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January 13th, 2010, 18:43
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#16
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Veteran Member
Join Date: Jan 2008
Location: Western Connecticut
Fuel Economy: 5.2L/100km The whole world should be metric
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Still looking great, shizzler.
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Link: 2003 Jetta GLS TDI - Platinum Gray;
Link: Current Modifications - Post Nr. 244, but now with RC5, 11-mm IP, PP764 nozzles, PD150 TIP, R32 MAF housing, and Koni Sport Springs
Ich liebe meinen FOW-VAY Tay-Day-Eeh, weil er sehr schnell fährt.
 
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January 14th, 2010, 10:08
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#17
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Veteran Member
Join Date: Jun 2005
Location: Ann Arbor MI
Fuel Economy: 50+ always (56 best)
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Thanks man. I enjoy checking in on your thread every couple days myself.
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'03 ALH Jetta: PP520s, Q-loader, Whitbread 2.5" DP, Mufflerectomy, PD150 t.i.p. + 3" intake, IDparts upper IC pipe, PD lift pump, Sachs VR6/G60, 0.658 5th Gear, Zerostart, Panzer Skidplate, Dieselgeek short shifter, Koni Coilovers, Aero-mods.
Burning zero imported petroleum from May - October (pure bio, baby)
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January 15th, 2010, 12:26
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#18
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Veteran Member
Join Date: Jan 2008
Location: Western Connecticut
Fuel Economy: 5.2L/100km The whole world should be metric
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Quote:
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Originally Posted by shizzler
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What are those small things on the top of your rear window, and what are their function?
__________________
Link: 2003 Jetta GLS TDI - Platinum Gray;
Link: Current Modifications - Post Nr. 244, but now with RC5, 11-mm IP, PP764 nozzles, PD150 TIP, R32 MAF housing, and Koni Sport Springs
Ich liebe meinen FOW-VAY Tay-Day-Eeh, weil er sehr schnell fährt.
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January 17th, 2010, 14:07
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#19
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Veteran Member
Join Date: Jun 2005
Location: Ann Arbor MI
Fuel Economy: 50+ always (56 best)
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They're "vortex generators".
http://www.vortekz.com/
The idea is they trip the airflow boundary layer, which promotes better ability for the air to conform to directional changes (such as the angle from the roof to the rear glass). Getting the airflow to stay attached to this transition creates a smaller rear wake, which equates to less vacuum drag behind the car = better fuel economy.
The problem is that they present their own local airflow drag at the same time that they are helping to minimize the total rear wake. So I was more or less unable to really prove their effectiveness. But they certainly didn't hurt.
I did some nerd testing and reporting over on ecomodder when I put them on:
http://ecomodder.com/forum/showthrea...rear-8839.html
__________________
'03 ALH Jetta: PP520s, Q-loader, Whitbread 2.5" DP, Mufflerectomy, PD150 t.i.p. + 3" intake, IDparts upper IC pipe, PD lift pump, Sachs VR6/G60, 0.658 5th Gear, Zerostart, Panzer Skidplate, Dieselgeek short shifter, Koni Coilovers, Aero-mods.
Burning zero imported petroleum from May - October (pure bio, baby)
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April 17th, 2010, 06:57
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#20
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Veteran Member
Join Date: Jun 2005
Location: Ann Arbor MI
Fuel Economy: 50+ always (56 best)
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Whoo-hoo! Finally back to summer mode. After lowering the coils and swapping wheels/tires, I had to get over to the car wash asap.
Then I ran out of daylight during my wax job
It was over 80 degrees on Thursday! In Michigan, in April, that's a big deal. My coworkers thought I was nuts for taking some photos out back.
__________________
'03 ALH Jetta: PP520s, Q-loader, Whitbread 2.5" DP, Mufflerectomy, PD150 t.i.p. + 3" intake, IDparts upper IC pipe, PD lift pump, Sachs VR6/G60, 0.658 5th Gear, Zerostart, Panzer Skidplate, Dieselgeek short shifter, Koni Coilovers, Aero-mods.
Burning zero imported petroleum from May - October (pure bio, baby)
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