Stall Converter Gas Mileage

1966 was the last year of the 19 spline 727s so my choices on torque converters is limited to TCI as far as I know. In a stockfactory converter this stall speed RPM will be relatively low to minimize slippage maximize fuel economy and get the car moving soon.

Inside Afe S New Torque Converter Diesel World

As has been said already how often the torque converter is locked up has a dramatic impact on mileage - especially with a higher stall.

Stall converter gas mileage. Also a high stall can be annoying to drive on the street because. I currently have a bone stock stall converter in my vehicle probably around 1200 rpm stall I currently get about 7-8 mpg when driving normal and about 4-5 mpg when driving aggressively. This will allow your engine to get into the area where it is designed to operate and your engine will make enough power to drive the converter into its stall range.

I gain a total of 1 mpg which brings the truck now to 132 average mpg. The stall speed on this balanced and pressure tested converter will be 300-400 RPM lower then stock. Yesterday I swapped converters on my truck at my buddys house 50 miles from home.

I have an automatic NA. If a 6000 RPM converter means that the car doesnt start moving until that RPM then the engine would need to be wound out just to hit 15 MPH and that isnt how it works. The rpm at which the engine is held corresponds to the stall speed of the torque converter.

Such a converter is said to be relatively tight. Discussion Starter 1 Dec 7 2009. The converter is designed for towing RVs and BETTER GAS MILEAGE.

With lockup it gets about 20 MPG on the highway. Discussion Starter 1 Jan 26 2012. A car that has a 6000 RPM stall converter in gear and idling will roll along at about 10 MPH just like any other car that is in gear with the brake off.

Mc1993 hyd 4 230 230 287 287 480 480 106 110 2000-5000 rough 817 comment. Power braking can also be used to diagnose a bad converter. For example when you press down on your gas pedal the stall speed is the gap between where your vehicle ideals and begins to move.

For daily driving on stock to moderately modified trucks a lower stall tc is a great. In this video I share my gas mileage after installing my new torque converter. Even though the delivered torque to the rear wheels will be higher with the aftermarket converter you will lose fuel.

The purpose of a high stall or loose torque converter is to allow the engine to flash up to an RPM where it makes a lot of torque and thus will provide maximum acceleration. I have read a few threads about mpg loss through stall rating. Converter stall speed effect on mileage.

Will that change much when I throw in a 2500 or 3000 rpm stall converter. On a street car the penalty in gas mileage and heat generated by a high stall converter favors a lower stall. Streetstrip mild bracket racing.

When your torque converter prevents the power transfer from your engine to your transmission it increases the engines RPM stalls. Race applications require a minimum of 1000 rpm more stall up to as much as the peak. 2200 stall converter.

Besides the speed sensing indicator a converter may not lockup for any of the following reasons. Stall speed is the speed at which the converter holds back or limits the engine speed if the transmission output is prohibited. For shift quality and all around smooth operation delete the direct drive and use a moderate stall under 2500For applicatons needing more stall than that keep the direct drive and set a street converter around 2800.

373s in the rear. My gas mileage has always been horrible. Yes you will improve you fuel economy with a lower stall tc a stock tc on these trucks is 2200 rpms.

Joined Jun 28 2011 112 Posts. Good for street rods with high stall converter mc1995 hyd 4 234 244 303 313 488 509 107 117 2500-6500 rough 817 comment. Joined Dec 31 2007 220 Posts.

I have a 200-4r with a 2400 stall. As a general rule for street use obtain a stall speed with a minimum of 500 rpm into the powerband. This lockup feature will not engage until the vehicle reaches approximately 40 mph.

My original tripe disc from dunrite was 1700 rpms i have since recently sent it back and had it restalled to 2200-2300 rpms for pulling reasons etc. Use this fuel consumption converter to convert instantly between kilometers per liter liters per 100 km miles per gallon and other metric and imperial fuel consumption units. I have a 727 in my 66 coronet.

All my driving will be street driving. You will see a loss in fuel economy going from a stock converter to a higher stall converter over 3000 rpm assuming everything else is the same tune driving habits etc. Such converters are used in racing and in.

Jump to Latest Follow 1 - 4 of 4 Posts. If i am normally driving around 1500 rpms 45 mph should i drop it innto 3rd gear to increase rpms because the converter is slipping at that range. What effect does that.

Dont know what brandstall it was. A converter optimized for drag racing will have a stall speed much higher than a street converter. The new one is a 10 rated at.

Engine temperature too cold - most converters will not lockup until the coolant reaches about 120F. Other factors may also prevent this type converter from locking up. I used a little more than 10 gallons of gas to get there.

Allowing the engine to get into the power band quickly more than compensates for the disadvantage of lower efficiency. If I go turbo and with a higher stall torque converter will my gas mileage sink. Normally cruising into the pits is done with the car idling and in gear.

Would it improve gas mileage. My Impala SS gets about 10 MPG out of lockup and the stall speed is about 3300-3500. The more stall speed you have the more pressure you have to put on the gas.

The old verter was at least a 12 inch diameter. Torque converter stall speed gas mileage question. With the transmission in Drive one foot on the brake and the other on the gas the engine is revved until its strained to the limit.

This will give the best results. Jump to Latest Follow 1 - 5 of 5 Posts. They sell a 2400 stall speed unit.

Just for a reference a stock converter will usually have a stall speed of around 1500-1600. Most aftermarket tcs single or triple disc are around 1600-1700 rpms. This is not a trailer queen.

It is also a way to check a converters stall speed. If the stall speed which is usually around 1500 to 2200 rpm for a stock converter.

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