Originally Posted by
Slapmaster6000
Hey guys, I got a chance to try the new LRP SPX this past weekend. I was on a fairly big track at 60x100 with a sweep on and off. I ran the Tri Duo at 10* time with the Sphere Comp rolled at 75mm which was plenty fast. I dropped the SPX in, geared down to a 67mm r/o, timed the motor at 0* & punch mode #7 as per some prior recommendations. It sounded like it was going to blow the foam off the wheels!
But on the track, it did not impress me at all. I geared down two more teeth and it was about the same speed. I changed it over to mode #5 & #6 which seemed to take that radical active timing away from the profile. With the motor timed back up to 10*, r/o at 75mm in mode #5, it was basically the same as Comp. I totally struck out with the active timing profile. Anyone have a better recipe for 4 cell 13.5?
The guys said they sold like a million and half of these things at Birds, so someone had them figured out!
Brian
Brian, this is a fairy story, surely? BL promised no maintenance, more equality of motor, and ease of use. I was shouted down for saying it would be more expensive, harder to tune, and speed would depend on speedo software and not a tuner's ability. You living in some parallel universe the to the BL zealots?
We've found that zero timing isn't zero. There is a noticeable difference between motors out of the packet. Some people here tune with a rev counter (move the timing up until you get the same rpm from each motor) some by ear.
Go back to your set-up and increase the motor timing by 0.5mm (circumferential distance) at a time and see what happens. My motor runs best with 2.5mm of timing on the motor, and about 25 deg from the speedo (LRP setting No 7). It doesn't run as well with 30 deg from the speedo, and zero on the motor.
HTH
