Screw-Blown 521 cid Hemi Engine

After getting blown backwards off the starting line from Jim Kilpatrick's alcohol-fueled, screw-blown, 521 cubic inch Hemi engine at the 2022 Builder's Brawl, we stopped by the Kilpatrick Racing Engines / Bad Judgement Racing pit the next morning to get the full details of this engine build. It's our Engine of the Week brought to you by ‪@penngrade1motoroil830‬, ‪@elringdasoriginal‬, NPW Companies, and Engine & Performance Warehouse, Inc.
#engines #horsepower #performance #dragracing #hemi #hemipower #blower #enginebuild #engineoftheweek #enginebuildermag
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[@yosmith1]

Fascinating interview ....what a beast!

[@EngineBuilder]

Right?! Jim gave some great insight on this build.

[@sheldonpillay7767]

brilliant interview

[@stuartlang9968]

Very smart man with a badass racecar

[@mikebianco7854]

Awesome video that’s what I’m saying screw hemi power best 👍🏽

[@todaywithjohnny7890]

I love how he says it lays over at 8500 when the hemi in our Chevelle goes to almost 11 grand under full load, and it only runs a 6-71 roots blower

[@timbulthouse7961]

Look at it again. Hr said the roots laid over at 8500. Then he said they shift this set up at 10,000. Rpm.

[@badass6.0powerstroke10]

With all the Screw Blowers out there, i wonder why people would even think about using a Roots Blower, i know certain classes the rules allow for the use of either Blower to be used, where the Roots Combo usually gets a weight break over the Screw Blowers, due to the Screw being "Better" ? There definitely more efficient, that's why I'm always wondering Why would someone choose a Roots over a Screw ? To me better efficiency equals Lower Inlet Temperature Charge, Less Power needed to turn, and More Power ! To me a Screw beats Roots Everytime.

[@nickm6494]

Excellence video!!!

[@EngineBuilder]

Thanks!