Alwyn678

IS ANYONE CURRENTLY USING ONE??

Tim H

If you run a over size cam and say the RPM range starts at 2500 RPM,A stall will bring that RPM range down closer to taking off from a dead stop.
A good stall is cushioned so you can drive on the street without stalling up to the 2500 before taking off.
Also they help a car not surge at a stop lite from the cam pulses pulling on the transmission.
The right selected stall is one of the best performance add ons you can get.
But you need to know about how much horsepower and torque you have.

A good example would be,a 3000 lb car,355 gears,350 motor,224-235 duration at 50 cam, could use a loose 11 inch stall(cheap) or a 10 inch tight one(more money.)
There is way more to it but there are alot of people on here who can steer you to the right one when you are ready

Alwyn678

Sounds like something I need!! Car does have an oversized cam and power is Great but as you say comes on really strong at 2500 and needs some help getting off the mark..I think I will look at getting one for sure...Thanks..Also what do they cost??


[Modified by Alwyn678, 10:28 AM 12/30/2001]

redwingvette

Plan on adding a trans cooler if you don't have one. stall converters create more heat and less fuel economy. Rpm's go up throughout the rpm range.

Jvette73

Select a stall convertor based mainly on your cam duration. With the 284 that you have, I would select 3000stall. With the 284 it must be kinda sluggish from the hole with a stock convertor huh? The convertor that came with my BTO 200r is 2200stall.

Techno

I thought all automatics had stall convertors. Whats the diff?

I know that a torque convertor can be gotten so it engages at higher rpms rather than lower, but this doesn't make it a different animal. The engine acts as if its in neutral until a certain rpm is met.

Jvette73

Shen someone says "stall" convertor, they are usually refering to an aftermarket convertor that has a higher stall speed then stock.

SuperFast80

I have an L79 cam and I put in a 2700 stall to help me off the line. It was THE BEST MONEY I HAVE SPENT TO DATE. :yesnod:

mountainmotor

I used to know a source for a torque converter just like you need.But I am suffering from a memory loss :D
http://forums.corvetteforum.com/zerothread?id=205039

A reply from Alwynn78 from a previous thread.
quote:
mountain motor said,--------------------------------------------------------------------------------
"He uses my recommended cam and all else equal he is going to leave on you hard in a drag race."
--------------------------------------------------------------------------------

Whatever I Highly doubt that ......My motor was built very well and the cam was recommended by several builders....... mountain man

[Modified by Alwyn678, 9:02 AM 12/22/2001]
_______

74 Stingray Convertible- 355..041 Heads, Blue Racer 284 Cam, Edel. Performer, Holley 750 DP,10.5:1 compression..Delta 40 Flowmasters




[Modified by mountainmotor, 11:52 AM 12/30/2001]

1977

I have a 3000 stall in the 77 one of the best things that I put on comes out of the hole smokiiiiin :cool:

63Banshee

When it comes to performance you should choose a stall converter based on max torque and torque curve of the cam. The converter can be built to slip to a certain rpm. If you have a converter that slips beyond peak torque then you aren’t getting full benefit from the torque curve.

Also, that same converter built to slip at a particular rpm may be rated for a motor that has less torque then yours. If you have more torque the converter will slip at a higher rpm. This will require a little investigative work to get it just right.

Another thing to keep in mind is what rpm the motor is spinning at cruise speed. If you cruise at 2600 rpm and the converter stalls at 2800 you can bet the converter will not last long and it may take the tranny along with it to the rebuilder.

When it comes to street driving you can bet that 2500 rpm stall is all you will want. I’d probably opt for more like 2300. BTW, the tranny cooler recommendation stated above is an excellent one!

Alwyn678

Thanks for pointing that out mtn man....The car comes out of the hole great...and it pulls very very hard..I am very happy with the cam I just want to make it even better..I would not change the decision on my cam choice however mtn..but thanks for pointing out whatever it is that you are looking to point out :rolleyes:

Tim H

I don't think you can just pick a number and have a stall made to that.
There is no such thing as a 2300 stall.
With a 10 inch stall just going by weight of the car,A 3000 lb will stall less than a 4000lb car cause it takes more power to move the car.
Say you have a 10 inch B&M stall in a 67 camaro and it flash stalls at 2800RPM then you put that stall in a 69 Chevelle the flash stall would be around3300-3500 depending on motor and torque.
So the heavier the car the more stall you will get out of the same converter.
And like I said before a stall is cushioned so you can take off at a stop lite normal not at 3000 RPMs just to move.
Very mis-understood piece of speed equipment.