Haven't done anything yet as I'm in the market for a spare motor to build.Rookie said:or would do in addition to the pistons that would net appreciable results without putting the reliablity of the engine in too much jeapordy.
g-mang-man said:My main focus is to get 10 more HP without sacrificing any reliability. I feel this is viable using a Thorsten airbox, Mori stage 1 CAMS and full exhuast, the JE pistons, 02 heads and throttle bodies.
SP1 harness will work and although it is not an absolute requirement it's a good idea to get an 02 (or later) ECU as well.lymo said:g-man
I currently have a project of doing a valve job with new valves in my SP1. It is a high milage engine, and after the last Dyno -run, it is suspected that the valves are not sealing efficently in higher revs any more.
Additionally I intend to replace the pistons and shells. The Mori Stg 1 also sounds as a good solution.
But you put me into an idea of starting out with some fresh SP2 heads, and trottlebodies.
Question: Will the SP1 wire harness and my USB Power commander III handle the new trottlebody?
Are you saying you are selling the cylinder set with pistons ?speedkills said:see link on page 1, reply #7.
I think the bottom line here is that JE pistons aren't ultimately reliable with respect to their dimensions. Does CP Pistons, in Irvine, CA, make pistons for the RC51? They make the best pistons on Earth and charge for that but they WORK!speedkills said:Be careful, early JE pistons had a problem with rocking because they were too small.