Here is the transmission tuning screen (Team Forza Viper for those curious).
As you can see on the top left my top speed is estimated to be 202.7mph.
This lines up with how I drive the car in-game.
If you look at the rev range graph however it tells a different story.
According to the graph, I should be hitting 217mph at the top of 5th gear, and somewhere around 250mph for 6th.
This is clearly incorrect.
Hopefully Turn 10 is aware of this and working on a fix, as it makes tuning transmissions a little tricky.
That graph just shows the speed you would be at for a given RPM in a given gear. It’s independent of any other factors i.e. it’s not telling you that you can actually hit that RPM in that gear.
However when I’m on track at 5th gear and 6000rpm, I’m not doing 217mph. I’m fully aware that rolling resistance and drag should drop the “true figure” down but the difference between the graph and the track figures seem too large.
Take the 202.7mph figure for example, when I redline in 6th gear I’m roughly hitting that. I doubt environmental factors would account for a 50mph difference between the graph and the track figure.
you cannot be redlining in 6th gear, because your top speed is 202.7 mph.
you cannot be doing 217mph because your top speed it 202.7mph
The graph says that top redline top gear is about 300mph.
5th gear 217 mph
4th gear about 180
Top speed is 202.7
So top speed is done in 5th gear. 6th gear is too long and the power drops too much and thus top speed drops.
This is an example of a car with its gearing too chuncky (long)
Benchmark Top speed is never wrong except when its better not to shift into a to big of a gear.
You can change the top speed to be higher in benchmark from
power
2, drag
gearing
With gearing for top speed you need to a gear (usually top gear) that has the revs at max power at top speed.
The graph shows he would hit 202mph at under 6krpm in 5th and the car wouldn’t even pull 6k rpm in 6th (which it does)
The 217mph number at the bottom of the graph should read 180mph or something. OP can confirm by letting us know what speed he is doing at 6k rpm in 5th.