Inaccuracy of top speeds

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PeterJB

PeterJB

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One of the things i find most frustrating about GT4 is the innacurracy of the cars top speeds. I like driving fast in the game, but i also like to have a more realistic driving experience. for example, all R34 Skyline's and Merc's excluding the A160, SLK 230, 300SL, SLR McLaren and the racers should be limited to 155mph, as they are in real life. and all the LMP's GT1's and Group C's seem to do 240mph, whereas things like the Audi R8 will only do 205mph in real life and the Bentley Speed 8, BMW V12 LMR and the Mazda 787B all stop at 215mph. Is their anyone else who agrees with me about innacurracy of top speeds?
 
All those cars can be tuned in the Autoset Transmission. I don't know for certain, but some of those could have those top speeds. If not, just set your Autoset to approximately 5, more or less, to limit the top speeds.
 
Hi JB

Whilst I generally agree that striving for a realistic driving experience is the goal, when simulating racing, I think it is not unreasonable to assume that the restrictors in the engine management systems are deactivated.
 
PeterJB
One of the things i find most frustrating about GT4 is the innacurracy of the cars top speeds. I like driving fast in the game, but i also like to have a more realistic driving experience. for example, all R34 Skyline's and Merc's excluding the A160, SLK 230, 300SL, SLR McLaren and the racers should be limited to 155mph, as they are in real life. and all the LMP's GT1's and Group C's seem to do 240mph, whereas things like the Audi R8 will only do 205mph in real life and the Bentley Speed 8, BMW V12 LMR and the Mazda 787B all stop at 215mph. Is their anyone else who agrees with me about innacurracy of top speeds?
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Skylines are not limited to 155mph - Japanese market ones were limited to 112mph (or so I'm given to understand) from the factory, but UK ones never were.

LMP/Group C cars - and all other race cars - will do whatever speed in real life that the gearbox allows, until they hit their aero limit. There's no reason to assume that, just because the BMW V12 LMR didn't exceed speed x in a real-life race at y that this is its maximum speed. Real life F1 cars rarely exceed 210mph, but the BAR007 managed 257mph at Bonneville...
 
PeterJB
One of the things i find most frustrating about GT4 is the innacurracy of the cars top speeds. I like driving fast in the game, but i also like to have a more realistic driving experience. for example, all R34 Skyline's and Merc's excluding the A160, SLK 230, 300SL, SLR McLaren and the racers should be limited to 155mph, as they are in real life. and all the LMP's GT1's and Group C's seem to do 240mph, whereas things like the Audi R8 will only do 205mph in real life and the Bentley Speed 8, BMW V12 LMR and the Mazda 787B all stop at 215mph. Is their anyone else who agrees with me about innacurracy of top speeds?
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I agree with you sort of. I mean, you are correct that manufacturer's often limit the speed of their cars thru a computer or other such device, but in a racing sim i would also like to think said manufacturer would be representing their autos by giving them to us with those limiters disabled.

The part i agree with is a bit off topic: I'm really into technical data cuz i'm a car-freak. This means if the real-life car has stability control and/or traction control, i like to drive my GT4 cars with this enabled for awhile (maybe TCS and ASC on "1") before deciding which to disable and which feels useful to me. I know this is GT blasphemy but it's also amazing how little these controls interfere if my driving stays clean and i have a low setting. Real-life car reviewers like Road & Track usually do the same: drive the car with the devices on and then turning them off (assuming they can be turned off).

That being said, i always wind up disabling the "understeer" portion of ASC but sometimes i'll keep "oversteer ASC" and/or TCS. 💡
 
Picc84
Isent he talking about the fact that Factory vechiles more than almost every one have a speed limited?
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Yes. Many of them do nowadays, i would assume so customers aren't regularly blowing their car's motors to pieces.
 
Another thing i want to know is why certain cars slow down slightly when they reach their top speed and then go back up and do the same thing again, do they do that in real life?
 
Yes they do, that's the game simulating cutting the fuel injection to limit the revs. Many cars behave like that in real life too, on some cars the intervals are shorter, on some longer.

- R -
 
Picc84
Isent he talking about the fact that Factory vechiles more than almost every one have a speed limited?
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I wouldn't have said that they do.

Some of the big-3 German cars (Audi, Mercedes-Benz, BMW) are limited to 155mph, but not all (M3, M5, SLR). The Jaguar XJR is limited to 155mph too, though not the S-Type R or XKR/XKRR. Some Japanese and American market cars have 112mph limiters. But I'd say they're the exceptions, not the rule.
 
Their are also a few that are slower than their real top speeds. for example, the Plymouth Superbird does 130mph in the game, but it does 143 in real life, and the TVR Cerbera Speed 12 does 240 in real, but it does 228 in the game.
 
PeterJB
Their are also a few that are slower than their real top speeds. for example, the Plymouth Superbird does 130mph in the game, but it does 143 in real life, and the TVR Cerbera Speed 12 does 240 in real, but it does 228 in the game.
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Not having driven either in real life, I can't vouch for that - though the Cerbera Speed 12 only had an "estimated" top speed based on the road car's gearing and an estimated power output (having broken TVR's 1000lbft dynomometer).


GT4 is not perfectly accurate, nor does it claim to be. It's worth reading the disclaimer they flash on the screen before the game loads...
 

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