Easy to install kits are available for snowmobiles, ATV's, dirt bikes, motorcycles and automobiles. Mr. Dean held over 120 world motorcycle drag racing records and several Bonneville records. He knew that he needed a different fuel curve for the launch area, middle of the track and the end of the track. He also had to deal with different altitudes, temperatures, and air densities. Modern motorcycle engines come from the factory jetted on the lean side, leaving little room for error.
Motorcyclists often discard their standard air filter and install a high flow air filter.
This will upset the air to fuel ratio making the engine run even leaner and hotter. Custom exhaust systems are usually lower restriction which also causes the engine to run leaner and hotter. The combination of the high flow air filter and the low restriction exhaust system substantially alters fuel flow requirements, leaning the engine and raising the operating temperature. The additional heat that is generated can have a detrimental effect on engine longevity as well as delivering poor performance. Gear selection may become more difficult due to increase in oil operating temperature.