Torque Converter slippage

[Jeff@Spartan]

Those real high numbers are actual torque converter slip. When it's unlocked it can slip as high as the stall speed, which is around 2000 RPM on a stock converter.

Hence the reason you don't need to really pay attention to them.

 

[3brorce]

Anyone know if a Livewire can monitor TC slip?

 

[powerstrokin15]

Anyone know if a Livewire can monitor TC slip?

go through your settings if you have one. but im guessing no.

 

[3brorce]

go through your settings if you have one. but im guessing no.

i do have one. so does it or no?

 

[Jeff@Spartan]

I would assume that looking through your PID list, you should be able to find whether or not the Livewire has that PID.

 

[powerstrokin15]

i do have one. so does it or no?

just browse through your PID listing on your livewire.. easy enough..

but here is a PID list i found by googling it....

Coolant temp
Desired exhaust backpressure
Desired fuel mass
Engine oil temp
Exhaust backpressure
Injection timing
Injector pulsewidth
Inlet air temp 2 (degree C)
Intake air temp (degree F)
Manifold absolute pressure (Mpa) - not gauge pressure, real pressure
RPM
Vehicle speed
Boost pressure gauge (PSI) - This is what the gauge reads from
Dpf pressure (Kpa)
Dpf regen status - This is a counter so you know how long for regen
Egt 1 offset (degree C) - factory sensor
Egt 2 offset (degree C) - factory sensor
Egt 3 offset (degree C) - factory sensor
Frp desired (Mpa)
Frp (Mpa)
Pedal position
Torque into torque converter

so i guess it can

 

[3brorce]

Thank you. Do you know what safe numbers are to stay within?

 

[Jeff@Spartan]

Depends on the value used. The DashDAQ monitors it using RPM. I think it is understood that anything between 0-10 is error. Beyond 10 is actual slip. My truck was still perfectly drivable with 100+ RPM of slip when I punched it with the converter locked up. However, the converter was obviously slipping so it wasn't putting all of the power I had on tap to the wheels. I have never seen anything close to 100 with my SunCoast and the converter locked up.

 

[cory151]

Damn I didnt see this as one of the gauge options i the Mini Maxx, wonder if they are calling it something else. Oh well, guess Ill just do like I did on my 7.3, if it still pulls its ok.

 

[uga33]

Cant get mine to go over 4.25. Stock converter with 79k miles on it running the 300 tune.

 

[powerstrokin15]

mines slipping more and more. 45rpm of slippage. good thing we got a 5r in the shop for when mine goes BOOM LOL


Eric@HolderdownPerformance

 

[Cajunhunter67]

I dont believe the SCT livewire has Converter slip indication. It has torque input indication which has been as high as 900ft lbs, also It has torque converter speed. It usually stays at 1.64 on mine, but have no idea what its really measuring.