I've been doing some research on them.. looks like more take-off power and less engine restriction..

check it out:

http://www.converter.com/

https://www.f150online.com/f150board...ML/004488.html

www.protorque.com

anyone have experience with these? feedback?


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Two-Tone Green & Tan
97 F150 XLT
V6 4.2L auto 4X4
3.55 gears
MODS :
Airaid FIPK
Superchip
Ravin Z55 exhaust
GOODIES:
12 disk cd changer,
jvc 4ch 560watt poweramp (waitin on speakers)
Tinted Back
What's next?:
Tornneu cover,
headers?, Jacobs ignition system?

 

First of all, you already HAVE a torque converter if you have an automatic. What these guys are selling is a "high stall" torque converter that would replace your current converter; translation, more slip. It has nothing to do with the engine or any engine restrictions. If you put it in, it allows the engine to temporarily run at higher rpm, thus more horsepower, at low road speed. It "locks up" at a higher rpm. The downside is, of course, more slip. It will feel like your engine is "less connected" to your transmission and the road. It will also likely mean that you will get worse fuel economy. High stall torque converters are generally used for drag racing. Unless you are major league into drag racing, I wouldn't do it. I think you would get tired of it.

 

Depending on the stall speed, it can be very streetable. It will not yield huge performance numbers with a 6-cyl/4X4. If you do it, the convertor is cheap, the dropping of the transmission/transfer case will cost you a small fortune and allow for typical "major surgery" problems. Increased heat also = a good trans cooler.

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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.

 

max is right. just replaced a defective converter in my '94 F150 . . .$300 in parts and $900 in labor . . . a mechanic friend is a big help in a project like this . . .