[PLife]

Thought this is interesting… The ratios are so short on the ZF even compared to the manual (which has normal ratios in my opinion). >10% shorter 1st gear, >20% shorter gears 2-4.

[PLF69]

What's your point ?

[PLife]

Originally Posted by PLF69

What's your point ?

Nothing specific. These are the top speeds in each gear based on ratio calculations and thought people might find it informative. The short ratio zf was surprising as it might be a bit too short

[PLF69]

Originally Posted by PLife

Nothing specific. These are the top speeds in each gear based on ratio calculations and thought people might find it informative. The short ratio zf was surprising as it might be a bit too short

Ok, thanks for posting the info.

There is more to the final experience than the what we see doing the number crunching, the overall feel of a car can be very different with just a simple ratio change.

I attended a 2 day track event last weekend with my new to me M340i wich is equipped with the ZF8 (probably similar to the one in the M3) and I did not feel any disconfort with the gearing. I remember not liking the gearing in my M235i. I also drove a Manual M2 and a DCT on the same track, same day and the feeling was quite different.

I also often fall into spec hunting and over-analyzing but when I finally test drive and do serious driving with the cars I often realize that the perspective I had in mind is a lot different than what I feel in reality.

[PLife]

Originally Posted by PLF69

Ok, thanks for posting the info.

There is more to the final experience than the what we see doing the number crunching, the overall feel of a car can be very different with just a simple ratio change.

I attended a 2 day track event last weekend with my new to me M340i wich is equipped with the ZF8 (probably similar to the one in the M3) and I did not feel any disconfort with the gearing. I remember not liking the gearing in my M235i. I also drove a Manual M2 and a DCT on the same track, same day and the feeling was quite different.

I also often fall into spec hunting and over-analyzing but when I finally test drive and do serious driving with the cars I often realize that the perspective I had in mind is a lot different than what I feel in reality.

Completely agree. My 718 spyder has been criticized by literally every single car reviewer for having obscenely long gears in the manual. I actually find the long gears super enjoyable and never lack for power. In fact the manual is faster on a roll than the pdk if you shift fast enough (started a dragy thread on rennlist confirming this). Whereas on my R8 v10 plus the gears were obscenely short and i hated it, occasionally found myself banging off the rev limiter in manual race mode unless i had a triple venti macchiato

[frankiebones]

Originally Posted by PLF69

What's your point ?

i find this to be very helpful. i like to know top speed/gear as a 6MT driver.

[PLife]

Originally Posted by frankiebones

i find this to be very helpful. i like to know top speed/gear as a 6MT driver.

Thanks man. Me too. I calculated these using the 20 in rear wheel tire diameter so if you find that they are off please let me know and i can update it. But it should be pretty close

[speedyman]

Originally Posted by PLife

Completely agree. My 718 spyder has been criticized by literally every single car reviewer for having obscenely long gears in the manual. I actually find the long gears super enjoyable and never lack for power. In fact the manual is faster on a roll than the pdk if you shift fast enough (started a dragy thread on rennlist confirming this). Whereas on my R8 v10 plus the gears were obscenely short and i hated it, occasionally found myself banging off the rev limiter in manual race mode unless i had a triple venti macchiato

The across the board criticism of the 718 Spyder and GT4 is correct and that is why there is uniform agreement throughout the automotive press. The gearing is waaaaay to long for the street where these cars will see the majority of their miles regardless of the marketing hype about them being track/race cars. Might as well put an old 2 speed Powerglide in there. LOL.

[PLife]

Originally Posted by speedyman

The across the board criticism of the 718 Spyder and GT4 is correct and that is why there is uniform agreement throughout the automotive press. The gearing is waaaaay to long for the street where these cars will see the majority of their miles regardless of the marketing hype about them being track/race cars. Might as well put an old 2 speed Powerglide in there. LOL.

If you wanna drive speed limit this is true. But keep that car over 6k and youre hauling balls. With long tube headers it keeps up with a .2 gt3 and wakes up dead people in the process. Also you dont need to shift that much since the top speeds are approaching the limits of coordination.

[SwissG80]

What I dislike about the ZF GS6 is that the ratios are just terrible. The gap from 1st to 2nd is huge, I feel it really puts the engine out of the powerband (even though said powerband is huge), even when shifting at redline. Similar story with the 2-3 shift.

And then the 4th, 5th and 6th gears are much closer - too close in fact - which really doesn't make sense on a turbocharged car with such a broad powerband! For a high revving naturally aspirated engine like the E92's S65 (which used the same exact gearbox and ratios afaik, as did the F80), sure.
In my mind, the old Getrag 420G in the E46 M3 (and the EUDM 3.2 E36 M3) had perfect ratios. Another excellent set of ratios comes from Honda's K-Series (Type R / Si) gearbox.

And this issue also affects the Alfa Romeo Giulia QV, which uses the ZF S6-53 which has the exact same ratios as the GS6.

One of the things that made me choose the Competition over the standard M3.