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Old 12-26-2009, 11:44 AM   #436
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Dumb question, Can someone tell me what roll out means when it comes to gearing. I am currently running 28/98 gears thanks
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Old 12-26-2009, 03:38 PM   #437
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Dumb question, Can someone tell me what roll out means when it comes to gearing. I am currently running 28/98 gears thanks
Rollout is most commonly used with foam tires. For the sake of this conversation if your tires were 26mm your rollout with you current gearing is 23.34mm which mean for every revolution of the motor your will have traveled 23.34mm.

Because foam tires have appreciable wear compared to rubber tires you will find that users of foam tires:

1. Have to change gearing more often to compansate for changing tire diameters.
2. Often times refer to their gearing in terms of rollout rather than FDR, which will allow you to calculate a similar gearing based on your tire size.

To calculate your rollout you can go to www.gearchart.com and enter in your specific information and get your actual rollout information. You can then use that information to compare with other foam tire users for the motor type you are using to get to the desired gear ratio.

If your area use rubber tires and still refer to their gearing using rollout all is not lost you only need to know the tire diameter they are calculating with and plug that data into the website and you will get the information that you are looking for.
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Old 12-26-2009, 06:36 PM   #438
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Jseay, thanks alot for your help!
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Old 12-26-2009, 06:38 PM   #439
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Originally Posted by racer x 1 View Post
hey does anyone know the diameter of the trg rubber tires?
56mm diameter for rears and fronts.

OM
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Old 12-26-2009, 10:48 PM   #440
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Hy there !

Does the F109 body and wingset fit the F103 without any issues ?
Pics would be nice !

Greetz Blueman
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Old 12-27-2009, 12:26 PM   #441
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Here is a build thread and Review of the F109

http://thercracer.blogspot.com/2009/...nd-review.html

Hope its useful
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Old 12-28-2009, 07:00 AM   #442
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I'm trying to find a Servo for the F1-09.

Should I try to find a Low Profile like the S9951 or a Std Size?

Has anyone tried the Hitec HS-77B, its a low profile decent spec, analog servo that only cost $26. Would that work well?

What do you guys suggest. I'm new to on-road carpet racing.
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Old 12-28-2009, 07:46 AM   #443
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Anyone recommend what size 48dp spur gear to replace the kit one with?
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Old 12-28-2009, 08:35 AM   #444
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Quote:
Originally Posted by Matt Chester View Post
I'm trying to find a Servo for the F1-09.

Should I try to find a Low Profile like the S9951 or a Std Size?

Has anyone tried the Hitec HS-77B, its a low profile decent spec, analog servo that only cost $26. Would that work well?

What do you guys suggest. I'm new to on-road carpet racing.
The lower the better! - I can recommend the BlueBird BMS-761DD for the F1-09 (it's like 0.10 on 6V).

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Anyone recommend what size 48dp spur gear to replace the kit one with?
Kimbrough 48DP, 72T-78T - that's what I use ..
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Old 12-28-2009, 08:48 AM   #445
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Is that a pretty tough servo? Or should I buy a couple of gear sets too?

Its out of stock everywhere I have looked.

Any other options?

edit: found the metal gear version at bphobbies.com for only $22. Thats a steal.
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Old 12-28-2009, 09:02 AM   #446
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Quote:
Originally Posted by Matt Chester View Post
Is that a pretty tough servo? Or should I buy a couple of gear sets too?

Its out of stock everywhere I have looked.

Any other options?

edit: found the metal gear version at bphobbies.com for only $22. Thats a steal.
I don't think the gears will be a problem - my guess is that electronics will be the weak point in a lower budget servo like this.
Instead of buying spare gear sets i have a new servo (metal gear version) in my pit box.
Low profile servo is the best choice for the F1-09 IMHO - but beware, not all low profile servos are equally low!
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Old 12-28-2009, 09:14 AM   #447
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Quote:
Originally Posted by romuald31 View Post
Hello from France,

Joyeux Noël to everybody...

The old man bring me the fabulous F109 kit!!

But because of you Inzane, I receive a lot of things...

- 3R F109
- Combo EC Power 60A + 8.5 t brushless motor
- 2 LiPo 7.4V/4200mAh/35C
- Ko 2413 low profile servo
- 3R blue caster alu mount
- 3R blue front knuckle arms
- 3R blue alu servo saver
- 3R full Ti turn-buckles
- 3R rear shaft (2 spare parts)
- Kawada 48dp 20/22/24/26t pignons
- Kawada 48dp 74/76/78/80t spur gears
- ceramic dif balls
- 3R F and R tyres
- tyre truer F1 adaptater
- Paragon
- Team Asso front hard springs

and soon:

- another LiPo pack
- CRC springs mod

It will be my first electric kit!!!

I enjoy to see this kit. I will begin the construction soon.

Au revoir
Looks like a killer car - Happy New Racing!

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I'm enjoying racing my f109, the car seems to be hooked up really well out of the box. Here is a pic of the car




My blog will have set-ups and reports from the racing series I will be in. The build thread will be ready in a day or so as well

Cheers
Excellent step by step building guide - everyone buying a F1-09 should pay your blog a visit..... hmm ... you "stole" my next paint scheme ...
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Old 12-28-2009, 09:19 AM   #448
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Quote:
Originally Posted by InZane View Post
I don't think the gears will be a problem - my guess is that electronics will be the weak point in a lower budget servo like this.
Instead of buying spare gear sets i have a new servo (metal gear version) in my pit box.
Low profile servo is the best choice for the F1-09 IMHO - but beware, not all low profile servos are equally low!
Yeah, probably right. How long have you been using yours and what is your experience with it? Does it center well?

I went ahead and ordered a Metal Gear version, total cost including Shipping was $29.XX, pretty good deal if the servo turns out to be a good one.
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Old 12-28-2009, 09:26 AM   #449
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Quote:
Originally Posted by Matt Chester View Post
Yeah, probably right. How long have you been using yours and what is your experience with it? Does it center well?

I went ahead and ordered a Metal Gear version, total cost including Shipping was $29.XX, pretty good deal if the servo turns out to be a good one.
Good luck with the new car/servo. After +5 hours and a lot of very tough "product tests" my BlueBird servo still centers perfectly (I'm using the kit saver)

Oh .. I forgot to link to Qatmix's blog
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Old 12-29-2009, 11:27 AM   #450
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Nice Jaguar Qatmix! and good step by step
romuald31, where do you find the ceramic dif ball for kawada 48DP?
For the servo's center problem, i had it on begining. i resolved the issue by adding some few glue on mount and between chassis and servo. it works well.
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