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[QUOTE=Arragonis;227360]TDIs have VNT turbos.
My thoughts have led me to conclude this won't work. The inlet side is cancelled out by the turbo - it boosts to the same pressure as long as enough air is coming in. If you improve it then it makes no difference.
Nope - this engine has all the air it needs. I still maintain if Julian removed everything else and kept the remap the power gains would still remain.
I'm willing to bet a bottle of wine on it.[/QUOTE
Arragonis, are you suggesting the improved mpg is just the result of the flash too? I have been studying up on diesels and everything suggests that turbo-diesels do best with free flowing intake and exhaust. This is at odds with Julian's findings though. I hacked off my muffler a few years ago and replaced it with a 2 1/2" straight pipe. I cannot say that it changed the power at all but it certainly didn't hurt my highway mpg.
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60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun 
https://ecomodder.com/forum/showthre...tml#post621801
Quote:
Originally Posted by freebeard
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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