Originally Posted by
mangoman
Granpa nah was definitely cranking the motor. It was a few years back though and your comment about it being legal upto 2011 kind of astounds me (relative to our racing rules).
The guy when he told me about it said that some dude from another country just goes and does it to his motor and he was pretty much told everyone was doing it.
Ive never done it or seen it it donw but ive had a number of of locals who say they reckon they could crank a motor in a minor way so that its hard to spot where the windings should be tight at the comm. But even a small amount of movement would be an advantage.
As for magnet zapping. I know the difference because he had a PROPER dyno. So he had torque curves and rpms for my silver cans.
I used to hate hassling him to do them for me, because he didnt like taking the stuff to the track (i assume otherwise everyone starts walking up to you and asking you to zap and dyno their motors). But i mainly did it for 540 touring car which i was terrible at because i cant drive smooth through a corner, which also means the brushless in a mini was also a massive help for my performance.
I spoke to one of the other locals who had a dyno and used to use it for his black cans in mini. He told me a secret where he was convinced you could get more speed from zapping a motor in a particular way. He had a dyno as well and i have no reason to believe he was lieing.
I guess we're not going to agree on much of anything, but that personal shot that I was "cranking" motors was irritating to say the least. Why would anyone who is knowledgeable on 540J motors use a technique so limited. As Doc once told me, that is so old school.
I should be clear when I refer to rules, to specify Tamiya TCS Rules for the USA. Till the 2011 Rules, there was nothing about "cranking" being illegal. I read the rules and even now they haven't addressed magnet zappers either. Yes, you're right, it's a little unbelievable. Peer pressure kept "cranking" from becoming a wide spread practice.
I will apologize to you tho, cause I thought you were a clueless idiot when I read your post on Zappers. Now that you've cleared up the fact that you use a PROPER dyno, I'll revise my opinion slightly. Just out of curiosity, how did you guys get around the problem of not being able to use the slug?
Incidentally, I own and use a PROPER dyno frequently. Don't dyno every motor I do cause the lower rpm tuneups are pretty consistant so use a motor tester to make sure we meet the rpm limits. I know that the power and torque #s will be okay if the rpms are right.
Why don't we just agree to disagree and leave it there. That Granpa nah stuff is really uncalled for.