OVERVIEW
How To Hop-Up Your Engine was a re-titling of Soup-Up. Numbering continued from the previous title.

Publishers were Joseph Hardie and Ray Kelly of Harle Publications in Canton, Ohio. Hardie and Kelly also published Speed Mechanics and Custom Craft.

The first editor was Fred Schnaue, but he was shortly replaced by Lee Sparacio who stayed as editor through the end. Mr. Sparacio edited several automotive books in the 1960s.

Like its predecessor, How to Hop-Up Your Engine was a small format, bi-monthly magazine. It went to the large format with issue #20 in June, 1963. After the June, 1963 issue, it was re-titled as Hop-Up.

The table of contents can be seen by clicking on the  icon.

PUBLICATION DATA:
How to Hop-Up Your Engine had three years of publisher-provided print volume data (1961 through 1963). In those three years, it was at the bottom of the list of all automotive titles with net paid circulation details. Only 6,000 to 9,000 magazines were printed and distributed monthly.

CONTENT COMPLETENESS
A total of 17 issues was printed from August, 1960 through June, 1963. All cover images are complete.

Aug 1960
Aug 1960 #4
Nov 1960
Nov 1960 #5
Jan 1961
Jan 1961 #6
May 1961
May 1961 #7
Jul 1961
Jul 1961 #8
Sep 1961
Sep 1961 #9
Nov 1961
Nov 1961 #10
Jan 1962
Jan 1962 #11
Mar 1962
Mar 1962 #12
May 1962
May 1962 #13
Jul 1962
Jul 1962 #14
Sep 1962
Sep 1962 #15
Nov 1962
Nov 1962 #16
Jan 1963
Jan 1963 #17
Mar 1963
Mar 1963 #18
May 1963
May 1963 #19
Last small format
June 1963
June 1963 #20
Last issue