What rpm stall converter do I need?
What rpm stall converter do I need?
Most street performance cars running your typical “performance” cam should be running a stall converter in the 2,800 – 3,000 RPM area. For hotter cars (street / strip) with bigger cams, etc. then a converter in the 3,000 – 3,500 RPM is more suited.
What is the stock stall on a th350 transmission?
Stock GM units have stall speeds in the area of 1400-1600 unless it’s from a GM diesel which is lower still. Simply keep in mind two things high stall converters were designed so that engines could develop more torque while still sitting on the starting line.
What size is a stock TH350 torque converter?
Where this can get confusing is in selecting a performance converter because there are literally hundreds of different converters for a TH350. The first big variable is the diameter of the converter. Stock converters are often between 11 and 13 inches in diameter.
What is a stock stall speed?
In other words, stall speed is the engine RPM at which the torque converter transfers the power of the engine to the transmission. In the real world, the torque converter’s stall speed roughly equates to the clutch engagement point on a manual transmission.
Can a high stall converter be installed at 2, 500 rpm?
A 3,500 RPM converter can be installed without seeing a 2,500 RPM stall if there is not enough torque provided by the engine. Meanwhile, if you install the 3,500 RPM converter in a vehicle with a big block engine with massive torque, you may get more like 4,000 RPM stall.
Why does a high stall torque converter Flash?
Race engines will have no power at a low RPM, and will be shy on torque, so the nastier that the engine is, the higher the stall speed will need to be. Gear ratio, cubic inches, weight, and torque have a factor in this. This won’t get the flash effect whenever the stall converter will flash to when your finger comes off the trans brake.
Why does my car stall at 2, 500 rpm?
Stalling is when the torque converter locks up during a load. For instance, if you have a car that has a 2,500 RPM stall converter, and then you hold both gas and brake at the same time, like you were going to power brake, then general RPM that the tires will break loose at is going to be 2,500 RPM.
What happens when you put a stall converter on a car?
In most cases, the car will drive good, until you hit the gas which results in the engine ‘flashing’ to the RPM, similar to putting a clutch in, then revving the engine and dumping it, that is when it all gets loose! Furthermore, determining which stall converter to install is not exact science.
What should the stall speed be on a stall converter?
4- Order your converter after you know all of the engine and driveline specs that will affect the stall speed design. As a general rule for street use, obtain a stall speed with a minimum of 500 rpm into the powerband.
When does a torque converter stall the engine?
Stall speed is the speed at which the converter holds back or limits the engine speed if the transmission output is prohibited. When your torque converter prevents the power transfer from your engine to your transmission, it increases the engine’s RPM stalls. For example, when you press down on your gas pedal,…
Are there any 700R4 stall converters left in stock?
Only 2 left in stock – order soon. . Only 2 left in stock – order soon. . Only 2 left in stock – order soon. . Only 2 left in stock – order soon. . Only 2 left in stock – order soon. . In stock on April 28, 2021. . Only 7 left in stock – order soon. . Only 2 left in stock (more on the way). . Only 3 left in stock (more on the way). .
What happens when you over estimate your stall speed?
If you over estimate, your stall speed will be lower than intended, which will reduce your torque converter’s performance. If you are unsure about these modifications, the experts at RevMax Performance Torque Converters can help.
