C6 torque converter stall speed...
Elder User
Joined: May 2001
Posts: 760
Likes: 0
From: Billings, MT
C6 torque converter stall speed...
I don't know about the stall speed, but the gear ratios on a C6 are:
1st - 2.46 : 1
2nd - 1.46 : 1
3rd - 1.00 : 1
I think reverse is the same as first, but don't quote me on that.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56
Almost Stock
1st - 2.46 : 1
2nd - 1.46 : 1
3rd - 1.00 : 1
I think reverse is the same as first, but don't quote me on that.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56
Almost Stock
Elder User
Joined: Jan 2000
Posts: 966
Likes: 2
From: Crooked River Ranch, OR
C6 torque converter stall speed...
Just as a guess stock stall speed would be around 1600-1800 RPM.
Besides the stock ratios that The Law gave you, you can also purchase a wide ratio gear set from Ford Motorsports that will give you:
2.72:1 Low
1.54:1 Second
1:1 High
I installed one of these in an older F250 I had and it made quite a bit of differance when accelerating a heavy load from a dead start. It's roughly equivalent to having a 3.90 rear gear in first and second, but having a 3.55 gear in high. Deen
Besides the stock ratios that The Law gave you, you can also purchase a wide ratio gear set from Ford Motorsports that will give you:
2.72:1 Low
1.54:1 Second
1:1 High
I installed one of these in an older F250 I had and it made quite a bit of differance when accelerating a heavy load from a dead start. It's roughly equivalent to having a 3.90 rear gear in first and second, but having a 3.55 gear in high. Deen
Elder User
Joined: May 2001
Posts: 760
Likes: 0
From: Billings, MT
C6 torque converter stall speed...
Deen, how much do those wide ratio gear sets run and how much trouble is it to install them? Is that just a good time to do a rebuild anyway? My C6 gets a case of the slips now and again, and I was thinking about doing a rebuild. If I could get lower gears, that'd be great.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56
Almost Stock
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56
Almost Stock
Elder User
Joined: Jan 2000
Posts: 966
Likes: 2
From: Crooked River Ranch, OR
C6 torque converter stall speed...
>Deen, how much do those wide ratio gear sets run and how
>much trouble is it to install them? Is that just a good
>time to do a rebuild anyway? My C6 gets a case of the slips
>now and again, and I was thinking about doing a rebuild. If
>I could get lower gears, that'd be great.
>
>The Law
>1989 F-250 HD 4x4
>460, C6, BW 13-56
>Almost Stock
I do not have a newer Ford Motorsport catologe but my 1999 book lists the base wide ratio kit at $325 and the needle bearing wide ratio kit running at $425. I also believe you can get a similar kit from TCI but for a couple hundred more. If you get a good rebuild manual and the base wide ratio kit you should be able to rebuild yourself. Call a couple of different vendors that deal with Ford SVO equipment, some will deal more than others on pricing. If you can do your own mechanical figure on $100-200 for new seals, frictions and steels, another $25. for tranny fluid, plus the cost of your wide ratio gear set.
P.S. If your not replacing your converter, take it down to a local tranny shop and have them flush it out before re-installing.
>much trouble is it to install them? Is that just a good
>time to do a rebuild anyway? My C6 gets a case of the slips
>now and again, and I was thinking about doing a rebuild. If
>I could get lower gears, that'd be great.
>
>The Law
>1989 F-250 HD 4x4
>460, C6, BW 13-56
>Almost Stock
I do not have a newer Ford Motorsport catologe but my 1999 book lists the base wide ratio kit at $325 and the needle bearing wide ratio kit running at $425. I also believe you can get a similar kit from TCI but for a couple hundred more. If you get a good rebuild manual and the base wide ratio kit you should be able to rebuild yourself. Call a couple of different vendors that deal with Ford SVO equipment, some will deal more than others on pricing. If you can do your own mechanical figure on $100-200 for new seals, frictions and steels, another $25. for tranny fluid, plus the cost of your wide ratio gear set.
P.S. If your not replacing your converter, take it down to a local tranny shop and have them flush it out before re-installing.
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