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Tamiya F104 Pro!

Old 12-10-2012, 05:54 PM
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Originally Posted by mkennedy View Post
a 3.0 is fine for 21.5 f1. we run it all the time, especially rpm based motors
Even on a small 70x35' carpet track with lots of turns?
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Old 12-10-2012, 06:07 PM
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pretty much anything is fine in f1, ive ran down in the 2's and motor has never gotten over 55 degrees
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Old 12-13-2012, 08:20 PM
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Originally Posted by CR0SS View Post
Get yourself some styrene. I used it to fill all the holes on the rear pod. It is glued to my diffuser and can all be removed with just taking out two screws.

Hi there, where did you get those white plastic sheets?
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Old 12-13-2012, 11:54 PM
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Originally Posted by AreCee View Post
Even on a small 70x35' carpet track with lots of turns?
It'll work. If you don't like it, drop the pinion and pay attention to your lap times.
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Old 12-15-2012, 03:08 AM
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Default Carbon rear shaft problems

Just started my build of my F104 Pro and having trouble getting the 1060 bearings on the end of the carbon shaft. The shaft will not pass through the bearings.
Are you meant to use a different size bearing with the carbon shaft?

Anyone one else had this issue?
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Old 12-15-2012, 03:51 AM
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Originally Posted by I)arkness View Post
pretty much anything is fine in f1, ive ran down in the 2's and motor has never gotten over 55 degrees
The motor in my F104 hit 80 degrees at the Nationals.
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Old 12-15-2012, 02:56 PM
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Originally Posted by jsr555 View Post
Just started my build of my F104 Pro and having trouble getting the 1060 bearings on the end of the carbon shaft. The shaft will not pass through the bearings.
Are you meant to use a different size bearing with the carbon shaft?

Anyone one else had this issue?
Funny thing.. this morning they fit.. Migt have been the time of night or wine.. But its all good now... the build continues.
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Old 12-15-2012, 05:49 PM
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Default Ball diff issues

Serious question now. I have just built my ball diff and the lock nut seems pretty tight. However I still have a slight bit of sideways movement in the spur, between the two pressure disks and diff housing.
Is this normal, or do I keep tigting the lock nut till this slop goes. Mind you, this will make the diff pretty tight.

Thanks
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Old 12-15-2012, 06:23 PM
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This is normal. Keep in mind the only important part is that the diff rings/plates should be making contact with the diff balls, not the spur gear sides.
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Old 12-15-2012, 06:26 PM
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yeah as Dan said, are you sure your diff balls are larger enough? I use 3mm and it works sweet.
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Old 12-15-2012, 07:30 PM
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Originally Posted by Dan View Post
This is normal. Keep in mind the only important part is that the diff rings/plates should be making contact with the diff balls, not the spur gear sides.
Thanks. It is all good then. And yes they are 3mm balls.
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Old 12-16-2012, 06:49 AM
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Originally Posted by policeman0077 View Post
Hi there, where did you get those white plastic sheets?
Any decent hobby shop should stock it in a wide range of thicknesses. It's used for all kinds of static and railway modelling. Styrene sheet is commonly known as plasticard. If you can't find it locally there's plenty of styrene sheet for sale on ebay.
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Old 12-16-2012, 04:57 PM
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Hello Guys im a newbie to f1 racing my chassis is F104 pro Black Special, my previous run is, i used the stock sponge tires that come into the kit, and my batts. is 5000mah nimh, i had a very good handling, then the next race, my front tires broken, then i change it to both new front sponge tires tamiya brand and i replace the battery with the lighter lipo, my handling drastically change every time i go to hi-speed sweepers my rear end always sliding so i ended up spun around the track, what should i adjust to correct these problems? do i need to adjust my camber because i have istalled new tires in front and still old at the rear? my current camber is 0. hope someone could give me a tip! thanks
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Old 12-16-2012, 05:08 PM
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Originally Posted by er6f View Post
Hello Guys im a newbie to f1 racing my chassis is F104 pro Black Special, my previous run is, i used the stock sponge tires that come into the kit, and my batts. is 5000mah nimh, i had a very good handling, then the next race, my front tires broken, then i change it to both new front sponge tires tamiya brand and i replace the battery with the lighter lipo, my handling drastically change every time i go to hi-speed sweepers my rear end always sliding so i ended up spun around the track, what should i adjust to correct these problems? do i need to adjust my camber because i have istalled new tires in front and still old at the rear? my current camber is 0. hope someone could give me a tip! thanks

Hey man,

You can try a few things - generally, if your tyres are shot at both ends of the car then you should replace them all around, but I digress. Perhaps try any of the followign one at a time;

* Add more weight to the rear, as low down and close to the axle as possible.
* Adjust the T-bar.
* Stiffer spring in the rear shock - this should stop the weight transferring to the front on corner-in, and ensure that you have a bit more shock rebound and hence weight transfer over the rear on corner-out.
* Add a bit of toe-out on the front.
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Old 12-17-2012, 02:17 AM
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Just to add to Andysan's informative post; I would run some camber too, especially on the back. You say your running 0 degrees, if that's on the back, then that's half ya problem. Otherwise, welcome to the great class of F1.
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