Quote:
Originally Posted by DIY_GUY
I like where/how you mounted the heater plug, very clean. I also like the extra pitch on the grille block. I do see one thing I need to ask about.The intercooler grille block? Does the aero advantage offset the the IA temp rise? What are you getting for a IA temp? and at what ambient temp? Sorry for all the questions
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No problem, I am always happy to see another diesel modder on the forum. I would love to totally Basjoos a TDI to see what they can really do but I am too vain about my VeeDub.
The intercooler grill block is only for extreme cold conditions, i.e. a few sub zero mornings per year and only for the first 40 miles. I do it to speed engine warmup and get more heat into the cabin. Mostly it is left open and I am usually about 10º above ambient unless I am climbing a long pass. Intake temps spike with prolonged boost (up to 180º max in summer IIRC).
I use the black pipe insulation on the upper grill year round. The "winter grill block" is used mostly to keep rock chips off the paint in sloppy weather. They use a lot of grit on the roads in winter here. If it helps with aero, it is so minimal as to be almost impossible to measure a difference in mpg.