No.what happens if you put ford type f atf into a 1999 4l60e? e.g. motocraft f, amssoil supershift, mobile f. what happens with redline full synthetic f (10/53 cst)? will there be an real torque capacity increase?
well, speeding up (slamming?) the shifts is actually the idea. i cant get under 0.3 sec with software at full torque. i guess its a balance between burning up and breaking?
"Use in transmissions that require Allison* C-4 or Ford* Type F fluid" (amsoil super shift): this i find confusing. any contemporary universal atf will include the c-4 spec (as well as tes-295/389). you can use it in "any" trans. logical conclusion: you can use super shift in any trans. what am i missing?
I'm really glad you posted this. I was whining to a transmission guy about the clunky 2-3 shift in a Vette I had about 10 years ago, he said "Well good, you got a good one. When it stops doing that, let me know, it will be time for a rebuild". I was like, what? Fast forward a few years, my friend bought a truck that had a 4L60e in it, we were using it to move furniture and I was paying lots of attention any time we pulled away from a stoplight, and the 2-3 was smooth as silk and I was thinking, that transmission guy was full of it. I met my friend for lunch about a month later and he shows up in a Lincoln something or other, and I asked him where the truck was. He said "Oh, I traded it in. About a week after we used it to move, the transmission went out, cost me $1500" and I thought "well I guess that transmission guy knew what he was talking about".The 2-3 Shift can only be so fast without causing a Bind-Up where the unit shifts 2nd-4th-3rd, To slow will cause a 2nd-1st-3rd (Felt as a Flare).
A absolutely perfectly clean 2-3 shift is not actually possible, A ever so slight bind (2-4 Band & 3-4 Clutch ever so slightly overlapping) is the best you can hope for.
The pump is always working in every position.edit: while ihave your attention, does the 4l60e pump in park?
Yes as explained above: The amount of torque that can be handled is entirely dependent on transmission design such as diameter of clutch packs, number of clutches in clutch pack, and shaft and bearing diameters, and actuator pressures.thank you guys. so i have to accept the "no", but please help me understand the "why".
mola, are you saying only the dynamic coef is higher and the static the same, so it will not hold more torque? as mentioned the harsh lock ups is what im looking for, at least its my understanding i should be.
We change the fluids because we are daily driving it afterwards.so the shifts are so hard the internals (sun shell, sprag?) cannot handle it and thats why you change the fluid? maybe this could be tuned to some extend with fm/ep additives? what additional detrimental effect are to be expected (seals)?
I have never heard of any so-called delamination of clutches when using Type F in transmissions or Transfer Cases.My very limited understanding has type F not being compatible with some clutch adhesives. Apparently you should never use type F in a transfer case that has and auto4WD option as the clutches will delaminate from their backing over time. Not sure if the same adhesive issue will crop up in a transmission not spec'd for type F.
It doesedit: while ihave your attention, does the 4l60e pump in park?