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View Full Version : Top speed and oval lap time test. Must read.



bezzy3004
25-10-2015, 17:14
Hi all. I set out to establish how accurate the top speeds are in game for all cars i currently have and at the same time record lap times for each
i have the pc version of Project cars and the track used was the Oval test track one complete lap from point to point times recorded externally with stopwatch so give or take hundreds of a second.
All the cars were stock specification with auto transmission and real life assists on.
I was expecting the speeds to match what each car is listed in the specs details, but as you can see something is very wrong only 1 car has exact top speed the Audi R8 LMS Ultra
The Caper Monterey Stockcar is 65mph slower on track than the claim in the specs. Why? How on earth can a Ford Escort RS1600 do 151mph when its top speed is 116mph!?
The fastest around the oval is listed 1st which was the P1 at 1.10.50
each car is listed then on track speed then claimed speed followed by mph difference then the lap time.


McLaren P1 243 227 16 1.10.5
McLaren F1 232 240 -8 1.12.18
Pagani Huayra 219 231 -12 1.15.78
Ruf CTR3 212 227 -15 1.16.13
W Motors Lykan HyperSport 209 245 -36 1.17.11
Ruf RT 12R 213 230 -17 1.17.5
Gumpert Apollo S 210 213 -3 1.17.53
Formula A 198 214 -16 1.17.66
Pagani Zonda R 203 218 -15 1.18.12
Sauber C9 Mercedes 196 254 -58 1.18.71
Bentley Speed8 LMGTP 192 203 -11 1.19.46
McLaren 12C 205 207 -2 1.20.4
Ruf RGT-8 204 206 -2 1.20.83
Lotus 98T Renault 191 217 -26 1.21.65
Ford Mk. IV 197 223 -26 1.22.12
Mercedes-Benz SLS AMG 209 212 -3 1.22.96
RWD P30 LMP1 190 212 -22 1.23.09
McLaren F1 GTR (1997) 184 240 -56 1.23.29
Mercedes-Benz CLK-LM (1998) 190 199 -9 1.23.37
Audi R18 TDI LMP1 188 206 -18 1.23.76
Marek RP339h (PM 06a) LMP1 187 210 -23 1.23.77
BMW V12 LMR 193 218 -25 1.23.9
Aston Martin DBR1-2 190 212 -22 1.24.49
Audi R8 V10 Plus 200 207 -7 1.25.37
Mercedes-Benz SLS AMG GT3 185 180 5 1.26.9
Ford Mustang Cobra SCCA TransAm 179 214 -35 1.27.03
Marek RP219D LMP2 176 193 -17 1.28.15
Formula B 172 188 -16 1.28.43
Aston Martin Rapide S Hydrogen 191 187 4 1.28.8
McLaren 12C GT3 173 181 -8 1.28.8
RWD P20 LMP2 176 195 -19 1.28.82
Oreca 03 Nissan 176 190 -14 1.28.89
Ford Sierra RS500 Cosworth Gr.A 185 187 -2 1.29.07
Ruf RGT-8 GT3 174 173 1 1.29.2
Mercedes-Benz C-Class Coupe DTM 170 190 -20 1.29.56
Aston Martin Vantage GT3 179 189 -10 1.29.67
Alpine A450 175 192 -17 1.29.86
Audi R8 LMS Ultra 175 175 0 1.29.90
Lotus 49 Cosworth 170 194 -24 1.30.01
Ford Mustang Boss 302R1 180 187 -7 1.30.86
Aston Martin Vantage V8 GTE 174 187 -13 1.31.40
Radical SR8 RX 166 175 -9 1.31.72
Caterham SP/300R 168 189 -21 1.31.77
BMW M1 Procar (E26/1) 169 207 -38 1.32.43
Ariel Atom 500 V8 170 185 -15 1.32.46
BMW 1 M Coupé*(E82) 182 155 27 1.32.69
BMW 320 Turbo Gr.5 (E21) 172 175 -3 1.32.69
BMW Z4 GT3 168 175 -7 1.33.49
Lotus 72D Cosworth 165 183 -18 1.33.62
Ginetta G55 GT3 164 179 -15 1.33.64
Bentley Continental GT3 168 170 -2 1.33.67
Aston Martin Vantage GT4 173 188 -15 1.33.75
Caper Monterey Stockcar 165 230 -65 1.33.97
Mercedes-Benz A45 AMG 175 192 -17 1.34.5
BMW M3 GT (E92) 164 181 -17 1.34.6
Ford Capri Zakspeed Gr.5 167 180 -13 1.34.85
Lotus 78 Cosworth 159 185 -26 1.35.12
250cc Superkart 161 138 23 1.35.54
Palmer Jaguar JP-LM 159 166 -7 1.37.31
BMW M3 Gr.A (E30) 165 182 -17 1.37.35
Mitsubishi Lancer Evo X FQ400 161 189 -28 1.38.33
Ginetta G55 GT4 157 166 -9 1.39.15
FormulaC 152 196 -44 1.39.17
Mercedes-Benz 300SEL 6.8 AMG 161 178 -17 1.39.27
BMW M3 GT4 (E92) 163 172 -9 1.39.42
Mercedes-Benz 190E 2.5-16 DTM 156 187 -31 1.39.61
BAC Mono 156 178 -22 1.39.81
Caterham Superlight R500 155 162 -7 1.40.57
Ford Focus RS 161 167 -6 1.41.41
Ariel Atom 300 Supercharged 153 161 -8 1.41.83
Renault Mégane R.S. 265 159 162 -3 1.44.13
Radical SR3 RS 144 161 -17 1.44.33
Ford Escort RS1600 151 116 35 1.46.26
Audi A1 Quattro 155 152 3 1.46.28
Formula Gulf 1000 142 163 -21 1.47.65
Mercedes-Benz 300SL (W194) 145 143 2 1.51.08
Renault Clio Cup 142 151 -9 1.53.08
Formula Rookie 132 146 -14 1.55.24
Ginetta G40 Junior 126 132 -6 2.05.93
Caterham Seven Classic 113 120 -7 2.14.15
125cc shift Karter 92 93 -1 2.41.2
Aston Martin DBR1 300 161 165 -4 NA

Mangoat
25-10-2015, 17:16
Default setups?

ibby
25-10-2015, 17:25
Now do the same with their setups adjusted for top speed. ;)

Dunno about the Ford Escort but there were different versions of the car. Normal specs are the topspeed written in game. Rally version had 140mph topspeed etc.
Perhaps they first did the normal version then another but didn't update the specs on the info screen.

bezzy3004
25-10-2015, 17:37
Default setups?

Yes default setups

bezzy3004
25-10-2015, 17:49
Now do the same with their setups adjusted for top speed. ;)

Dunno about the Ford Escort but there were different versions of the car. Normal specs are the topspeed written in game. Rally version had 140mph topspeed etc.
Perhaps they first did the normal version then another but didn't update the specs on the info screen.

Setting the car up for top speed wont explain why some cars are much slower or much faster, would it? i will try that though, these top speeds should be exact as the devs have modeled every detail, physics calculations are immense, what with i think its 3 engines calculating the physics for the tyres alone and 600 calculations per second determining what the car should be doing on track. And with pro drivers getting close to exact times real life and in game these basic details should be spot on

ibby
25-10-2015, 18:19
Be aware there's also a camber fix due to arrive which might make top speeds higher again for cars with lots of minimum camber in the setup screen.
So might not make much sense to test yet.

Mahjik
25-10-2015, 18:50
The top speed specs are just theoretical estimates. The specs are only exact on things which can be exact like absolute measurements (i.e. vehicle weight). Top speeds will vary based on many things, including elevation since that will affect how much power the car will be making.

Roger Prynne
25-10-2015, 18:59
Track temp, time of day and year could also factor in as well maybe?

Gobymage
25-10-2015, 19:09
I have already drove at 254 miles/hour (409 km/h) with McLaren P1 :D

bezzy3004
25-10-2015, 20:27
Track temp, time of day and year could also factor in as well maybe?
I doubt that would make a vehicle 65mph slower in the case of the monterey. I can understand a few mph either way but we are talking about 30 40 50 mph in some instances. I am disappointed, i want this game to be the best most accurate driving simulator available, i am a huge fan i am not trying to intentionally pick faults i was hoping to praise the accuracy. As for the chap doing 254mph in the p1 have not a clue unless he adjusted the gearing as i left it stock if hes on the same platform and track how can that be?

LukeC
26-10-2015, 01:20
I doubt that would make a vehicle 65mph slower in the case of the monterey. I can understand a few mph either way but we are talking about 30 40 50 mph in some instances. I am disappointed, i want this game to be the best most accurate driving simulator available, i am a huge fan i am not trying to intentionally pick faults i was hoping to praise the accuracy. As for the chap doing 254mph in the p1 have not a clue unless he adjusted the gearing as i left it stock if hes on the same platform and track how can that be?

Isn't the Monterey only loosely based on a 90s stock car? The question you should be asking is how accurate are the top speeds listed in the car descriptions? In other words how were they atrived at? For example, I remember reading an article about the mclaren f1 where Gordon Murray said the car would do 360 kph based on his calculation, but of course depending on gear ratios.

Another example: the top speed listed for Michael Schumacher's Ferrari f2002 is something like 350 kph because that's what it did at monza, which gives the highest top speeds for f1 cars. However, with an infinitely long straight and long gear ratios and minimal aero, that car would probably do close to 500 kph.

The point is, the top speeds listed in various sources were not all obtained using 100 percent consistent methodologies, and are therefore not always a reliable indicator of a given car's performance.

CPU M Rossi
26-10-2015, 02:01
I doubt that would make a vehicle 65mph slower in the case of the monterey. I can understand a few mph either way but we are talking about 30 40 50 mph in some instances. I am disappointed, i want this game to be the best most accurate driving simulator available, i am a huge fan i am not trying to intentionally pick faults i was hoping to praise the accuracy. As for the chap doing 254mph in the p1 have not a clue unless he adjusted the gearing as i left it stock if hes on the same platform and track how can that be?
ummm the gearing for the Caper stock car tops out at 165 mph with the default gearing now if you adjust the final gear you can get 200+mph out of it easily

EvoM3
26-10-2015, 09:22
Your testing is very flawed.

Perhaps your logic can be applied to road cars however race cars are a different ball game. Race teams run different aero packages and final drive ratio at every track so the default setup is unlikely to give you the highest possible top speed.

The stock setups are designed to be broad enough to work at a tight track and flexible enough to work on a fast track and were never intended for high speed.

bezzy3004
26-10-2015, 09:41
Your testing is very flawed.

Perhaps your logic can be applied to road cars however race cars are a different ball game. Race teams run different aero packages and final drive ratio at every track so the default setup is unlikely to give you the highest possible top speed.

The stock setups are designed to be broad enough to work at a tight track and flexible enough to work on a fast track and were never intended for high speed.

Ok points taken guys yes i did get more speed by adjusting the ratios, so looks like this is what is the issue. Hey it was fun testing though, and was very pleased to see my all time favourite supercar the Mclaren F1 remember this is a naturally aspirated vehicle (no turbo's or superchargers) at no2 on the list, yes i know it would be trounced around a normal circuit but no2 around the oval im a happy man.:D

Beatminister
26-10-2015, 20:44
Ok points taken guys yes i did get more speed by adjusting the ratios, so looks like this is what is the issue. Hey it was fun testing though, and was very pleased to see my all time favourite supercar the Mclaren F1 remember this is a naturally aspirated vehicle (no turbo's or superchargers) at no2 on the list, yes i know it would be trounced around a normal circuit but no2 around the oval im a happy man.:D
I´m doing basically the same (without the lap timing) for a while. I didn't compare the speeds given in the info yet.
You can find my list here: http://http://forum.projectcarsgame.com/showthread.php?40155-Mojave-top-speed!&highlight=mojave+top+speeds

There are a number of factors playing into reaching top speeds.
1. Downforce (wings)
2. Gear and diff ratio
3. Tire pressure
4. Cooling ducts
5. Air limiter (only a few cars have that)
6. but at last, finding the perfect hight in the wall, and give it enough time. Some (Mustang GT for example) need more than 1 lap to reach top speed.
Some cars have such weird gear steps that they cannot reach their highest speed. GT3s for example could pull much more than the gears allow. The Lykan's 7th is too long, it starts dieing on you if you use it. The next smaller ratio is equal to the 6th. The Aston DBR1/300 is a widow maker over 240kph. Oh well, there are a lot of things to find out...