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Old 07-13-2006, 10:11 AM
  #1456  
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Originally Posted by nigelnuggets
steering arm meaning the ackerman arm? what is this steering arm?! its driving me crazy. and how does it affect performance?

is the upright like the kyosho now? like 0 and 2 and 4 degrees? that kinda thing?
Nope... look at the upright from the rear, the main difference is the arm where the steering is attached is 4mm lower, this means you can adjust now how high (or low) you want to put the steering arm connection.

How high (or low) will affect the steering on the amount of steering throw vs. the shock travel (during the travel of the shock, the toe-in/out adjustment will vary). Bumpsteer is an adjustment commonly used on Off-Road cars and helps on bumpy tracks. Sometimes better to not mess with bumpsteer...

Other adjustment possible with those new uprights is the wheel offset. The handling is different if the wheel sits inner or outer on the upright. I can think about the difference in handling regarding the offset, but after the shock of hearing that hard chassis improved traction on loose tracks, better to try by myself what does the offset change.
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Old 07-14-2006, 11:38 AM
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Use attached to visualize Corse-R's explanation if it is still unclear
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Old 07-14-2006, 08:03 PM
  #1458  
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So is that the suggested starting point with the new parts? (.5 spacer to outside and 1 mm shim under steering link)
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Old 07-15-2006, 03:02 PM
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Originally Posted by dpdiehl
So is that the suggested starting point with the new parts? (.5 spacer to outside and 1 mm shim under steering link)
Yes, and 1 mm (2 shims) on the inside .
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Old 07-16-2006, 10:16 AM
  #1460  
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Thx. so the new "standard" set up will be lowering the ball link height on the steering arm relative to the original parts. I wonder what effect that will have on bumpsteer and steering.
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Old 07-16-2006, 10:59 AM
  #1461  
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Originally Posted by dpdiehl
Thx. so the new "standard" set up will be lowering the ball link height on the steering arm relative to the original parts. I wonder what effect that will have on bumpsteer and steering.
I can only adventure about them... Asked for them at my LHS, but... aren't available (and much probably until Sept. nothing about those pieces - August will be a closed month for the importer).

I tried to figure what's happening when you modify and lowering the position of the steering link connector you're modifying the toe-out ratio vs. the shock travel (I could be wrong... but what I visualized is a small decrease of the toe-out of that wheel. In few words, the most compressed is the shock, the more inwards turns the wheel). Don't expect a dramatic effect. On those machines a 1 degree difference is really huge.

Maybe those parts make the steering faster (and could be.. more delicate). Better to not adventure what will do those parts until assembled and track tested. Anyone has available at their LHS? Tested them?
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Old 07-17-2006, 10:45 AM
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bump steer.
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Old 07-17-2006, 06:16 PM
  #1463  
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which online shop does parts that can mail order to australia? mushroom has some parts but not the ones i want.
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Old 07-18-2006, 12:51 AM
  #1464  
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Berkley why don't you try Tracside R/c in Brisbane they always have Mrx 4 parts in stock, prices are very competitive with shopping OS. Drop Jeff an email I'm sure he will only to willing to help. Their web address is tracksiderc.net/main.htm. You'll find their email address at the bottom of the page.
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Old 07-18-2006, 08:13 PM
  #1465  
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I want to download the manual for this car.
Can anyone help?
I've checked www.mugenseiki.com, but can't find it.
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Old 07-18-2006, 11:48 PM
  #1466  
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www.mugenracing.com Try there
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Old 07-19-2006, 09:16 AM
  #1467  
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Originally Posted by HarKonnenD
looked thru but no maunual online except setting sheets,....
In fact, i also want to see how is the installtion for the new upright and where are those shims(washers) to be placed.
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Old 07-19-2006, 09:32 AM
  #1468  
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Originally Posted by choisan
looked thru but no maunual online except setting sheets,....
In fact, i also want to see how is the installtion for the new upright and where are those shims(washers) to be placed.
Here is the link to the new setup sheet with the new front uprights.

http://www.mugenseiki.co.jp/mugen/mr...-e04kitstd.pdf

Paul
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Old 07-19-2006, 09:24 PM
  #1469  
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Originally Posted by chicky03
Here is the link to the new setup sheet with the new front uprights.

http://www.mugenseiki.co.jp/mugen/mr...-e04kitstd.pdf

Paul
Got it! Thanks!
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Old 07-20-2006, 12:22 AM
  #1470  
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Originally Posted by iwk2much
Use attached to visualize Corse-R's explanation if it is still unclear
interesting. so tell me mike. did you use this at the odonell championships? LOL

damn that short wheelbase business. HAHAHA
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