stall

[bocat187]

everybody i talk to say that the marauders come with a 2300 or 2400 stall. My car starts to turn the tires over at 2000 rpm why is that

[musclemerc]

Those numbers are for the 03 MM, I believe the 04's came with a 2700 stall.
Either way you will get more performance from a single disc 3000 stall

[bocat187]

i have an 03 marauder and i don't have know 2300 or 2400 stall all i have is a 2000 at 2000 the tires start to turn over

[SC Cheesehead]

http://en.wikipedia.org/wiki/Torque_converter

http://auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/torque-converter.htm

[ctrlraven]

Stall Speed
Torque converter stall is a commonly used term and is commonly misunderstood. Stall is the speed at which the converter will hold the engine speed and not allow further gain (i.e., the engine "stalls"). The key word here is engine. The speed at which stall occurs with a given converter is a function of engine peak torque. It is clear that the stall speed on a given converter will not be the same coupled to a tame small block engine when compared to a big block with all of the muscle features added. When comparing stall speeds it is important to account for the engine that drives it. True converter stall can best be determined when a Transbrake is used. Testing for stall value by locking the wheel brakes generally does not produce a true stall value because the engine power can often cause wheel turn by overpowering the brakes. Stall speed determined by this method should be identified as such when discussing stall speed determination. Flash stall is determined by launching at full throttle and observing the peak speed attained at launch. Selection of the right stall speed for your vehicle should be matched to the engine peak torque, engine torque curve shape and vehicle weight. In general, the stall speed selected for your converter would be 500 to 700 rpm below the peak torque. This speed allows the margin for application of the torque reserve on takeoff. When selecting stall speed without having prior experience to go by, it is better to conservatively estimate the engine torque than it is to over estimate it. If you over estimate the torque output you will have a converter with a stall speed too low, making your car slow off the line and have slow ET. A properly selected stall speed will give you better launch and better ET. You can see why it is important to consult with professionals prior to making a stall speed selection. Within the converter, stall speed is balanced off against inefficiency after launch. Getting desired stall at the expense of performance after launch is just as costly as improper stall speed to begin. The optimum converter has careful selection and design of changes to the impeller, turbine and stator.

[Pat]

I have a PI 3500 stall and loving every minute. Gets you to 40 MPH with little go pedal pressure and the traffic around you is but a dim memory. The 4:10's help too. Ha.

[Darrin]

The stall speed on the 03 Marauder converter is the same as on the 04 Marauder converter. The following converters will have the same stall speed as well. Any 4.6l Mustang converter, any Mark VIII converter, and any other of the 11.25in bolt pattern converters for the 4R70W and 4R75W transmissions.

There were some internal differences in things other than stall speed that will make certain converters more durable than others, but the stall coomponents in all of the 11.25in converters are exactly the same. This means that these converters will stall the same if you swapped them into exactly the same car. It does not mean that the vehicles that they came in all had the stall speed rated exactly the same. THe rated stall speed may be different and those differences will come down to power differences and how the coonverter is loaded.

The real thing to look at is the converters K factor and all of the 11.25in Ford converters have exactly the same K factor.

That should add to the confusion ;)

Darrin