Chick Koszis' 1932 Roadster's 392 Hemi Dyno Day

When Chick Koszis designed his last '32 roadster, he said, "I've gotta have ONE blower-motored car in my life". The result was his "Bare Bones" '32 with a 6-71 blown small-block Chevy engine. This car, built at Hot Rods & Custom Stuff proved to be a reliable and roadworthy combination. Over the span of nine years, Chick racked up 62,000 miles in his hot hiboy. The opportunity arose to build another car, and the axiom, "been there, done that, got the t-shirt" played in his head. The second engine on Chick's bucket list of appropriate hot rod motors is the legendary early Chrysler hemi. "Had to have ONE of them this time." Chick sourced a bare 1957 Chrysler 392 block and commissioned old friend and drag race engine builder Ray Zeller to screw one together. The result is shown here in this video taken in the dyno control room at Vrbancic Brothers Racing in Ontario, California. Pictures of the engine on the dyno can be found at: http://www.hotrodscustomstuff.com/photos/1932-koszis-redux-roadster.html
The dyno time had several key objectives: first, start the engine for the first time and break in the camshaft; second, check for fluid and combustion leaks; third, check for undesirable noises; fourth, check vital engine operating parameters such as oil pressure, water temperature, intake vacuum, exhaust gas temperatures at each cylinder; and finally, general engine operating characteristics. Getting maximum power out of the engine was not one of the objectives.
Ray's is the voice you hear predominantly in the video. Obviously he's pleased with the results that the dyno instrumentation is showing. Engine initial start and cam break-in took place off of this video. The pulls against the dyno were made at progressively higher engine rev limits. The fifth and final run netted 520 horsepower at 6200 rpm with a torque of over 400 foot-pounds all the way from 2000 rpm all the way up to 6200, with a peak of 477 foot-pounds at 5200 rpm. This means that gobs of torque will be available at any time. Everyone is confident that this will be an awesome powerplant for a 2800 pound hot rod.
The engine is destined to go into Chick's new "Bare Bones Redux" '32 Ford roadster. This awesome hot rod is being put together at Randy Clark's Hot Rods & Custom Stuff in Escondido, California. The complete story of the build of this bitchin' roadster can be found at: http://www.hotrodscustomstuff.com/projects/1932-koszis-roadster-redux.html

Category:

Autos & Vehicles

Tags:

• hot rods & custom stuff
• hemi
• 392
• dyno
• hot rod
• Ray Zeller
• Vrbacic Brothers
• Randy Clark
• Chick Koszis