Motor combination for G27 lite f2000 spray glue and LOW power

[z-ya]

Monty can you recomend a motor combination for g27 lite at alpha raceway? My stuff is junk there!!!
I am now using 400x440 mags in a short 360 tall can 490 koford arms Honed to 502. Geared 10:42
with a 52 gram minimum weight .

[z-ya]

Monty throw me a bone, air gap to tight ???

[[email protected].]

Z-Ya,

Sorry, I missed your post last week, when all the junk about ISRA contender arms erupted south of you.

Yes, more gap (try .506", be prepared to go to .510") and since you didn't mention it make sure you are running the higher timed arms, 40* or more. I'm not certain, but I believe the Koford arms are also available in larger diameter than .490", and would be worth a try.

[qtupro]

Don't mean to intrude but I race that series. those magnet dimentions honed to a .506 32*timed arm geared 10/39 64 pitch is 1 combination I use. In fact that is what I used to win in January there. If you go to a 35 or 40 * arm I have used 9/38 gearing in 64 pitch.In Chicago this weekend I raced a 32* in a .506 hole with 10/39 gearing and was the fastest car out there but I drove like crap.Just my suggestions.
Kurt

[Ody]

Hey Kurt what did you yell to me as you looked down at the cars on the starting line in the 27 race and what did I tell you lol

[qtupro]

??? I know Gus whooped my arse ........ fast don't always win ...... Hey Jessica raced our gr 12 and turned hi heat with 57 and only jim r had a faster lap. she was doing real good until she got taken out on black and I had to dig for a gear.

[Ody]

You should have had a gear on an axle with a tire ready its quicker ............ like old lead wire Hummmmmmmmmm

[Stuart Koford]

The 490 32 degree arm will work fine if you put in the the .418 tall M471F CNC G27 light can with the M277L-440 G27 light mags. This magnet and can is what was used to win the Nat's this year. I would suggest a .502 air gap geared 10:39. The 360 tall can and 400 tall mags you have are probably not going to produce the best performance. To make the best of what you have got you might try 10:44 instead of 10:42. Monty is right we do make G27 arms up to .500 diameter. A larger diameter arm will have less torque due to the thinner magnets and resulting reduced flux so you will need a smaller pinion if you go to .495 or .500 diameter, likewise if you go to higher timing like 36 or 40 degrees you will have to go with a smaller pinion. .495 36d and 500 40d are quite popular however 490 32d seems just as fast and the arms should stay fast longer with the lower rpm.

[[email protected].]

Thanks for the clarification on arm diameters Stu!

For a long time now, I've been convinced that bigger is faster once all variables are maximized. To compensate for reduced magnet thickness, for instance, use a can with larger inside diameter. I also prefer to rev more with whatever lower gearing is required. The car should handle better with the motor providing more gyroscopic force. I will admiit its not as obvious in wing cars as it is in scale divisions, but the forces are very real.

F-2000 rules specify spray glue, and z-ya emphasized low power, so perhaps the note about winning the Nats this year isn't so relative. However, your referenced magnets, which are cut to the maximum height that the tolerances of the class allow, sound dandy to me. The full coverage by the can also seems to be a good idea both for maximized field and sheer reliability.

[Ody]

Gus won with a Jeff Jones HOH 418 tall setup puled strong all 8 heats puled strong enough to come back on black!
Arm diameter I cant give it all away call JJ/Monty have one built. ;)

[LindsayB]

Here is my 2 cents worth. First off we are talking Paul's track at Alpha, I will assume yes. This track has 2 real slow corners, red under the bridge into the 90 and black on the lead on. What ever gains you can get for the centre lanes you have the potential to lose far more on these lanes.

Paul runs his race on battery onlly but there is a lot of battery, so it is what I would term a "low" power track. Sticking to what I know, I would go with 490 Koford arms (500 will hurt you in the gutters). You need to know the timing on your armatures, if they are low timed crank with an endbell. You want to end somewhere near 40 deg. From the sound of the post I dont think you have an air gap issue, gearing for me 9:38 with this config - at 40 deg motor will be marginal with a 10th.

Next the car, you need something with low speed down force, try a fox head body, front wings "not stiff" just tapped well. Chassis, I have not had much success with cars shorter than 4.5. The quickest guys on the gutters are the Brazilians, F2000 has not banned speed rubber (that I know off) and it seems to work on Black and Red.

Hope that helps.

[z-ya]

The arms are all 40 degrees , they run well on our home track with medium power. They just suck at pauls unique power situation.I build my own motors and
have for years,that way I know who to blame .
Mark

[Ody]

1.
Rony fischler
417
2.
Emerson fischler
415
3.
Gus dimopolous
396
4.
Dave person
395
5.
Al harley
390
6.
Jose mario serra
389
7.
Bush
375
8.
Marcello serra
374
9.
Alex
360

[Dave P]

Hey Ody,
Those lap totals are from a 2008 C12 race
DP

[qtupro]

OK ....... hone to 505. Use a 490 dia arm. have it 32*. standard endbell. geared to 10/39. 4.500 or longer car. Phantom body winged 5X5. This combination worked at the first race of the year there. Car was fast. At the classic I was just as fast as the Brazzilians excpet for a problem on I think yellow. I did not use speed rubber. Alpha medium the whole time.

[Ody]

Just a reference to they were running speed rubber and we weren't their not unbeatable.

[LindsayB]

Got me beat ? 417 vs 395 - thats more than 2 laps a bracket.

[Ody]

12 years old and he made the podium. (their not unbeatable.)

[Les]

12 "ONLY" in years!!
Much older in spirit!! This kid is an old soul!!

[z-ya]

Ya I'm going to open the hole and crank the endbell . I tried both a phantom and toyota body 32mm high 5x5 wing , Alpha medium big hub wonder .

[qtupro]

MARK MARK MARK,
Read what I wrote again. STANDARD END BELL 32*. If you come to any of the Alpha races let me know ahead of time. I will bring an extra motor for you to try.
Kurt

[qtupro]

Mark,
I re-read your post. Try a 9 tooth pinion with those 40* arms. That works well for me at Port Jefferson and Flint in glue.

[z-ya]

I geared 10/43 72 pitch

[qtupro]

you are brave running 72 pitch in F2000. On my 27light stuff I am running 9-38

[bigbox17]

I ran the same gears (72p) on my 27 and won at both alpha and lucky bobs. no gear failure.

[THOBART]

I ran the same gears (72p) on my 27 and won at both alpha and lucky bobs. no gear failure.

Your out of your mind go with the toughest gear you can get. When you get hit from 4 lanes away it hurts!!!

[qtupro]

exactly my point. thank you Tony.