Porsche 550 Spyder v2.5

Drive the Porsche 550 Spyder, the legendary "Giant Killer" 1.5L sports car from the 1950s.



NEW

1950's

race-cars

gt

historic

Description

Warning 
Do not distribute this mod other than this RACE DEPARTMENT, share this forum link. and do not modify this mod without author agreement. 
 
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Old forum link 
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Porsche 550 spyder v2.0 updated Sep 15, 2016 
550 body panels have been completed again and they were reborn. Rear cowl, doors around, and front fenders around were improved. Moreover I achieved to reduce 45000 polygons manually in this work. 
I'm reviewing the shape, size, location, and angle of dash knobs, headlights, turnsignals, taillights, and so on. 
To suit the cockpit for new body panel at that time. Bottoms of doors are raised, so I had to manage to adjust cockpit too. Working with the cockpit earned about 10000 polygons in the end. 
Annoying bug at the rear cowl, the shape is wrong, big mistake, I fixed it. 
Many parts of the 550 mod are revamped. 
 
 
Followings are update details in new files. 
- Revamped 3D model 
- Driver position has been moved lower 
- Added new driver's eye position alongside Kunos camera update since version 1.6.0. 
- Adjusted camera views 
- New UVmap 
- Ambient occlusion effect 
- New template for livery 
- Added them to the interior, serial number plate, fuse box, fuel pump, foot dimmer switch, fire extinguisher 
- S1 hill climb model has new front face, tonneau cover, and tubular frame in the cockpit 
- Clipping noise of base model idle sound is fixed 
- Improve sound quality of base model 
- Adjusted volume levels of each sounds. 
- Adjusted the outside of the engine idle sound. 
- Added [HEAD_MOVEMENT] in driver3d.ini 
- New preview screens 
- Some shader adjustments 
 
Physics 
- New V10 Tyre model 
- New gear ratios for Hillclimb version from Porsche standards ratios 
- Simplified setup menus, removed many options 
- Fine tuning of gearbox timings, clutch, aerodynamics, etc.. 
 
New Credits added 
- Base version historical liveries from No.8 to 20 by Patrice Cote 
- Hillclimb version historical liveries from No.5 to 15 by Patrice Cote 
 
Note: On tyre parameters, ideal pressure is 42 psi, optimal temperature range is 40 to 80C for R3, 40 to 90C for R5. 
 
 
Adjusted shader settings and polygon counts of LOD optimization 
LOD A 168100(base) 166843(hillclimb) 
LOD B 90016 5m 
LOD C 37554 24m 
LOD D 4243 48m 
 
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Release notes 
The two physics set. 
The base 1955 Porsche 550/1500 RS (110 BHp, Dunlop R3 natural rubber tires - overheats at 80C, huge slip angle possible) 
And the "s1" version being a late 50's hillclimb prepared version with RSK engine part upgrade, increased displacement (1650-1700cc) and new Dunlop R5 tires (synthetic rubber) slightly wider rubber at the rear. Such a car finished 2nd at the 1960 Pikes Peak with Roger Ward at the wheel. We used dyno curves of a 547 1755cc engine. 
 
 
Porsche 550 physics background 
The 550 was basically the first ever mid-engine road car, so its design is not perfect. Suspension was all based on VW parts. Front was the double torsion bars (a Porsche patent) and rear was a basic swing axle - both causing horrible camber change under cornering. On top of that, the frame was weak and twisted a lot. It has drum brakes and 50's tires less than 100mm (4'') wide. 
However, aerodynamics was very sleek. Weight and inertia are extremely low (under 600kg) and the 4-cam 547 engine was way ahead of its time, revving easily up to 7500 rpm. It would be Porsche's race department workhorse for an entire decade. 
 
 
Overall the car has good handling for its time, but it was notoriously oversteering . Many period pictures show 550's in oversteer. 
Ken Miles (aka "Spyderman") said: "Steering the 550 was very much a matter of very large steering movement to produce the desired result", 
He also mentioned this about the 550 vs 550A (not in the mod currently) “The change in handling is unbelievable. Gone was the excessive oversteer (of the original 550), the RS (550A) was now as forgiving a car as one could possibly wish to meet." 
 
 
 
 
Credits 
Ensyuya (Mitsunari Ishii) : Project lead, 3d Model, textures, animations, shaders, sounds 
Patrice Cote : Physics, UI car history, historical liveries base version from No.8 to 20, hillclimb version from No.5 to 15 
 
Engine sound sources of base model except idling sound : Citytea 
 
Beta tester : Phil E, Maseratialfa, Jon Uyan and Hutch from the CMS Historical racing league (cmsracing.com) 
 
Special thanks to "Toonces" for sharing his hands-on experience and notes on the real 550. 
 
 
 
 
About sounds 
In base model of this Porsche 550 mod, the engine sound sources are from real type 547 engine that Citytea recorded around 2006 at Salzburgring with his old Boss R-1 digital-recorder. He gave us permission to use with pleasure. 
 
Otherwise, the engine sound of S1 upgrade model has been made by Ensyuya from scratch build completely. 
 
Other sound samples are recorded by Ensyuya from real classic VWs or Kunos original ones. 
 
Base model engine sound was made for type 547/1 and 547/2, S1 upgrade model one was made for type 547/3 and 547/4. 
 
 
 
Damage model function fully works 
550 spyder mod got all functions that should be in this mod. All functions Kunos implemented in AC are working properly. 
 
 
 
 
Benchmark of 550/1500 RS Spyder mod (Ensyuya, Jun 27, 2015) 
 
I tried to measure the PC system performance hit of 550/1500 RS Spyder mod, because the development of basic part of this mod has been completed all. I used the official Alfa Romeo GTA for comparison as the benchmark. Generally results are not so bad for this mod. The load of this mod to the system is about 30% heavier than the Alfa Romeo GTA. 
 
 
 
System specification of my PC 
 
CPU Core i3 Clarkdale @3.5GHz 
 
System memory 8GB 
 
GPU Geforce 560GTX with graphics memory 1GB 
 
==================================================================== 
Display 
 
Resolution 1280 x 720 
 
Single Screen 
 
Full Screen 
 
Anisotropic Filtering 4x 
 
Anti-Aliasing Samples Off 
 
World detail Max 
 
Shadow Resolution Ultra 
==================================================================== 
Effect 
 
Smoke generation Normal 
 
smoke in mirrors Off 
 
Enable post - processing effects Default 
==================================================================== 
Reflections 
 
Mirror Resolution Normal 
 
HQ Mirror Reflection Off 
 
Reflection Quality Medium 
 
Reflection Rendering Frequency Medium 
==================================================================== 
Quick Race 
 
Single-make grid (Opponents will use the same car as you) 
 
WEATHER Clear 
 
RACE DURATION 2Laps 
==================================================================== 
 
SPA-FRANCORCHAMPS 
 
 
Porsche 550/1500 RS Spyder 
 
Opponents total = 10 
 
Warning CPU Occupancy > 99% = once for a moment 
 
FPS min = 30 
max = 49 
average = 40+ 
 
 
 
Alfa Romeo GTA 
 
Opponents total = 14 
 
Warning CPU Occupancy > 99% = once for a moment 
 
FPS min = 26 
max = 40 
average = 30+ 
 
 
 
 
==================================================================== 
 
Eastern Creek Brabham 
 
 
Porsche 550/1500 RS Spyder 
 
Opponents total = 9 
 
Warning CPU Occupancy > 99% = none 
 
FPS min = 28 
max = 58 
average = 35+ 
 
 
Alfa Romeo GTA 
 
Opponents total = 13 
 
Warning CPU Occupancy > 99% = 3 times 
 
FPS min = 22 
max = 58 
average = 30+- 
 
 
 
==================================================================== 
 
Silverstone 
 
Porsche 550/1500 RS Spyder 
 
Opponents total = 10 
 
Warning CPU Occupancy > 99% = none 
 
FPS min = 31 
max = 47 
average = 35+ 
 
 
Alfa Romeo GTA 
 
Opponents total = 13 
 
Warning CPU Occupancy > 99% = none 
 
FPS min = 27 
max = 50+ 
average = 35+- 
 
 
 
 
Ensyuya, Patrice Cote, updated Sep 15, 2016 
 
 
If you enjoy this mod and would like to support us, please consider a donation: 
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