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Originally Posted by FTA
Two shifts and a lot of wheelspin are dramatic but not fast. Refining launch technique for less wheelspin, and keeping the go-pedal flat to maintain boost between shifts, Jared finally knocks the time down to 7.5, but no less.
Then, the epiphany: We have 240 lb-ft of torque — why don't we launch in second gear? It'll save the time normally wasted shifting from first to second, and it might even waste less time smoking the tires. Success! First try and the time drops to 7.09 seconds.
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Told ya launching in 2nd was faster
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Turns out we didn't order the larger nozzles (Bosio PP520) used on the 140-hp dyno charts we'd spotted on the Internet, but less aggressive ones (Bosio PP357) that Malone recommends for people trying to do crazy things like squeeze 70 mpg out of TDI-powered Rabbits.
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That's too bad you didn't get the PP520. With proper tuning you would have gotten at least the same fuel economy as the PP357. I personally run PP502 in my car, bigger than the PP520 and can still get as good fuel economy as with stock nozzles, with a kind of ghetto diy tuning no one does. Since you have a scangauge, can you tell us what the timing with the tune is at 2000 rpm when cruising down the highway.
If it's below 5 BTDC, a quick fix for the fuel economy run would be to just cut the wire for the IAT sensor and put a 18k ohms resistor in there, look up the IAT on the scangauge, it'll read around -15 F with the resistor in place. That'll give tou an additional 2 degrees of advance at part load only, good for you FE run and won't change a thing to your pedal to the metal 7 secs goal.