stall converters

[BrandOmatic]

yeah i still don\'t understand what a stall converter does, and how its related to your cam, and the rest of the engine. So like a 2200 stall converter has something to do with 2200 RPM, but i don\'t know what. any explanations would be very appreciated.

[fasrnur]

Torque convertors are just that. Torque convertors! As for the stll part there are a lot of miss leading stories abotu them. I\'m not an expert by any means but I do know that there are 2 things that a convertor does. It will have a \"stall\" speed and a \"flash\" point. The convertor peple nee to know what cam you have so they can get an idea as to where your torque range is. I know this might be confusing but hopefully it will make you start to understand why I always will recomend that people call the convertor companies and not rely on what their \"buddy\" is using.



Jeff...

[my454s10]

thats is a huge issue...lets see if i can help.....if you get a cam let\'s say a .480 lift with a 280 degrees duarction....your duartion is what changes the power band and where the motor start making power....this cam would be a great street cam...it would start pullin down low...probaly 2800 or so...ok...now you need to get a tq converter to match it...a 3000 would be good....the biger cam -duartion you have the tq converter you need...and a tq converter reacts to low in tq....ok...a small block makeing 400lbs of tq will stall a lot lower than a big block makeing 600lbs of tq....they react to tq....to put it simply.....if you have a stock motor than a stock tq converete is need\'d....if you have a cam like i did at one point in time (.533 lift intake .555 lift exaust 320 duartion) than you need like at least 3500 or more....ok...if you have a big cam with some duraction say a comp 292..and you have a stock converter in it..when you put the tranny in gear it will probaly die ....and if it does move at all you will never get the full power out of it....now put a 3000 conveter in it and the motor will go but the tranny will not lock and start pulling untill it\'s get\'s to the satll speed of that converter...it will move but not lock....it short a converter put the motor in the same power range as the cam....that way when you leave the line at 3000 rpm the motor is already power....some people flash it...thats when you give it just a little gas at the line and hit the gas to the floor and the converters will flash a higher stall with all the instance tq being appiled....hope that help\'s

[BrandOmatic]

yes, thank you

[rudedogg]

a stall converter is similar to having a stick shift it allows you to get the car moving(closer to the power band)you should base your stall speed to the duration @.050 that is the most important part of stall speed vs cam personally i will choose a 2500 with any MILD performance cam any cam that has 230-250 @.050 i use a 3500 i have had good luck with this type of set up,your best bet is to call your cam manufactuer and see what stall speed they suggest and also contact the stall manufactuer for their input lots of people will not agree on the same set up you kinda have to take all the info givven and make your own final choice,always ask first this crap gets expensive fast!!!!!!!!!!!!!!!! http://www.s10v8.com/images/smilies/icon_eek.gif

[mango86]

Good job fellers, couldn\'t have done any better explaining it, matter of fact I learned something! By the way 454 your close to my cam specks, 284/480. with a stall of 3000.

As always, you guys helped out . Thats why this is the best S-10 V8 site.

[BrandOmatic]

no doubt, thanks everybody

[knudsonm]

Put two fans face to face and turn one on.

See how the non-driven one starts to move and eventually ends up going as fast as the driven fan



That is simple analogy of what is happening inside a torque converter. You put a more powerful fan in the driven location and the second fan will take longer and be at a higher RPM when it is speed matched to the first fan. That is why torque converters stall at higher speeds with more torque. Now you want to tune that speed at which the stall occurs to best match you combination. Rear gear - vehicle weight - and the engine\'s torque curve all play into the equation. Hope this helps.