Porsche 911 RS 1972.......Turbo conversion 1/8

[Frah2o]

Once the decal work was finished I moved on to the upholstery work which I knew wasn't too simple....but I did my best.

 

I created the most extensive templates possible to avoid too many joints and I covered the first seat with very fine adhesive flocking.

 

It's not without its flaws but overall it seems pretty decent

 

 

 

 

 

 

 

 

 

[Frah2o]

And finally some photos of the whole

 

 

 

 

 

 

 

 

 

 

[Frah2o]

The second bucket seat went even smoother than the first.

 

Once the seats were finished, which were a nice thought, I moved on to something more relaxing: the 4-point seat belts

 

Before starting I created a bar for anchoring the lumbar belt and 2 plates for the shoulder ones, plates fixed directly to the rear firewall.

 

Taking various Schroth models as an example, I printed the buckles and started assembling.

 

I then downloaded the logo, converted it to png and, using the best possible high quality of my small home printer to the max, I printed the ribbons on adhesive paper.

I then covered them with opaque adhesive tape to dampen the translucent effect and on the other side 0.2mm double-sided tape.

 

And finally assembled everything.

 

 

 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I mounted the lumbars belts as first  and I add the lumbar tensioner adjustment with yellow tape.

 

I Then worked on the sparco hub fitting the central nut of steering column.

 

And finally I assembled everything.

 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

And finally the usual photos of the whole.

 

That's all for this little-big update 😅 ...hello everyone and Merry Christmas🎄 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I'll start with another macro section of this 911 which needs to be completely reviewed.

The front section has various gaps and missing.

with the the imprinting that I'm giving it (mixed Track Day and full street illegal), the front area also needs to be revised quite completely
I started thinking about the tank...and some time ago I would buy a double delta issue.

Before my adventures in 3D I think I would have adopted the Delta tank; now after having viewed various photos of real Porsches I will redesign everything following the ATL tank as an example with some modifications.

Another part to look at: the area of the bulkhead where there is the internal ventilation fan - air box unit which has been greatly minimized.

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I started working on the bulkhead between the front passenger compartment. I welded it, engraved it and inclined it and aligned the upper part with the base of the windshield. 

I then closed the modified bulkhead laterally with 2 plasticard flaps.

In this way I created the space to design the ventilation and fan assembly which I will design following the references of the original spare part.

 

https://www.modellismo.net/forum/attachments/group-build-porsche-911-60-anni-di-un-mito/430298d1704711677-porsche-911-rs-1972-turbo-conversion-1-8-4.jpg

 

 

 

 

 

https://www.modellismo.net/forum/attachments/group-build-porsche-911-60-anni-di-un-mito/430302d1704711677-porsche-911-rs-1972-turbo-conversion-1-8-10.jpg

 

 

 

 

 

 

Edited February 21, 2024 by Frah2o

[Frah2o]

I imported the profile into Fusion360 of the inatake of the future airbox fixed to the base of the windshield.

I then quoted the volumes to design the airbox.

Once I had the airbox assembly printed separate from the fan, I attached it to the vent at the base of the windshield.

Compared to the kit one, it now has a little more verisimilitude to its sister in 1:1

 

 

 

 

 

 

 

 

 

 

 

[JeroenS]

What a project! Somehow I missed all your updates from December so had some catching up to do! Man, this is coming along nicely.

[Frah2o]

Having finished the first part with the fan box I moved on to another big lack: the brake booster - reservoir - master cylinder group of the braking system.

Between references and dimensions allowed by the model I started to design it.

I had to modify the frame as there was a rib that was longer than necessary compared to the 1:1.
Once the area was prepared, I had the opportunity to test the dimensions and dimensions of the new brake booster group.... and after some adjustments and reprinting I arrived at the final group consisting of:

-brake booster support with reservoir bracket and internal linkage that connects to the brake pedal
- brake booster cylinder with vacuum hose connection
- Tank (divided into 2)
- Tank cap
- master cylinder
- circuit pressure sensors

 

 

 

 

 

 

 

 

 

[Frah2o]

Work was also completed on the brake booster, another missing element adopted by all 911s that were turned race-street racing: the front strut bar.

The delta hachette kit helps me with the strut bar as a starting base.

Before proceeding with the same bar, I create the supports to weld to the frame, always referring to the references found online.

Once positioned and welded to the frame, I shortened the bar to size.

A global check of the dimensions and test of the dot cap 5.

 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I moved to work in the "sump" of the petrol tank.

Some time my friend opened the window on the bumper for me for the future air flow for the additional oil radiator.

After studying the coupling between the floor and the tank compartment and bumper, this  is in the middle.

I started working with the dremel and removed the vertical part (but subsequently also the floor part which can still be seen here).

I built the bottom with plasticard, I then imported the image into the program and after having dimensioned it I started to design and finally printed my tank

 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

With the tank in place I had the reference for the battery measurements....wandering around the internet I found some ultra-light batteries from Lite Blox.

After drawing the battery I imported the vector to obtain the logo in low relief.

I then also designed the totally omitted steering column cover.

Once everything was printed I took a photo with the assembly of my personal TK....
DeA uses 12 files to compose this section.....I used 2.5 of them 

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I continue with some progress

Having prepared the tank and battery with the usual 600 sanding process, then primer and two coats of matt black, I moved on to laying the carbon not before having created the templates.
I allowed the decals to dry completely for 24 hours and sealed everything with glossy clear coat

Finally, the tank compartment also received its "new skin"

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I mimicked the glass water tank, I gave two coats of white, masked the upper part and painted the rest blue. I "dusted" the entire tank with the same blue to try to replicate the blue translucency of the upper part of the tank not reached by the liquid level.
Finally, always spraying from afar, I applied various layers of opaque transparent both to opaque and to give a classic textured effect of liquid glass tanks.
I then finished further mattifying with the Tamiya powders. The cap was then painted blue and applied to the tank.

I then continued with the coloring of the upper flange of the tank and the smaller flange of the float for the fuel level sender; once finished I mounted everything on the tank.

I created some cable glands and after painting them I fixed them to the sides of the front uprights

Finally mounted and connected the Lite Blox battery.

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I'll continue with the assembly of all the various details and connections:

- Relay box positioned and front electrical wiring loom connected
- Connected the passage of the front oil cooler pipe
- Positioned the missing casing from the kit that covers the steering column
- The upper front suspension plates are mounted
- Mounted primary fuel pump on the struts bar and connected both the inlet and return supply pipes
- The fuel fill hose and the petrol vapor vent hose are mounted and connected
-Position the windshield washer tank with its bracket and connect the hoses to the pump. Hoses that in the future will connect to the nozzles located at the base of the windshield. Also connected is the electrical wiring that operates the windshield washer pump.

 

 

 

 

 

 

 

 

 

 

 

 

Last job to finish the front compartment: the brake booster-master cylinder assembly and brake fluid reservoir.
The tank was painted matt white and then I worked with Tamiya pigments to yellow it to mimic the color of the dot4
A light general wash is a bit of wheatereing and I placed the assembly in place.

Last job, I connected the hydraulic pipes and the braking circuit pressure sensors

I then mounted mudguards and bumpers to check that the bonnet closed without various impediments.

 

 

 

 

 

 

[JeroenS]

Looks fantastic!

[Frah2o]

Once the fuel tank compartment was finished I concentrated on the front oil radiator.

From the intake on the bumper  I found a lip in the middle which is part of the floor which is exactly in the middle of the area where the future radiator will be housed.

Turned on the dremel and removed the lip from the floor.

 

 

 

 

 

 

 

 

[Frah2o]

Taking inspiration from some 911 RSR Iroc, I created the radiator and tried my hand at welding for the first time.

I then also created the supports and drilled the radiator in various points in order to have various possibilities for positioning the supports

Once everything is assembled and in terms of dimensions and performance i'm quite happy

 

 

 

 

 

 

 

 

 

 

[Frah2o]

I painted The front oil radiator and the inlet and outlet joint

Even if everything will then be hidden and invisible I didn't feel like leaving him there without connection. I added a cable gland and connected the last part of the pipe which connects to the pipes previously mounted in the tank compartment.

 

 

 

 

 

 

 

[Frah2o]

Before focusing on the last major macrogroup(the bodyshell), I already had a front splitter in my mind.

Before painting and with the risk of ruining it, I thought it best to put the worry out of my mind.

I imported the 1:1 scale profile of the area underneath the bumper and created the not too excessive splitter as a "sidewalk" and followed the original profile of the same bumper.

And with this I updated the work progress of my little 911

 

 

 

 

 

 

 

 

 

 

[Frah2o]

Once the splitter was finished I started thinking about fixed rear windows also known as quarter window

With the adoption of the IC I already had a forced air flow in mind that would always remember the rsr system.

I started the work by importing the graphic area on which to work and obtain the initial shape on which to then build the air intake: the fourth one was good.

 

 

 

 

 

 

 

 

 

[Frah2o]

I started with the first version of the air intake which appeared less bulky on the screen than the printed version

In all versions I made a window (to which I will apply acetate) so as not to remove too much inner light and make everything heavier.

I worked on 2 other types of sockets and in the end I opted for the one that looks like a restored RSR (the one by Vasek Polak)

 

 

 

 

 

 

 

 

 

 

 

[JeroenS]

That's some very nice 3D work sir. I'm curious to see the body evolve. 

[Frah2o]

2 hours ago, JeroenS said:

That's some very nice 3D work sir. I'm curious to see the body evolve. 

Hi Jeron, the bodywork will remain standard body no wider wheel arch or others like RWB, just a front splitter.

I like the original slime style orginal body