best Tourqe Conveter for me???

[BLLDOGG]

hey guys, i have to change my rear main and so i want to get a good TC in the process. my car is for drag, and isnt fdriven much on the street anymore. i just want a good product and one that will stall high but not too high. basically, i need it to be street drivable but high enough to wear i'll see some improvements at the track. im already doing 2.1 on streets, and im looking to do a low 2.0XX or a 1.9 if possible

[hawgs]

3500 Vigi

[Drone51]

what hawgs said

[BLLDOGG]

im guessing it will stall to 3500??? where can i find that? i'll look around while i wait for your reply

[hawgs]

You won't be able to brake torque it to 3500 no... I think thats what you're asking.

http://www.converter.com/vigilante.htm It comes in a pretty pink color too. They have a phone number at the bottom you can contact. Their customer care there is very good. You could call and see what they suggest too. They might say that 3500 is going to be too big to drive on the street... don't listen. Anything under 3200 is a waste.

Thunder, TSP or TBryne should be able to get one for you.

[hawgs]

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.

[BLLDOGG]

thanks, im ganna have to read that a few times to get it all in.

[BLLDOGG]

i was looking on thunderracing.com and they have to for my car, a 3 and 5 disc converter. can someone give me an idea of what i should be looking at

[hawgs]

Yeah... it takes a couple times, but it will make sense after that.

Also check out this site, great for learning how a converter works:
http://auto.howstuffworks.com/torque-converter.htm

[hawgs]

Vigilante 9.5" Single Disk Lock-up Torque Converter, 200R4, 700R4/4L60E, 4L80E

[BLLDOGG]

Originally posted by hawgs:
You won't be able to brake torque it to 3500 no... I think thats what you're asking.

http://www.converter.com/vigilante.htm It comes in a pretty pink color too. They have a phone number at the bottom you can contact. Their customer care there is very good. You could call and see what they suggest too. They might say that 3500 is going to be too big to drive on the street... don't listen. Anything under 3200 is a waste.

Thunder, TSP or TBryne should be able to get one for you.

is the bottom one on that web sit the one i want. and you recommend 3500 as the rpm

[BLLDOGG]

Originally posted by hawgs:
Vigilante 9.5" Single Disk Lock-up Torque Converter, 200R4, 700R4/4L60E, 4L80E

thanks

[hawgs]

Originally posted by BLLDOGG:
</font><blockquote>quote:</font><hr />Originally posted by hawgs:
You won't be able to brake torque it to 3500 no... I think thats what you're asking.

http://www.converter.com/vigilante.htm It comes in a pretty pink color too. They have a phone number at the bottom you can contact. Their customer care there is very good. You could call and see what they suggest too. They might say that 3500 is going to be too big to drive on the street... don't listen. Anything under 3200 is a waste.

Thunder, TSP or TBryne should be able to get one for you.

is the bottom one on that web sit the one i want. and you recommend 3500 as the rpm </font>[/QUOTE]Yup... 3500-3600 RPM. [img]smile.gif[/img]

[BLLDOGG]

thanks very much.

[Arctc Wolf]

I've got 3.42's, and my tc has 2.55 str, 3000 stall, and 96.8% eff. I'd say between 2800-3500 stall would be good.