RPM Question?????????

[N8NQU]

I am wondering if somebody can tell me what RPM your 4speed is turning at 60mph and what your 5speed is turning at 60mph.I have a 4speed and just curious how much gas mileage difference I am going to see.I am new to the festiva but I did have over the years several geo metros.

[bhazard]

Its a decent difference, like 3200 down to 2500 rpm or so. Maybe good for 5 mpg give or take.

[N8NQU]

Wow I didn't think it would be that much difference.Thanks

Its a decent difference, like 3200 down to 2500 rpm or so. Maybe good for 5 mpg give or take.

[htchbck]

4 speed to 5 speed is huge on the highway... around town, very little difference.

[Bert]

Wait a minute. I thought final drive ratio was the same for 4 and 5 speeds. Only difference is ability to accelerate on the way up there.

[htchbck]

Bert, 4th in a 5 speed is the same as 4th in a 4 speed. Not necessarily true for all cars, but for Festivas thats is the case.

[N8NQU]

What is the final ratio on the festiva anyways????????

Bert, 4th in a 5 speed is the same as 4th in a 4 speed. Not necessarily true for all cars, but for Festivas thats is the case.

[bhazard]

All the ratios are the same. Except some early 4 speeds supposedly have different gearing.

[N8NQU]

what is the # like 4.30, 4.06 etc or what?????????

All the ratios are the same. Except some early 4 speeds supposedly have different gearing.

[FestYboy]

most festys are 3.66 (iirc) and that oddball 4 speed is 3.8*

and Bert, final drive IS the same between 4 and 5 speed (final drive = pinion and ring gear ratio only, NOT the sum of the gear ratios)

[N8NQU]

Thank you.Bill

most festys are 3.66 (iirc) and that oddball 4 speed is 3.8*

and Bert, final drive IS the same between 4 and 5 speed (final drive = pinion and ring gear ratio only, NOT the sum of the gear ratios)

[Team Lightning]

According to post 9 in the below link, there may be a difference in each gear ratio and the final drive ratio between 4 spds and 5 spds.

http://www.fordfestiva.com/forums/showthread.php?11540-FAQ-Manual-Transmission-Swap-(last-post-updated-1-19-10)&highlight=transmission+ratios

[N8NQU]

Great information,that's what I was looking for,Thank you.Bill.banana time

According to post 9 in the below link, there may be a difference in each gear ratio and the final drive ratio between 4 spds and 5 spds.


http://www.fordfestiva.com/forums/sh...mission+ratios

[N8NQU]

In real life what RPM are you turning at 60mph with the 4speed and stock tires 12" tires and what RPM are you turning at 60mph with the 5speed and stock tires 12" tires ??????
Thank you Bill

[Bathtub Tom]

If it helps, here's the relevant page from my '93 Kia owner's manual:

IMG_0001.jpg