DayWalker

It is right ! D and R corresponds to the real position and not the sticker....

So that breaks/calipers are on the same side as the real GT3 RS ^ ^ (sorry, I have added a photo on the previous post)

Why not using a thin 2L arm ?

I agree, it is better that the white rubbers stay inside ! In my deviation, they are still outside. However, I have changed a little bit the influence of the black 2M dampers to reduce strains in the paddle system. By comparison, it seems to be better than reversing the red change over catches (a single white rubber in the 90° locking system is then enough to control the gearbox). If somebody want to test it, it would be usefull to get a feedback ^ ^ I also have a different steering wheel position with a lot of place to manipulate the gear box commands : as you can see, it is very compact ! And it is compatible with the position of the inside handles for the doors (if any is interested, here is the LXF file)

Thanks for your comments ^ ^ And your changes are very interesting since it greatly simplifies the building and makes independant the needed changes to had a HOG and the theses two mods of the gearbox. It is also more compact, even if the vertical 5L axis is only guided by a single fixation.

In fact, I have put a U-joint connected on the 5.5L axle present on the chassis. On the other side, I use a 4L axle, connected on the CV joint connected on the paddle system side. So 1 CV joint and 1 U joint ^ ^

The fixation of both seats has been changed to allow an easy remove of the body. In fact, I fixed them on the body directly, as shown on this photo (in the background, we also see the inside door handle ^ ^):

Hi guys, Here is another mod. I have added a functionnal gear indicator on the dashboard, compatible with having a front hog. The solution is based on a long tooth rack to transfert the position of the gearbox to the front part of the car. Here is a photo of the system (note that the orange 1x2 liftarm should be under the tooth rack, but I changed it after I took the photos : when on top, it can touch 1x5 thin lifarm of the gearbox on 1st gear) and how it can be inserted in the car (sorry, colors are different, since it was my test chassis...) for first gear. Note that the tooth rack penetrates the 4->1 gear solution, but when changing the gear, it goes further, and has no impact ^ ^ and 4th gear : As you can see, the tooth rack is shifted in direction of the front of the car by almost 3L. (To adjust the position of the rack, the 4th gear must correspond to the maximum extend of the tooth rack) Under the chassis, we need to move few pieces to install the tooth rack : And you can see that this solution is compatible with a top HOG : ... and TADA ! when inserted on the final chassis :

I was thinking about the "counter" solution, since our "Ackerman" mods leas to a center of the turning center that is located around the position of the seats : geometrically speaking, we can use the same systems as for the front rear with a small "error".

For crab steering, I am not sure there is a difference. Ideally, all wheels should be parallel, and they are not what ever the building.

Well, in order to reduce the stearing radius, the outer wheels must have a higher radius, and not the contrary. This lead to the geometry depicted in the following picture., and for front wheels, it leads to position the tooth rack in direction of the rear wheels. With 4 stering weels, the centre of turning circle should be between the front and rear wheels, and so, the tooth rack for the front rears should be in direction of the gearbox (and not the engine for the porsche)

Really impressive. I am also working on rear stearing and at the moment, I have no solution compatible with the removable body, and Ackerman geometry (ie, tooth rack in the opposite side of yours, in the gearbox side)

Here are the photos First picture Second picture Third picture This solution is compatible with the gear indicator in the center of the car and removable body (see older posts) EDIT : ... and it allows rear speed and neutral only when the previous one was the 1st gear

Hi Guy, I have updated the mechanical system to avoid having 4 rear gears. It is the same principle, but simplier. Here are few pictures of the system, completely hiden at the end behind the black pannels. Note that the 2 black elements 4173668 should be replace by a single black Technic Cross Block/Fork 2X2. Last, the front and rear speeds are reverse, in the same position as the real GT3RS (but on the sticker of the gear box, we should exchange the position of the D and R letters)

@Boffin Where did you find your additionnal stickers ?

Nobody tried this mod ?

Hi Guys ! Here is another mod for the Porsche : I propose lockable doors, with inside and outside handles. Here is the LXF file to ease the building (I miss one flat pannel since I have not found it in LDD... and in fact it is my first LDD project...). Basically, it uses a 9L arm connected on two balls (the same one used to control the gears) and an elastic so that the door keeps lock by default. The fixation of the mirror is also changed. Here are two photos (without this 9L arm, since... I have to buy new ones...) and details to fix the elastic (it was not present on the first photo since I also need to buy one) and there is no issue with the steering wheel ^ ^ NB : to fix the elastic, we need a lego city screwdriver, fixed inside a small connector

On the original Porsche GT3 RS, all these elements are black, but they are also thiner...

yes ^ ^

Interesting ! Is it expensive for front, rear, and warnings ?

This should be enough to build this mod :) You may need to adjust the 6L axle, depending on the mod you've made on your own car ! You also need to replace few parts on the gearbox, but it is very easy !

Ok, so with my solution, 4th->neutral is not possible. The only solution is 4th->3th, then 3th->2nd, and 2nd->1st, then, you can either go to neutral or reverse.

In fact, only 1st gear can be used for rear, and go to neutral. (ie, neutral is available only if the gear box is at position 1st). Should it be different ?

Done ^ ^

Hi guys ! Here is another mod (aftre the inclined driving wheel, 90° lock, speed indicator, ackerman, removable body, bottom spoiler...). In fact, I wanted to prevent the 4R speeds, but the solutions I saw were not very well integrated in the car. Here, I propose a solution that is almost invisible ! It relies on a 2x1 plate with hook to get the position of the 3L gear shifter ^ ^. Then, everything fits hehind the lateral black flat panels ! The translation is 1L, and a Cross Axle 2M W. Snap W. Fric blocks the rotation of the speed system. Once integrated in the car, here is how it looks like (unlock and lock positions) : Unfortunately, I had to move all the gears and integrate the two 0.6 reductions for the speed indicator. On the following photo, this is how it looks from top: and bottom : Then, the final integration with the lateral panels looks like this (lock and unlock positions): ... and I believe you noticed that the R and D positions do not correspond to the stickers... but to the real 911 GT3 RS ^ ^