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Old 12-02-2012, 09:45 AM   #16
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F1 even can't beat M-chassis at corners, but an 21.5t BL f1 is way faster than 17.5t BL M-chassis on straight
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Old 12-02-2012, 11:19 AM   #17
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At my local track, F1 lap times are about on par with our 17.5 M-class 4WD minis.

As mentioned in the thread, for 1/10th touring 17.5, its still faster because they have so much more grip with 4WD and more stability. So much easier to drive. However, have no problem keeping up with them on the straights with a 21.5 F1.
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Old 12-02-2012, 12:21 PM   #18
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A properly setup F1 can easily take turns, especially on a carpet track with foam tires.

But rubber tires, forget it, F1 can't turn in as fast as...well, anything 4wd.

Adding a 3.5 motor to an F1 is just for pure speed runs, forget about trying to race or even control it on a track, you'll never get to full throttle!
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Old 12-02-2012, 05:04 PM   #19
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true true. i m not intended to have it race as i would like to have speed runs. maybe in a later time i would start racing.
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Old 12-02-2012, 11:36 PM   #20
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For speed runs with 3.5 you better have a very long high traction straight to even start getting up to speed. I have run on a asphalt parking lot with a 110' straight with a 13.5t I barely made it to full throttle. As traction came up I was able to get the full throttle about 3/4 of the way down the straight.
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Old 12-03-2012, 02:05 AM   #21
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If you just looking for speed run. Put a 3.5T with 2S lipo in a 235mm pan car. Easily top 120-130km/h and it will handle as well. Anything faster than 17.5T in an F1 will be really hard to drive......
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Old 12-04-2012, 07:01 AM   #22
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now i m not sure about f1.. this is gonna be an off point question.. how fast is 3.5t on a belted drive chassis such as say xray?
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Old 12-04-2012, 09:07 AM   #23
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However fast you gear it for. Whats with this obsession with the 3.5? If you are trying to build an all out speed machine there are better motors and bigger batteries you can run with a higher turn (lower kv) motor. There's a few guys who tinker with mod sedan that are VERY good drivers and even down our straight with a 5.5/4.5 they have some issues.
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Old 12-05-2012, 06:27 AM   #24
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gosh i have no knowledge about it as i typically thought that the lower number of turns are typically fast.
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Old 12-05-2012, 06:45 AM   #25
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With a full blown mod TC, in "race trim" and on a large enough track (like where the TC worlds were this year) your talking 70mph, with it geared to go round corners too. Any faster than that your going run into issues with tires blowing out (why the put the chicane at start of main straight on the worlds)

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Old 12-05-2012, 07:07 AM   #26
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but why foams are not used on them though?
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Old 12-05-2012, 08:28 AM   #27
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Because rubber is the format that was mandated. Also foam tires dont tend to last as long as rubber tires, don't tend to work as well on non-prepped surfaces, and need to be cut down to help them be consistant.

Don't get me wrong, foams have their applications (I happen to run a crc wgt weekly) but for bashing, rubber is where you want to be. Yes the 3.5 is a fast motor, however it will be uncontrollable.

That is what everyone has been telling you. Fast is good but you can have too much power and with an 2wd F1, on the street, you are asking for broken parts and not alot of control with that 3.5. Get something in the 13.5-17.5 range (heck for racing we run 21.5!) and you will have alot more fun.
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Old 12-05-2012, 08:35 AM   #28
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of course, for the speed runs and foams are useable. true... true.. f1 still interest me but the barrier is the motor.... and burning money. haha
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Old 11-29-2013, 04:46 AM   #29
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I looked at pro10 chassis and compared to f1. its hard to find a chassis with 235mm wide because normally there is 200mm such as crc? The motor layout looks the same with the spur gear so that would mean f1 with 3.5t and foams in a straight line could possibly be fine?
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Old 11-29-2013, 09:06 AM   #30
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Quote:
Originally Posted by catalzzy View Post
I looked at pro10 chassis and compared to f1. its hard to find a chassis with 235mm wide because normally there is 200mm such as crc? The motor layout looks the same with the spur gear so that would mean f1 with 3.5t and foams in a straight line could possibly be fine?
What is the purpose of driving a F1 only on a straight line?

From experience in my club anything lower than 13.5T on F1 is almost undriveable by common pilots.
Except if you go for a Corally F1SL car which is no more than a pro 10 chassis disguised with an F1 body
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