Alamak. So many questions, i can't answer so much. hahah. I try my best la.
Alright. Let's don't call the 5th or 6th gear as the final gear. as i mentioned before.
And for your information, although we do call every car's gearbox as gearbox, but there are actually 2 types of gearbox. In a FF vehicle, we should call the gearbox as transaxle, while in a FR vehicle, call transmission. Generally...
Simon, "5th or 6th as 0.85" means the gearbox has the 5th or 6th gear in 0.85 ratio. 5th/6th gear ratio is referring to the gear ratio of the 5th/6th gear inside the gearbox. And, in your case, the "final gear" is referring to the final drive. Means your final drive is in 4.9 gear ratio la. To clear your a bit doubt with "5th/6th gear" and "final drive", this 2 thing are in separated location in a vehicle if your car is FR or using a transmission. They are connected by propeller shaft, not direct contact. (FF using transaxle). And yes, they are 2 different set of gearings.
kyfei, ya. Everyone is confused. But you got it........ you got it right. hehe.
na_power. Yes. Final drive and gearbox are 2 different thing and separated in a transmission vehicle. And there's Nothing as "gear 1 to 5 or 6 just using one final drive." haha. Every car has 1 final drive doesn't matter your gearbox got how many speed.
wfhan, yes, you are right. Let's say " A x C = T " or " B x C = T "
A and B refer to 1st gear and 2nd gear ratio if your gearbox only has 2 speed.
C refers to your final drive ratio and it is always there at that position.
T is your torque.
So, if you change the A ratio only, it won't affect the result or 2nd gear.
but if you change the C ratio, it will affect both the result isn't it?
Means whatever gear you are in, your output will still need to travel the final drive first before going to your wheels.
I think better do a self study la if that's confusing. hehe. and i got no time to upload the pics for the explanation. Good luck everyone.
