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02-15-2011, 12:14 AM | #1 |
Scooby Specialist
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Splitter creation thread. Help me decide what design to produce!
Not many of you know me, but I am slightly better known on the GC world because of my former cars. I am about 9 months into the turbo GD world and loving every second of it! My background includes an associate’s degree in plastics and polymer engineering (currently finishing for my bachelor's). I love the idea of plastics taking over the world, and I want to start making more lightweight, functional parts for my car!
I came across a problem when I swapped a vf39 into my 06 wrx tr... The hood splitter is too damn small for my intercooler! Anyways... I was looking at new options for hood splitters since I am now not running one. I looked at all of the options for hood splitters that I had, but not one of them are affordable or even worth it! Yes... they all function perfectly, but do they cool your turbo too? NOPE! (the "vents" in the side just throw air randomly around near the turbo). I developed a splitter that gets air to the front and back of the intercooler (like the others) AND I included a way to cool the turbo as well! I can make them for less than the other guys have them too! I thought about just scrapping the whole Idea I had because I figured that no one really cares about the splitter anyways... But I want to make them out of carbon fiber and regular abs plastic (for options). I also want to develop other parts too! Since I am too far gone into this project, I want to know what you guys think about my Idea! If there is enough interest, I will start making the mold and thermoforming them! If not, I’ll just make one for me and a few friends and call it a day. Input please! Thanks, Andrew Chimney idea (would be an add on) Simple design (could still utilize the chimney) and be slightly cheaper to make The most simple design (could sell even cheaper) This one has the biggest possible opening I was able to make. Here is my (basically final) design: It’s a 3 piece design Main splitter, rib insert for front intercooler air, and bottom seal that will have flexible rubber (much like the oem sti one). Together view: Exploded View: Last edited by AWSnare; 02-21-2011 at 10:32 AM. |
02-15-2011, 12:33 AM | #2 |
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Pics of what you came up with would be sweet. Not sure if it would work for my 2011 or not but if so i may be interested.
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02-15-2011, 01:49 AM | #3 |
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As requested. I have a cardboard prototype that fits perfectly (just like the design pictured). It is a 3 piece part; the center rib and the turbo air scoop are going to be made with a separate mold and will then be attached after fabricated.
The 06-07 market is what I know they will 100% fit right now. In order to make sure the other years like 02-05 would fit, I would need a tester (but I have friends with those years). 08-12 I believe would have to be a completely different design. Last edited by AWSnare; 02-15-2011 at 02:35 AM. |
02-15-2011, 06:19 AM | #4 |
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Which aftermarket TMIC did you design this around because they are all a bit different.
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02-15-2011, 07:01 AM | #5 |
Big Ron
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Cooling a turbo is NOT needed. The OEM units give little more than a nod to this premise, I suspect mainly as a "vent" for periods of idling. In any event what you are thinking about has been done before through a chimney design and worked, but you have to account for 90,000 different TMICs and fitment issues a go-go. I have had my turbo wrapped since day zero and have had zero turbo issues. As well, I think thermodynamically speaking, keeping heat IN the turbo is better all around due to reduced heat soak and the noble gas law.
So if you think this idea is fun and easy, knock yourself out. You are not blazing a new trail though and you are in for a lot of work as in order for a splitter to be effective, it must SEAL to the intercooler. No seal = ghetto-tastic. |
02-15-2011, 08:59 AM | #6 |
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^^^ I do agree on the turbo cooling not being necessary, but I would like to know what TMIC this was designed around. I have a Spearco and the stock STi splitter is a no go. Process West offered a splitter with their TMIC but the price is ridiculous. Perhaps I should just fab my own.
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02-15-2011, 10:49 AM | #7 | ||
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Quote:
NOW the vent. Funny you mention the chimney at idle... I had a friend tell me that this is how I should interprate the vent for the turbo and I didnt buy it! If you are saying that it is tested and it works, I will make a chimney vent work with a spearco tmic since it is the largest one on the market (correct me if im wrong). This is why I also am making the splitter in pieces. The chimney could be added on if desired and if applicable. Quote:
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02-15-2011, 11:27 AM | #8 |
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ABS plastic? Doesn't that have a melting temperature around 200 F? You know the hot side of the turbo gets over 1000 F right? I could see it making mince meat of this splitter (at least the "turbo vent" part of it) as soon as you hit a stop light and the air flow through the plastic stops.
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02-15-2011, 11:30 AM | #9 | |
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Obviously I will be testing this in a dd setting and a track setting before anyone outside friends gets this. |
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02-15-2011, 11:33 AM | #10 |
Big Ron
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Make sure you endeavor to make the seal "accordian-like" as every TMIC fits slightly off in width, length, and height.
Spearco is the biggest in CFM, but not sure if it is size wise. If I were doing it, I would just make the chimney part some holes like the OEM one as that can throw your fitment off and I'd rather invest fitment hours on the part that REALLY counts, the intercooler area part. |
02-15-2011, 11:43 AM | #11 | |
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02-15-2011, 03:06 PM | #12 | ||||||||
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I merged my two threads together |
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02-15-2011, 05:10 PM | #13 |
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I think this is a pretty good idea, going to school for engineering myself, my knowledge of thermodynamics isn't as advanced yet but stuff like this is always what I've thought about, where in tristate are you? I'd be willing to loan my car for a little test fitting for the 08+ models, let me know and good luck
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02-15-2011, 05:41 PM | #14 |
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I'm just wondering, the open portion that's the chimney right? I may have another idea for it that you might like
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02-15-2011, 09:23 PM | #15 | ||
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Quote:
I have 4 other designs that I will post up in a bit. |
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02-15-2011, 10:09 PM | #16 |
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A shield that goes UNDER the TMIC would be the cats meow... bolted to the IC bracket and extended to be used as an extra turbo shield too as a chimney...
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02-15-2011, 10:20 PM | #17 |
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02-15-2011, 10:23 PM | #18 |
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would be interested in getting one for a perrin tmic
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02-15-2011, 11:47 PM | #19 | |
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Quote:
i've been considering the feasability of this for a while, something that directs the spent air down over the tranny housing and keeps rising heat from the engine off the intercooler. wouldn't have to even seal against the ic, just fit. a nice ceramic spray and there would be nothing to heatsoak the ic. now if you sealed it and added fans..... plus, all the more reason to use that rear diffuser right? evac some more air from under the car? |
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02-20-2011, 04:27 AM | #20 |
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and vents to the bottom of the car, using the forward movement of the car to create a vacuum effect, increasing the on-coming airflow across the tmic.
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02-20-2011, 06:16 AM | #21 |
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02-15-2011, 11:40 PM | #22 |
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I think because of all of the different intercoolers out there, I may end up just making a seal to fit the biggest intercooler I can get my hands on. Biggest I have seen (core size) is 20x7.5 so ill make an accordian style so it would fit
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02-16-2011, 12:36 AM | #23 |
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Well, I have 5 options of splitters I'm thinking of making. I'm going to use polycarbonate and eventually have carbon fiber ones.
I will also most likely be making 06-07 brake ducts (plastic and carbon) Saggy butt spacers (1/4 and 3/8) Rear bumper exhaust shields in carbon Carbon canards Din gauge mounts CD player cover plates (for race applications) Radiator shrouds (carbon or plastic (maybe even colored)) Alt/ps/ac cover (carbon or plastic or even colored plastic) I'm still in the development stage for all of this... but I really want to start having product for sale around summer time Ill have to work on a vendor account obviously, but let me know what you guys would be interested in! My aim is for quality parts at an affordable price! |
02-18-2011, 02:04 AM | #24 |
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i was thinking a flap in the wall where the chimney and venting side meet with a gasket around it to seal it, when your driving the force of the air coming in would push open the vent allowing cool air to the turbo when your slowing down or idleing the flap will be closed and the air can escape through the chimney as normal
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02-18-2011, 08:34 AM | #25 | |
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