WP0ZZZ Posted August 26, 2019 Share Posted August 26, 2019 I'm thinking about getting a set of narrow-body fibreglass bumpers inspired by the SC/RS that are manufactured by EB Motorsport. Has any of you fitted them to your cars? If so, would you mind sharing a few pictures of the car. Those are pictures from their website but I'm having a hard time at getting an idea about how the full car looks like: Link to comment Share on other sites More sharing options...
Kenny Senior Posted August 26, 2019 Share Posted August 26, 2019 I have a pair for sale if you want some cheap; Link to comment Share on other sites More sharing options...
Kenny Senior Posted August 26, 2019 Share Posted August 26, 2019 I have a pair for sale if you want some cheap; And what they look like on the car; Link to comment Share on other sites More sharing options...
camperco Posted November 29, 2019 Share Posted November 29, 2019 Are these still for sale? Angus Link to comment Share on other sites More sharing options...
Kenny Senior Posted November 29, 2019 Share Posted November 29, 2019 Mine. Yes, they're still in my workshop. Send me a PM. Link to comment Share on other sites More sharing options...
sopor Posted November 29, 2019 Share Posted November 29, 2019 Sorry to go a bit off-topic - any idea what the weight reduction is for these as compared to the original ali bumpers and their impact absorbing tubes? Link to comment Share on other sites More sharing options...
MikeS911 Posted January 5, 2020 Share Posted January 5, 2020 Have these now gone ? Mike Link to comment Share on other sites More sharing options...
786 Posted January 6, 2020 Share Posted January 6, 2020 @WP0ZZZ did you end up getting these bumpers fitted? here are some links for images: https://www.tuthillporsche.com/blog/bespoke-porsche-911-sc-build/ https://rpmtechnik.co.uk/restoration-project-builds/porsche-3-2-clubsport-prototype/ Link to comment Share on other sites More sharing options...
WP0ZZZ Posted January 7, 2020 Author Share Posted January 7, 2020 On 1/6/2020 at 1:16 PM, 786 said: @WP0ZZZ did you end up getting these bumpers fitted? here are some links for images: https://www.tuthillporsche.com/blog/bespoke-porsche-911-sc-build/ https://rpmtechnik.co.uk/restoration-project-builds/porsche-3-2-clubsport-prototype/ Not yet. I'm still pondering whether the weight benefit is worth it compared to the chances of deforming the chassis in an impact. What's the general opinion around here about fibreglass bumpers? Is there a significant loss in bumper effectiveness? Link to comment Share on other sites More sharing options...
Dr Rock Posted January 7, 2020 Share Posted January 7, 2020 There’s a total loss in bumper effectiveness, but they are almost no weight at the ends of the car, so they make a noticeable difference to performance/handling. Link to comment Share on other sites More sharing options...
WP0ZZZ Posted January 7, 2020 Author Share Posted January 7, 2020 Just now, Dr Rock said: There’s a total loss in bumper effectiveness, but they are almost no weight at the ends of the car, so they make a noticeable difference to performance/handling. That was my feeling... If I'm not mistaken they represent about 35 kg of weight saving and a reduction of moment of inertia. The gains are appealing... Link to comment Share on other sites More sharing options...
Dr Rock Posted January 7, 2020 Share Posted January 7, 2020 Bumper tubes are heavy as well. If you replace them with alloy you can save 1kg per corner. Link to comment Share on other sites More sharing options...
SilverWT Posted January 7, 2020 Share Posted January 7, 2020 4 hours ago, WP0ZZZ said: Is there a significant loss in bumper effectiveness? No. Two reasons. 1. IB bumpers are so low 90% of modern vehicles will ride straight over the top of them. An even higher % of those that will do most damage, e.g. HGVs, SUVs and Delivery Vans. I hit an Audi A6 from behind at a relatively low terminal speed, the nose of my SC just went under it's bumper. No damage to either car luckily. 2. A decent fg bumper acts as a crumple zone if it does hit something at the same height. I have personally crash tested a front fg bumper, at speed, against the pit wall at Brands Hatch in my 3.2. Bumper more or less disintegrated, absorbing a lot if energy, with little damage to the rest of the car. I'm convinced there would have been more damage with the std bumpers. There are threads, including a vid of the incident, on here if you do a search. Mark Link to comment Share on other sites More sharing options...
WP0ZZZ Posted January 7, 2020 Author Share Posted January 7, 2020 5 hours ago, SilverWT said: No. Two reasons. 1. IB bumpers are so low 90% of modern vehicles will ride straight over the top of them. An even higher % of those that will do most damage, e.g. HGVs, SUVs and Delivery Vans. I hit an Audi A6 from behind at a relatively low terminal speed, the nose of my SC just went under it's bumper. No damage to either car luckily. 2. A decent fg bumper acts as a crumple zone if it does hit something at the same height. I have personally crash tested a front fg bumper, at speed, against the pit wall at Brands Hatch in my 3.2. Bumper more or less disintegrated, absorbing a lot if energy, with little damage to the rest of the car. I'm convinced there would have been more damage with the std bumpers. There are threads, including a vid of the incident, on here if you do a search. Mark Interesting. I'm more interested in protection against walls and armcos like in your point 2. For the fibreglass bumpers to be somewhat effective, did you mount them onto the stock bumper tubes? Link to comment Share on other sites More sharing options...
SilverWT Posted January 7, 2020 Share Posted January 7, 2020 50 minutes ago, WP0ZZZ said: For the fibreglass bumpers to be somewhat effective, did you mount them onto the stock bumper tubes? No, "L" shaped ally brackets bonded to the back of the bumper and bolted to the bumper shock mounting holes. Mark Link to comment Share on other sites More sharing options...
mean in green Posted January 8, 2020 Share Posted January 8, 2020 I drove mine to be painted with the factory bumpers removed. It was surprising how much more nimble the car felt even just across town, the weight reduction being immediately apparent (and my car’s not heavy at just over 1,100kgs). I did refit rather than replace with lightweight alternatives though, once it eventually returned from Paint Jail. Link to comment Share on other sites More sharing options...
Beaky Posted January 8, 2020 Share Posted January 8, 2020 It's a shame EB sports don't make (or do they?) shortened alloy tubes to mount their bumpers? Link to comment Share on other sites More sharing options...
Dr Rock Posted January 8, 2020 Share Posted January 8, 2020 3 minutes ago, Beaky said: It's a shame EB sports don't make (or do they?) shortened alloy tubes to mount their bumpers? The mounts are not hard to get made... Link to comment Share on other sites More sharing options...
Busybee Posted January 8, 2020 Share Posted January 8, 2020 18 minutes ago, Beaky said: It's a shame EB sports don't make (or do they?) shortened alloy tubes to mount their bumpers? Aren't they just a length of ally tube squashed on the ends and drilled? Link to comment Share on other sites More sharing options...
Beaky Posted January 8, 2020 Share Posted January 8, 2020 7 hours ago, Busybee said: Aren't they just a length of ally tube squashed on the ends and drilled? Probably and hence my surprise the likes of EB don't offer them as part of a kit? Link to comment Share on other sites More sharing options...
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