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Old 10-28-2012, 03:17 PM   #6211
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F1RC Club - Dyno Shootout
29 Oct 2012

Success is not only about the driver, but also the machine. This is to give recognition to the hardworking mechanics who build the best and fastest f1 rc cars for their drivers.



Test equipment: Home made chassis dyno.
Rules: 540 silvercan / 32T Formula Tuned, 3.7 FDR, 50c max battery, rubber tires.

Video Highlight

+ YouTube Video
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The Results



The Champ - Congrats!



This was a fun side event during our F1 race yesterday. Also a good tool to do quick technical inspection.

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Old 10-28-2012, 03:18 PM   #6212
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cool as heck! i like
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Old 10-29-2012, 02:22 AM   #6213
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Default HPI F10

Hi,
Does anyone still run the HPI F-10? Im about to start racing one on asphalt any tips & mods to make it handle good..............
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Old 10-29-2012, 09:17 AM   #6214
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Does the handmade dyno work for 2wd only? I think this is a very very useful tool for club racing as a whole. The fastest and slowest are almost 7 mph apart. What is the difference in the weight of the two cars and gearing? The speed difference seems to be a lot when the spec racing is well controlled.
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Old 10-29-2012, 03:02 PM   #6215
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I think different gearing is a very likely reason, aside from the usual suspects.
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Old 10-29-2012, 03:48 PM   #6216
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Originally Posted by ijdod View Post
I think different gearing is a very likely reason, aside from the usual suspects.
Wouldn't them all having the same FDR mean it was something other then the gearing that made the speed difference?
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Old 10-29-2012, 04:32 PM   #6217
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Hi,

Our main rule is 540 silvercan. But the Tamiya 32T (which seems to be slightly slower) is also allowed for racing.

Gearing is maximum FDR of 3.7. Some were testing with higher FDR like 4.1 just to see. Higher number FDR is allowed for racing.

Some put their cars on the dyno after a 15 minute race (where battery has discharged 2000 mAh) so slower readings.

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Old 10-29-2012, 04:34 PM   #6218
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Quote:
Originally Posted by superspeed View Post
Does the handmade dyno work for 2wd only? I think this is a very very useful tool for club racing as a whole. The fastest and slowest are almost 7 mph apart. What is the difference in the weight of the two cars and gearing? The speed difference seems to be a lot when the spec racing is well controlled.
I made the dyno specific to F1 cars, so rwd only. Cars weigh in the 1,040 ~ 1,200 gram range.

The FGX has rear toe in and gearbox transmission, causing drag and slower top speed.

Some were using their good silvercans. Others like me, have been using the same motors that have over 10 hours of use (and expected, slower than optimal).
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Old 10-30-2012, 01:23 AM   #6219
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The 32T is pretty much a diesel, low rpm high torque. At the 55mm tyre diameter used for rubber F103 tyres, the 32T needs 4 more teeth compared to our other club-spec motor, a Carson. They are completely competitive. I have no idea how a silvercan compares to either. In rollout terms, on our track it's ~70mm for the 32T, ~60mm for the Carson.

There's a reason why I'm wary of 'stock' FDR ratio's.
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Old 10-30-2012, 07:48 AM   #6220
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Quote:
Originally Posted by Taffyjnr5 View Post
Hi,
Does anyone still run the HPI F-10? Im about to start racing one on asphalt any tips & mods to make it handle good..............
Here is the link to the HPI F10 thread here on RCTECH.net (HPI's new F1). There is some good info in the thread about how to improve the F10.

I would recommend to switch to a ball diff in the rear. You may also want to upgrade to the Exotek (aftermarket) chassis.

Hope this info helps.
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Old 10-30-2012, 07:52 PM   #6221
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Let me know what primary chassis and hop ups kits that I would need for you to build it. I will buy it.
PM me
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Old 10-31-2012, 09:39 AM   #6222
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Just wishing you all a Happy Halloween from the Philippines!

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ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


Sights and sounds from outside my house and neighbors.
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Old 10-31-2012, 01:05 PM   #6223
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Gangnam (Kangnam) style
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Old 10-31-2012, 01:08 PM   #6224
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I think the chassis dyno will be a marketable product here in U.S.

Long time ago, there was a company that made roller car dyno, (thorp maybe?) I can't remember the name. I'm guessing you used an vendor software for the dyno or did you write the program?

That's really cool to see r/c F1 racing in Philippines
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Old 10-31-2012, 05:18 PM   #6225
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Quote:
Originally Posted by superspeed View Post
I'm guessing you used an vendor software for the dyno or did you write the program?

That's really cool to see r/c F1 racing in Philippines
I downloaded a free software called SimpleDyno. The dyno platform is just plastic roofing material (I also use the material as a setupboard, as accurate as glass). The roller is the rear axle of a Tamiya F1 with a slave motor as load.

Photos and video of how I did the dyno.

F1 is the biggest on-road class in my country right now. Happy as it is my favorite class.
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