 are bump stops necessary, about bumpstops |
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| 914-d |
 Jul 11 2020, 11:36 AM
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#1
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Newbie  Group: Members Posts: 37 Joined: 6-June 13 From: nor cal Member No.: 15,974 Region Association: Northern California  |
I purchased new bilstein shocks and struts for my project 914. Instructions state not to use the bump stops on the front struts.
My rear shocks as installed (KYB) did not have any bumpers. Decided to go with coilovers on the back and ordered the groundcontrol setup after watching Ian Karr's excellent video. In his vid, he cut the stops down as (IMG:style_emoticons/default/confused24.gif) per instructions. I don't have them, (well, unless I tear into another car) Do I really need them? If I do, where can I source them? |
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| SirAndy |
Jul 11 2020, 12:09 PM
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#2
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Resident German Group: Admin Posts: 41,616 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
The bump stops prevent the shock from bottoming out, which would destroy the shock. They usually come in 3 segments and can be cut down if needed.
You can work out how much bump stop you need by marking the shaft when it is all the way pressed into the shock (before installing). Once installed, you can cut down the bump stop to be just enough to cover your marking on the shaft (plus a bit of extra). That gives you maximum travel but still prevents the shock from bottoming out. (IMG:style_emoticons/default/popcorn[1].gif) |
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| brant |
Jul 11 2020, 12:40 PM
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#3
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914 Wizard Group: Members Posts: 11,619 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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I agree with andy
You can likely get by without if the ground clearance is stock But if the car is lowered or likely to bottom out you will eventually blow the shock |
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| 914-d |
Jul 11 2020, 01:56 PM
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#4
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Newbie Group: Members Posts: 37 Joined: 6-June 13 From: nor cal Member No.: 15,974 Region Association: Northern California |
On the fronts I am using 911 bilstein. Specs state bump stop is internal. No specks came with the rears...Ok where is the best place to buy?
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| mepstein |
Jul 11 2020, 03:23 PM
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#5
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914-6 GT in waiting Group: Members Posts: 19,255 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(914-d @ Jul 11 2020, 03:56 PM)  On the fronts I am using 911 bilstein. Specs state bump stop is internal. No specks came with the rears...Ok where is the best place to buy? WTB on world, 914rubber, and many other places sell the rubber pieces. |
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| 914-d |
Jul 11 2020, 05:43 PM
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#6
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Newbie Group: Members Posts: 37 Joined: 6-June 13 From: nor cal Member No.: 15,974 Region Association: Northern California |
Found some from URO...for vw, but wait. At least the back of the car is vw...right?
Look identical to stock 914, just a different color. We'll see in a few days. |
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