How To Hop-Up Your Engine was a re-titling of Soup-Up. Numbering continued from the previous title. Like its predecessor, How to Hop-Up Your Engine was a small format, bi-monthly magazine focused on hot rodding.
It went to the large format with its last issue #20 in June, 1963. It was then re-titled as Hop-Up. Hop-Up lasted a total of 7 issues from July 1963 through to May 1965.
The first publishers were Joseph Hardie and Ray Kelly, with offices Canton, Ohio. The first editor was Fred Schnaue, but he was shortly replaced by Lee Sparacio who purchased the company in mid-1961.
Up until Hardie and Kelly exited the automotive publishing business, they managed several successful titles including Motorsport, Auto Craftsman, Custom Craft and Soup-Up.
The sale of this title to Lee Sparacio in 1961 included several titles.
