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PowerMaxCR with R49

PMCR R47 R49
Your Price: $964.00
Sale Price: $864.00
You Save: $100.00 (10 %)
Item Number: PMCR 03
Manufacturer: TST Products, Inc


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 Programs in ALL NEW POWERMAXCR™ R49's

 What it does

 • Economy Setting

 Geared toward fuel economy
 • Standard Setting  TST's Original Programming
 • Early Twins Setting  03-04 Twin Turbo Programming
 • Late Twins Setting  04.5-06 Twin Turbo Programming
 • Adjustable Timing Setting  User Control timing up to 18 degrees
 • Auto Cool-Down  Turbo Cool Down Control
 • Adjustable Rail Pressure  Control added rail from none to ...


Important Note for 2006/2007 Dodge Ram trucks.


TST has been running the PowerMaxCR (PMCR) since October '02 and finally released it for sale in December of '03 for the Cummins Common Rail Ram Diesel. 


We have been testing stock Dodge common rail trucks since May '02 and have had about a hundred different '03, '04, '04.5, & '05 Rams on our dyno, HO’s, Automatics, and one 5 speed California 235 hp version.  Except for the California truck, we are seeing much better stock power to the ground than the previous engines.




Stock advertised power and torque  

 Stock observed load dyno HP & TQ at the wheels

























The maximum power gains we've seen to date is an extra 195 whp (wheel horsepower) at 2900 rpm and an extra 600 pound-feet of torque at 1700 rpm.  The only power upgrade was our plug-in computer, no wires to cut or Scotchlock.  These numbers were obtained with the stock turbo (added a boost elbow to turn boost up to about 40 psi to help reduce exhaust gas temperature), stock exhaust, and stock air filter (enlarged the opening into the air filter box).  We also had to install an aftermarket clutch as the stock clutch gave up at about 800 lb-ft.  A pusher fuel pump was added in series with the stock lift pump when we went above 120 extra wheel horsepower as engine would miss without it.


We are advancing timing and extending the open time in the injector solenoid on the main injection pulse.  We do not extend the pilot pulse and have user adjustable fuel rail pressure.  Most competitive computers currently turn up rail pressure and they are very limited to power and torque increases before reaching the rail pressure relief valve limit.  


The PowerMaxCR has 10 power levels @ 2900 rpm and 10 torque levels @ 1600 rpm that are adjustable under power on the fly.  Setting the power level and the torque level on zero turns truck power back to stock.  Power level #1 advances timing only for good fuel mileage, reduced exhaust temperature, and adds about 30 wheel horsepower but does not add extra fuel.  Power levels 2 thru 9 add increasing amounts of fuel and 20 horsepower per step at 2900 rpm.  Each torque setting step adds 60 additional foot pounds of torque at 1600 rpm. 


We offer the PowerMaxCR computer with digital boost and pyro built in such that maximum exhaust temperature can be user selected.   The PowerMaxCR is also offered without gauges for those who wish to use analog gauges.  The unit PowerMaxCR without gauges retails for $725 and the unit with built in gauges retails at $899. 


Towing with the PowerMaxCR will be limited to about 650 to 700 pound-feet of torque (level 3 or 4 on the torque setting) for stock automatics.  TST recommends a heavy duty input shaft, a valve body change, and a strong torque converter to take that torque on up to 1000 pound-feet to use the full torque of the PMCR.  Stock manual clutches are limited to about 800 pound-feet of torque (level 4- 6 on the torque setting).  Clutches are available that permits using the full torque available from the PMCR. 


Exhaust temperatures will limit towing total wheel horsepower to about 340 to 360 wheel horsepower (power levels settings 3 to 6).  Larger turbos are the only thing we have found to reduce exhaust temperatures such that more towing power can be used (maybe 20 to 40 more horsepower), but larger turbos typically have surge problems at lower engine speeds and high altitudes loosing some of the gains.  Twin series turbos are the only setup that keeps exhaust temperatures safe with the PMCR on its top setting, however these are expensive and would typically require studding of the head to keep head gaskets from leaking.


Advancing timing with power level 1 or above should improve fuel mileage 5 to 10 % if the driver can resist the temptation to use lots of power.  Don't be misled by the in-cab mpg meter in that it does not know about the extra fuel we add thus it shows really big improvements in mileage.


Early PowerMaxCR's would set OBD2 codes in some case on some trucks but the newer units appear to have solved most of the code issues.


The earlier PowerMax computers for '98 to '02 Rams diesels will not work on the '03 and later engines. 


For installation we Velcro the PowerMaxCR computer to the lid of the Fuse & Relay Center underhood.  There are two or three injector plugins to be made on the driver side of the valve cover, a MAP sensor plugin, a camshaft sensor plugin, a crankshaft sensor plugin, three 12 volt connections inside the Fuse & Relay Center, and a ground connection.  The wired remote control plugs in to the PowerMaxCR computer and that wire is routed inside the cab.  There are no wires to cut or splice.


These units work on the new 04.5/05 Ram 325 hp/600 torque and they appear to work very well.  The wastegate setup is different with the 325/600 engine and it takes a few more minutes to connect than with the 03 and 04 engine.  


2 Year Warranty. 


TST's PowerMax and PowerMaxCR computers are proudly made in the USA


Our mechanical boost and pyro gauges work on the common rail Rams (see those on our website: Gauge Kits).


Installation Instructions for 03-06



Product Reviews

(10 Ratings, 6 Reviews) Average Rating:
TST/ smarty stack
Brendon (Pendleton, Or) 5/16/2010 4:07 AM
I own a 2003 CR dodge. My CP3 is modded and I am runnin 150hp injectors with studs and 62/71.14 over S472 1.10 ar twins with good low pressure fueling upgrades. I have been running a smarty POD ever since I bought it and that was nice, but I felt like I needed more. I bought a TST R49 to stack with the smarty and all I can say is it has to be one of the best stacks known to man. I have my smarty on 8 with stock timing and the TST on 2/0. I have done back to back runs, running one or the other and to tell the truth I think that they were made for each other. Smarty on 8 adds makes power via extending the duration of injection events and the TST does the rest without extending the pre-injection event. Adding up to 12* of timing dynamically and fuel where the smarty tends to drop off. My mileage has gone up and my fun factor is through the roof. I can not say enough about the TST. When I have to tow I put the smarty on stock and the TST on 3/3 and the smile remains all day long.
Great product!
Sailpipes (Whidbey Island, WA) 11/26/2009 4:14 AM
I've had my PMCR for about a year and a half and love it. Delivers awesome power when you want to play, great fuel economy for road trips and runs nice and cool on the lower settings for towing.
Wake up!?!
Peter Gross (Scaly Mountain, NC) 6/4/2009 10:32 AM
All the difference in the world! Fantastic top end, you can feel it like passing gear. Wake up?!? Running this with the Smarty...the Smarty has great low end but needs the PowerMax to wake up the top end. Very easy to install. Great customer support. I just can not do without the cool down feature. Not just time but you can set the temp as well. The best and probably the most popular stack...PowerMax and Smarty. Used to have Smarty - Edge Attitude stack. Replaced Edge with PowerMax 49A...what a difference. Sold the Edge on ebay! 604 RWHP at 1165 pounds of torque.
PowerMaxCR with R49
JohnKlos (Unknown) 11/13/2006 5:04 PM
Fantastic way to make my Dodge perform better, However, I am concerned about fuel mileage. Does this unit increase mileage? Thanks
TST with R49
Crump (Unknown) 3/25/2007 8:15 PM
It really adds the power. Runs great with a Smarty software for optium results waiting for the new fix on the rail pressure harness. But overall the best compared to my old bullydog and quadzilla setup. Thanks