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Compu-Flow Valve Bodies

ATI Compu-Flow Valve Bodies provide the most accurate and efficient hydraulic controls possible for automatic transmissions. Years of research and testing have enabled ATI to design optimum oil circuitry for all popular transmission applications.

COMPU-FLOW STREET/STRIP VALVE BODIES While any of ATI's Compu-Flow Valve Bodies are "streetable", the Street/Strip Compu-Flow is the #1 choice. These valve bodies provide full automatic shifting if left in drive and manual shifting if low is selected. In either mode, the Street/Strip provides a firm, clean shift.


Wicked Quick® Lightweight Billet Aluminum PG Valvebody 203051

Amp draw on Solenoids at 12 & 16 volts
Solenoid
Part #
Current
at 12v
Current
at 16v
941030
7.65
7.95
941011
1.13
1.49


Wicked Quick® Lightweight Billet Aluminum T400 Valvebody - 403091

 



COMPU-FLOW REVERSE MANUAL VALVE BODIES
Our Compu-Flow Reverse Manual Valve Body shifts opposite the OEM units away from neutral when up shifting (P-R-N-1-2-3). There is no automatic shifting. It will leave in the selected gear allowing street driven cars to move off in 2nd or 3rd in slippery conditions. The governor and related components are eliminated, as well as throttle pressure, cables/vacuum lines and linkages. All units freewheel if you lift in low gear; no engine breaking. (Note: All Turbo units freewheel in 2nd gear except #353400 for the T-350) This valve body is not recommended for the Powerglide since it must pass through low to get to neutral.

COMPU-FLOW FORWARD MANUAL VALVE BODIES The Forward Manual Compu-Flow is available with the same features as the reverse manual units, except for the standard OEM shift pattern (P-R-N-3-2-1). Engine braking is available in all gears. The Forward Valve Body provides a generally slower ET for drag racing since the band or clutches are on in low gear.

COMPU-FLOW REVERSE SAFETY TRANSBRAKES These valve bodies have all the same features of the highly successful ATI transbrake and they also have the added feature of reverse safety so that reverse cannot be selected accidentally or inadvertently. The vehicle will only engage reverse gear when reverse is selected and the transbrake solenoid is engaged.

COMPU-FLOW TRANSBRAKES
Lock your race car on the starting line for hard, consistent launches. All Compu-Flow Transbrakes are reverse pattern, except for PG applications. These units are fully manual - no automatic shifting. The TH400 unit #403080 has a low draw - 1 amp - solenoids operating pilot circuits. On internal brakes, the solenoid is inside the trans. An ATI transbrake valve body is an excellent choice for bracket and delay box users.

ATI Products at PRI Show VIDEO: ATI's T400 Wicked Quick Valve Body
PowerTV talks with JC Beattie about the Wicked Quick Billet Aluminum T400 Valve Body at SEMA.

Repair services and wet testing are also available for ATI Valve Bodies. Consult your Sales Technician.

GM Powerglide
Part #
Price
MANUAL - FORWARD PATTERN WITH ADJUSTABLE REGULATOR
203200
$329.00
(FORWARD) REVERSE SAFETY W/TRANSBRAKE EXTERNAL MRT ADJUSTABLE REGULATOR - GREAT FOR PRO TREE
203050
$419.00

Wicked Quick® BilletAluminum Powerglide Valve Body
Comes standard in Superglide 4 and 2! Perfect for any Powerglide Transmission and a full 7.4 lbs lighter than OEM - weighs 6.8 lbs as is, and 8.4 lbs with solenoid, adapter, filter and spacer. Titanium Bolt option saves another 1/2 pound!

• Direct bolt-on replacement
• Direct replacement for the OEM unit
• Adjustable pressure regulator - U.S. Patent #7,780,564
• ATI Manual Valve - Part #203581
• Fully 5 axis CNC-machined
• Minimum flow restriction passages
• Ultra fast brake!

DESCRIPTION
Part #
Price
WICKED QUICK VALVE BODY
203051
$695.00
TITANIUM BOLTS
950310T
$89.00
SPACER FILTER (INCLUDED W/203051)
203563B1
$39.00
SPACER FILTER W/SCS-30 PORT
203563B2
$39.00
ALUMINUM SEPARATOR PLATE
203115A
$35.00
FILTER SPACER GASKET FOR 203051
203562B
$3.00


GM Powerglide Valve Body Components
Part #
Price
FOR INTERNAL TRANSBRAKES 203330, 203350, 203070
SOLENOID ONLY - 3/32"
BRAKE VALVE RETURN SPRING
WIRE CONNECTOR, STANDARD
WIRE CONNECTOR, SHORTY

941011
203450
940330
940340

$74.00
$7.15
$9.39
$12.95
FOR EXTERNAL TRANSBRAKES 203250 AND 203050
TRANSBRAKE VALVE
BRAKE VALVE RETURN SPRING
SOLENOID DELETE PLUG ( for solenoid removal with 203250 transbrake )

203440
203460
207342

$31.22
$7.38
$24.95
FOR ALL ATI EXTERNAL TRANSBRAKES
SOLENOID WITH ADAPTER
SOLENOID ONLY

203480
941030

$119.00
$95.00
FOR COMPU-FLOW VALVE BODIES
SEPARATOR PLATE FOR COMPU-FLOW VALVE BODY #203200
SEPARATOR PLATE FOR COMPU-FLOW VALVE BODY #203220

203210
203230

$37.11
$37.11
FOR ALL POWERGLIDE VALVE BODIES
GASKETS (3 SETS)
PRESSURE REGULATOR SPRING (ATI design for valve bodies without boost valve)

203410
203490

$24.64
$12.61
VALVE - MANUAL - WIDE LAND
$22.95

T400 Wicked Quick® Billet Aluminum Valve Bodies
• Direct bolt-on replacement
• Fully 5 Axis CNC-Machined
• Ultra Fast Fluid Release Brake
• Minimum flow restriction passages

DESCRIPTION
Part #
Price
REVERSE MANUAL, TRANSBRAKE VALVE BODY
REVERSE MANUAL, TRANSBRAKE W/ CLEAN NEUTRAL, BAND APPLY
REVERSE MANUAL, 1-2 TRANSBRAKE
REVERSE MANUAL, 1-2 TRANSBRAKE W/ CLEAN NEUTRAL
REVERSE MANUAL, LOW BAND APPLY TRANSBRAKE
FORWARD PATTERN FOR 2-SPEED ONLY, 2-3 BRAKE
403091
403091CN
403085
403085CN
403087
403086
$695.00
$695.00
$695.00
$695.00
$695.00
$695.00
T400 WICKED QUICK BILLET ALUMINUM VALVE BODY PARTS
SEPARATOR PLATE
SOLENOID WITH ADAPTER - TRANSBRAKE
SOLENOID - TRANSBRAKE
TITANIUM BOLT KIT - WICKED QUICK
GASKETS (REQUIRES 2 GASKETS PER VALVE BODY)

403092
403480
941030M
950312T
403222

$35.00
$188.00
$116.00
$64.00
$4.95 EA

T400 E-Quick® Electronic Shift Billet Aluminum Valve Bodies
Great for racers who can’t use an air shifter and need computer controlled shifting, the E-Shift is a Reverse manual, (PRN123) billet aluminum valve body for high performance applications with Low Gear Band Apply. Provides repeatable computer
controlled error free shifting for consistent performance every run. Controller not required.

DESCRIPTION
Part #
Price
E-QUICK REVERSE MANUAL VALVE BODY
403070
$899.00


GM TH400
Part #
Price
T400 - REV MANUAL - BILLET ALUMINUM - BAND APPLY - CLEAN NEUTRAL - P(RN)123N - FOR STOCK ELIMINATOR
403062CN
$569.00
TRANSBRAKE - REV PATTERN - INTERNAL SOLENOID - '64-'92 - NO ENGINE BRAKING IN LOW
SOLENOID WITH ADAPTER FOR COMPU-FLOW BRAKE
SOLENOID ONLY FOR #403080
ADAPTER ONLY FOR #403080
SOLENOID ASSEMBLY FOR ALUMINUM TRANSBRAKE VALVE BODY
403080
403621
941011
403620
403099
$499.00
$121.03
$74.00
$43.83
$219.00
STREET / STRIP - FORWARD PATTERN VALVE BODY - '64-'86 - FIRM NOTICEABLE SHIFTS
MANUAL - REVERSE PATTERN VALVE BODY - '64-'86 - ENGINE BRAKING IN LOW
MANUAL - FORWARD PATTERN VALVE BODY - '64-'86 - ENGINE BRAKING IN LOW & 2ND
403100
403200
403300
$239.00
$299.00
$249.00
SEPARATOR PLATES - ALUMINUM - FOR VALVE BODY #403200
GASKET - REVERSE PATTERN (3 SETS)
GASKET - MANUAL / AUTO & FORWARD PATTERN (3 SETS)
GASKET - TRANSBRAKE (3 SETS)
403211
403220
403230
403250
$35.00
$24.13
$24.13
$32.74
Repair services and wet testing are available for all ATI Valve Bodies.

The Transbrake’s main function is to unload the chassis while staging to make the car shock the suspension and hook consistently. The brake will accomplish this at a mere 1000 RPM. Going higher on the brake only serves to super heat the oil in the converter and make for inconsistent launches.

You should find an RPM that your engine is comfortable with (no stumble or hesitation), hopefully below 4000 RPM. Going higher on the brake will reduce the reaction time of the car, automatically putting you closer to the light. Then, the only reason for you to go higher on the brake is if you are late on the light. If you run a delay box, be sure to remove the time delay before testing. Many people have over a second in the delay box and stage the car at 5500+ RPM.

The lower the RPM at which you launch the car (relative to the stall speed of the converter), the more free energy the converter gives you. Plus, your converter and transmission will live longer without the excessive heat. Many large, long stroke engines will run faster from a very low stage RPM.

Many of our 350 cubic inch Super Stocker racers run the quickest from 1800 RPM. The converter will flash to its stall speed no matter at what RPM you stage, provided the engine responds properly to that RPM. Engines with two carbs and big plenums on the intake system will require higher RPMs to respond consistently. Again, going higher on the torque converter only serves to reduce the reaction time of the race car.

True stall speed occurs when two things are present at the same time. They are:

  1. The maximum amount of torque (power) is input to the converter.
  2. The maximum amount of load (work) is present for the converter to accomplish. Perfect example: The car is in a wheel stand climbing the ring gear and has not moved an inch forward while stall speed is occurring.

When checking stall speed using the transbrake, it must be checked on the starting line. Stage the car, deck the throttle, look at the stall speed, then release the brake and let the car leave. Most converter damage is caused by lifting the throttle from stall speed. Wide open throttle on the brake is extremely detrimental to the health of your converter.



GM TH350
Part #
Price
TH350 - STREET / STRIP
TH350 - MANUAL - FORWARD PATTERN
TH350 - W/ BAND APPLY - MANUAL - REVERSE PATTERN
TH350 - NON-BAND APPLY - MANUAL - REVERSE PATTERN
TH350 - TRANSBRAKE
SEPARATOR PLATES - FOR VALVE BODY #353080
SEPARATOR PLATES - FOR VALVE BODY #353100
SEPARATOR PLATES - FOR VALVE BODY #353200
SEPARATOR PLATES - FOR VALVE BODY #353300
GASKETS - STREET/STRIP (3 SETS)
GASKETS - TRANSBRAKE P/N 353080 (3 SETS)
353100
353300
353400
353200
353080
353081
353110
353170
353310
353230
353090
$239.00
$239.00
$279.00
$279.00
$529.00
$35.00
$37.47
$37.47
$37.47
$24.13
$24.13

GM 700R4
Part#
Price
700R4 - MANUAL - REVERSE PATTERN
703200
$395.00

Chrysler TF727 & TF904
Part #
Price
TF727 & TF904 - '66 - '70 - STREET / STRIP - 4 BOLT TOP PLATE
TF727 & TF904 - '71 - '80 ( NON-LOCK UP ) - STREET / STRIP - 6 BOLT TOP PLATE
TF727 & TF904 - '66 - '80 ( NON-LOCK UP ) - MANUAL - REVERSE PATTERN
TF727 & TF904 - '66 - '80 ( NON-LOCK UP ) - MANUAL - REV - LOW BAND APPLY
TF727 & TF904 - A&A TRANSBRAKE - REVERSE PATTERN - LOW BAND APPLY
TF727 & TF904 - SEPARATOR PLATES
723100
723110
723200
723200B
723080
723210
$249.00
$259.00
$279.00
$325.00
$749.00
$35.00


Diagnosing transbrake solenoid issues

  1. Make sure you have a good ground to the chassis of the car.
  2. Run a temporary wire directly from the hot side of the battery to a new switch to the solenoid. If this fixes the problem, you have a ground or wire issue.
  3. If this doesn’t fix the problem, pull the solenoid and valve. Inspect them to make sure there is no binding in the solenoid or valve.
  4. Polish the valve if it has any sharp edges.
  5. Test the solenoid off the car. If it still doesn’t work, it’s time for a new solenoid. Call ATI’s Sales Technicians for assistance.
 
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