Quote:
Originally Posted by cbrer
... So I'm assembling the following parts to try and get better fuel economy, and drivability. Along with raising up tire pressure to ~50 PSI. Electric fan and controller. ... My question is how much MPG can I reasonably expect to gain with these changes?
|
Welcome.
It depends on what the tire pressure was. 50 is already quite high; the harder the tires get, the harder the suspension will have to work on a rough road, so what you gain in tire rolling resistance might get wasted in the shock absorbers.
Going from 28 PSI to 50 will help a lot.
From 45 to 50 may not help mpg at all if the road is not smooth.
The fan will help a bit, but it will take some time to gain back the cost of the swap. Given the mileage it may just not be worth it.
A good service may help a lot, get the wheels aligned properly etc.
Most of all: Steering wheel nut tightening. See the 100+ hypermiling tips.
Keep a fuel log. Get a tool for instant MPG readout. As you've been lurking, you will know this already of course.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.