yes i have searched

what is a stall converter??? sorry lol, but every one keeps saying "ohh i have a 2800 stall converter" or 3800......what doe all that mean?

thanx

 

Imagine you're sitting at a traffic light with your left foot on the brake; and you mash your right foot on the gas. What RPM does the engine go to?

That's your stall speed.

Up to a point, usually, the higher that RPM, the harder the car will launch.

For best ET, you want your stall to be at or just below the engine's peak torque RPM; and you want to shift at or about the engine's peak HP RPM, or at the RPM such that after it hits the next gear, it's back to the peak torque RPM.

You may find that you can't hook up as much power as your engine makes, at its peak torque RPM. Your tires may go up in smoke or you may have violent wheel hop or any number of other bad things. If so, you might need stickier tires, suspension work, or something.

 

awsome thanx for answering

just wondering, if you slam on the gas and break....isnt that bad on the tranny? isnt your tranny trying to spin your driveshaft but your breaks are on full so its stopping it? or does it have something to do with the tourque converter?

i believe when i brakestand my rpms never go over 2500....would that be my stall?

last one.. our car make most power at around 3500 right? is that the kinda stall convertor you want

 

With a 6-cyl, your stall should be around 1400 RPM.

That's the point of a torque converter. It has a non-linear sort of "engagement"; as the RPMs go up, it increases the amount of power it transfers only very slowly up to that point, and then suddenly begins to engage more and more once that RPM is passed. That's why when you're sitting at a traffic light and give it gas, the RPMs go up to whatever they go to as you take off, then maybe rise slightly as it passes through 1st gear, then decreases to that same RPM when it hits 2nd, stays there for a bit, then increases again, then shifts to 3rd, which brings it back to the original RPM yet again, etc.

A racing converter is designed to slip almost 100% up to its stall RPM, then engage almost 100% once that's reached. Sort of like a clutch dump with a stick shift, when the engine reaches that particular RPM.

I have no clue where a 6-cyl makes the most power; 3500 RPM probably isn't too far off. I've never owned one, never driven one, can't say I've ever even looked at one very much. Not sure I'd know what one looks like, like a Chevy one vs some other brand or something. Closest I've come to one, is one of my little brothers has a S-15 truck with that motor.

 

Im glad you gave a good anwser that I could actually understand. Thanx for clearing it up.

let me get this straight..... i will use the red light again

Im stopped at a red light, i stand on the brake, then the gas, when i let go of the brake the tourque converter engages transferring power to the transmission? giving me the launch effect that the drag racers get?

So in a way its not bad for the tranny?

exscuse my slowness im just trying to abosorb all the information i can get

 

This is a really cool site. You might need flash installed, but it's free. This will teach you how a torque convertor (stall convertor) works.

http://auto.howstuffworks.com/torque-converter.htm

 

so its not hard on the tranny??

 

Don't stall it for over 5 seconds unless you want to blow the seals out due to extreme heat. Your converter is sittting there at max torque multipliction with the impellor spinning at full speed and the turbine stopped. You ask what that makes. Heat and lots of it.

The stall speed on my sisters s10 blazer with a 2.8 is 3,500 rpm. Can't comment on a 2.8 camaro though. A stock V8 transmission is about 1,200-1,400 though.

 

so lets say im racing, i step on the brake, then stomp on the gas and for a max of like 5 seconds i cant hold, then let go of the break and get a launch effect?

 

I do it when I am at the track with any of my cars. I'll even stall load the van sometimes if I think I need the launch advantage. I just won't do it for any longer than it takes the engine to rev up to the converters stall speed. Usually mash the gas at the first light and release the brake at the last yellow and somehow narrowly avoid a red light. Have redlighted a few times that way though. Usually in my GFs 1985 monte ss 396.

 

thanx for all your help man