View Single Post
Old 11-12-2012, 11:32 PM   #56 (permalink)
Firestarter
EcoModding Lurker
 
Join Date: Oct 2012
Location: SoCal
Posts: 19
Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by turbobob_01 View Post
I own a 2011 Cruze 1.4L turbo with auto trans. and have been playing with it a little bit, mostly attempting less boost by the addition of counter springs and hoping for more MPG. So far I have not seen any type of improvement over the stock setup. I baby the car and even pull it into neutral when coasting to avoid the factory normal downshifting of gears. I think I will try some simple aero mods instead of messing with the turbo anymore. What it is is what it is. I get around 36.5mpg. These are 'real' numbers. My drive is 50 miles one way and back everyday with minimal stop signs. No high speed driving, 60mph. top speed.
I would suggest not altering your boost management system.

And coasting in neutral usually isn't good for automatics.

Turbos don't suck down energy like more rpm does generally. Its like engine displacement on demand. And with a 1.4l you're going to want that baby snail pumping air... that's what it was designed for. To cruise with a 1.4l and accelerate with like a 2.5l.

But messing with a turbos hardware and not tuning for it can cause engine failure.
__________________
2013 WRX pbp sedan
2009 GSX-R600
1998 Ram 2500 CTD 2wd 5spd (sold)
2009 GSX-R1000 (stolen)
2010 Tacoma 4x4 6spd (sold)
2006 WRX/STi obp sedan (sold)
2009 GSX-R1000 (crashed)
  Reply With Quote