Originally Posted by occ
Go to any major race & watch the top engine tuners. Notice they never use a temp gun? I have never seem Mario Rossi, Andrea Rossi or Rody Roem use them.
this folks never have to pay for an engine my friend... they can run it till it blows and call it testing for metal fatigue. this does not apply to me. I pay full price for my RB's (Rody's) and JP's. I run my JP FX21 RO3 at 220-240f for 5min quals and no more than 220 for a 15-20 min main with plenty of power. if you have to run 300f just to get the power you need? well maybe. just maybe you have a wrong kind of engine. you are just too fast for that engine...
btw : this guys do not use off the shelves engines like you and me.