Its one thing to dyno your car at a shop, but it can be intimidating to dyno your car in f
Those of you who regularly read Mopar Muscle have likely realized that we've replaced our annual engine dyno competition with a new contest, the AMSOIL/Mopar Muscle Numbers Don't Lie Dyno Showdown. And while we really enjoyed challenging engine builders to make big power on the dyno at Comp Cam's research facility, watching Mopar owners back up their horsepower claims on a chassis dyno at the Mopar Nationals has proven to be fun as well. This was the first year of our contest and it already proved to be a big hit, attracting plenty of fans to the manufacturer's midway to watch these powerful Mopars run.
Rockett Brand Racing Fuel was an additional sponsor of this year’s contest, and provided f
This year we had twenty competitors enter their street cars in one of two classes in the competition, one for cars with power adders such as nitrous-oxide, turbochargers, or superchargers, and one for normally aspirated Mopars. This month we'll feature six of the competitors in random order, and show you what combination of parts they used to make their power on the dyno. If you were at this year's Nats you likely already know who won each class of our contest, and we also posted the final results on our website, Facebook, and Twitter. Be sure to watch future issues of Mopar Muscle to see full feature articles on the winners of the power-adder and normally aspirated classes of the AMSOIL/Mopar Muscle Numbers Don't Lie Dyno Showdown.
1966 Plymouth Belvedere
Terry Brown of Canton, Georgia, has been a Mopar enthusiast for some time, but her real job involves only one horse[power] at a time as an equine professional, show jumper, and horse trainer. For this year's contest, however, she knew that it was going to take significantly more than a single horsepower to have a chance at winning our dyno shootout, so she brought her '66 Belvedere, powered by a 500-inch Hemi built by Prism Racing. Equipped with a Comp roller camshaft, ported aluminum heads, MSD ignition, and a single Holley Dominator, Terry's Belvedere is a beautiful blend of power and performance, with the look of a classic Super Stock race car blended with modern components such as the cowl induction hood and stylish wheels. Putting the power through a 727 with an 8-inch converter, and Dana 60 rear end, this Belvedere laid down an impressive 578 rear-wheel horsepower for the contest lead until Saturday afternoon. Placing second in the normally aspirated class, we congratulate Terry and thank her for bringing her beautiful Belvedere to the AMSOIL/Mopar Muscle Numbers Don't Lie Dyno Shootout.
Terry Brown’s stunning ’66 Belvedere was finished up just in time for the Mopar Nationals, and at 578 horsepower to the rear wheels has the power to back up its intimidating looks. This car will be driven on the street, but Terry also plans passes down the quarter mile in her Belvedere. This author can attest that just like her horses, this will be one fun ride.
2001 Dodge Dakota R/T
Entering our class for power-adder vehicles, Brian Akers of Jacksonville, Florida, brought his unique, nitrous-oxide equipped '01 Dodge Dakota to our competition. Brian is a senior welding instructor at the Tulsa Welding School in Jacksonville, and his prowess with a welder shows in much of the fabrication featured on his Dakota. Brian's truck is powered by a 408-inch small-block featuring a forged crankshaft, Eagle H-beam rods, and Diamond forged pistons for a compression ratio of 10.0:1. A .544-inch lift Comp cam is utilized, and Mopar Performance cylinder heads with stainless steel 2.08-inch intake valves and Harland Sharp roller rocker arms combined with an M-1 intake top this potent small-block. With a 2,800 rpm stall converter and B&M shift kit, Brian's Dakota has run a best time of 12.60 seconds in the quarter mile with 3.92 ratio rear gears. Running a single stage, 150 horsepower nitrous kit Brian's Dakota made a respectable 417 horsepower at the rear wheels even with the disadvantage of low bottle pressure.
Brian Akers' Dakota owners showed up in force for our first annual Dyno Shootout, and this ’01 model owned by welding instructor Brian Akers made a stout 417 rear-wheel horsepower. With plenty of modifications to the exterior, suspension, and engine, this Dakota looks just as good as it runs.
1968 Dodge Coronet R/T
Tom Herrington brought his 500-inch Wedge equipped '68 Coronet R/T from Fairview, Pennsylvania, to enter the normally aspirated class of the showdown, and works as a paint and body tech, which explains the slick black paint on his B-Body. Tom's stroked 400 now displaces 500-inches, and contains forged steel rods, pistons, and 4.15-inch stroke crankshaft from 440 Source. Combined with 440 Source Stealth aluminum cylinder heads, Tom's big block features just over 10.5:1 compression with a solid flat-tappet camshaft, Edelbrock Performer RPM intake, and Proform 950 cfm four-barrel carburetor. With 4.10 gears and a manually shifted 727 transmission, Tom's Coronet has run a best elapsed time of 11.70 seconds in the quarter mile. On the dyno, this potent B-Body made a best dyno pull of 400 horsepower at the rear wheels.
Tom Herrington chose Mopar Wedge power for his good-looking ’68 Coronet R/T, and then added a stroker kit and Stealth aluminum cylinder heads from 440 Source. Making 400 horsepower at the rear wheels this street driven Coronet is good for 11-second elapsed times in the quarter-mile.
2009 Dodge Challenger SRT-8
Running in our power adder class, Jaime Thompson from Jacksonville, North Carolina, is married to another of this year's competitors who also ran in the power adder class. Jaime's '09 Challenger SRT-8 is modified with Brembo brakes and Hotchkiss suspension components, and still sports the factory Tor-red paint. The 6.1 Hemi in Jaime's car is modified with forged internals, cylinder head work, a custom HHP roller camshaft, and a Kenne Bell 2.8 liter twin-screw supercharger. Exhaust is expelled through Kooks headers and a Corsa exhaust, and the factory transmission is shifted with a Hurst short-throw shifter. This Challenger is Jaime's daily driver, but she's also earned the nickname of “Bikini Model Racer” as she is a professional model and loves taking her car down the track. On our chassis dyno Jaime's car made an impressive 541 horsepower at the rear wheels, besting her husband Jason's supercharged Dakota by a single horsepower for family bragging rights.
Jaime Thompson loves the powerful look of her bright red 2008 SRT-8 Challenger, and backs up the car’s good looks with plenty of late-model Hemi power. Jaime claims that racing cars is not only a sport for boys, and proved it by making 541 rear-wheel horsepower during our competition.
1967 Plymouth Barracuda
Matt Austin hails from Mason, Michigan, and brought one of this author's favorite Mopar body styles to the showdown, a '67 Barracuda fastback. Matt has owned this car for five years, modifying the small-block engine with a 4-inch stroke Eagle crankshaft and Keith Black forged pistons for a displacement of 414-inches. The factory “J” casting cylinder heads have been ported, polished and gasket matched, and the engine utilizes a Comp Cams hydraulic flat-tappet camshaft. Topped with an M1 single-plane intake and Davinci 750 cfm carbureotr, power is transferred to the rear wheels through a factory TorqueFlite transmission, 3,000 rpm stall converter, and 4.10 geared 83⁄4 rear end. On the dyno, this potent A-Body spun the rollers in our normally aspirated class to the tune of 314 horsepower, and has run a best quarter mile time of 12.59 seconds at 107 mph.
Matt Austin loves second generation Barracuda fastbacks, and this example is nicely modified with a 414-inch small-block and ported factory cast-iron cylinder heads. As a daily driver with 314 rear-wheel horsepower, we’re sure it’s a fun ride.
2003 Dodge Ram 1500
We had a good variety of Mopars in the inaugural chassis dyno contest, including some very nice early models, late models, and Ram trucks. Dave Belcarz from Flat Rock, Michigan, brought his '03 Hemi Ram 1500 to the Mopar Nationals this year, and decided it would be fun to see how his Mopar compared to the others in our contest. Equipped with the factory 5.7 Hemi, Dave has added short tube headers, Dynomax mufflers, and a cold air intake to his Dodge. Equipped with factory 3.92 gears, Dave's truck has run a best elapsed time of 14.79 seconds in the quarter mile. On the dyno, this Ram truck made 268 rear wheel horsepower. which is pretty respectable for a stock Dodge truck.
Dave Belcarz had all kinds of Mopars in the first annual AMSOIL/Mopar Muscle Numbers Don’t Lie Dyno Showdown, including a variety of Dodge trucks. This 2003 Ram 1500 owned by Dave Belcarz made 268 horsepower at the rear wheels, which is good for high 14 second quarter mile times.
The Mopar Nationals is the biggest Mopar only event in the country, and we made it even more spectacular by holding the first annual AMSOIL/Mopar Muscle Numbers Don't Lie Dyno Shootout right in the main alley of the midway between the staging lanes and bleachers. Since this year's contest was such a big hit, we plan to expand the shootout next year to include a power adder and normally aspirated class for street cars as well as a Diesel powered class, which will be judged on peak torque. And, for those who feel they have the baddest Mopar around, how about an Open Outlaw class, which will allow any Mopar car, truck, or racecar with no rules regarding tires or power adders, even multiple power adders. So start working on your combination for next year's Mopar Nationals, and be sure to send your application in early when they come out in the magazine and on our website.
There are a lot of reasons to enter the AMSOIL/Mopar Muscle Numbers Don’t Lie Dyno Showdown, including a goodie bag, event shirt, decals, and a trophy, jacket, and prize package for the winner of each class. And if that doesn’t entice you to enter, how about five gallons of free Rockett Brand fuel and the opportunity to see your car in the pages of Mopar Muscle magazine.