Say it however you want, it all boils down to the same thing: Anyone can claim big power numbers (and many do), but when you strap the car to the rollers and run it to the redline, the printout at the end gives it to you in black and white. The chassis dyno is the great equalizer.
This past summer at the Carlisle All-Chrysler Nationals, Mopar Muscle magazine brought in Dynotechs portable chassis dyno and invited all comers to tie down to the big red rollers and see what their cars were putting out. In between the Pennsylvania rain showers that played with us the entire weekend, many enthusiasts took us up on our offer. Some were amazing, some were asthmatic, but they all had one thing in common: They stepped up.
From front-wheel drive cars putting out over 50 horses per cylinder at the tires (yowza!) to several guys running their numbers-matching Hemis, the dyno got a little taste of everything over the weekend.
Naturally, the dyno leveled the playing field. Some guys guessed the number before letting er rip, while others guessed high and were a little dismayed by the numbers their cars were really putting out. In their defense, high temperatures and lots of humidity arent exactly conducive to high horsepower numbers. Neither are air filters with 20,000 miles of dirt in them, as Doug Miller found out in our favorite 64 wagon.
As always, there was a ton of great stuff to be seen at Carlisle, but for our money, Dynotechs chassis dyno had to be one of the highlights, mainly because we saw a lot of people eager to wring their engines out and see what theyd do. Many were happy to finally know what their engines made and are content with the knowledge, while others are already looking towards modifications for next year. Well be there ready to see what they make. Will you?
Car: 1968 Plymouth Barracuda
Owner: Joseph OCone
What it did: 309hp@6000 rpm, 334 lb/ft@4000 rpm
How he did it: 368-inch small-block with a .507-inch lift cam, slightly ported J heads, Six Pack intake and carbs, and MSD 6AL ignition, 2-inch tti exhaust.
Future modifications: Lots.
Car: 1969 GTX
Owner: Edwin Thompson
What it did: 375hp@5750 rpm, 517 lb/ft@3500 rpm
How he did it: Its got a Hemi. Other than that, he aint sayin.
Car: 1964 Plymouth Hemi-powered Station Wagon
Owner: Doug Miller
What it did: 333hp@5500 rpm, 384 lb/ft@3500 rpm
How he did it: With an air filter so plugged it stalled the engine on the way back to Canada!
Car: 1965 Belvedere
Owner: Donald Gallimore
What it did: 349hp@5,000 rpm, 431 lb/ft@3250 rpm
How he did it: 446-inch big-block filled with 9.5:1 pistons, MP .484 lift/284-degree hydraulic cam, pocket ported heads, electronic ignition, 17/8 Dougs Headers and 3-inch tti exhaust.
Plans for next year: Open headers and a 2x4 Cross Ram. We cant wait!
Car: 1967 Hemi GTX
Owner: Andre Soubliere
What it did: 335hp@5750 rpm, 364 lb/f @4000 rpm
How he did it: MacCallum-built 484 cid Hemi, stock 2x4 induction, electronic ignition.
Whats really cool about it: Its an original low-mileage, numbers-matching Hemi car.
Cool Quote: I wish I had headers on it. Not all the time, but sometimes. Like on the dyno, or at the Woodward Avenue Dream Cruise in Detroit. That would be fun!
What else: Andre proved that Hemi cars dont melt in the rain.
Car: 1970 Hemi Challenger R/T SE
Owner: Joe Medwick
What it did: 416hp, no other info available
How he did it: 478-inch Ray Barton-built Hemi featuring Comp Cams .540/.550-inch lift cam in the 240-degree range cam, 69 Super Stock intake manifold with matched 1-inch spacers under the carbs, Chrysler electronic ignition, Hooker headers with 2½-inch crossover and Borla XR1 mufflers.
Joe simply said: Bad weather. The numbers were down. 448hp last year.
What else: Joes the original owner.
Car: 1970 Cuda
Owner: Brian Mastrangelo
What it did: 319hp, 339 lb/ft (no rpm given)
How he did it: 393-inch big block, 10.25:1 pistons, Comp Cams #2825-GVL cam, pocket ported heads, Crane HI-FX rev-limiter ignition box, Six Pack intake
Car: 1972 Road Runner
Owner: George Cobb
What it did: 435hp@5,500 rpm, 476 lb/ft@3500 rpm
How he did it: Big-block 440, stock 452 heads, a big Isky cam (.547 lift, 257-degree duration), a BDS 6:71 blower with twin 4 bbl, MSD ignition and a full 3-inch tti exhaust.
What else: Georges Bird was the biggest dog in the pound!
Car: 1973 340 Challenger Rallye
Owner: Kasimere McManus
What it did: 294hp@6250 rpm, 322 lb/ft@3250 rpm
How he did it: 340 +.030 engine filled with 11.0:1 pistons, Ultradine mechanical .582-lift/282-degree cam, mildly ported heads, 850 cfm Holley carb on a Victor 340 single-plane intake, MSD ignition and 2-inch Dynomax exhaust. What else: Kas only had 50 miles on the motor, so he figured strapping it to the dyno would be a good way to break it in!
Car: 1986 Plymouth Horizon
Owner: Michael Marra
What it did: 226hp@5500 rpm, 346 lb/ft@3250 rpm
How he did it: Forward Motion cam, home ported and polished head with +1mm oversize valves, brother-modified intake manifold, 52mm throttle body Super 70 turbo, and brother-bent custom header.
What he plans for next year: a bigger intercooler and a cam change. What else: You owe your brother big for the header and intake job! Those are stout numbers with that four-holer.
Car: 1989 Dodge Daytona Shelby
Owner: Butch Nordstrom
What it did: 214hp@4500 rpm, 274 lb/ft@3250 rpm
How he did it: Stock 89 2.2 roller cam, ported head, ported 2.5L intake, 2-inch exhaust, stock ignition, and 17 pounds of boost from the turbo.
Our comments: Look at the numbers: over 200 ponies at the tires with only 4 cylinders, through a trans axle that just screams parasitic loss. Butch will be back next year with More fuel and more boost.
Car: 1991 Shelby Daytona
Owner: Mike Lupis
What it did: 305hp, 371 lb/ft (no rpm given)
How he did it: .030-over Wiseco 8.25:1 pistons, Super 60 injectors, race head, Comp cam, 3-inch exhaust, T-4 Turbonetics turbo running 25 pounds of boost, and a host of junkyard parts.
Next Year: MSD Stage 2 ignition
What else: 305hp, 4 cylinders. V8s werent making that!
Car: 1997 Dodge Avenger
Owner: Nick Solovey
What it did: 141hp@5500 rpm, 145 lb/ft@4500 rpm
How he did it: Its stock, except for an Ice Man intake system.
Truck: 1979 D-100 Adventurer
Owner: Tom Ressler
What it did: 272hp@5750 rpm, 291 lb/ft@4250 rpm
How he did it: 360 small block filled with Keith Black pistons, an Ultradyne cam, MP solid lifters, Comp Cams roller rockers, pocket ported J heads, a Six Pack intake, headers, and 2-inch Flowmasters.
Truck: 1999 Dakota R/T
Owner: Anthony Tomae, Jr.
What it did: 205hp@4250 rpm, 277 lb/ft@3500 rpm
How he did it: Went to the dealership and bought it. Its stone stock for now, but future plans call for headers, ported heads, 1.7 roller rockers and an ATI ProCharger. Anthony gets bonus points for baselining his new truck so he can quantify any future enhancements.
Truck: 2000 Dakota
Owner: Matt Barret
What it did: 208hp@4750 rpm, 280 lb/ft@3250 rpm
How he did it: 4.7L OHC V8, K&N air filter, Flow Master 3-inch converter-back exhaust, Mobil1 synthetic lubricants.