APS Hemi TQ Converters, "BracketFighter", and Pro-Series Billet
Custom High Stall Torque Converters
(42/44/46 Series - Includes 3.7/3.9/4.7/5.2/5.7/5.9L & Older Models)

BracketFighter 2400 Stall Torque Converter
The APS Torque Converter is very streetable as it relies on a different impeller to not just spacing the members further apart to get additional stall like so many rely on. We also use a Hardened Input Shaft Spline Insert, upgraded friction from paper (OEM) to Kevlar or Solid Carbon-Fiber depending on stall, as well as machine the slight taper off the apply surface for a firmer lock up...resulting in increased top end efficiency. We also increase torque multiplication over the stock unit, meaning we multiply the amount of Torque the unit will put to the back tires delivering EXCITING performance. This is done by using a higher stall stator and a negative raked impeller...these are not just a simple, modified, factory converter with loose tolerances to give you a higher stall effect.
These factors all add up to give you the APS EDGE! Getting the EDGE in performance while maintaining efficiency for fuel economy and peppy around town driving. We increase the efficiency of the torque converter over the stock unit by a full 6% (stock rating is approximately 14% parasitic loss just from the converter). This means that you don't get that "spongy" feeling under light acceleration found in other high-stall converters. Our converters can easily handle horsepower ratings of 600+!
Yes, you read it right. APS now has the ONLY aftermarket performance torque converter for the 5.7L "Hemi" trucks. It offers much closer tolerances than factory (very sloppy) and a 200rpm higher stall as well. With the closer tolerances, you get more power to the rear wheels which, in conjunction with the slightly higher stall, equates to quicker acceleration and faster ET's at the track. Again, we are the ONLY ones who offer this converter. The stators we use are all brand-new custom manufactured, not modified factory pieces. This brings the efficiency factory from the factory 82% to 93%. This can allow us to guarantee you a minimum 25-30 rear-wheel HP increase.
For those looking for the Ultimate in Torque Converters, check out our Pro-Series "BracketFighter" converters. They use a Spun Billet Housing for extra strength, 245mm impeller, can be custom configured for vehicles with trans-brakes, and are also fitted with anti-ballooning measures. Call us for pricing on these converters.
3.9L V6 Performance TQ Converters (Pricing
coming shortly)
BIG NEWS V6 folks!! APS has, for the performance hungry 3.9L
enthusiasts, a NEW converter just for you. The stall ratings are
available from 2000~3000 depending on application and are a Fully Rollerized
converter. It comes out of the box kicking and will help the 3.9L on
both HP and TQ as that factory converter is one of the worst Chrysler
converters ever made. The New converter will absolutely astound the V6
owners in terms of the difference…It’s truly nothing short of amazing!
It shows a massive torque and efficiency upgrade just like its big brother
for the 5.2/5.9L and to aid in the power production we dial in more negative
rake on the impeller to give the small engine a real serious kick in the
butt. Full carbon lock up clutch allows towing in OD and lasting
performance without a load in tow. They will be available in painted
or “Stealth” depending on customer’s preference. In “Stealth” trim
only you and APS will know that your running a performance converter as its
outward appearance is not distinguishable from stock however inside well
that’s a different story.
4.7L Performance TQ Converters (Pricing
coming shortly)
Much like the new Hemi Converter but decidedly different, the new 4.7L Fully
Rollerized converter shows a massive torque and efficiency upgrade just like
its big brother the 5.7L Hemi. To aid in the power production, we also
dialed in more negative rake on the impeller to give the 4.7L powered Dodges
a real serious HP/TQ increase. As with our other converters, it comes
with full carbon lock up clutch which allows towing in OD and lasting
performance without a load in tow. They also are available in painted
or “Stealth” depending on customer’s preference which means that only you
and APS will know that your running a performance converter as its outward
appearance is not distinguishable from stock. We will be collecting
the cores just like the HEMI as these 4.7L cores are not all that plentiful
in the aftermarket at this point, but the good news is that big gains can be
had with this converter on your N/A, Supercharged, Turbocharged, or
Nitroused 4.7L.
None of our Torque Converters cause problems with shifting, check engine lights, or having to lift off the accelerator to shift (1-2 shift or 2-3 shift). This is a sign of an inferior, poorly built Torque Converter. We only build the highest quality converters.
You can also download "How Torque Converters Work" (Adobe Acrobat v5.x format)
What is Torque Converter Stall?
The easy answer is: The RPM a torque converter will allow the engine to attain
with a given engine torque input.
How is Torque Converter Stall
measured?
That's where the confusion begins between the racer and the high stall torque
converter builder. Stall is measured in three different ways - TRUE, BRAKE and
FLASH Stall. The only true way to set stall is using TRUE stall math.
What is TRUE Stall?
True stall is measured with the transmission locked (Trans brake) and the drive
shaft still. The throttle is then fully depressed and held to obtain the holding
RPM of the torque converter. This is the "TRUE" Stall.
What is Foot Brake stall?
This is attained with the transmission in gear and the brakes depressed fully.
Now, slowly apply the accelerator. The RPM the engine reaches the moment before
the tires spin is known as the "BRAKE" stall. BRAKE stall in not a
consistent way to measure your stall converter and has many variables.
This method will be lower then TRUE stall by 400-800 RPM.
What is FLASH Stall?
Flash stall is generally read while the car is in motion. While rolling at a
slow speed the throttle is depressed fully to see where the RPM will flash (or
peak). This method will not be true if tires spin or car is rolling too
fast. Due to the turbine already turning in the converter we end up with
less torque multiplication. This will give you a lower stall reading of
between 200 and 600 RPM under the converters TRUE stall in the same application.
Why do I need a custom built high
stall torque converter ?
A torque converter that has a part number has many applications. Many
manufactures sell you the same advertised 3200 rpm stall converter for your
small block as they would for the next customers big block. This will always
result in two very different stall settings. Do you need a custom built high
stall torque converter? Perhaps you don't, but building the units on a one
to one basis allows us to put out a product that is configured correct the FIRST
time. This is done using a "Performance Torque Converter Application
Sheet". It's with this information that we can custom configure your
performance torque converter to get the most for your investment.
Our least experienced transmission builder has 20+ years of Hands-On experience in High Performance Automatic Transmissions.
TQ Converter models currently available (email for older applications):
IMPORTANT: Please fill out this online form when ordering a TQ Converter
| Part Number | Description | PayPal | Cost | Shipping |
|
Dodge/Chrysler - 42/44RH - 1992-1995 |
||||
| 4244-BF24RH | APS - Bracket Fighter 2400 | $450 | $37.00 | |
| 4244-BF28RH | APS - Bracket Fighter 2800 | $450 | $37.00 | |
| 4244-RF30RH | APS - Race Fighter 3000 | $525 | $37.00 | |
|
Dodge/Chrysler - 46RH - 1992-1995 |
||||
| 46-BF24RH | APS - Bracket Fighter 2400 | $450 | $37.00 | |
| 46-BF28RH | APS - Bracket Fighter 2800 | $450 | $37.00 | |
| 46-RF30RH | APS - Race Fighter 3000 | $525 | $37.00 | |
|
Dodge/Chrysler - 42/44RE - 1996-Current |
||||
| 4244-BF24RE | APS - Bracket Fighter 2400 | $450 | $37.00 | |
| 4244-BF28RE | APS - Bracket Fighter 2800 | $450 | $37.00 | |
| 4244-RF30RE | APS - Race Fighter 3000 | $525 | $37.00 | |
|
Dodge/Chrysler - 46RE - 1996-Current |
||||
| 46-BF24RE | APS - Bracket Fighter 2400 | $450 | $37.00 | |
| 46-BF28RE | APS - Bracket Fighter 2800 | $450 | $37.00 | |
| 46-RF30RE | APS - Race Fighter 3000 | $525 | $37.00 | |
|
Dodge 5.7L "Hemi" Performance TQ Converter |
||||
| HEMI45S |
APS 5.7L "HemiVerter" - Performance TQ Converter ($125 Refundable Core Charge will be added) |
$450 | $37.00 | |
|
Dodge/Chrysler 3.7L Performance TQ Converter - NEW |
||||
| 37CONV | APS 3.7L Performance TQ Converter (2400 Stall) | $460 | $37.00 | |
|
Dodge/Chrysler 4.7L Performance TQ Converter - NEW |
||||
| 47CONV | APS 4.7L Performance TQ Converter (2400 Stall) | $460 | $37.00 | |
|
Dodge/Chrysler 3.9L V6 Performance TQ Converter - NEW |
||||
| 39CONV | APS 3.9L V6 Performance TQ Converter (2000-3000 Stall) | $450 | $37.00 | |
|
** 3.7L, 3.9L, and 4.7L Converters have a $125 refundable core charge ** |
||||
|
** Stall Speeds based on BRAKE Stall - True Stall will be slightly higher ** |
Custom Converters for other applications available as well - Email for more information
Break in on converters is 5000 miles to achieve maximum performance. That does not imply that you can not have fun immediately, just expect more performance as it wears in. This is due to the exceptionally reliable and HD Torque Converter Clutch (Lockup Clutch). A lesser clutch, such as Kevlar or other inferior TQ converter clutches, will give you a faster break in at the expense of long term reliability.
Please note that modifications to your factory transmission calibrations may affect the emissions output of your vehicle. All parts offered by APS Precision are not Emissions Legal and do not carry any CARB or 50-State approval. They are for racing or off-road use only. APS Precision is not responsible for any emissions testing issues you may encounter or any transmission problems due to third party installation mistakes from any of our parts offered. APS Precision reserves the right to change engineering design, materials (updated or upgraded), specifications, and calibrations at their sole discretion.
Custom built Torque Converters are non-returnable and non-refundable as they are built to your specific application. We only accept returns if they are defective.
APS Precision - Warranty Information Sheet (PDF)
APS Precision,
LLC.
P.O. Box 2402
Saratoga, CA 95070
Mobile: (408) 205-8500
Office: (408) 374-1217
Information:
info@apsprecision.com
Sales: sales@apsprecision.com
Support: support@apsprecision.com
©2002, 2003, 2004, 2005, 2006 APS Precision Mfg., LLC.