Gear ratio

[Tilbentross]

What gear ratio should I use for the best high speed?

[[DrunkQc]WazabiQc]

How do you even adjust gear ratio ?

[Tilbentross]

You go to repair shop

[Polaventris]

Lower number, higher top speed but slower acceleration. Higher number, lower top speed but faster acceleration.

[KoolBreeze]

Originally posted by Polaventris:

Lower number, higher top speed but slower acceleration. Higher number, lower top speed but faster acceleration.

How does it effect acceleration when the gear ratio is only for the final gear?
What ratio would you suggest for the rally? I was thinking 3.9 or 4.1 cause I can't get into 4th in most of the rally track. I think if I wasn't using a keyboard I could, or maybe with more practice, I will reach 4th gear.

[Kirmukarmu]

3.700 seems popular.

[123]

Originally posted by KoolBreeze:

Originally posted by Polaventris:

Lower number, higher top speed but slower acceleration. Higher number, lower top speed but faster acceleration.

How does it effect acceleration when the gear ratio is only for the final gear?
What ratio would you suggest for the rally? I was thinking 3.9 or 4.1 cause I can't get into 4th in most of the rally track. I think if I wasn't using a keyboard I could, or maybe with more practice, I will reach 4th gear.

You don't understand it. It's not a "gear" such as 1st, 2nd etc, it's gear as a sprocket, a cog. It transfers the power to your half shafts, and ratio means how much rpm your halfshafts produce compared to engine rpm. Say with 3.7 ratio, you're getting 1 revolution of halfshafts for every 3.7 revs of crankshaft(I explain it in a simplified manner though). So with higher ratio, you'll take off easier, but you'll run out of room for speed sooner as engine is not producing enough rpm, and vise versa.

[JWNoctis]

I -think- the final gear is the final reduction drive in the differential, and before that you got the gearbox, clutch and crankshaft.

Unfortunately there's no aftermarket gearbox yet.

[isocuda]

gears and diffs work the same way as far as ratios go.

Power flow is: Engine = 1000rpm -> X Gear @ let's say 0.800 = 800rpm -> Final Drive/Differential @ 1.500 = 2400rpm -> output to wheels

The gearbox lets you change the ratios while on the go. The diff has a static ratio and also help take the power and put it to the wheels.

TL;DR
Changing a gear's ratio only changes that one gear.

Changing the final drive ratio changes all the gears

[MicroKORGI]

Stock or higher for rallying, as low as possible for top speed.

[Myztkl©-Kev]

4.110 or lower will get the 200km/h achievement with rally tires and a good tune.

[KoolBreeze]

Originally posted by beckhan501:

Originally posted by KoolBreeze:

How does it effect acceleration when the gear ratio is only for the final gear?
What ratio would you suggest for the rally? I was thinking 3.9 or 4.1 cause I can't get into 4th in most of the rally track. I think if I wasn't using a keyboard I could, or maybe with more practice, I will reach 4th gear.

You don't understand it. It's not a "gear" such as 1st, 2nd etc, it's gear as a sprocket, a cog. It transfers the power to your half shafts, and ratio means how much rpm your halfshafts produce compared to engine rpm. Say with 3.7 ratio, you're getting 1 revolution of halfshafts for every 3.7 revs of crankshaft(I explain it in a simplified manner though). So with higher ratio, you'll take off easier, but you'll run out of room for speed sooner as engine is not producing enough rpm, and vise versa.

Thanks for this.

[KoolBreeze]

Originally posted by isocuda:

gears and diffs work the same way as far as ratios go.

Power flow is: Engine = 1000rpm -> X Gear @ let's say 0.800 = 800rpm -> Final Drive/Differential @ 1.500 = 2400rpm -> output to wheels

The gearbox lets you change the ratios while on the go. The diff has a static ratio and also help take the power and put it to the wheels.

TL;DR
Changing a gear's ratio only changes that one gear.

Changing the final drive ratio changes all the gears

You say here that the "The gearbox lets you change the ratios while on the go."
Do you mean this literally? or do you mean this as changing through the mechanic?
If you can change it on the go how?

[anselmw]

Originally posted by KoolBreeze:

You say here that the "The gearbox lets you change the ratios while on the go."
Do you mean this literally? or do you mean this as changing through the mechanic?
If you can change it on the go how?

Pretty sure he meant to explain in a certain way what the gearbox in any car does - it enables you to change the ratio of sprockets while driving, essentially.

[M!SS AMER!CA]

Originally posted by anselmw:

Originally posted by KoolBreeze:

You say here that the "The gearbox lets you change the ratios while on the go."
Do you mean this literally? or do you mean this as changing through the mechanic?
If you can change it on the go how?

Pretty sure he meant to explain in a certain way what the gearbox in any car does - it enables you to change the ratio of sprockets while driving, essentially.

Yeah he just meant shifting, although CVTs do this too

[BlockyPC]

3.7 gear rate and rally tires can make your car go over 200KM/H.