What wind motor?

[travymoto]

I just want to get some feedback from some of you guys. I am going to buy some mods and just wanted some opinions about what winds to get. The track is about 24oft center line and medium to high grip. Oh yeah...give some suggestions for EDM and Sprint(with foams offcourse)

Thanks

[corcarbill]

Start with the guys at your track. Ask them what motors they use.

I race at a track with about 170' line and the fast guys run 7x1 in both EDM & Sprint.

Hope this helps.

[lawtonlosi]

I dont think you can beat the round brush orion based motors, plenty of speed and efficient.

[Todd Putnam]

Travy: We haven't had to run anything hotter than a 10 turn at the Open Wheel race at Coopers. Your track is larger, and if there is good bite, I'd try a 10, maybe a 9 as well.
Hope this helps.

Todd Putnam
Putnam Prpulsion
www.putnampropulsion.com
518-452-0422
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[travymoto]

Todd,

Thanks for the reply. You ought to come down and race with us on the 19th-21st of August at Newredhobbies for there "Nationals" race. The track is indoors and the surface is great. We'll be running electric and gas. There are some pictures of the track in the Races Events section on this forum.

[Rayce]

Does anyone know what weekend the Custom Works Open Wheel race will be this year? Will it be at Cooper's again?

[pumpkinfish]

Todd, do you recommend flat or round wire and single or double turn for 10 turn mods?

[Todd Putnam]

Round wire is better suited for all oval applications. As far as single, double, etc, that is more of a tuning aid for the motor builders to alter the circular mills of the arm more than anything. As a general rule, stick with doubles and triples for dirt oval, and you'll be OK...
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[Rayce]

Generally speaking, the fewer number of turns (10 turn, 9 turn, 8 turn, etc.) the more RPM a motor will have and presumably more power. But what about doubles and triples? I'm kinda fuzzy on this but have been told that doubles will have a little less bottom end punch than a single, triple less than a double and so on. Is that fairly accurate?

[JoeDirt]

Does anyone know what weekend the Custom Works Open Wheel race will be this year? Will it be at Cooper's again?


did hear it was gonna be at coopers again this year, also heard it was gonna be 2nd week of december........just word of mouth.

[NITRO SPRINT]

I spoke to Rob Cutman at the DODC race at Staubs and he told me it will be at Coopers the 2nd weekend in December, just like last year.

[Todd Putnam]

Rayce: As a general rule, yes, you can assume that a triple will have more mid-top end than a single, and singles produce more bottom end. It gets more complicated than that, but if you are purchasing motors from a performance-oriented company, (rather that the mass-produced generic stuff) and you are receiving personalized service, than you will be OK.
There is a huge difference between motors wound for different applications. Offroad, Dirt Oval, Carpet Oval, On Road, etc; all require vastly different motors. From the actual arm blank, wire, brushes, springs, etc, all are application-specific.
The most common call we take here is, " I just bought a Trinity,Reedy, etc, motor and put it in my car and I'm getting killed in horsepower, even though it is a 10 double (or whatever) like the fast guys have." The difference is that there are about 100+ different combinations of 10 doubles, and only a handful that will be effective for your application. The guys that are competitive and are really fast aren't taking chances on an over-the-counter motor, hoping it works for their application...they are getting motors tailor-made for their application.

Hope this helps. If anyone has any questions, feel free to call.

Todd Putnam
Putnam Propulsion
www.putnampropulsion.com
518-452-0422
________
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[travymoto]

Todd,

Is there a general rule of thumb on how you would set up the timing using a mod motor for dirt oval? Or do ou just tune it to conditions? And if I have if my motor has a ton of torque would you turn the timing up or down to mellow it out a bit?

[Todd Putnam]

Travy: For the turns we use in dirt oval, start them at 18 degress, (1 and 1/2 tabs of timing if utilizing the endbell marks). Increasing the timing will increase RPM and decrease torque, and decreasing the timing will decrease RPM and increase torque. Be careful not to confuse too much torque with too much power. Many times you will have wheel spin because of too much power, and increasing the timing will only make matters worse.

-Todd
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[David Butts]

Mod motor racing is way too cool. In spec or stock classes it's more of a finese approach to motor tuning to get all you can out of the limited power they make. In open mod it's real easy to make more power than can be controlled. Throw in the fact that all electric dirt oval I'm familiar with uses 6 cells(as opposed to 4 as in pan cars) and you have the recipe for disaster that only oval racers can enjoy. The fastest laps may not be turned while you're blazing the tires down the straights or off the corners but darn it's fun.

Show me a racer or spectator who doesnt get a chuckle or an ooh ah moment out of a racers car that is out of control or just on the verge and you'll probably be looking at a dead person.

Plus there are few sounds in r/c racing as sweet as a low turn motor at full song in a properly setup and working car. Take it from somebody who has had many adult beverages while sitting along the back straight at the Snowbirds while the 6 cell factory mod cars are running. It gives the word WEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE a whole new meaning.

[DrOlds]

Like David said-mod rules! If you need more power just dial some in or drop a wind.If you need more power in stock get out your wallet-and it's still slow!

To expand on what Todd said,There are usually a couple ways to get around the track in mod.Turn the timing up and gear down,or turn the timing down and gear up.Any given motor will make it's most power at a certain timing,but often in dirt oval we don't have to squeeze every last bit of power out of our motors.As you turn the timing up brush and comm wear goes up too.I usually don't run my mod motors over 10-12 degrees timing and often less-it reduces the wear and maintenence a bunch.If I need more power I will just put a hotter wind in it.I also use the lower power/longer wear brushes-usually Reedy 729's.My brushes last longer than they did when I ran stock and my old batteries still make enough power.

[David Butts]

Hi Chadster!;)