Random question about rally cars.

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Old Apr 10, 2005 | 09:51 AM
  #16  
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From: GST Motorsports - Rally Division
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the most common rally suspension on subies is DMS 50's (50 denoting that they have a 50mm wide shock body) - an inverted strut with plenty of travel and lots of threading on the coilover so you can set your ride height as low or as high (really important) as you need it to keep the car from bottoming out. DMS are manufactured in Australia.

Currently I'm using Tein HG's on my car, and they are at least as nice in terms of damping as the DMS' (I think they're way better) and they are a ton easier to adjust on the bump and rebound settings. The height range isn't as greatly adjustable as the DMS 50's, but there's enough range to set up for a variety of conditions. Tein's are manufactured in Japan.

The WRC guys (last I knew) were using Ohlins dampers with remote reservoirs which are *very* expensive, but obviously work well enough to justify the cost (how many rallies in a row has petter won now?).
Old Apr 10, 2005 | 04:34 PM
  #17  
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So how much are these DMS things going to cost me if I want to go over jumps?

I read the article in Sport Compact Car, but they never list any prices.
Old Apr 10, 2005 | 06:59 PM
  #18  
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Originally Posted by n192da
So how much are these DMS things going to cost me if I want to go over jumps?

I read the article in Sport Compact Car, but they never list any prices.
hey you dont need anything special to go over jumps

Old Apr 10, 2005 | 07:19 PM
  #19  
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Originally Posted by Krinkov
hey you dont need anything special to go over jumps


!!!


Explain!
Old Apr 10, 2005 | 07:23 PM
  #20  
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Old Apr 10, 2005 | 08:15 PM
  #21  
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Oh deer!
Old Apr 11, 2005 | 12:00 PM
  #22  
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Originally Posted by Krinkov
hey you dont need anything special to go over jumps


Jumps on stock suspension are absolutely no problem at all.






























Its the landings that are a *****.
M
Old Apr 11, 2005 | 12:37 PM
  #23  
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those WRC suspensions are micro-processor controlled. i have little doubt that when the car senses that the wheels have gone slack and the car is airborn, they are set up for a progressive damping effect to handle the landing before switching back to whatever track mode they were running before the jump.
Old Apr 11, 2005 | 01:19 PM
  #24  
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Originally Posted by yzercyber
those WRC suspensions are micro-processor controlled...
I'm not entirely sure about that, but yeah, I'm sticking to the $20,000 per corner estimate, those aren't your off-the-shelf Ohlins inserts they're using.....
Old Apr 11, 2005 | 01:44 PM
  #25  
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Originally Posted by psoper
I'm not entirely sure about that, but yeah, I'm sticking to the $20,000 per corner estimate, those aren't your off-the-shelf Ohlins inserts they're using.....
Yeah Peter did not like the active suspension they tried out on his car so hes sticking with conventional suspension, AFAIK no other teams use active or semi-active suspensions either.
Old Apr 11, 2005 | 02:34 PM
  #26  
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When I bought my DMS 50's a few years ago they were $600 a corner. Save yourself the headache of DMS customer service (or lack thereof) and get a set of Tein HG's from Gruppe-S.
Old Apr 11, 2005 | 08:04 PM
  #27  
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How're those Teins holding up, Neil? No more broken adjusters like on the DMS's, I hope? You going to Rim this year?

Leda has a nice rally coilover setup for Subarus too.

I'm running revalved and lengthened Bilsteins on longer, stiffer springs on the GTI. Nothing too fancy.
Old Apr 11, 2005 | 09:33 PM
  #28  
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Originally Posted by Krinkov
Yeah Peter did not like the active suspension they tried out on his car so hes sticking with conventional suspension, AFAIK no other teams use active or semi-active suspensions either.
if WRC teams are not using active suspension (and i believe you) then i'm totally awed by the cars and drivers. it's just uncanny what conditions these suspensions overcome. i saw a number of two, maybe three foot drops during the weekend's new zealand rally. sweden seemed to have it's share, too. is there any one rally in the WRC that has the most demanding jumps?

what suspension parameters can the driver adjust while at the wheel?
Old Apr 11, 2005 | 09:38 PM
  #29  
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Actually the rules for WRC do not permit any suspension adjustment from inside the car.

Mexico had a couple of pretty good jumps, as did Sweden, but I think Finland has the biggest one they still see on the tour- Safari Rally in Kenya had some wicked kickers but they don't go there anymore.

But the really punishing rallies this year are going to be Turkey and Acropolis, lots of rocks and bumps- neither tend to be fast enough for the big-air like we saw in Mexico and Sweden though
Old Apr 11, 2005 | 10:03 PM
  #30  
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There is no micro proc controlled suspension used in WRC, however all shock data is monitored by the very best in data logging equipment and is used at a later date per driver/venue to determine the correct shock build for said conditions.

Mike



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