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Old 04-07-2015, 04:59 PM   #1
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Default F104W Handling..new to F1 class

I just had my Tamiya F104W built. It has a Castle SVC Sidewinder ESC and a Castle 5700KV brushless motor. It has the stock rubber tires.
Here's my problem. The slightest throttle will make the car spin in circles, while going straight and I give more throttle in spins out, and lastly even at very slow speeds it will spin out while turning...

any help would be greatly appreciated
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Old 04-07-2015, 05:12 PM   #2
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what do you mean by 'stock rubber tire'?
I used front medium / rear hard compound on asphalt with 75 degree and it works fine. I'm talking about F104x1. So if you use the same compound under the same weather & ground you should be good specially since you have 'w' version. I used ride front soft / ride rear medium, same ground with 85 degree the car keeps spinning.
So I would check the compound of tire first and then check the diff. The tight diff can cause it. For me, I start loose and then keep tightening by 45 degree until the diff doesn't 'slip' when you pull the trigger from total stop.
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Old 04-07-2015, 05:31 PM   #3
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The stock tires for the F104W are pretty horrible...they harken back to the F103 days. If you get a set of the normal F104 rims and tires you will have better grip BUT the front end will be a lot wider than the rear. I saw 1 company make a set of aftermarket rubber tires for the F104W but I don't know if they still do or if they worked well or not. You would probably be better off with foam tires...but not sure if they are making them for the F104W or not.

Are you planning on racing or just driving around the neighborhood?
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Old 04-07-2015, 06:08 PM   #4
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TQ RC Racing has the the foams you need. I like the zen racing brand. I have both f103 and f104w cars and they are flawless with foams because the car is so wide.
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Old 04-07-2015, 06:19 PM   #5
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a few guys have just purchased F1's , were going to start an F1 class here in Northern California.
thanks for you reply
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Old 04-07-2015, 06:21 PM   #6
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the stock tires that came with the kit.
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Old 04-07-2015, 07:20 PM   #7
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Quote:
Originally Posted by CaliforniaF1 View Post
a few guys have just purchased F1's , were going to start an F1 class here in Northern California.
thanks for you reply
That's great! There are a few things your group is going to need to decide upon at some point...the big one being tires. Most groups within the US run rubber tires only classes because it keeps the class looking scale. If you mix foams and rubber tires then you may run into a problem with foam dominating the class if the grip is good. If the grip is bad then the rubber tires are going to dominate. Then you have overall width...there's 3 widths in F1, 180mm, 190mm, and 200mm. The F104W is 200mm while a standard F104 is 180mm. I believe the 3Racing FGX is 190mm...when rules were still pretty loose guys were widening the F104 to 190mm so that eventually became the rule that most places use. While it is cool to just run whatever when the group is still small...that's how we started too...if you don't plan for what to do when the group gets bigger that can cause problems later on.
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Old 04-12-2015, 09:26 PM   #8
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Quote:
Originally Posted by CaliforniaF1 View Post
I just had my Tamiya F104W built. It has a Castle SVC Sidewinder ESC and a Castle 5700KV brushless motor. It has the stock rubber tires.
Here's my problem. The slightest throttle will make the car spin in circles, while going straight and I give more throttle in spins out, and lastly even at very slow speeds it will spin out while turning...

any help would be greatly appreciated
The stock tires are not the best for traction - I had to switch the Tamiya branded ones to Pit Shimizu tires. The rear tires I went with PS-545 and the fronts PS-543. Also, make sure your diff is not too tight. When I had my F104W - my initial build had the rear diff too tight and it was challenging to drive even @ low speed. I just realized that you're running a 5700KV motor - that's a lot of power for an F1 car. I had a Sidewinder setup as my first BL setup on a shaft drive 4WD and it ripped. On a direct drive car - I can see why you're doing donuts on command. I would suggest you switch the Sidewinder to brushed mode and run the stock silvercan before you get new tires and see if it handles better.
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Old 04-12-2015, 09:35 PM   #9
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What part of California are you in?
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Old 04-12-2015, 09:36 PM   #10
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Quote:
Originally Posted by CaliforniaF1 View Post
a few guys have just purchased F1's , were going to start an F1 class here in Northern California.
thanks for you reply
what part of Northern California?
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Old 02-24-2017, 05:14 PM   #11
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Default Diff spur gear

Quote:
Originally Posted by CaliforniaF1 View Post
I just had my Tamiya F104W built. It has a Castle SVC Sidewinder ESC and a Castle 5700KV brushless motor. It has the stock rubber tires.
Here's my problem. The slightest throttle will make the car spin in circles, while going straight and I give more throttle in spins out, and lastly even at very slow speeds it will spin out while turning...

any help would be greatly appreciated
Maybe diff is in wrong postion side... if its wrong will block rear left wheel making the car spins... to fix you will need lift it of e turn by right side and enjoy. I hope it helps other people with same problem... sorry my poor language
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Old 02-24-2017, 06:11 PM   #12
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Wow...way to bring back a 2 year old thread
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