On 9/11/2019 at 12:07 AM, pleegwat said:

Looking into building the pimp up my bugatti version, I'm short a 20t clutch gear. Knowing the standard build and verifying in the pimped instructions, there is one next to the rear differential which can be easily freed up - it's sitting on a 3l non-friction pin, but I think that 3l frictionless pin can be replaced with a 2l axle on frictionless pin - the second unit of pin length isn't needed there. This is on book 1 page 7 step 3 of the pimped instructions.

It might be worth including this change if a 1.6 version of the pimp up my bugatti is ever made, as the substituted parts are probably easier to source for most people.

Good idea! I will take this on my list for 1.6 (so far this is the only change planned, so I will wait until some other major changes...). I think we can completely remove this blue 20t clutch gear in the rear diff. There is no one in the front diff, so it should work fine without.

So maybe TLG just wanted to give us a free clutch gear in the Chiron, now we need two of them :wink: . But they are affordable now, because they reappear in some newer sets since 2019.

42083 Bugatti Chiron - MODs and Improvements

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