John is not from an automotive engineering background, but a clubman racer looking for more power. His V8, the H1V8 3-litre is a 32 valve unit weighing less than most 4 cylinder engines. He began by looking at watercooled motorcycle engines and settled on the Suzuki Haybusa from which it is derived by mating two of these 4-cylinder units into a V8, casting the block and heads in alloy. These are not the usual 90 degree V8s but 75 degrees to make them compact enough to fit in the same space as a 4-cylinder engine. The target market is for track cars and other lightweight race vehicles which are limited for size and weight reasons.