Bonneville America Forums Forums Technical Forums Performance Mods Zmilins build *finally started*

I had my local dealer install the TPUSA cams and ignitor on my 2007 BA last spring. I went from 50 HP with pipes and airbox mods to 60 HP with the cam and igniter installed.

The dyno graph looks basically the same up until about 5,000 - 5,500 rpm, where the stock cam flatten out and the TPUSA cam keeps going all the way to 60 HP. The higher rev limit is important since you are only making the extra power above 5,000 rpm, so the more room you have on the tach to enjoy those extra hosrese is important. Definitely a big improvement over stock.

A couple months later, my ignitor started crapping out and I replace it with a Pro-comm on map 6. So far it still feels pretty strong, but perhaps the re-programed ignitor was slightly better. To bad they use reprogrammed stock units which are affected by engine heat on our machines.