Sandy Johnson
Harry Member
I've got a heathy 6.0 lq9 hooked up to a 700r4. 4.88s, 40s, jeep weighs 5,300 lbs with me in it.
This is my first rig I've had an automatic in, and it has taken a little adjustment. Up until last weekend all I've really done is go crawling with the thing and it is phenomenal at that. This last weekend I got back to my roots and met up with some friends to do some high speed desert and sand dunes. I was a little disappointed in the performance and trying to figure out what needs to change. I'm making all the right V8 noises, but it feels like it's not quite putting down the power. Rode in a buddy's 4 door JK (5.13s, 40s, stock engine and tranny) and was surprised how much harder it pulled in the dunes. To add to my suspicions, I could only get a few minutes of spirited dune or even desert wash driving before my tranny temp would start climbing. I've got two coolers with electric fans on the lines and it's still not enough.
On an related story, I ended up doing some highway driving with it last night. It has an overdrive torque converter lockup that works pretty well from 60 mph on, but any time I hit a hill and had to turn off over drive, I'd rev to the moon and build a lot of tranny heat without going too much faster. I finally figured I have a real problem when I ended up screaming up a local grade at 55 mph with my tranny temp gauge pegged. With my foot to the floor I should be hauling ass but instead all I'm getting is slippage. Shoot, I can cruise up that hill at 75 in my jetta station wagon.
Time for a new torque converter? Something else screwy with my transmission? I just want to be able to haul ass when I actually put my foot in it.
This is my first rig I've had an automatic in, and it has taken a little adjustment. Up until last weekend all I've really done is go crawling with the thing and it is phenomenal at that. This last weekend I got back to my roots and met up with some friends to do some high speed desert and sand dunes. I was a little disappointed in the performance and trying to figure out what needs to change. I'm making all the right V8 noises, but it feels like it's not quite putting down the power. Rode in a buddy's 4 door JK (5.13s, 40s, stock engine and tranny) and was surprised how much harder it pulled in the dunes. To add to my suspicions, I could only get a few minutes of spirited dune or even desert wash driving before my tranny temp would start climbing. I've got two coolers with electric fans on the lines and it's still not enough.
On an related story, I ended up doing some highway driving with it last night. It has an overdrive torque converter lockup that works pretty well from 60 mph on, but any time I hit a hill and had to turn off over drive, I'd rev to the moon and build a lot of tranny heat without going too much faster. I finally figured I have a real problem when I ended up screaming up a local grade at 55 mph with my tranny temp gauge pegged. With my foot to the floor I should be hauling ass but instead all I'm getting is slippage. Shoot, I can cruise up that hill at 75 in my jetta station wagon.
Time for a new torque converter? Something else screwy with my transmission? I just want to be able to haul ass when I actually put my foot in it.
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