p2k2pro....from tower
#1
Tech Fanatic
Thread Starter
p2k2pro....from tower
a mate of mine got a trinity p2k2pro from tower...........and it says it has 30,600 rpm
and my mates has 17,982rpm
and tower says it has 67.7 efficiency and my mates has 56.6 efficiency
and tower says it has 127 power.....my mates has 60
and tower says it has 172 and my mates has 101
wtf is goin on........any1 know why its so crap
link http://www2.towerhobbies.com/cgi-bin...&I=LXAVJ2&P=ML
thanks in advance
and my mates has 17,982rpm
and tower says it has 67.7 efficiency and my mates has 56.6 efficiency
and tower says it has 127 power.....my mates has 60
and tower says it has 172 and my mates has 101
wtf is goin on........any1 know why its so crap
link http://www2.towerhobbies.com/cgi-bin...&I=LXAVJ2&P=ML
thanks in advance
#2
Super Moderator
iTrader: (2)
Sounds like one of them was tested on the Robitronics dyno(the one with higher numbers), & the other was likely tested on Fantom's dyno. Trinity made the switch a couple of years ago(though there could still be some of the older motors out there, especially from places like Tower) to the Fantom dyno, & they just test a slightly different way(including the default voltage they test at, the Fantom I think does it at 6 volts, while the Robi's default voltage setting is 7.5, & more volts=more motor power, rpm, etc.). Makes it pretty hard to directly compare, but from my experience, both sound like they're ok, & both should run similarly well, so don't sweat it....
#4
Tech Apprentice
In defense of Tower Hobbies they state that those numbers are optimal figures. Numbers will vary between batches. We all know that every production motor isn't the same as the others.
#5
Tower just sells them. Unless its their brand, than its up to Trinity. And, like some other posts mention, it could be tested a different way; like a different dyno.
#6
Super Moderator
iTrader: (2)
Yes, believe me, I have no doubt that the numbers Tower is quoting is from when Trinity used the Robitronics dyno(I know because I have the Robi dyno myself), & Tower just never bothered to change the numbers in their listing of that motor to reflect Trinity's change.
#7
Tech Fanatic
Thread Starter
tower may have said that they will be lower......but they cant be as low as my mate had
#8
Originally posted by pink pac man
tower may have said that they will be lower......but they cant be as low as my mate had
tower may have said that they will be lower......but they cant be as low as my mate had