How is this low cost? 20 Chinese arms conditioned = $240 and 4 PS tagged arms = $100.
I can't imagine anyone needing more than 4. Initial cost for Chinese arm is less, recurring cost for true cost of ownership is less!
Again, no one is answering how many to get one competitive.
Chris
Again ..... we must be incredibly lucky in Jacksonville when it comes to building fast Hawk 6 motors because I don't think it's ever taken buying more than one pre-conditioned replacement arm for me to have a motor capable of winning the A Main. (It's a shame I'm not a better driver because the equipment is pretty good.)
It certainly doesn't take 20 armatures to get one that's fast. It should only take one pre-conditioned armature if the original, stock armature is too rough to reach its potential. Presuming that the setup has been properly prepped. Nothing trick, just prepped.
I believe that Doc's example is what he's accumulated over the past three years. I'd wager that he has a number of H6's that many racers would consider competitive.
I don't take the copious notes that Doc and other top racers use, but I'd wager that I haven't built more than seven or eight Hawk 6 motors that I've raced every week for the past three years. That's keeping two LMP's and one Group F ready to race at a high level. And they've all been raced in the A Main and competed for a podium finish.
Simple recipe
Stock Hawk 6 Motor = $17.00
Aftermarket Brushes (Gold Dust or Super Big Foot II's) = $3.50
Replacement Springs (Koford 313, Koford 609 or Champion Lights) = $2.00 to $2.50
Total = $23.00
Some guys choose to change the can bushing. If so, add $1. I haven't seen much, if any, difference.
Even if you add the cost of one pre-conditioned replacement armature at $12, you're only at $35. Again, my two LMP cars are certainly competitive and have typically stayed fast for many, many months ---- and that's racing them every Wednesday night.
In fact, Out of the seven or eight motors --- again, over 3+ years --- the fastest one was absolutely stock.