Author Topic: Idea for a custom spoiler for mk1  (Read 7770 times)

December 06, 2012, 11:33:03 pm

Rising

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Idea for a custom spoiler for mk1
« on: December 06, 2012, 11:33:03 pm »
Okay so maybe I'm still a bit ricey from my subaru roots but I love hatch wings/spoilers. Even on mk1 I just feel like the top of the hatch is empty looking without some kind of little lip or wing or something there. Anyway I do like the zender 3 pc. spoiler like so:



Uploaded with ImageShack.us

But I don't like the fact that it is 3 pc. and i dont' like the wrap around look. Just seems weird to me. Anyway. So I want something that is similar but non wrap around and with a third brake light and maybe just a tad longer and functional. So I spent a little while mocking up something on google sketch-up and it seemed pretty interesting so i thought I would share. I know this isn't really a aesthetic focused forum but I know that the only aesthetic focused forum around would probably flame me half to death just for thinking about doing something different  :-\














I designed it to be effective as an actual wing and spoiler by tilting it slightly upwards and spacing out the wing so air can flow underneath and overtop with a reverse aerofoil design. Possible slight downforce? (probably doesn't matter in a diesel and would likely just net -mpg) But it was just a prototype. The real thing will likely be much more if not completely level.

Also it seems a little too... sharp. I need to blend it in with the lines of the car a bit more. But not bad for a first attempt.

Any feedback?

Ps. i didn't make the rabbit model in sketchup... downloaded that. Just the wing :)



'84 Rabbit Diesel- 1.6D Stock

Reply #1December 07, 2012, 05:47:22 am

theman53

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Re: Idea for a custom spoiler for mk1
« Reply #1 on: December 07, 2012, 05:47:22 am »
Go for it. Many people care a bit too much what others think on the internet. I pretty much don't, some things I will get a bit irritated with, but what I am getting at is this. If you like it do it. It is your car and you are the one that has to like it. There was a guy that had some weird mexican rear tail/brake lights on his MK1 and some flammed him. He got bent out of shape and fired back...what does it matter? If you like it then that is it. It is your style and choice. I personally think it doesn't look good or bad, just there. I like stuff that makes my MK1's *when I had MK1s* look even more rediculous or funny. I had one that I put every piece of chewed bubble gum on the roof. It was a goldish completely rusted out 4 door rabbit and it looked like you parked it under 10,000 pigeons in a barn after about 5 months. I didn't care, but all the drive through people would comment, I would just laugh.
I have an idea that I would rock on mk1. You remember the slotted/vent looking deals on the trans am, camaro, firebird, etc. I think that would look funny on mk1.

On a building note, that wouldn't be too hard to make out of sheet metal or fiberglass.

Reply #2December 07, 2012, 05:55:38 am

8v-of-fury

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Re: Idea for a custom spoiler for mk1
« Reply #2 on: December 07, 2012, 05:55:38 am »
There is a user on here that did a very similar looking rear wing setup on a mk2 Jetta. It is much bigger and actually nets him a few mpg per tank.. So yes go for it. Keep on researching the design aspects of what you want to go on behimd the car in terms of air flow, look good and knock up a few mpg?? Nice.

Reply #3December 07, 2012, 06:25:07 am

theman53

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Re: Idea for a custom spoiler for mk1
« Reply #3 on: December 07, 2012, 06:25:07 am »


This is what I am talking about. I think MK1 would be fabulous with it on. Many laughs

Reply #4December 07, 2012, 06:48:44 am

TylerDurden

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Re: Idea for a custom spoiler for mk1
« Reply #4 on: December 07, 2012, 06:48:44 am »
Sweet, lol.

There are folks on ecomodder playing with "FLow Illustrator". Might be fun to try.  http://ecomodder.com/forum/showthread.php/flow-illustrator-stand-alone-version-windows-only-19661-6.html

Reply #5December 07, 2012, 07:13:15 am

Rising

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« Reply #5 on: December 07, 2012, 07:13:15 am »
Woot window louvers!! Haha. I used to think those were the coolest things ever when I was a kid. You are right though!  I should pick up a set for the rabbit lol.

Theman I definitely feel you about people getting too uppity about liking their car. And honestly that is part of the reason I don't post up much or basically EVER post pictures of my car because I don't really care lol. I try to chime in and help when I can but I'm not really into "guy guys guys is it okay to put these rims on?!!"

Haha. But I also feel you about the more ridiculous thing. I think these things are quirky little monsters. They need to have a little quirk to them or they just aren't rabbits.

But more so I'm looking for an extra set of eyes on some of the angles and such to try and do it better ya know? And it was my first time doing anything 3d and I had to show someone hahaha I was planning on just mocking with foam or card board but this seemed cooler ha

Tyler: that looks awesome! I may have to try that out!

8v: I'd be really interested to see that at some point hopefully they will post up. I know the idea of a kammback is very popular in ecomodding and can be quite effective at reducing drag coefficient. I also know that mk1 and hatchbacks in general create a large swirling vacuum behind them which adds drag and by smoothing the air over a wing and extending it away from the rear you can reduce that effect although I'm not sure how much.

Sent from my ThunderBolt using Tapatalk 2
'84 Rabbit Diesel- 1.6D Stock

Reply #6December 07, 2012, 10:06:39 pm

745 turbogreasel

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Re: Idea for a custom spoiler for mk1
« Reply #6 on: December 07, 2012, 10:06:39 pm »
I think you wold see  larger real world gains flipping the wing, and filling the low pressure area at the back of the car

Reply #7December 08, 2012, 07:14:34 am

miguel.760ti

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Re: Idea for a custom spoiler for mk1
« Reply #7 on: December 08, 2012, 07:14:34 am »
That looks really clean. Not too big and ricey but it's big enough to where it would be semi-functional
81 Jetta - Soon to be 1.9 powered
88 Volvo 760T - Daily driver
89 Volvo 240 - Soon to be turbo

Reply #8December 08, 2012, 10:45:33 am

R.O.R-2.0

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Re: Idea for a custom spoiler for mk1
« Reply #8 on: December 08, 2012, 10:45:33 am »
I think you wold see  larger real world gains flipping the wing, and filling the low pressure area at the back of the car


holy CRAP...

thats a nice 'burb...
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #9December 08, 2012, 01:12:53 pm

745 turbogreasel

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Re: Idea for a custom spoiler for mk1
« Reply #9 on: December 08, 2012, 01:12:53 pm »
Wish mine were that nice,  it was the first I found with that deflector style.
I heard 1.5-2 MPG gain.
http://bringatrailer.com/2011/02/01/nicest-we-have-seen-1983-gmc-suburban-4x4/

Reply #10December 08, 2012, 08:39:05 pm

scrounger

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Re: Idea for a custom spoiler for mk1
« Reply #10 on: December 08, 2012, 08:39:05 pm »
Hi, Tipping up will cause a bigger wake behind your car. Use more gas, less top end that sort of thing. The louvers are cool.


Here is mine.



I am not totally happy with the aesthetics of the deck lid parkbench. I did some tuft testing and can get air flowing over the top of the tail fairing.

Part of my design is to keep access to the trunk without hassle.
M2 Jetta TD.  Northern Missouri

Reply #11December 08, 2012, 09:44:01 pm

ORCoaster

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Re: Idea for a custom spoiler for mk1
« Reply #11 on: December 08, 2012, 09:44:01 pm »
Honda-itis.  is that for real? 

Reply #12December 08, 2012, 11:18:39 pm

mystery3

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Re: Idea for a custom spoiler for mk1
« Reply #12 on: December 08, 2012, 11:18:39 pm »
I take it you've never looked at eco-modder Coaster?

Reply #13December 09, 2012, 06:26:46 am

scrounger

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Re: Idea for a custom spoiler for mk1
« Reply #13 on: December 09, 2012, 06:26:46 am »
Ricer, ah yeah .... It's the 155/80 snow tires running 50psi  and stock exhaust that give it away. :)
A previous owner did put koni struts and springs in the car.

Nothing wrong with good mileage. Less wear and tear. Less air drag.
M2 Jetta TD.  Northern Missouri

Reply #14December 09, 2012, 06:49:51 am

TylerDurden

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Re: Idea for a custom spoiler for mk1
« Reply #14 on: December 09, 2012, 06:49:51 am »
The shell looks like it's in good shape. ::envy::

55mpg is pretty damn good, my 86 has gotten close... maybe this year, after a swap.

If you have a strong interest in aerodynamics, openFOAM is a free CFD linux program. Not simple or easy.

http://www.openfoam.com/


Affordable CAD (that plays well with others) http://www.alibre.com/
I'm an end-user, not a company shill.