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Old March 15th, 2011, 17:00   #68
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Join Date: Sep 2009
Location: Vero Beach, Fl.
Fuel Economy: 45 MPG City with the previous 01M, 5-speed 60+ MPG City. Always searching for ways to make it better!!


The foam is about 2" thick, so when you pass it through the lower valence and start vertically in front of the radiator it gets held in place between the radiator and a horizontal cross member about half way up. I'm not concerned with meltage-this is the same stuff I remade my engine cover sound deadening with. It has been fine for a month or so on top of the engine.

The only bad thing about the radiator block is that any air that would need to be passed through for the A/C condenser would be blocked which could cause higher than normal A/C pressures. Also, you are gambling that the unblocked portion will be able to sufficiently reject enough heat to maintain engine temperatures. The weather here has been cool one day, and hot the next, so that makes it a bit tricky for me. I mainly used it to see if my mileage went up, and to see it the T-stat was working properly. No numbers yet.
2002 VW Jetta TDI 5-speed(completed 01M-5-speed swap at 155K miles) 60+ MPG City.

Now have Nokian Entyre Low RR tires!

Last edited by josh8loop; March 15th, 2011 at 17:02.
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