SACHS CUP SHOCKS
02-02-2009, 06:05 AM
#2
Luis,
SACHS is standard setup for Cup and Cup S.
It's standard to keep the cars according to Spec. Racing regulations.
However, if the choice is free, then there are better solutions than the Cup SACHS dampers. Motec, Öhlins etc...
SACHS is standard setup for Cup and Cup S.
It's standard to keep the cars according to Spec. Racing regulations.
However, if the choice is free, then there are better solutions than the Cup SACHS dampers. Motec, Öhlins etc...
02-02-2009, 11:19 PM
#4
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I would respectfully disagree. The Sachs that come on the std Cup are very different than the Sachs that come on the Cup S. The Cup S has a 4-way through rod damper that is absolutely sate of the art and beyond anything that the other companies mentioned have to offer. The Sachs has a larger piston rod up front, a lower friction setup and better frequency response with lower hysteresis than the others. Incidentally, it is the same damper run on the Spider by Penske and Dyson last year.
The downside, they are very expensive.
The downside, they are very expensive.
02-03-2009, 01:04 AM
#5
Yes the ones I saw had some color adjusting ***** close to the lower part of the shock body.
http://www.sachsracing.com/owx_medie...a360/36044.pdf
http://www.sachsracing.com/owx_medie...a360/36044.pdf
02-03-2009, 03:47 AM
#6
I would respectfully disagree. The Sachs that come on the std Cup are very different than the Sachs that come on the Cup S. The Cup S has a 4-way through rod damper that is absolutely sate of the art and beyond anything that the other companies mentioned have to offer. The Sachs has a larger piston rod up front, a lower friction setup and better frequency response with lower hysteresis than the others. Incidentally, it is the same damper run on the Spider by Penske and Dyson last year.
The downside, they are very expensive.
The downside, they are very expensive.
If the Cup S version is superior to whatever Motons & Öhlins have to offer is left for another discussion.
02-03-2009, 09:25 AM
#7
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It's amazing what irresponsible spending will get you.
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02-04-2009, 08:44 AM
#12
Nordschleife Master
PCA is also allowing 4-way this year in GTC3 and 4, aren't they? Is there a big advantage vs. the 3-ways??
There is a subtle difference between 2 and 3 way adjustable shocks that has a large effect on how the car transitions weight in a corner. Unless you have a lot of experience in what adjustments do what, AND have the driver skill to feel the differences, you can get into trouble with multi-way adjustable dampers. The 4-way just adds a low speed rebound adjustment.
02-04-2009, 07:11 PM
#14
The sachs 996 Cup shocks are double adjustable, the Sachs 997 Shock is non adjustable. Both are legal on a 996. Also any double adjustable is legal as is the 996 nonadjustable stock bilstein. The bilstein is easy/cheap to rebuild, while the sachs are quite expensive to rework/refresh...toppracing@gmail.com all the options as takeoff's from cars I believe.
02-05-2009, 06:53 PM
#15
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The difference between 2, 3 and 4 way is purely adjustments. A 2-way damper adjusts low speed (meaning damper low frequency) in compression and rebound strokes. A 3-way adds high speed compression. Most 4 ways add high speed rebound but some add mid speed compression (Penskes). The more adjustment, the more control. I will confess that setting up a 4 way requires significant expense and expertise and even then it is hard to get right. In addition to complexity, the 4-ways generally do not operate as well as say non adjustables. (F1 teams use non-adjustable dampers - they dial in multi adjustables and then builkd those curves into non-adjustables). Most adjustables have resevoirs which have heat and pressure drop issues in the line. All this being said, when you get 3 or 4 ways right they are very sweet. You can dial in grip with low speed adjustments and still have planty of platform etc
As to the comments on Sachs vs. other brands: The Sachs and Ohlins are the only two major brands that have true through rod dampers. (Penske only has them available for F1) The Moton and JRZ are basically the old Koni design.
As for cost: The high end 4-ways range between ~$12,000-16,000 for a set .
As to the comments on Sachs vs. other brands: The Sachs and Ohlins are the only two major brands that have true through rod dampers. (Penske only has them available for F1) The Moton and JRZ are basically the old Koni design.
As for cost: The high end 4-ways range between ~$12,000-16,000 for a set .