35 replies to this topic

[Prof. Fate]

Hi

It probably doesn't matter to most racers, but the guys who like motors, the technology and tinkering, love the Hawk and Hawk6 . I have been having a lot of fun even though there is no real race class for them. Closest is an "open 32" class they run locally, any production stamped chassis, no motor limits. The car currently holding the outright lap record, the heat and race records was one I built with a Hawk for the track owner. He only ran it ONCE and now only lends it to second rank drivers.

But the mini-motors are just fun to play with, especially in a 1/32 size craft.

Fate

[flem1959]

Are there plans to submit these motors and setups to USRA or ISRA?

[gotboostedvr6]

I'm not sure why raceways would run the hawk 7 when the hawk 6 exists.

[Guy Spaulding]

I'm not sure why raceways would run the hawk 7 when the hawk 6 exists.

Each motor has it's place.

The hawk 7 is a virtually tamper-proof sealed motor - great for less experienced slot racers in classes where motor modifications are not desired nor required.

The hawk 6 is fully rebuildable and is best suited for experienced motor builders.

[Gator Bob]

When you use the term "cut brushes" is that pre-radius or something else?

[Guy Spaulding]

When you use the term "cut brushes" is that pre-radius or something else?

"Cut brushes" generally refers to reducing the contact patch on the commutator.

Some feel the brush wraps around the comm too much, so they narrow the brush vertically. Narrowing on the leading edge invokes retarded timing. Narrowing on the trailing edge invokes advanced timing.

Some will cut the brush on top, bottom or cut a slot across the middle. This reduces friction and some other claimed attributes.

[DOCinCanton]

The motor brushed in our 16D's (Big Foots, Gold Dust, etc.) are 0.125" wide. "Cut brushes" is trimming down the 0.125" width to something smaller. Mike Swiss has cut brushes for the Hawk 6 as far down as 0.070" to 0.075". This has nothing to do with pre-radiusing the brushes. disclaimer: the preceeding is true only if I understand this thread correctly; use at your own risk.

[DOCinCanton]

How about a follow-up:

I bought two Hawk 6s to test them for a 3 hour enduro. I ran both motors about 15 minutes each at a local slot car track. I then sent the arms to Pro-Slot for re-balancing and comm true. Rebuilt the motors with Gold Dust brushes and trimmed them down to about 90 thou wide. Brandon and myself led 2 hours and 40 minutes of this race then broke a guide flag; we finished third. We took the lead during the second heat and stayed ahead for all that time. The race was fairly close with us pulling out about 45 lap lead which is about 3 minutes on this track. The Hawk 6 ran very strong most of the race, but had slowed aliittle during the last 1/2 hour, but we still had the 45 lap lead at that time. I was very impressed with this motor. The car handled great with it, and we out performed everybody with this motor. Most others chose the Hawk 7. Our Hawk 6 was clearly faster.

[Gator Bob]

Doc, your car WAS FAST after we lead the first 15 minute heat our team looked to be destined for second place. When you started having guide flag problems we had a shot back at the lead. With me driving the last three minute heats we were able to hold on to second as Bill's DaHouse car and team were just 7 laps behind with 45 minutes to go. Count Gibson ran a 3.99 fast lap combined with solid 4.0's to keep us second at the end and take the win.

No Smoked motors and I think only Rollin changed because the car was slowing down somewhat.

The podium was all Hawk 6. Great little motors !!!

Team Wolfie ran much better then your third place finish.


Fun Day !!!

[Wizard Of Iz]

How about a follow-up:

I bought two Hawk 6s to test them for a 3 hour enduro. I ran both motors about 15 minutes each at a local slot car track. I then sent the arms to Pro-Slot for re-balancing and comm true. Rebuilt the motors with Gold Dust brushes and trimmed them down to about 90 thou wide. Brandon and myself led 2 hours and 40 minutes of this race then broke a guide flag; we finished third. We took the lead during the second heat and stayed ahead for all that time. The race was fairly close with us pulling out about 45 lap lead which is about 3 minutes on this track. The Hawk 6 ran very strong most of the race, but had slowed aliittle during the last 1/2 hour, but we still had the 45 lap lead at that time. I was very impressed with this motor. The car handled great with it, and we out performed everybody with this motor. Most others chose the Hawk 7. Our Hawk 6 was clearly faster.

Yes ... it was very fast. Yet, amazingly, it was only capable of passing my tired Hawk 7 when you were on the inside lane in a corner.

Just curious, what gear ratio did you use? It looked to be just about right.

No Smoked motors and I think only Rollin changed because the car was slowing down somewhat.

If I had it to do over again, I would have (a) run the original motor until it died or ( started the race with a fresh motor instead of one that had already run an eight-lane change and © I would have hidden my prepped motor so that it wouldn't get un-prepped by accident.

[DOCinCanton]

Rollin: I think that I ran it at 12 on a 37 with new tire OD of 0.76". Yep, the inside lane is always faster; sorry about the paint on the side of your car.

The back-up motor was just as fast actually; so its ready for the next enduro.