Championship Engine Builder Trusts Only AMSOIL https://hrsynthetics.ca More than 1,080 miles covering six states separate Jesse Prather Motorsports, in Topeka, Kan., from Virginia International Raceway. And yet Jesse Prather’s influence at the track in October for the Sports Car Club of America’s (SCCA) annual “Runoffs” was unmistakable as an estimated 20 cars had one of his motors under its hood. In 2017, that number was 32. And two of those cars won national championships that year. Top driver becomes top engine builder That’s all to say that Jesse Prather is a big name in SCCA road-racing circles, particularly for competitors at the Runoffs, the SCCA’s biggest event. Many of them source their engines from Prather’s shop, where he puts his wealth of racing experience to work. Although Prather has raced himself, winning three SCCA national championships, and has built race cars, today he mostly builds high-performance engines. He’s developed a niche building Mazd...