23 Sep 2008, 12:24 pm
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Cool Cruiser
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Join Date: May 2008
Location: Albuquerque, NM
Posts: 383
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Re: Turbo kick in
Quote:
Originally Posted by vtmdsm27
So, I just had my first OTR trip, about 55 miles each way. I have a few questions for you ol' pros out there.
I have the '08 2.4T. At 65, I stayed at 2500 rpm, 24.9 mpg At 70, I kicked up to 2700 rpm, 22.5 mpg. Big difference for only 200 rpm!
As I understand, it kicks in at 2500 rpm. But surely it doesn't run when I am simply cruising down the flat highway at moderate speeds . . . that seems to defy the physics of turbocharging.
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the turbos always spinning from the moment you start it to shut off, because its running off the cars exhaust.
you can make a small amount of boost under 2500 but it wont make full boost untill over 2500.
you can cruise down the highway at 3k+ and still not use the turbo. it all depends on you foot if you stay on the vac side you'll see better fuel mileage
on our last road trip we avaraged 25mpg and we were cruising between 70-80 we went 240mi and use only 9.5 gal of fuel if you have a gauge and stay on the vac side you can get good mileage.
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Nevin.
03 SRT-4 — 132k mi ported stocker and lots of other stuff
68 Mustang Coupe — project fail!!
PT Less - ex wife took in the divorce 3/2011
05 GT Cruiser H.O. — last dyno 245hp/283tq @ 15psi — OCT 08
3 in intake, Stage 1 PCM, Stage 2 WGA, ported turbo@21psi, 682cc, 160 deg T-stat, Check valve, Ngk 4306 plugs, 10mm spark plug wires, 3in O2, 3in DP, 3in Y-pipe with E-cutout, 2.5 in catback exhaust, upper/lower hardpipes, HKS SSQ bov, block off plate, Energy Suspention MM inserts, NSRT hawk HPS front/rear pads, NSRT Drilled/slotted rotors, NSRT steel braded front lines, Mopar 26mm Swaybar, NSRT energy suspention swaybar bushing, NSRT energy suspention swaybar endlinks, APC Non-turbo strut bar, Black housing headlights, Tinted rear tail lights, Schroth 4 point harness, Perrin catchcan, 3 pod a-piller, boost guage 30/30, oil pressure gauge, volt gauge
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