Quote Originally Posted by Spawne32 View Post
I don't recommend the PNH torque converter at all. While mine hasnt failed or had any issues to speak of, its very, very loose, which makes it horrific on the LS4. My gas mileage dropped to 12.8mpg on this converter as it constantly has to rev to about 2500rpm to accelerate at any good clip. It stalls around 2800 and flashs just above 3k, while it may be ideal for the cam I have, it makes the car feel like a tug boat in the low end. I've spoken with dave at TEP about this and he said its typical of the reman JTFM converters, as they are built around the GTP's 3800 v6. I also spoke with several LS cam mfg'ers and they all recommend getting a custom converter like a circle d, which said they would be more then happy to do the 4t65e. It would be much tighter around town and you could still probably get the stall you wanted without having to worry about it feeling "loose". I'm looking at doing this in a few months and having it swapped out.
Quote Originally Posted by Spawne32 View Post
Im throwing my precision converter from TEP in the trash and getting a circle d sometime in the spring. Can't stand how sloppy the thing is.
I understand what you're saying, but you have to remember, I am using it for a SC 3800. It sounds like the issues you speak of are more related to the miss use of the 4t65e in a V8 car. Plus, I can't justify the cost of a custom converter. The new in box PNH converter was well under $200 after tax.

Quote Originally Posted by Turbocharged400sbc View Post
we shredded the sprags in two of those std precision converters at only 500whp. they are their basic rebuild line.

youll know it cause youll loose all forward/reverse...except just after starting it up and puting it straight into drive from N...then it'll drive at low throttle/load for 10-20ft till the turbine no longer holds.

their only performance converter line is sold by their other company, precision industries....a damn good converter
"at only 500whp" LOL! Shouldn't be a problem for me.