Cool your exhaust temperature with the Wide Band O2 upgrade for 2007/08 HD
Looking for high performance engine specifications for your Harley-Davidson motorcycle? Need to know what high performance equipment provides the best performance at the lowest costs for your H-D. Here you can look at performance modifications with the dyno runs of many different engine combinations, so you can pick your own equipment, horsepower rating and dollars to spend. An incremental approach to engine development has provided some good results on many engines. Find out what combination of carburetor, camshaft, exhaust systems, ignition systems, head work, pistons and the other high performance components work well. There are tests of some equipment that did not work well. Know what works and what does not. Compare the results of your current bike to those seen here. Are you getting the performance you paid for?
If you want to build your own Stage 1 engine, here are the parts used to create a 64 HP engine.
If you want to build your own Stage 2 engine, here are the parts used to create a 74 HP engine.
If you want to build your own Stage 3 engine, here are the part used to create an 82 HP engine that can be assembled over a weekend.
Modification, Installation, Maintenance and Tuning Index will help you find most of the information you want on one page.
