Maximum speed and gear ratio problem

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nickg07

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Ballist1x
Does anyone know why when using fully customized transmission I set the top speed at say 224 does my car then proceed to hit the rev limiter is my car only going like 209 MPH. Its not though the car doesn't have the power to hit the top speed its just that the top speed is always less than advertised in transmission settings?

Is this just a bug or do I just have to create a formula that tells me I need to over drive the car to get the actual top speed I want?
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yea, i noticed that too. I usually set my top speed around 251 or so, but my cars usually redline at about 230. I just say increase the top speed to make up for it if you are redlining earlier than you would like.
 
Yes, this likely is a bug. The problem seems to be that PD took a revolution figure higher than the rev limiter of the individual car to calculate top speed. Because of that, the customizable gearbox will always end up "shorter" than the top speed you set (or the car doesn't rev high enough for the given speed, whichever way you like).
 
Lol but I mean having to guess that I need to add up to 30 MPH extra particular annoying in a race series especially in b spec when my gut tops out on the straights and gets overtaken by everyone. So frustrating.
 
It's not a bug. The transmission's maximum speed allows for say, 255mph, but this is merely the speed in which the transmission can produce, out on the track, you have friction, wind resistance, drag, weight would play a factor, incline/decline, etc.

So no, not a bug, although it's not incredibly handy to jusge on.
 
The Interceptor yes its like did no one at PD actually play the game and had to smash something because. B spec can be annoying enough that when in NASCAR or fgt championship where the win is not guaranteed the races are so long and if you set it up wrong the pack might leave you for dead meaning you might have to start the entire event again?

If anyone at pd actually used full custom transmissions how could this not be fixed yet in 1.05?
 
No formula or system is really necessary, just add 20-25mph to the top speed that your car reaches on the longest straight (just before you have to brake), making sure that you enter onto that straight at maximum speed.

Sometimes on some tracks, this maybe different as powerfull cars on long straights, with a slipstream (or 2) can increase their top speed by more than this amount.

You just need to learn what to do where and adapt and adjust to that situation, then change the gear ratio / speed accordingly.
 
uncle_hayley_j
It's not a bug. The transmission's maximum speed allows for say, 255mph, but this is merely the speed in which the transmission can produce, out on the track, you have friction, wind resistance, drag, weight would play a factor, incline/decline, etc.

So no, not a bug, although it's not incredibly handy to jusge on.
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You're correct, but what they're discussing is when the are actually hits the limiter at a lower speed than displayed.

I just assumed that the top speed was calculated on the gear ratio and didn't consider the limiter which comes in about 1000 RPM lower than the engine can actually spin. If the limiter were non-existent, the calculations would be correct.
 
Uncle Hayley I'm sorry you don't understand the issue. Its nothing to do with downforce or power. Its like the Interceptor said its like the rev limit they base the top speed is higher than the car engine goes.

Try with a NASCAR can easily do 230 MPH with its power. Set top speed to 220 and you tell me what your car its wrong.
 
This wouldn't be so much of a problem if there were a "free test drive" mode before the race, but there isn't.
 
The Interceptor yes it doesn't allow you to test so I have to guess my setting anyway then add an imaginary number trying to balance acceleration and top speed and add 10? 20? Or 30? On top?
 
nickg07
Highlandor it's not ideal though is it to guess what's the top speed and adding 30 I mean come on.
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It's not that simple I'm afraid. How far off the "maximum speed" setting actually is depends on several things:

  • the overall length of the gearbox (so basically whether you have a fast or slow car)
  • the size of the rev range between the rev limiter and the end of the rev scale (the bigger this is, the more your setting will be off)
  • the engine characteristics (if your torque curve dives at high revs, you might want to set up the gearbox differently)
Apart from that this simple-to-fix bug shouldn't exist, a test drive or qualifying function would help to work around it. Gearbox tuning is something which should be done for each track individually (to have the right gear with the right revs at the right time), and that PD robbed us of this opportunity is bad enough. Then having to guess what might be okay-ish on top of that is even worse.
 
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nickg07
Highlandor it's not ideal though is it to guess what's the top speed and adding 30 I mean come on.
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I did not say guess your top speed, how to calculate your top speed for each car on each track is very easy and the same for everyone. I have already told you how to do this.

What did I say to you in your other thread? There are easy solutions to these problems, you are going to have to use these solutions until Polyphony decide to make the relevant changes, that's even if they do.

We are all very aware GT5 is not perfect, there have been many discussions and threads on this since the first few days the game came out, it's those threads you should be posting on.

If your problems did not have any possible solutions whatsoever in the game, then fair enough, I wouldn't be saying this. But there are solutions to your problems, but you don't seem to be interested in these, just reposting whinging ''GT5 isn't perfect'' threads.
 
Lol :P This is a funny thread :P

Personally I haven't had a problem with this feature, mainly because, you go out and test it before you get into race events, quick run on each track, see what you hit, in a straight line Bob is generally quite close to you anyway so use what you used when you did the events yourself.

I generally take the speed that I hit, add a bit more on, and then estimate what that speed is in the transmission. (You add a bit more on so you don't hit the limiter as quick when you are drafting).

I think in real life the top speed settings in the transmission are also trial and error to a degree, I'm sure these things do get changed once or twice during every race preparation.
 
IRL, top speed is a precise calculation ... it's simple when you know the gearing and rev limit. But, gears are changed often for each track. What the changes are for (top speed, acceleration, shift points on the track, etc.) will vary per track.
 
Highlandor sorry no offense but can you quote where you told me how to calculate the top speed in b spec mode please without having to say laoad the event in a spec do practice lap, write it down and then keep safe these pieces of paper for bspec mode?

That's just like trial and error and exceptionally long winded. Tell me how to calculate and ill bring a spare calculator home from work and get er.. number crunching?
 
It's not rocket science to work out roughly (to within 5-10mph) what the correct gearing needs to be for each car for each track.

It's not that difficult to get the top speed about right with a custom gearbox, or to make an improvement on standard gearbox's top speed, especially when some cars have crazy gear ratio's for top gear, which in real life is used for efficient motorway cruising rather than performance on track.

When you're racing, sometimes you might get a slipstream, or make a mistake coming onto the main / longest straight (or part of the track where you hit top speed) or get held up by a back marker - all of these will affect your top speed by a few mph/ kmph.

I just don't think having the gearbox set exactly to the correct mph is worth tearing your hair out for, aslong a generally it's set to within 5-10mph for most cars on most circuits, it's going to be an improvement over the standard 'box.

If, however, everyone was using the same car on the same track and the performance of each car was equal, then yes, getting the top speed absolutely spot on would be alot more important.

But when you're talking about a 1000 different cars with 70 different tracks (and multiple different tuning options) I just think going for something general is the way to do it. Aslong as you're not bouncing off the rev limiter or you're 1000rpms or more short of the red line, then it's about right.
 
Of course it is not endlessly complicated to set up the gearbox (although PD could have made this easier still), but...
  • a fully customizable gearbox should be fully customizable
  • the maximum speed you set should be the maximum speed you can obtain
 
Drag slows the car down a lot. If you get into a draft the car should accelerate to near it's top speed on the transmission. Also the condition of the engine can cause it to lose power before the rev limiter.
 
Main problem i have with the custom tranny is the fact that on some cars it obliterates the sound of the engine utterly. After that then it is the issue that we cannot tune individual gears.
 
skywolf23
Main problem i have with the custom tranny is the fact that on some cars it obliterates the sound of the engine utterly. After that then it is the issue that we cannot tune individual gears.
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Some of my friends have got custom gearbox's in their cars with straight cut gears (I haven't a clue what this means), and the noise is unreal.

Went to a car show in a car with one of these boxes fitted, went home in a different car - no way was I having that in my ear for 3hrs. But, his car was stripped out though.

Maybe this is what Polyphony were trying to recreate..??
 
Possibly but it is annoying as all heck when you just want to lengthen out the gearbox on your ferrari a bit cause you added some hp and the semi decent engine sounds are suddenly replaced by a high pitched dentists drill. So your only option is to keep the stock box and loose much of the value of your extra 50 bhp.

Really maybe we need semi racing and full racing trannys with adjustment options that actually work say the semi one you can adjust the tranny the way you can now and not get the stupid sound of the custom tranny, and then they can fix the custom tranny and you can adjust all the individual gears and etc and live with the dentist drill.

But cars that come prefitted with a custom tranny also do not seem to have the sound issues that if you take one and slap it on your 599, and cannot hear any hint of the engine after that. I mean i was going for a 599 gto in bhp and top speed and etc and the tranny is just unbearable.
 
skywolf23
Possibly but it is annoying as all heck when you just want to lengthen out the gearbox on your ferrari a bit cause you added some hp and the semi decent engine sounds are suddenly replaced by a high pitched dentists drill. So your only option is to keep the stock box and loose much of the value of your extra 50 bhp.

Really maybe we need semi racing and full racing trannys with adjustment options that actually work say the semi one you can adjust the tranny the way you can now and not get the stupid sound of the custom tranny, and then they can fix the custom tranny and you can adjust all the individual gears and etc and live with the dentist drill.

But cars that come prefitted with a custom tranny also do not seem to have the sound issues that if you take one and slap it on your 599, and cannot hear any hint of the engine after that. I mean i was going for a 599 gto in bhp and top speed and etc and the tranny is just unbearable.
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Yeah, I agree, the tranny options suck big time, to be honest I only fit a custom gearbox when it's absolutely necessary. Some of my cars still got the standard tranny in them. If the individual gear ratio's were available to be tuned / adjusted, then definately I'd go with the custom one, but as it stand, it's a bit pants (which is English for crap).

EDIT:

599 gto - mmmmm, if only that car was in this game..
 
The top speed when you're running by yourself is lower than your top speed in the draft. The top speed in the tuning menu is the top speed in the draft.

Want an example? Try using the X1-Vettel. Its top speed when running by itself is 280ish, but when drafting another x1 its top speed is exactly 311mph.
 
jnino92
The top speed when you're running by yourself is lower than your top speed in the draft. The top speed in the tuning menu is the top speed in the draft.

Want an example? Try using the X1-Vettel. Its top speed when running by itself is 280ish, but when drafting another x1 its top speed is exactly 311mph.
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That's already been explained on this thread...??
 
nickg07
Does anyone know why when using fully customized transmission I set the top speed at say 224 does my car then proceed to hit the rev limiter is my car only going like 209 MPH. Its not though the car doesn't have the power to hit the top speed its just that the top speed is always less than advertised in transmission settings?

Is this just a bug or do I just have to create a formula that tells me I need to over drive the car to get the actual top speed I want?
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Remove the ecu tuning on the car. The ecu tuning is bugged and ADDS ~300 rpm to the rev limiter displayed in the tuning menu/trans menu, but REDUCES the cars actual rev limit by ~300 rpm while playing.
 
For 300revs (if thats true which I seriously doubt) you'd be losing performance on the rest of the lap so that wouldn't be worth it at all
 
drago6817
Remove the ecu tuning on the car. The ecu tuning is bugged and ADDS ~300 rpm to the rev limiter displayed in the tuning menu/trans menu, but REDUCES the cars actual rev limit by ~300 rpm while playing.
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I tried this yesterday, but I'm afraid it is no solution. You are right in saying that the ECU tuning upps the maximum revs displayed in the transmission setting menu, but the "maximum speed" setting you choose remains equal. The only thing that happens is that the game slightly alters the gearing, but the car tops out at exactly the same speed as before, and still below the set limit.
 

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