Hammerhead Hemi peaks 928hp: 427ci SB Ford

Hammerhead Hemi peaks 928hp: 427ci SB Ford

By Freddie Heaney: The sound of the dyno approaching 8,000rpm was almost ear splitting. It was the first Friday of June and sitting in an open wooden-framed space at Charlie Pepper’s engine shop in Auburn, near Atlanta, Greg Brown’s innovative Hemi heads on a Man O’ War 427ci small-block Ford peaked at 928hp at 7,700rpm and generated a maximum torque figure of 674.0lb ft at 6,000rpm. Watch the video. When first tested in mild street form with around 9.5:1 compression ratio the combination yielded 602hp. Quite the accomplishment for unique and previously untested cylinder head designs. But it was not the main event nor might this be. Now, around six months later and using ported heads and intake manifold, higher compression ratio and bigger carburetor, but still employing the same stock-size valves (2.200-inch intake and 1.650-inch exhaust) the engine began the afternoon tests by generating peak power figures in the 850hp range. But with incremental timing and carburetion adjustments it eventually made its way up to a mighty 928 horsepower. Inevitable, I asked? “No, not at all, replied Brown. “Though we increased the flow in the ports from 382cfm / 260cfm to 435cfm / 290 (inlet and exhaust respectively), I would have been happy with peak horsepower numbers of around 850. Remember, ninety percent of all high performance wedge-style cylinder heads rarely exceed 800hp.” Of even greater significance, perhaps the 1250cfm Dominator-style carburetor had proved to be too small during the tests and will be replaced by another that’s capable of generating air flow of around 1450cfm. Was the 1250 carb an ill-advised choice perhaps? “No,” said Brown, “this...
Warning from Fang: More power from nozzle change

Warning from Fang: More power from nozzle change

More venom from Fang II – largest flowing 1/16th nitrous nozzle at 90-degrees yet • Largest nitrous orifice in production – increases flow rate • Individual channels for all passages – seal cannot rupture or leak • Direct replacement for any fogger system – uses same N2O and fuel inlets • Stainless steel construction – 1/16th pipe with 90-degrees N2O discharge   Huntington Beach, California: Nitrous Supply has introduced significant improvements to the design of their new Fang II nozzle. Fuel is discharged via the two fang-like orifices beneath the larger nitrous opening, creating better fuel atomization across the entire plume. Mike Thermos, the nitrous specialist of almost forty years says, “If there is another 90-degree nozzle that flows more than this, I’m unaware of it.” As a result it is free of restrictions; it eliminates back pressure in the system. A jet of any given orifice will now flow consistent to that orifice. The Fang II nozzle is expected to be priced similar to the Fogger.   Source: Nitrous Supply Huntington Beach, CA 714-373-1986...
How to adjust a carburetor choke

How to adjust a carburetor choke

New Jersey native Ray Bohacz is a respected engine builder. Though he relished the challenge of preparing race-winning engines, his earliest memories were linked to farming and its many aspects—particularly its mechanics. Recently he has combined these interests by demonstrating the value of short, technical trouble-solving videos. No doubt most of us have encountered problems with carburetor chokes, so watch for Ray’s good...
Joe Hornick and his unusual service:

Joe Hornick and his unusual service:

America’s first help line for race engine builders. By Victor Moore: “He’s been an absolute master at soaking up knowledge, which has been a great help to us. He applies it intelligently and explains it in simple terms,” says John Force’s Funny Car crew chief Jimmy Prock. In our racing world, from Sportsman level to F1, it is those with acutely sharp brain power that gain the decisive edge. Though not always recognized by the public at large, top teams know them, know their capacities and know they are indispensible. Joe Hornick is one such and like a rare trumpeter swan, when he’s in full flight his capabilities are something to see. “As an engineer, he is the best I’ve known,” says race engine builder Jack Cornett. “I first met him in 2011 and hired him initially as a consultant to unravel mysteries within our valve train assemblies. It didn’t take him long.”     Hornick, who grew up in Madison, Minnesota gained an aptitude for the skills required to develop advanced racing engines. His technique was mostly conventional: endless research and careful analyses. More unconventional, however, has been his embrace of all types of internal combustion engine development from nitro methane to alcohol, gasoline, to diesel, from drag racing to oval track—both asphalt and dirt, he even advises on and develops engine systems for marathon boat racing. He learns from them all. Says Richie Gilmore of ECR’s engine shop (Richard Childress Racing) in North Carolina: “It’s the extensiveness of his experience with racing engines that sets him apart. There are very few individuals like him. When NASCAR adopted...
New dates: ididit’s car show & open house

New dates: ididit’s car show & open house

The ididit Car Show & Open House, set at the company’s facility in the Michigan Great Lakes Region, is changing dates seeking better weather. Michigan weather isn’t always as consistent as the quality of vehicles on display, according to the company. Originally slated for the first week in October, ididit’s Car Show & Open House has weathered snow, rain and cold temperatures in recent years. In order to dodge the weather, the company decided to move this year’s car show to Sep. 16. Says ididit’s Megan Lunsford: “The date for the 2017 car show may have changed, but we will continue to showcase the best custom cars from the region, as well as provide our neighbors a chance to tour our manufacturing facility and win great prizes. We are proud to be an integral part of the Tecumseh community and our annual car show and open house is a way for us to show our gratitude to the place we call home.” Admission to ididit’s 2017 Car Show & Open House is free to all and will feature the car show, vendor exhibits, and giveaways. Registration (click here) for the 2017 ididit Car Show & Open House opens in...
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