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vwairheads
Samba Member
Joined: March 26, 2007
Posts: 675
Location: chula vista
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 Posted: Sat Mar 01, 2008 5:40 am Post subject: rack and pinion kit pics for ghias and beetles |
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58Dub
Samba Member
Joined: June 02, 2004
Posts: 1713
Location: Davison, MI
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| Posted: Sat Mar 01, 2008 6:31 am Post subject: |
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| so...is this a kit that is available? from where and how much? |
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hpw
Samba Member
Joined: July 17, 2006
Posts: 3010
Location: memphis
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Joval
Samba Member
Joined: January 15, 2007
Posts: 176
Location: Ireland
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| Posted: Sat Mar 01, 2008 7:20 am Post subject: |
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| 58Dub wrote: |
| so...is this a kit that is available? from where and how much? |
I'm guessing ebay from the pics, but can't find it listed... |
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Max Welton
Samba Member
Joined: May 19, 2003
Posts: 10697
Location: Black Forest, CO
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Joval
Samba Member
Joined: January 15, 2007
Posts: 176
Location: Ireland
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the caveman
Samba Member
Joined: August 09, 2004
Posts: 885
Location: island state of Montreal
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| Posted: Sat Mar 01, 2008 10:14 am Post subject: |
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| Almost looks like a rack from a fox |
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Eric_S
Samba Member
Joined: August 12, 2007
Posts: 862
Location: Sparks (think Reno) NV
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| Posted: Sat Mar 01, 2008 11:02 am Post subject: |
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RHD.
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Eric_S
What are all these extra parts? |
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Fibersport
Samba Member
Joined: September 23, 2005
Posts: 1156
Location: Lansing, IL
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| Posted: Sat Mar 01, 2008 1:32 pm Post subject: |
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$1888 US - ouch!
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1973 Standard Beetle |
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Joval
Samba Member
Joined: January 15, 2007
Posts: 176
Location: Ireland
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vwairheads
Samba Member
Joined: March 26, 2007
Posts: 675
Location: chula vista
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Scott Novak
Samba Member
Joined: October 12, 2004
Posts: 1586
Location: Minneapolis, Minnesota
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| Posted: Mon Jan 26, 2009 10:13 am Post subject: |
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| hpw wrote: |
| Stupid question, but what is the advantage of a rack and pinion over a stock gear box? |
The play on a stock VW steering box can be adjusted so that it is tight without slop when the wheels are straight ahead. However, as soon as you turn the wheels in either direction, the play increases significantly, getting worse as you turn the steering wheel further. It's a characteristic of the type of steering gearbox that VW uses.
The play, in a rack and pinion steering gearbox in good condition, DOESN'T change as you turn the steering wheel. It's much more precise.
Also, when set up correctly, you can use equal length tie rods with a Rack and Pinion that reduce bump steer. Bump steer is a condition caused by unequal length tie rods when the direction of steering changes when your wheels go up or down. Longer tie rods also reduce bump steer.
The standard Beetle has unequal length tie rods.
The Super Beetle has long equal length tie rods, but it also has an extra idler arm, and the bushing in the idler arm is notorious for failing quickly.
The rack and pinion setup only uses a total of 2 ball joints per side, also minimizing play.
Scott Novak
Last edited by Scott Novak on Tue Jan 27, 2009 3:03 am; edited 1 time in total |
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CBDZ_CBDZ
Samba Member
Joined: December 27, 2007
Posts: 363
Location: Eastvale, CA
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| Posted: Mon Jan 26, 2009 11:52 am Post subject: |
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OK...enough with the suspence.
What is that rack from? |
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vwairheads
Samba Member
Joined: March 26, 2007
Posts: 675
Location: chula vista
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| Posted: Mon Jan 26, 2009 7:11 pm Post subject: |
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| CBDZ_CBDZ wrote: |
OK...enough with the suspence.
What is that rack from? |
thats the problem but someone posted in grmanlook.com that it is the same rack and pinion from polo mk1,2,3, 86c, and audi 50. I think you can fabricate the superbeetle rack and pinion aswell because the tierods are mounted on the center. |
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17285
Location: Left coast, Canada
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| Posted: Tue Jan 27, 2009 1:43 am Post subject: |
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| Scott Novak wrote: |
| Bump steer is a condition caused by unequal length tie rods |
Not true.
Bump steer is caused by short tie rods. The fact they are different doesn't make bump steer happen. The short tie rod on the left side of a LHD Beetle is what causes bump steer. Narrow the beam, you make the problem worse.
The suspension above by red9design is CRAP. Look at those short tie rods on BOTH sides. They've taken the WORST characteristic of a Beetle suspension and DOUBLED it.
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| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
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51'splitDLX
Samba Member
Joined: June 13, 2005
Posts: 61
Location: Lakewood
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| Posted: Tue Jan 27, 2009 2:03 am Post subject: |
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2x bruce incorrect tie rod angles get worse when narrowing is done; the narrower you go the further out of sink things get!!! Ive been told that modifying the pitman arm can help fix this!
http://www.thesamba.com/vw/classifieds/detail.php?id=711188 |
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Scott Novak
Samba Member
Joined: October 12, 2004
Posts: 1586
Location: Minneapolis, Minnesota
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| Posted: Tue Jan 27, 2009 3:00 am Post subject: |
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| Scott Novak wrote: |
| Bump steer is a condition caused by unequal length tie rods |
| Bruce wrote: |
Not true.
Bump steer is caused by short tie rods. The fact they are different doesn't make bump steer happen. |
Actually, unequal length tie rods can cause bump steer, and shorter tie rods can make bump steer worse in some cases. In other cases, longer tie rods can CAUSE bump steer.
With a stock standard Beetle, if you hit a bump that moves both wheels upward the same distance and you have unequal length tie rods, the toe in or toe out on one wheel would be different than the toe in or toe out on the other wheel and the vehicle will be pulled to one side.
If the tie rods were equal length and both wheels moved upward the same distance, no matter what the length of the tie rod, both wheels would toe in or out by the same amount it would NOT create bump steer.
If you hit a bump with one wheel only, it will toe in or out and it will also pull the vehicle to one side. The shorter the tie rod, the worse the bump steer. There will ALWAY be some bump steer with it's geometry design.
However, if you had a double wishbone suspension with equal length upper and lower arms, and the short tie rods were also the same length as the wishbones and the tie rods were at the correct height, you would have ZERO bump steer, while the wheels were in the straight ahead position. A longer tie rod would actually CAUSE the bump steer.
How the length of the tie rod affects the bump steer depends on the type of suspension geometry.
Scott Novak |
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Scott Novak
Samba Member
Joined: October 12, 2004
Posts: 1586
Location: Minneapolis, Minnesota
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| Posted: Tue Jan 27, 2009 3:08 am Post subject: |
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| 58Dub wrote: |
| so...is this a kit that is available? from where and how much? |
I don't suppose that the stock gas tank will fit with this rack and pinion modification, or will it?
Scott Novak |
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vwairheads
Samba Member
Joined: March 26, 2007
Posts: 675
Location: chula vista
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| Posted: Tue Jan 27, 2009 3:23 am Post subject: |
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| Scott Novak wrote: |
| 58Dub wrote: |
| so...is this a kit that is available? from where and how much? |
I don't suppose that the stock gas tank will fit with this rack and pinion modification, or will it?
Scott Novak |
I have no idea but you ca always find away to fit  but for those people where asking what kind of rack and pinion is it, its from vw polo mk1,2,3 86c, and vw derby. take a look click here http://cgi.ebay.de/LENKGETRIEBE-OHNE-SERVO-VW-POLO...72%3A1229| and this http://cgi.ebay.de/LENKGETRIEBE-VW-POLO-86C-1-1-33...otohosting
Last edited by vwairheads on Tue Jan 27, 2009 4:44 am; edited 2 times in total |
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vwairheads
Samba Member
Joined: March 26, 2007
Posts: 675
Location: chula vista
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| Posted: Tue Jan 27, 2009 3:30 am Post subject: |
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but I think the rack and pinion from a super beetle can be made also 
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