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Old 03-28-2006, 10:48 AM   #1
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Which hex adapter do you run on your F201?

I'm still assembling my F201 and I've seen 3 different sizes of the aluminum hex adapters for the wheels: 4. 5. and 6mm in thickness. I've also seen different sizes of shims (washers) for these also. I have Ride rims and Shimizu medium tires. What is are you guys running out there? I have yet to see any recommendations or documentation on installation and adjustment of these parts. Help!!!

Last edited by scarymonster; 03-28-2006 at 10:49 AM. Reason: typo
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Old 03-28-2006, 11:08 AM   #2
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I always used the 6mm adapters but if I remember correctly the stock hexs for the car are 5mm.

With the 6mm hexes I never used any wheel shims and generaly ran the lower pillow balls about 3-4mm out in the front and 3.5-4.5out in the giving me track width of about 186-188mm depending on the track.

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Old 03-28-2006, 12:14 PM   #3
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Thanx for the info, mtveten. I've read alot of your posts in here. I take it 3.5 to 4 in the rear? Also, how far out should the upper pillow balls be? Or would I set the lower ones first and then the uppers will be determined by castor/camber adjustment?
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Old 03-28-2006, 12:25 PM   #4
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Width of the car is another tuning aid................
If you run the wide or thick hex`s your car will be more stable but have less overall grip. The thin ones will give you more grip , but be a bit more twitchy feeling but faster in the corners............

Paul.............................................
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Old 03-28-2006, 12:41 PM   #5
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Slotmachine, so what if I went with 4mm hex's for that quick, twitchy feel...would I use a shim or not? (prolly not) And would I then dial out the pillow balls to achieve the same track width as stated above by mtveten or settle on an even narrower track width? Max track width where I'm going to race is 200mm.
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Old 03-28-2006, 01:57 PM   #6
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The 4mm hexs don't fit without adding wheel spacers, most of the faster 201 drivers use the 6mm hexs or the stock plastic ones (5mm I think).

I use the lower pillow balls to set track width and adjust camber from the top.

In general a wider track width will slow the chassis roll @ that end of the car and increase stability but not effect mechanical grip. The wider setups tend to work better on high speed & long turns. A narrower width will help the car transition better in S turns but tends to make the car squar up to much in sweepers.

For a general guide on chassis dynamics I would recommend downloading the Hudy setup guide, the F201 is certainly not a sedan but the handeling principals are the same.

The functional track width for the 201 is about 190 -210, with the optimal range for most tracks in the mid-high 190s.

If you want to pm your e-mail address and the type of track you will be running on I can send you a baseline setup that should be very close.

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