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 Post subject: Setup question concerning XII
PostPosted: Mon Feb 16, 2009 17:13:26 
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Joined: Fri Aug 24, 2007 11:35:56
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Location: Germany
Hey,

I ran my new XII last weekend and was pretty satisfied with the handling etc.

But there's one issue I couldn't solve as I don't have that huge experience in this class yet.

:idea: I need a bit more steering in high speed chicanes, that means under full power/throttle. The steering in slow chicanes is almost too much/aggressive, so I decreased the steering travel ways of my transmitter from 100 to 85%, what also affected a little (very little!) bit more high speed steering - strange but true.
I used Jace tires, double pink (=35 ) at the rear and lilac (=38 ) at the front.
I treated the rear tires to 100% and the front ones to 75% with tire lubricant.

So I hope some 1:12th cracks can help me.
Thanks in advance! ;-)


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 Post subject:
PostPosted: Mon Feb 16, 2009 17:19:13 
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team driver
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Joined: Wed Nov 02, 2005 18:09:41
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Location: Tennessee
Post your entire setup here and I'll see if I can help you out some. What type of surface are you running on?

I got to run mine for the first time this week on low/med grip carpet and it was really good for the first time out.

Thanks
EA


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 Post subject:
PostPosted: Mon Feb 16, 2009 22:26:10 
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Location: Germany
Hey,

thanks for your quick response.

Here is my full setup sheet: xform/index.php?act=view&ID=1861&setup=XII

And this is the track: http://img-up.net/?up=Halle_1RcgiiCn.jpg


Greetz


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 Post subject:
PostPosted: Mon Feb 16, 2009 22:54:07 
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Joined: Tue Sep 14, 2004 23:03:21
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Location: Schiedam, the Netherlands
OK few things I would :

Rear track wide is to small; you should have 2.5 mm maybe 3 mm spacers each side at the rear axle so track with at rear would be near max 172 mm )

Try more cambor at the front: 1.5 or 2 degrees should do the job.
I also personally don't like very soft front springs. I never run 0.18 asso. always 0.20 or even 0.22


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 Post subject:
PostPosted: Tue Feb 17, 2009 03:18:48 
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team driver
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Location: Tennessee
Do you need less or more steering? Your post here says more but your comments on your setup sheet say a little less nervous in high speed chicanes.

I would widen the rear out to 172 as posted already.

Going to more camber in the front will give a lot more steering and make the car on edge even more.

You can move the tweak screws back to the rear holes on the T-plate and this will make it a little more reactive on power. Also moving the batteries to the rear will give more steering as well. Heavier on the dampner disk will take some nervousness away in quick corners/direction changes.

EA


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 Post subject: :arrow:
PostPosted: Tue Feb 17, 2009 22:59:58 
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Location: Germany
Hey EA and Frans,

thanks very much for your tips. =)

EA: In slow corners I got plenty of steering - up to the point I am applying full throttle and steer then. Then I have the feeling my car is "quivering" - but don't consider that too much as I - like I said - don't have very much experience with those pan cars.
So this quivering could be more or less normal, don't really consider that.

Is there any setup possibility to gain only at full applied throttle more steering?

Thanks mate.


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 Post subject:
PostPosted: Wed Feb 18, 2009 02:18:18 
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team driver
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Joined: Wed Nov 02, 2005 18:09:41
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Location: Tennessee
Moving the batteries to the rear will give more steering everywhere. Shortening the rear shock a little (Half a turn makes a huge difference!) can also give more on-power steering as it will transfer less weight to the rear tires.

Generally in a pan car everything you do will give more steering on and off power. Its a little different than a TC due to the solid rear axle and limited suspension.

EA


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 Post subject:
PostPosted: Wed Feb 18, 2009 16:14:31 
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Location: Sweden
Try lower punch on the ESC, high acceleration will transfer more weight on the rear tires and less on the front tires and gives less stering.


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 Post subject:
PostPosted: Thu Feb 19, 2009 18:16:30 
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Location: Trencin, Slovakia
The online set-up sheets for XII are already available in the XRAY Set-up Sheet Database system.


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 Post subject:
PostPosted: Fri Feb 20, 2009 16:01:02 
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OK, so I will try your tips these days.

Thanks very much again for your help!

:)


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 Post subject:
PostPosted: Tue Feb 24, 2009 21:32:40 
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Joined: Tue Sep 14, 2004 23:03:21
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Location: Schiedam, the Netherlands
Hurricane '007 wrote:
OK, so I will try your tips these days.

Thanks very much again for your help!

:)


Hope the tips from all of us helped


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 Post subject:
PostPosted: Wed Feb 25, 2009 17:05:44 
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Joined: Fri Sep 10, 2004 19:27:57
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Location: Sweden
You might also want to try a stiffer shock spring or heavier oil for more on-power steering.


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