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Porsche 911 RS 1972.......Turbo conversion 1/8 Options
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frah2o
#61 Posted : 11 September 2023 11:45:34

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In the last 2 weeks on vacation with my daughters (therefore little vacation Mellow ) I still found the time to go on with my 911 Turbo.

I designed and engineered various components missing from both the original engine and my turbo version trying to follow the engine of the RSR
These include the "extensions" of the heads with the addition of the negative turbo writing and the lubrication ducts.

Various elements of the ignition (such as the direct coils on the spark plugs imitating the Audi R8) and of the injection including such ECUs and various control units.









































Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#62 Posted : 11 September 2023 11:47:40

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With the water/vinyl method and a single layer of paper towel I wanted to reproduce the rough and raw texture of the carbon for the engine conveyor.

2 coats of matt black and a final coat of matt clear













Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#63 Posted : 12 September 2023 13:31:00

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I'll continue with little updates

Mounted heads and lubrication ducts and painted....with the ducts I used pale gold to recall the tropicalization of the barrels.

As I proceeded my eye kept falling on the timimg covers. DeA divides them in half....which for the original engine are camouflaged and can be fine....for my turbo with the engine in sight they are not exactly the best.

I cut away the printed metal part and began to redesign them by doing various intermediate printing tests for the surfaces and then definitively printing them... a little more pretty.























Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#64 Posted : 12 September 2023 13:44:24

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With the drill used as a lathe and the small files as cutting edges I tried to give a shape more similar to the original and less angular.

I then eliminated the half-pulley printed on the fan and returned to the PC to redesign the entire pulley.

With aluminum tape I wanted to reproduce the metallic effect of the belt that fixes the fan conveyor to the engine crankcase... it seemed plausible to me... but I was rejected... and I redid the new band which even if it worked better....I was rejected for some out-of-scale elements.

Finally, paint and assemble the 6 individual ignition coils/spark plug wires























Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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Markwarren
#65 Posted : 12 September 2023 21:57:24

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Excellent work, love the mods you’ve done. The Mars 3 is a great little machine, I bought one when they first came out and recently bought the pro version. The level of detail they produce is shown in the parts you’ve produced.
Also love what you’ve done with the paper towel. Love Love

Mark
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frah2o
#66 Posted : 13 September 2023 09:06:38

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Markwarren wrote:
Excellent work, love the mods you’ve done. The Mars 3 is a great little machine, I bought one when they first came out and recently bought the pro version. The level of detail they produce is shown in the parts you’ve produced.
Also love what you’ve done with the paper towel. Love Love

Mark



Thanks Mark, just wondered of print quality of this little Mars 3. It's very helpfull for these custom project. BigGrin
Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#67 Posted : 13 September 2023 09:18:49

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Before to reamde the new fan strap, I moved on to the centerpiece of this whole soup of topics: the turbo.

I filled, redid two welds, coat of primer, aluminium, matt black and matt transparent for the turbo chassis - bracket.

I covered the shield of the hot side with thermal cloth tape and then with punch&die I "printed" some bolts for the cold side.

Before applying the bolts, filled, sanded, metal primer and then a mix of flat aluminium, chrome silver and then Tamiya powders to give the turbo a little more life.

Now it seems more turbocharged and less keychain than it was at the beginning















Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#68 Posted : 13 September 2023 09:26:02

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I redesigned the fan strap by resizing the lugs and closing bolt.

I already knew that trying to improve the collectors of the kit would be difficult, after two unsatisfactory tests, I redesigned them too

I then started assembling all the missing and completely omitted details
- right side cams lubrication duct
- left side cams lubrication duct
- oil pressure sensor
- various nuts and bolts of the air conveyor

















Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#69 Posted : 15 September 2023 09:18:08

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I continued with job on the top of the engine

With the usual water/vinyl way and a single layer of paper I covered the last part of the engine oil conveyor

I then worked on the injector rails; Once the injectors were fixed, I added the fitting for the fuel non-return flow on the side.

I painted the flutes with stainless grey, matt blue injectors and the fixing base to the monobloc in yellow and the fuel delivery connection in metallic blue

















Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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frah2o
#70 Posted : 18 September 2023 09:39:46

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I continue the job with some missing sensors such as:
- oil temperature sensor
- Engine phase sensor

Once positioned in their place I then painted and fixed the actuators or throttle servos on the intake manifolds.















Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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Markwarren
#71 Posted : 20 September 2023 10:30:02

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Looking very nice, some nice work going into this.Love

Mark
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frah2o
#72 Posted : 21 September 2023 09:11:39

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Markwarren wrote:
Looking very nice, some nice work going into this.Love

Mark



Many thanks Mark

I've almost reached the end of the first macro part of building.

I finished the Wastegate and its bracket. I added the clamps that I had left out and the joint at the top for the future pneumatic hose that will connect to the plenum or manifolds.
I followed the color of RSR to paint the wastegate.

I then fixed the standard oil radiator in its original position: In the future The oil flow circuit will be worked for a bypass valve for the future, additional front radiator.

I then finished the work on the timing covers, adding the studs and finally (after having coupled the engine) I fixed them in position.

Overall I'm quite satisfied, I need to finish lubricating the turbo core assy and mount the belt an some details.....my 2.7 turbo is almost ready.







































Collection active: Lotus 97T, Audi Quattro A2, Vw Maggiolino '60

Work in progress: Porsche 911 RS Turbo

Completed model: Delta WRC Martini, Mclaren MP4/4, Golf GTI 1/8 Tuned
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Markwarren
#73 Posted : 21 September 2023 09:56:44

Rank: Super-Elite

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Groups: Registered, Administrators, Global Forum Support, Moderator, Forum Support Team, Official Builds

Joined: 04/01/2016
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