1980s & 1990s Gr.A RS500, E30, Supra specs, DTM, BTCC, ATCC

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43,615
Australia
Australia
For anyone looking to replicate Sierras from BTCC, ATCC, DTM. If you find any other specs, please post.

FORD SIERRA RS500 COSWORTH, DTM race car build for season 1988
  • Top speed 300 km/h (186 mph)
  • Acceleration 0-100 km/h: 4.8 s
  • Length 4460 mm, width 1745 mm, height 1450 mm
  • Wheelbase 2605 mm
  • Track width 1750 mm (both front and rear)
  • Weight
  • 120 ltr safety fuel cell (from 1988) with fast refuel connectors
  • Roll gage Matter 25CrMo4
ENGINE
  • Ford Cosworth
  • 4 cylinders, water cooled
  • 1993 cm3, bore 90.82 mm, stroke 76.95 mm
  • two over head cams, four valves per cylinder
  • Compression ratio 7.5:1
  • Max power: 480 hp at 6500 RPM (353 kW)
  • Max torque: 450 Nm at 5300 RPM
  • Engine is original Eggenberger engine
  • Engine management system (ECU) is original Bosch Motronic MP 1.7
GEARBOX AND FINAL DRIVE
  • Getrac 265/3,53,
  • With sand casted shell, mechanical oil pump and oil cooling system
  • Final drive 7,5″ with ZF limited-slip-differential (plate type), electrical oil pump and oil cooling system
  • Tube type drive shafts by Eggenberger
SUSPENSION
  • original magnesium suspension components
BRAKES
  • homologated AP Racing brakes
  • 4 piston calipers
  • 330 mm front disks, ventilated
  • 285 mm rear disks, ventilated
WHEELS
  • 10″ x 17″ center nut BBS magnesium race rims
  • 235/630R17 Dunlop race tyres



Engine: 1993cc 4cyl, DOHC, 16v, turbocharger

Power: 485kW(650 hp) @ 7500rpm

Torque: 678Nm @ 6000rpm

Weight: 1100kg

Gearbox: Getrag 5-speed manual

Top Speed: 300km/h


Specifications from PROJECT CARS 2
Top Speed: 187 mph
Power: 390 HP
Weight: 2292 Lbs

1987
Engine
Bore and stroke90,82 x 76,95
Size1993 cc
Cams2 OHC
Valves per cilinder4
Power370 HP
Details1 Garrett turbo
TransmissionGetrag 5-speed
eFord Cosworth 4 in line
Dijon-1987-6.jpg
Bore and stroke90,82 x 76,95
Size1993 cc
Cams2 OHC
Valves per cilinder4
Power370 HP
Details1 Garrett turbo
TransmissionGetrag 5-speed
Weight1035
Brakes f/rdisc / disc
Wheels f/r8,75 x 16 / 8,75 x 17
Tires

ngineFord Cosworth 4 in line
Silv-1987-6.jpg
Bore and stroke90,82 x 76,95
Size1993 cc
Cams2 OHC
Valves per cilinder4
Power470 HP/6800
Details1 Garrett turbo
TransmissionGetrag 5-speed
Weight1040
Brakes f/rdisc / disc
Wheels f/r8,75 x 16 / 10 x 17
TiresPirelli

1988
EngineFord Cosworth 4 in line
Silv-1988-2.jpg
Bore and stroke90,82 x 76,95
Size1993 cc
Cams2 OHC
Valves per cilinder4
Power520 HP/
Details1 Garrett turbo
TransmissionGetrag 5-speed
Weight1100
Brakes f/rdisc / disc
Wheels f/r
TiresPirelli

 
229
United States
Texas
Groster_0372
My Dad had a five-speed '84 Mercury Merkur XR4Ti with a whopping 175hp. All red with the dual spoiler. It was so much fun to drive. Thought it was pretty fast and when I was 18 challenged my buddy with an 83 Mustang 5.0. That guy gave me five car lengths and was by me before I got out of second gear. I was a little 😳.

Still loved that car.

1669122607546.png
 
43,615
Australia
Australia
The closest I got to one of those was at the NY Auto Show and a drug dealer in my neighbourhood, had a then new black one. :lol:Other than that, being a passenger in a Scorpio, as my brother test drove it.

Back to the RS500. Checking JTCC specs. Seen a couple on YouTube. I’ll update the post.
 

TheCracker

Nothing to see here...
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The closest I got to one of those was at the NY Auto Show and a drug dealer in my neighbourhood, had a then new black one. :lol:Other than that, being a passenger in a Scorpio, as my brother test drove it.

Back to the RS500. Checking JTCC specs. Seen a couple on YouTube. I’ll update the post.
The car that won the 1988 JTCC was an Eggenburger car, so the specs will no doubt be the same. 👍
 

macmark

Premium
68
England
London
kuwahara72
My dad had an original 3 door Cosworth when they first came out. He had some issues with it that Ford couldn't fix so they told him to take it to a company called Mountune to get them to check the ECU. Mountune used to build the engines for some of the race and rally Cosworths. He ended up spending more than what the car cost him having it tuned and it left there with over 340bhp, a full roll cage and fire extinguisher system. I loved that car and got to drive it a few times (without him knowing) before it was stolen from outside where he worked and later found wrapped around a tree in a school field next to a very sharp bend. Unfortunately the roll cage probably saved the car thief's life. I've not played GT7 for a few months but I'll be logging in as soon as this update is released as I've wanted this car in the game since GT 1.
 
146
Spain
Galicia
The RS500 is quite a special car. I saw one many years ago, like 20, in a rally. The car was a former circuit racer and the owner was adapting it for rallying and hillclimbing. When I saw it was converted into LHD.
I also read an article about Hahne's Wurth Sierra RS500, a former DTM car, now restored, but at a certain point it was running a 750 bhp engine for hillclimbing!
 
43,615
Australia
Australia
As for customisation and tuning, roll cages A-C can be fitted, side moulding delete, rear GT diffuser, Wingless, rear lip spoiler, Single whale tail.

Max weight reduction: 989 kg
Max Power: 422 BHP👎
 
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97
floydant
As for customisation and tuning, roll cages A-C can be fitted, side moulding delete, rear GT diffuser, Wingless, rear lip spoiler, Single whale tail.

Max weight reduction: 989 kg
Max Power: 422 BHP👎
What kind of PP is it fully tuned? Approximately
 
135
South Africa
South Africa
johnson_57
What kind of PP is it fully tuned? Approximately
This is all engine and weight reduction upgrades installed. I Don't have racing brakes fitted nor the rear diffuser. Using racing tyres will also raise the pp more.
 

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43,615
Australia
Australia
What kind of PP is it fully tuned? Approximately
I'll have to check when I boot it up. My cars are fitted with racing brakes/pads and RH, I believe they sit between 630-650, without any aero added. Handling is similar to the both E30s.
 
43,615
Australia
Australia
Here’s the max PP without aero. The difference between the PP are Anti-Lag On-Strong and Anti-Lag Off. I’ve set weight to the real world specs. At minimum weight, it rises to 660.54.
1669361662012.jpeg
 
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R1600Turbo

Ligma & Johnson
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R1600Turbo
422bhp is the max you can tune it too? Where do PD magic these numbers from?
This may or may not be a bad thing. It depends on what you are going for in terms of replicating the real car. Do accurate specs matter? Or do lap times matter? I've been playing around a lot lately with replicating GT4 cars, and I am finding that in order to match the lap times that the real life cars put down, you have to significantly reduce the power output of the cars in-game. By as much as 100hp.
 
62
United Kingdom
Bristol
god84
This may or may not be a bad thing. It depends on what you are going for in terms of replicating the real car. Do accurate specs matter? Or do lap times matter? I've been playing around a lot lately with replicating GT4 cars, and I am finding that in order to match the lap times that the real life cars put down, you have to significantly reduce the power output of the cars in-game. By as much as 100hp.

Wow, 100hp now that's interesting. That's a huge drop.
 

R1600Turbo

Ligma & Johnson
Premium
55,166
United States
Starbase
R1600Turbo
Wow, 100hp now that's interesting. That's a huge drop.
Yeah. The P1 qualifying time at Road Atlanta for the Michelin Pilot Cup race in September was a 1:26.348. To match this time in-game the GT4 cars need to be in the 350-360hp range. (around 620pp) For the Camaro that is a 130hp reduction...
 
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43,615
Australia
Australia
Baseline set ups. Anti-lag, Off/On Weak or Strong to adjust PP as needed. Differentials are optional. Especially if having the AI use these cars, as AI use all driving aids.

Widebody, 17” wheels-wide offset
20829204084296400.jpg

D2E897F4-8F5B-4BE6-90F4-08EBE4BFAC40.jpeg

853DD3C7-9536-4F63-9B05-868C50651167.jpeg


Front & rear aero, 18” wheels Wide offset only
20829726894778665.jpg
F0FD90B0-F1AA-4A45-BA2E-16C7C3BEDFE7.jpeg
4173B5FB-FC24-4C61-9904-BCFC83063FEF.jpeg


Normal E30 No aero
FCC696FA-44E3-4B1A-806F-632435D013C6.jpeg
D0855E30-A40A-4180-918F-0F8ECC6AF47B.jpeg


17” wheels wide wheels & offset
20829459499334719.jpg

512ABB8F-5401-4439-B52B-5E2A5A6296ED.jpeg

1669723615797.jpeg
 
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TheCracker

Nothing to see here...
Premium
22,566
South Korea
It/It
GTP_TheCracker
This may or may not be a bad thing. It depends on what you are going for in terms of replicating the real car. Do accurate specs matter? Or do lap times matter? I've been playing around a lot lately with replicating GT4 cars, and I am finding that in order to match the lap times that the real life cars put down, you have to significantly reduce the power output of the cars in-game. By as much as 100hp.
Due to the fact that in GT7 you can lower the weight to less than it was homologated to run at in period, you can get closer to the IRL power to weight ratio for the '87 RS500, which goes some way to evening things out.

Got to find some lap time data and see if there are any tracks in GT7 that they ran on in period... Has the Bathurst layout changed since 87/88? I know Brands Hatch has.
 
43,615
Australia
Australia
Due to the fact that in GT7 you can lower the weight to less than it was homologated to run at in period, you can get closer to the IRL power to weight ratio for the '87 RS500, which goes some way to evening things out.

Got to find some lap time data and see if there are any tracks in GT7 that they ran on in period... Has the Bathurst layout changed since 87/88? I know Brands Hatch has.
Well, The Chase was added in 1987. Bathurst was resurfaced around 2014. Being PD scanned the track around 2012. Can’t recall any surface changes between ‘87 through 2012. You can see in the video below, since that time, tyre bundles been added around the circuit.
Pole lap in 1987 - 2:16.969


Main peoblem is the Finish line. PD still haven’t moved it back. You’ll have to time the lap completion just after the underpass.