Originally Posted by pink_sleeve

I tried a Viper 540 6.5 geared 17/93 on an outdoor track that is about 115x65. The motor was brand new never even saw a practice lap. I was on a tq run and at about 4 min 15 seconds that motor melted down. It was around 200 when I temped it. My friend was also running a 540 7.5 in his coming off around 200 every run so why does the lrp keep in truckin but the viper puked on its 1st pack? This has made me scared to try another 540. The motor ran awesome for the 4 minutes it did run. It had more grunt and top end then the sc4x 5.5 I was running previous. I would like to give the 540 another chance but I do not want to smoke another motor. I already have a NEW Tekin 540 6.5

Originally Posted by Mac The Knife

Different turning radius between the front and rear.

Originally Posted by GuiltyByAssoc

Cool, so its normal then?

thanx Mac!

Originally Posted by murky123

you do have to hit the throttle

I run 15 minutes max with the 3800 4-pole 5600mah 50c 2s ip stickpack

Originally Posted by 1fastslash

OR the easy and best way to run it is with traxxas pinion gears theyre 4x4 slash gears are 3mm 32 pitch

Originally Posted by Cameron Kellogg

17/93 is pretty tall for a 540 motor. I do have the fan mod done so that helps with temps but I normally run around 14/93. -5 on the motor and no timing in the speed control.

One thing I heard using the Tekin RSpro is that if you are in sensor mode and have it at zero the speed control still has 15 deg of timing added. Something about the speed control using the sensor can see the rotor coming. You have to be in blinky mode or duel mode for zero timing. I notice my motor ran hotter in sensor mode. Not sure if other brands have this problem too.

Originally Posted by lodhammerdin

Hey man, I run lrp 550's in my truck and they come off at 210-220 consistantly. I talked to maifield who showed up at comp hobbies friday night and he said thats normall for our motors. Lrp's run a little hotter than the rest and he said its no problem, its just in there design.

Originally Posted by pink_sleeve

I guess AE team guys use torque rotors and don't mention it on their setup sheets.

Originally Posted by Rick Hohwart

When using 540 motors, I recommend using the motor manufacturer's largest rotor option. For LRP 540 motors, this is the 13mm option.

Originally Posted by 1Fastpede

I assumed this when i saw this post from Rick@AE

Originally Posted by pink_sleeve

Maybe i should get a 14mm rotor for my Tekin 6.5 then or would the 13mm be enough?

Originally Posted by ITS ME DAVID

When are those viper 4 pole esc combos that are under $200 coming out.

Originally Posted by murky123

I dont know how but I have seen 2 brand new LRP's X12L 5.5 turns motors go dead in this truck.
both times the truck was in top shape and driven by one of holland's top drivers.

based on good experiances with the speed passion silver arrows V1.0 I just orderd the silver arrow v2.0 5.5 turns and Im returning my brand new X12L 5.5

bad luck or bad karma or bad batch I dont know, but as you might guess, I have little faith in the X12L 5.5

but happy for you guys its running ok

Originally Posted by SaladFork

Middle of November.

They will be on display at iHobby in Chicago next month.

Originally Posted by ITS ME DAVID

Are they available both sensored and non sensored in a combo?