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PATC Innovations

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PATC Innovations

1991 – Started building performance 700R4 transmissions on a local basis.

1999 – Developed a true high performance 700R4 transmission known as the 700 Raptor and sold on the Internet. Every year stronger parts are added to this transmission as they’re developed. Today this is the transmission of choice for Street Rods. As of now two to three thousand people visit one of our performance transmission websites everyday making PATC the number one performance transmission destination on the Internet. 

2001 – Developed a non-electronic 4R70W transmission by placing a total 4R70W transmission in an AOD transmission case. This transmission is known as the A O Dominator and can handle seven hundred and fifty horse power. Now you can have all of the advantages of a late model overdrive transmission without using a computer. This transmission can be ordered with AODE or 4R70W gears.

2002 – Developed a high performance, full manual shift, non-electronic 4L80E transmission. This transmission is known as the Quadzilla and is good for at least twelve hundred horse power. This transmission was needed because as time goes on motors are being built with more and more power. This GM transmission can also be installed on a Ford big block motor. These and our other performance / heavy duty transmissions are shipped all over the world. This year the transmission performance parts department moved into it’s new building. 

  2003 – Developed a complete kit to convert 1998 to 2002 F-Body cars with LS1 motors and 4L60E transmissions to TH400 transmissions. This was needed because the power levels of the LS1 motor had exceeded the ability of even the strongest 4L60E transmission to handle. This kit comes complete with a 7 bolt bell housing bolt pattern on a TH400 transmission. 

   

2004 – PATC helped in the development of the drive train for the Dobbertin HydroCar project. This will be the worlds fastest HydroCar. The HydroCar has a 4L80E transmission. 

2004 – Developed a non-electronic A518 transmission that works without the use of a computer or toggle switch for overdrive and converter lock-up. Up until then people would shift into overdrive with a toggle switch. This was needed to convert three speed transmissions to overdrives without driving down the street flipping a switch on and off. This year our performance transmission parts department had to be expanded to twice the square footage. 

 HPIM1323.JPG (156881 bytes) Article about PATC’s 727 to 518 innovation in the July 2006 issue of Hemmings Muscle Machines page 108.

2004 – Developed the Combo Kit. Save on these kits by buying in combination for a quantity discount. This is a way to buy performance automatic transmission parts in a package deal, all at the same time, at a discount. You can add additional parts to the Combo Kit at the same discount rate, if bought at the same time for the same type transmission. 

 

2005 – Developed an adapter kit to convert late model, four wheel drive, GM 4L60E transmissions to 4L80E transmissions. This was needed because a 4WD, LS1 type, supercharged Tahoe can eat a 4L60E transmission for lunch. A built 4L80E transmission is twice a strong as a built 4L60E transmission. This transmission with lock-up torque converter can handle one thousand horse power. Swap your 4L60E transmission to the much stronger 4L80E transmission with our new double strength case hardened output shaft and adapter kit. You can use the computer you have now on 1998 up models with the use of our #10X wiring harness. The transfer case you have now can be used as is and will be moved 1 3/4 inches to the rear. 

         

2005 – Another PATC first. Developed a 245MM torque converter for 3.8L GM L67 supercharged motors with the 4T65E-HD transmission. This torque converter can be used with the stock L67 flywheel without the need to drill new torque converter bolt holes in the flywheel. Bolt the smaller 245MM torque converter to the existing flywheel without any changes. Stall speeds of 2200 to 4000 RPM can be ordered. The larger converter bolt circle is built right on the smaller converter. This is done with an adapter ring built onto the torque converter. Up until 3-18-2005 new converter bolt holes had to be drilled in the flywheel that was built for the 258MM converter. 

2005 – Developed ways to convert 46RH / RE, 47RH / RE transmissions to high performance / heavy duty 48RE transmissions. This is accomplished by using 48RE internal hard parts in conjunction with other extreme duty parts. We offer this level 4, 48RE / RH transmission in both gas or diesel models. This transmission is known as the Ramzilla. The gas 48RE / RH transmission has a 10 inch billet lock-up torque converter. 

  2005 – Developed a C6 Low Drag / Wide Ratio planet gear set that will work with an Alto wide Power Band. Other wide ratio gear sets of this kind will not work with a wide band. 

  2005 – Helped develop an adapter to install a billet high stall torque converter on a 2005 up SRT10 Dodge with a Viper motor and 48RE transmission. This is a 10 inch converter with a 12 inch clutch instead of a 13 1/2 inch Viper converter. 

2006 – At this time we have several Extreme Duty parts under development that will bring 700R4 / 4L60E transmissions to the next level. At some point in the near future we’ll be able to build a 700R4 / 4E60E transmission capable of handling 968 foot pounds of torque.

HPIM1215.JPG (234500 bytes)  HPIM1237.JPG (56167 bytes)  HPIM1242.JPG (895643 bytes)  HPIM1433.JPG (436417 bytes)  HPIM1434.JPG (748954 bytes)  HPIM1435.JPG (562772 bytes) 2006 – 4L80E in C4 Corvette Adapter Kit (1984 – 1996). Swap your 700R4 / 4L60E transmission to the much stronger 4L80E transmission with our new double strength case hardened output shaft and adapter kit. At this time we have in development an adapter kit for the C4 Corvette to replace your 700R4 / 4L60E transmission with the much stronger 4L80E transmission. This 4L80E transmission will be the same length as your 700R4 / 4L60E transmission making it possible to reuse your existing 27 spline driveshaft and C-beam. This is the worlds first 700R4 / 4L60E to 4L80E swap direct replacement. All that needs to be changed on the 4L80E transmission is the tail housing and output shaft. The full manual shift model works without a computer. We are also working on a C4 Corvette T-56 to 4L80E adapter kit. 

2006 – Developed a full line of Alto Red Eagle Power Packs for Dodge RWD transmissions. 

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2007 – Developed an adapter and output shaft to install a GM 4L80E transmission in a 4WD Dodge truck. This was needed as a companion to the Cummins 4BT / 6BT to Chevy 4L80E / 700R4 / 4L60E / TH400 transmission adapter we sell. The Cummins to GM adapter must be used as a set with the Cummins to GM billet flexplate. 

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2007 – Developed an inexpensive heavy-duty conversion crossmember for 1967- 1969 F-Body Camaro / Firebird and 1968 – 1974 X-Body cars. These crossmembers are made for TH400, 700R4, 4L80E, 200-4R and early 4L60E transmissions. Made from 1 5/8 inch thick wall round tubing. These crossmembers will except up to a 3″ exhaust pipe. After the crossmember is installed it can be removed and replaced with two bolts. Comes with 2 mounting brackets, 2 grade eight bolts and 2 lock nuts.  

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2007 – Developed a performance torque converter for 2005 up 4 Liter V6 Mustangs with the 5R55S transmission. This converter will stall at 3000 RPM and has all bearing construction, furnace brazed fins plus a carbon fiber clutch lining. No trade-in on this one. In the past you had to send your torque converter in to be redone, no more. Be one of the first to own this hot V6 stall converter. You’ll feel a big difference on the first take off. This torque converter comes with a new OEM pre-drilled flexplate as a two piece set. This torque converter will lower your 60 foot time .2 seconds and the 1/4 mile time by .5 seconds. The competitions 3000 stall speed converter was tested in the 1/4 mile then removed, and a PATC 3000 stall speed converter was installed and tested, resulting in a .2 second lower time in the 1/4 mile. This was due to the PATC converter being a smaller diameter than stock. No down time, keep your old stock converter. No core charge. Can be special ordered in stall speeds of 2000 to 3500. Dollar for dollar this converter will do more for your time than any other part.

700R4 / 4L60E “Power Gear”

2008 / 2009 – “The Next Big Thing”. PATC has developed a new 6 pinion planet gear set for 700R4 / 4L60E transmissions. This will be the biggest thing in 700R4 advancements in years. These will have a 2.84 to 1 first gear, 1.56 to 1 second gear, 1 to 1 third gear and .70 to 1 overdrive ratio. This close ratio 700R4 gear set will have a 11.72% less RPM drop between 1st and 2nd than the wide (stock) ratio gear set. In other words the close ratio gear set will only have 88.28% as much RPM drop as the wide ratio gear set. This is what people have been asking for, for years. These will work on any 4L60E type transmission without a gear ratio error code, if the PCM is modified. The carrier is made from E4340 billet steel and the pinion gears are 9310 steel. With the billet sun gear made from 9310M steel. This gear set is used to reduce torque multiplication / rotating speed in the transmission in first gear. This improves track applications that overpower the rear tires upon launch. This is common with numerically high final drive ratios. Now you will have a choice between the wide ratio or the new close ratio gear sets. In first gear this close ratio gear set has a 7.2% numerically lower final drive ratio. It has been reported that the 2.84 gear set could lower your quarter mile time as much as 4/10 of a second over the 3.06 gear set. This gear set has been in research and development for over one year. You might ask why 6 pinion gears. The answer is because high horse power motors can eat the small needle bearings up in the pinion gears. The solution is to spread the load over 50% more needle bearings and at the same time building the planet gear set out of a higher grade steel. The first 50 are in production now and the approximate release date is May 2009. We have finished the testing in our test truck with the following findings. The gear noise in manual low is reduced by at least 50% compared to a stock OEM planet gear and at full throttle there was no noticeable power drop on the 1st to 2nd shift. Testing will begin later this week in an 1100 horse power C5 Corvette. The car runs 9.56 seconds now. Nothing will be changed but the front planet gear then tested to see the difference. Testing should be completed by 6-1-2009.

Here are the test results from the weekend of May 30-31, 2009. Both where run for the base time then nothing was changed but the front six pinion planet gear then retested to determine the time difference.

The first car is a C5 Corvette with an 1100 horse power blower motor. The best time with the factory planet gear was 9.56 and the time with the new 2.84 six pinion planet gear was 9.25. This is a whopping 3/10 of a second faster in the quarter mile. The time would have been even better if the 3-4 clutch wouldn’t have been slipping. Perhaps as much as 1/2 second better then the factory gear ratio.

The second test was with a 460 horse power all-wheel-drive Chevy Cyclone. The best time with the factory planet gear was 13.10 and the time with the new 2.84 six pinion planet gear was 12.90. This is a whopping 2/10 of a second faster in the quarter mile. There was 300 to 400 less RPM drop on the 1-2 shift with the new gear ratio. This truck didn’t have a problem with tire spin on take off because it has all -wheel-drive. The 2/10 of a second was picked up on gear ratio change only, not on take off.

Update 6-3-2009: Three more reports have come in with 3/10 of a second or more off of their E. T..

 

Transmission Ratios 1st to 2nd Ratio Drop 1st Gear 2nd Gear 3rd Gear 4th Gear OD
Turbo 350 1 2.52 1.52 1 N/A
Turbo 400 1 2.48 1.48 1 N/A
200- 4R 1.17 2.74 1.57 1 0.67
700R4 / 4L60E with PATC close ratio gear set. Low geared 1st with 11.72% less 1st to 2nd RPM drop than the wide ratio gear set. This is the same ratio as a 4R70W transmission. 1.28 2.84 1.56 1 0.70
700R4 / 4L60E 1.43 3.06 1.63 1 0.70
4L80E 1 2.48 1.48 1 0.75

 

 


 

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_DSC2542.JPG (493143 bytes) _DSC2540.JPG (438730 bytes) _DSC2615.JPG (205940 bytes) 2010 – Developed the answer to a 2005 up 48RE broken case replacement. Now you can use an earlier model case on a 2005 up 48RE transmission with an electronic throttle valve actuator. The 2005 up 48RE cases sell in the $500.00 range. 

_DSC2620.JPG (94932 bytes) 2010 – Developed a 47RE / 48RE Bellhousing Spacer. Due to the many aftermarket torque converters and aftermarket flexplates on the market, sometimes the correct clearance between the torque converter and flexplate can’t be obtained. This spacer is just less than 1/8 inch thick and comes with two new extended dowel pins. This part is the answer to a long standing problem.

PATC is on the cutting edge of performance rear wheel drive American transmission development. We work with different manufacturers in the development of stronger parts. We have the most complete inventory of performance transmission parts for Ford, GM and Dodge than you’ll find anywhere else. Using these parts we have developed performance / heavy duty transmissions in many different levels and types. This is why three to four thousand people visit one of our seventeen performance transmission websites everyday, making PATC the number one performance transmission destination on the Internet. These websites are updated sixteen hours per day seven days a week. We don’t just sell transmissions and parts, we test them in our test vehicles on the street and at the drag strip. We have the hard to find performance transmission parts all in one place and in stock. We sell the total package, not something that will cost more in the long run or cost more after you buy everything you need one part at a time. Our customers know if we don’t have what they need we know who does. On this Website you will find many performance / heavy duty automatic transmission parts the others don’t sell.

 

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