Torque converter roll rpm

Just changed out to a 5k 10 inch vert, from a 9 inch, the 10 inch seems to need around 2k to start moving the truck where the 9 moved @ idle, what rpms do your converters start to roll cold?

8" "frankenstein" T/A-Coan-Dynamic, flashes to 6150, pulls the motor down at idle. Something doesn't sound right. The 10" should have the ability to be more efficient/tighter.

Mine likely isn't the best one to compare to or maybe it is. It's a 3000 stall T/A 10" IIRC off the shelf from Mancini. My 493 idles at 1100 and it pops into gear and rolls away like a stocker. The car weighs 4800 (C-body) and idling down main drag you have to stay on the brakes or it will be doing what 1100 rpm and 3.23's will give you.

Define cold.

The only time mine does what you describe is if it has sat for a week or 2 and I just fire it and put it in gear but my trans doesn't have the anti-drain back valve. Shift to neutral and wait a few seconds for it to fill the converter back up and it just rolls away like normal.

Kevin

Exactly my thought... It took almost 4k going up the ramps on the trailer and I can feel heat in the tunnel floor, So I unloaded and put it back in the shop... no racin tonight Swaping verts is such a PITA in a 4x4 Its has enough time to pump up fluid... I wait a few min before droping into gear

I'm sure you've checked off the obvious like is my manual VB in 3 instead of 1? Brake caliper isn't seized? E-brake? Sometimes do-do do occur.

Kevin

Low fluid level..?

The truck seems to roll easy, and everything was good before the vert change, I checked fluid this morning after the vert change.. I will look @ it again in the morning, there is signs of spoting on the trailer deck... It could be ATF It got dark too quik after we loaded to fool with it,

a big heavy truck, it could happen. sounds like a loose converter. i would run it before i gave up that quick.

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a big heavy truck, it could happen. sounds like a loose converter. i would run it before i gave up that quick.

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Na somethings wrong, got too many passes on this rig to figure that ... Last we weighed it it was @ 3200 lbs with me, just pulled the stick and we lost a full quart and its wet on the transfer case cross member, I think I messed up on the seal between the trans and the adapter housing for the transfer case, Now the question of the hour, with a stock stamped steel pan on a 727 will a full quart low starve the pump? I could feel heat when we loaded... is that the clutch pac slipping or the vert?