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Old 04-05-2006, 11:14 AM   #316
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Originally Posted by mtveten
The HPI spurs with the adapter ring do not fit, I picked up the 100T version from my LHS only to find out it would not fit. The 103GT gears all have a lip on them to hold the bearing in place that missing from the HPI gear and the kit bearing does not fit in the spur. Myabe the lip is not needed and with a different size bearing it would work but is certainly not a drop in replacement.

I would suggest that those looking for gearing options order the .4 pitch spur set TAM53104 (white 93 & 104T) or TAM53900 (black 93 & 104T)

If anyone has gotten the HPI gears to work maybe they could post exactly what has to be done to make them fit.
I beg to differ! I put them in with no problem, I ran the car 20 minutes at a time with my new Lipo's and it works really well. It might not look the same as the spurs but it fits well and it comes with it's own balls.
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Old 04-05-2006, 11:35 AM   #317
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What bearing did you use the kit bearing is to big to fit in the spur?

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Old 04-05-2006, 06:33 PM   #318
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Default box stock f103gt

Hi I have just built my completely box stock tamiya f103gt last night and I ran it today in front of my house at low speed it runs fine then when I ran it at full speed the car would spin in circles! Any help would be appreciated thanks in advance
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Old 04-05-2006, 06:42 PM   #319
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Originally Posted by porsche boy
Hi I have just built my completely box stock tamiya f103gt last night and I ran it today in front of my house at low speed it runs fine then when I ran it at full speed the car would spin in circles! Any help would be appreciated thanks in advance
i assume you mean the car would spin in circles when you are trying to turn?

you need to be very smooth on the throttle for this car. if you are grabbing too much throttle when you are exiting a turn, the car will spin out.

also, id suggest you take it to your local track. the front of your house is probably fairly dusty and doesnt have a lot of grip.
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Old 04-05-2006, 06:55 PM   #320
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Hop upped my beastie last night, got the F1 pivoting rear end, turn buckle steering arms, some 0.1/0.2/0.3mm shims to get rid of the slop in the front axles, aluminium heat sink and some gears. The car is looking great.

Has anyone brought the TRF oil shock that is an option for this car? I am using a standard TRF shock off an old kit, and wonder what the actual differences are, whether it be the number of holes in the piston plate or something like that.
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Old 04-05-2006, 07:00 PM   #321
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Originally Posted by Burlap
Hop upped my beastie last night, got the F1 pivoting rear end, turn buckle steering arms, some 0.1/0.2/0.3mm shims to get rid of the slop in the front axles, aluminium heat sink and some gears. The car is looking great.

Has anyone brought the TRF oil shock that is an option for this car? I am using a standard TRF shock off an old kit, and wonder what the actual differences are, whether it be the number of holes in the piston plate or something like that.
You can get this car really smooth. I had my best run last weekend. Tires has a lot to do with it as well.
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Old 04-05-2006, 09:28 PM   #322
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Dan and Ritche had thier 103GT's hooked up pretty well at TCS at SIR, I am pretty sure Ritchie is useing the Pivot Ball rear, Dan was using the Stock O-Ring set up.

Dan helped me out with a set up that made all the diff in the world for me. I tightened the t-bar pivot screw 1 full turn from stock setting, AW grease on the slider, B3 tires, with Yoke med-hard thin inserts on +2 Tamiya wheels, Asc 22 front springs, 3 hole piston Silver shock with 40 w Assoc oil Tamiya yellow spring, 2002 NSX body.

Have fun, good luck
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Old 04-08-2006, 10:11 AM   #323
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Hi Guys,

We got a few more new hop-ups for the F103GT series cars:

Alum. motor mount height adjustable

Carbon 3.0mm lower chassis

The TRF Special Dampers are back in stock as well and also Spare parts are now available

Steve Wang
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Old 04-09-2006, 06:26 AM   #324
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Quote:
Originally Posted by porsche boy
Hi I have just built my completely box stock tamiya f103gt last night and I ran it today in front of my house at low speed it runs fine then when I ran it at full speed the car would spin in circles! Any help would be appreciated thanks in advance
Ey, dont sell your kit right away. Mine is also box stock except for the 18T pinion and the tires. Dont use the kit tires for the rear. I suggest you use the front stock tires in combination with sorex 32r or tamiya b3. This will give you a lot of understeer but better than spinning in circles. Its like driving a spool. Heavy breaking before corners.
If you want to use 24mm tires all the way, try 24r,32r front with 40r rear. The car is very picky with tires and I usually change tires depending on the weather.
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Old 04-13-2006, 01:56 AM   #325
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Default hopped!

Finally installed my hopups!
Attached Thumbnails
Tamiya Direct Drive Touring Car-f103hop.jpg  
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Old 04-13-2006, 07:06 AM   #326
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hey Izzy... is that a std white spring, or one of the white springs with the color dot? im trying to figure out where to start....
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Old 04-13-2006, 07:33 AM   #327
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Just wanted to let everyone know that the TCS race in MEMPHIS, TN is coming up in two weeks, APRIL 30, Sat. we have a Club race any car brand can run and Sun. is the TCS race, we have 48 entries so far, i think like 9 or so in F103GT, you can check out more at www.tamiyausa.com or our club site at www.msra-racing.com , CYA
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Old 04-13-2006, 07:39 AM   #328
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Quote:
Originally Posted by izzyracer
Finally installed my hopups!
No turnbuckle steering arms?
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Old 04-13-2006, 08:26 AM   #329
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No turnbuckle steering arms?
It' still in the package. I'm going for lightweight!
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Old 04-13-2006, 08:29 AM   #330
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hey Izzy... is that a std white spring, or one of the white springs with the color dot? im trying to figure out where to start....
The spring has a red dot which is the one that came with the shocks. Frankly, this is probably not what I will end up up as far as set-up. I suggest you start with your middle spring rate. That way you can adjust up or down.
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