Popular Hot Rodding Magazine (PHR) officially kicks off the 2013 AMSOIL Engine Masters Challenge competition at the dyno facilities of University of Northwestern Ohio (UNOH). With multiple dyno cells available, the PHR staff, as well as engine builder participants wait anxiously for their turn on the dyno. Although three teams dropped out of this morning’s dyno challenge including Atlantic Engines, JM Performance Auto Repair and Wise Performance Engineering, we still have another three teams up to bat. Make sure to stay tuned, we’ll be competing each morning throughout the week, beginning at 9am Eastern Standard Time. Over the course of the next five days, we’ll be providing each team’s final dyno numbers and points as each day progresses as well as a daily recap at the end of each day.
A combined effort of 40 teams will be competing with six teams taking the dyno cells on Monday. Then, eight teams on Tuesday. By Wednesday we’ll be shuffling through ten per day. At the end of the week, Friday, we will crown the winning team as, “Engine Master!”
The 2013 AMSOIL Engine Masters Challenge is presented by UNOH, COMP Cams, Flowmaster, Aeromotive, VP Racing Fuels, DTS by SuperFlow, ARP Fasteners, SAM, Rottler and CID.
Be sure to check out the following pages for all of our coverage.
Qualifying eliminations in the 2013 AMSOIL Engine Master’s Challenge was kicked off with a Pontiac engine fielded by Throttle Performance. Although this team is new to the event, they were clearly experts in the engine building field. Among the crew was veteran Challenge tuner Scot Clark, while noted author David Vizard was included as a special guest and advisor. The 428 cubic inch fuel injected Poncho proved extremely strong, posting peak numbers of 738 horsepower and 653 lb-ft of torque. The crew worked expertly in the test cell, with tuning accomplished via a computer link in the control room. We were impressed to see substantial power gains with every tuning move. Throttle performance opened the competition with a very strong score of 2742.2 points.
Henderson Power Sports
Chris Henderson and the Henderson Power Sports team have competed in previous events, and were well prepared with a 407 cubic inch small block Chevy. The engine sounded crisp on fire-up, but seemed to develop valvetrain instability at the 7000 rpm redlines of eliminations. Nonetheless, the Chevy twisted the dyno with some impressive power numbers, edging up to 698 peak horsepower and 611 lb-ft of torque. The overall score was somewhat clipped by the valve float up top, but the final tally was still impressive at 2679.8 points.
Chuck Keech came to the show with a 402 cubic inch Gen III Chrysler Hemi. The modern engine featured a carbureted induction and a tall single plane intake manifold. The effort was compromised by a severe valvetrain stability issue at over 6500 rpm, making the engine labor to meet the required 7000 rpm. Despite the problem at the top of the rev range, the Hemi delivered very strong output, with as much as 677 peak horsepower and 602 lb-ft of torque. Chuck was disappointed that the high rpm woes curbed the score, leaving qualifying at 2609.5 points. Still, the Hemi’s power potential was nicely displayed.
Dr. J's Performance/Airwolf Cylinder Heads
Bryce Mulvey of Dr-J’s Performance brought a 23-degree Chevrolet equipped with their own AirWolf cylinder heads. With the exception of custom CP pistons, their competition engine was re-assembled with off the shelf parts, including Dr-J’s standard 220cc CNC cylinder heads. The 436-cube small block showed very good peak output, recording 711 horsepower and 629 lb-ft of torque. The engine pulled effortlessly to beyond 7000 rpm, however a dip in the torque curve at the very bottom of the rpm range put a crimp on the score. The team completed qualifying eliminations with 2604 posted to the board.