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Tamiya F104 Pro!

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Tamiya F104 Pro!

Old 05-18-2009, 04:28 PM
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http://www.youtube.com/v/Eg14HpWw5vI&hl=en&fs=1

Last edited by robk; 05-18-2009 at 06:24 PM.
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Old 05-18-2009, 08:12 PM
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Originally Posted by Core Creations View Post
Champ has it listed @ roughly $150 plus shipping ($50)..

http://sv09.wadax.ne.jp/~rc-champ-jp...456283f0d02068
Now that would be a fantastic deal!!!
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Old 05-18-2009, 08:14 PM
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Has there been any hints on when it'll get released in the states?
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Old 05-18-2009, 08:47 PM
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Battery exchange

http://www.youtube.com/watch?v=-rq-b...eature=related
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Old 05-18-2009, 09:03 PM
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Looking at that it brings into question a possible weakness in the chassis...in a side impact I hope the pivoting platforms the electronics mount on are strong enough not to break off and drag the electronics.
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Old 05-19-2009, 03:17 AM
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Originally Posted by InspGadgt View Post
Your forgetting the Cross F1 which could run the battery in either configuration and ran very well with the battery in the in-line position.
The orginal Cross F1 was a very nice chassis and had alot more going on than just a center mounted battery option. It helps that the old AYK staff designed it. The rear rolling pod was a very big factor in makeing the chassis work. One of the guys I run with still uses this chassis,he has ran it for a number of years,but he runs the battery aft not center. We do not run Lipo.

The new Tech chassis with the center battery also uses a trick rear pod much like the orginal Cross chassis. The Tech chassis might be a better car to go with if you really want a center battery.

But really the center battery might not be an issue for people if they run Lipo as most people have to add a lot of weight anyway. Stick the weight in the rear.
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Old 05-19-2009, 10:26 PM
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Originally Posted by bakaguyjean View Post
But really the center battery might not be an issue for people if they run Lipo as most people have to add a lot of weight anyway. Stick the weight in the rear.
TCS has no weight limit
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Old 05-20-2009, 06:01 AM
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I found this about the battery change, it doesn't look blazing fast but it's easier than I thought it would be.

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 05-20-2009, 08:50 AM
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Looks like pit stop times in the endurance racing are going way up!
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Old 05-20-2009, 09:07 AM
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will they go the GT route with this chassis?

R
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Old 05-21-2009, 09:22 AM
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Does anyone know whether this puppy will fit a lipo, and does it have hex screws?
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Old 05-21-2009, 09:44 AM
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F104 delayed....it will be release middle of July, but...still, $150 USD plus the super dooper expensive shipping....LHS in US should be around $200 USD.
THe F104 came with similar options like the 103R except no alum motor mount...104 option motor mount and both left and right piece, then there are center pivot alum brace....still have some extra options to add onto the $200 price tag. Still...it is a great price for something new.
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Old 05-21-2009, 07:31 PM
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it doesn't look all that new, more like a factory team version of the 103. I'd like to see also try again with the 4-wd version
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Old 05-27-2009, 01:44 PM
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Hi Guys,

Really like the looks of the 104, in fact, I've pre-ordered to go alongside my elderly but new built Williams F201...

The battery thing I think is largely irrelevant, it's a question of packaging. I love the neat and logical appearance of this chassis.

The weight transferred by a car is to do with the height of the centre of gravity of the car and the roll centre heights. The centre mass of the battery is going to be at the same height as in the 103 and the 201, because the pack sits on the lower deck, and therefore the amount of weight transfer and roll should be the same, despite the fact that the pack is not hanging out the sides of the chassis.

Straight line stability should be better- longer, narrower cars tend to be much happier in straight lines. I don't think the width change is going to affect this car that much, in fact, I believe it could improve it's ultimate cornering power; the weight rolling around the roll centres is going to put more load on the tyres than the 103 because the amount of weight transfer is the same, and the weight is not going to be sent as far out.

The one thing we can't really draw comparisons from here is a real F1 car, in terms of weight distribution; they have brakes on the front wheels, we only have them on the rears. We could really do with 50:50 weight distribution, and similar tyre sizes front and rear, so that the total grip at the front laterally is the same as the amount driving the car forwards at the rear, but with a rear-brake car, that's more of a problem, as the weight transfers forwards.

We just have to drive around it. That said, I've never driven a pan car, but I do have an M04, which can be a little fruity...

I just want an F1 that looks like an F1, goes like one, and is a nice challenging drive...

Rod.

PS Apologies to any real chassis designers if I'm not right....
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Old 05-27-2009, 02:46 PM
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Originally Posted by Dave23 View Post
The weight transferred by a car is to do with the height of the centre of gravity of the car and the roll centre heights. The centre mass of the battery is going to be at the same height as in the 103 and the 201, because the pack sits on the lower deck, and therefore the amount of weight transfer and roll should be the same, despite the fact that the pack is not hanging out the sides of the chassis.

Straight line stability should be better- longer, narrower cars tend to be much happier in straight lines. I don't think the width change is going to affect this car that much, in fact, I believe it could improve it's ultimate cornering power; the weight rolling around the roll centres is going to put more load on the tyres than the 103 because the amount of weight transfer is the same, and the weight is not going to be sent as far out.
Yes it has to do with the height of the COG and the roll centers...but weight and where that weight is placed also play a large part of that. Think of the battery like the age old physics experiment of 2 bars of equal mass but different lengths...Hold each in the center and try to spin them, the shorter one is the easiest to spin. Now think of the battery like these bars, A battery crosswise on the chassis is going to be harder to get to roll, but once it rolls it is harder to stop, while a battery in-line will be easier to roll but also easier to stop.
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