07-08-2014, 02:32 PM | #141 | |
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you can still try to cut it that ABS plastic and align by removing bumper but at that point you will be spending good amount of time and possibility to ruin the part you purchase, if you're really experienced with that kind of stuff though and don't mind spending hours working on it I'd say go for it . I also like to save some money on basic stuff, in my opinion $650 is ridiculous for a brake ducting kit and insert so I wanted to make my own, see my Custom Brake ducting mod in DIY section (in my signature) and in order to figure out a good method I had to destroy a 12 ft ducting hose (costs about $70) .. I'm still happy that I didn't spend the $650 on that so it all comes down to cost and effort for the rest , I think @FT-86 SpeedFactory @plucas @eric6 can better answer your questions.. I am waiting on the new race version upgrade with supporting rods and hopefully I can try the newer version on the upcoming track events, I have couple events scheduled this week and will report back
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07-08-2014, 03:48 PM | #142 |
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Alright, first time stumbling across this thread and I figure I will take a stab at the questions presented.
Material: It is a plastic. I personally spent 50+ hours researching affordable materials that is aesthetically appealing, cheap enough for the masses, and rigid enough to handle the downforce created by the splitter. It is not proprietary, but seeing how we put in the R&D and effort to figure out the material we use, we decided to keep it to ourselves for the time being. Contrary to what most people think, R&D takes a lot of time, effort, and money. We still haven't covered our costs for the prototypes we built out of aluminum, ABS, and this material... not factoring in the engineering time. I apologize if this upsets anyone but the information is out there... if I found it, you can too. Here's a shocker... both Paul and I do not like using this material. Their are better materials out their and we want to use them. But the price point would make it un-achievable for 99% of you guys, so what is the point? Design: The design isn't complex but neither is the fundamentals of how a splitter works. That's the cool part about splitters, they all function if you follow a few certain rules. What we did do though, is offer CFD analysis which allows the end user to comprehend the additional grip offered at speed. It also allows the customer to better setup an entire car's aerodynamic balance for racing. Without this data, you can only guess at what other products out there do. Rigidity: Neither the splitter nor the bumper are the most rigid pieces out there. The splitter does fairly well by itself, but the bumper is all plastic and bows with much load added. That is why we are producing and coming out with a race splitter kit. This upgrade kit will add 34% more downforce with a minimal drag increase, and include a splitter tie rod kit that adds support directly to the crash beam. If you add a splitter tie to anywhere that isn't metal (APR's goes to the plastic bumper in all the photos I have looked at), the splitter tie is in no way holding much load, if any. Leading Edge Design: The whole trick with these splitters was to produce something that was affordable to the masses. While a contoured leading edge would be beneficial, we did not have the ability to do this cheaply. That sharp edge is great for cutting people's ankles as well ! I think I answered most of the questions. Thanks, Eric |
07-08-2014, 04:08 PM | #143 | |
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I would not order something with such a blatantly false statement regarding its material (if a manufacturer doesn't know enough about the material to know it isn't proprietary then what can I expect from the manufacturing quality?). This way we know that you put in actual effort to find a suitable material.
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07-08-2014, 05:06 PM | #144 | |
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Re: "something im going to smash the hell out of." – Some drivers, especially racers, figure this out ahead of time and make plans for timely replacement by having a spare handy. |
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07-08-2014, 06:01 PM | #145 | ||
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07-08-2014, 06:15 PM | #146 | |
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You could always buy it as a straight edge and later run a router over it...
I doubt th difference between a radiused leading edge vs. a straight edge would even be quantifiable on our cars. D Quote:
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07-08-2014, 06:41 PM | #147 | |
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07-08-2014, 07:24 PM | #148 | |
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I would guess that he's already done it, if only out of curiosity, unless perhaps he's using a service, having to pay for each run, and knew he wasn't ever going to be offering a radiused edge in the first place. I'm a data guy, so that drives my curiosity regarding subjects like this. |
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07-08-2014, 08:43 PM | #149 |
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Paul does all that. They have their own machines to do the CFD, but they've said it takes around 24 hours to run a single simulation. After they've built the model, which isn't a quick process either.
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The Following User Says Thank You to gramicci101 For This Useful Post: | plucas (07-08-2014) |
07-08-2014, 09:05 PM | #150 | |
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07-08-2014, 09:47 PM | #151 | ||
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Also a leading round edge isn't always a good thing if you are targeting downforce. Our sharp edge is actually doing something to make downforce, but I am not giving out that information. I will say though, rounding the edge would decrease some drag. Quote:
We do all of our engineering and analysis work in house. We both, Eric and I design parts and I do the analysis work. You might be a data guy, but data can be misleading unless you really know what you are looking at. This is correct and thank you! |
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07-08-2014, 09:49 PM | #152 |
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I watched Eric step on the front of his a couple days ago, and it compressed the suspension instead of deflecting or deforming the bumper. Money well spent in my opinion when it comes with the rods.
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07-08-2014, 10:27 PM | #153 | |
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Im sure there are plenty of ways to make this splitter imcrimentaly more efficient, but how far do you want to take this? Looking at lap time, would the rounded edge give you another second? No. Another 1/10th? No. There are so many other areas where you can shave a 1/10th easier and cheaper. So, it's not worth it to take it to that extreme. Besides, one could always run a router over it after the fact if a person was so inclined. For me, it's not woth it. Ill take 95% efficiency at 75% cost almost any time. |
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07-08-2014, 10:50 PM | #154 | |
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Like so: That would probably be easier to do in CF than it would be in plastic sheet, which would greatly increase the time and cost. It's a novel idea though. I wish I had access to the tools you guys have. I have a ton of probably useless ideas backed by absolutely no formal education or testing that I want to play around with. |
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The Following User Says Thank You to gramicci101 For This Useful Post: | kavanagh (07-08-2014) |
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