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Old 09-03-2009, 02:06 AM   #751
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oh yeah........the angle of the top arm is increased which will effect your camber so you might want to change your inboard camber setting to counter this if you dont like it.
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Old 09-03-2009, 02:29 AM   #752
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My next tuning option is to try the TRG rubbers as thats what everyone uses in our club, apparently theyre the tyres to use, I can keep up with an F103 running TRGs with Zen 25s on my F104
I've got a set of the TRG wheels, and the inside diameter of the wheel is virtually the same as the length of the kingpin, so no amount of washers will really help

Is there another wheel the TRG tires will fit on? I'd really, really like to try them
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Old 09-03-2009, 02:33 AM   #753
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bugga.....i was hoping to try those too, well might have to stick to foams until TRG or someone make some rims and tyres to suit
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Old 09-03-2009, 02:35 AM   #754
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I dont suppose the wheels of the F103LM will work? they were released with tamiya rubbers, or are they the same size as the TRG's?
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Old 09-03-2009, 02:37 AM   #755
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Hey junn, thanks for posting. Is the rear still wider than the front?

Looks like Zen has some donuts for the F104 now. There's a 40 front and a long-life less grippy unknown compound. There's also a 25 and 30 rear. Would be interesting to give some of those a go...

http://www.rc-zen.com/F104ringtyre.html
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Old 09-03-2009, 02:38 AM   #756
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can you not fit the washer above the wishbone so it does not alter the camber but still lift the kingpin?
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Old 09-03-2009, 02:48 AM   #757
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Not a problem, ive been a member of this forum for 5 years and ive finally been able to contribute something

thats a good idea too putting the spacer under the top clip.

I got prices from RC champ for those Zen tyres but one of the guys in the club gave me the Zen/F103 tyres to try as I was having a horrible time keeping the car from swapping ends. Im not sure what it would be like with F104/Zen rear tyres as opposed to the wide F103, theres no substitute for contact area

The back is definately wider than the front it measures 200mm across the rear tyres and 178mm across the front
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Old 09-03-2009, 02:51 AM   #758
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Hmmmm could lathe of the difference?
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Old 09-03-2009, 02:52 AM   #759
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thats a good idea too putting the spacer under the top clip.
I have them some days
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Old 09-03-2009, 03:04 AM   #760
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theres no substitute for contact area
Thanks for the measurements too.
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Old 09-03-2009, 04:35 AM   #761
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Hi,

I have got my old F102 out to run against the F104s. I've bought some premounted wheels and tyres by Zen RC from RCMart but they are one piece. The F102/3 wheels are two piece with the thrust bearing inside. Anyone know what i do with the thrust bearing please?
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Old 09-03-2009, 08:46 AM   #762
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I'm thinking of making some new front spindles that would push the wheel out further, so the TRG wheel will clear the kingpin. Does anyone have an F104 and a TRG front wheel that could tell me how far the wheel would have to be pushed out to clear the kingpin? Based on the measurements given before, I could push each wheel 11mm and still have the front wheels be the same track width as the rear using rear TRG rubber tires.

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Old 09-03-2009, 10:19 AM   #763
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The tech car looks to have the same hole pattern for the front end as Tamiya. The front end from the 125 would probably be the correct width if you're gonna run F103 tires.
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Old 09-03-2009, 11:11 AM   #764
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Hi,

I have got my old F102 out to run against the F104s. I've bought some premounted wheels and tyres by Zen RC from RCMart but they are one piece. The F102/3 wheels are two piece with the thrust bearing inside. Anyone know what i do with the thrust bearing please?
Just pull the thrust bearing out of your Tamiya wheels and slide them into the Zen wheel (the wheel inner diameter allows this)
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Old 09-03-2009, 11:52 AM   #765
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The tech car looks to have the same hole pattern for the front end as Tamiya. The front end from the 125 would probably be the correct width if you're gonna run F103 tires.
Any link to that part?
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