ridiculous (and awesome) gas mileage?
- Thread starter VIPMSP
- Start date
yes less stored rotational energy due to less weight it takes more power/energy from the engine to mantain speed because of it. although you get that nice peppy rev also because it takes less power to accelerate that mass due to the lowered weight
z
mind you i kinda went to the extreme end of the light weight flywheel option. fidanza 7.5lb from stock 23-25lb if i remember right
god its been over 3 yrs id say 1-2ish but when your a cheap ass at the time thats alot.
z
once again personal experience yours may vary what are you looking at getting and doing
As was stated, the car runs super lean with zero throttle input, and my wideband will attest to that as it goes off the chart when I engine brake.
You would see a drop in highway mileage because of the rotational mass discussed previously, but should see a slight increase in city mileage since you don't need to expend as much energy to get the car moving.
Potatoswatter
Member
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- Protege MP3 stock
The flywheel should only save gas from a physics perspective. You put the energy in when revving up and it goes down the drain when the engine spins down. Shouldn't do anything on the highway. It doesn't drain energy just because it has mass.
Different story if you can't run comfortably at lower RPMs any more. But just looking at energy lighter = better.
Different story if you can't run comfortably at lower RPMs any more. But just looking at energy lighter = better.
It's not that it drains energy, it's that it doesn't conserve it. If your car did 99% highway for it's entire life, I'd want the flywheel to be as heavy as possible, just not so heavy that your engine couldn't turn it when you are accelerating... The moment of inertia is what keeps the flywheel spinning, and the more mass you have, the more inertia there is.
okay well i think there's a gas station up here that sells 89 for the same price of everyone else's 87.. i think thats why my rents always go there.. but does anybody else have some insight on that is a very large difference of mpgs when using reg. and not premium?
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- Blue MP3/06 MPV
The MP3 ECU is tuned for advanced ignition timing. This requires the use of a higher octane fuel (doesn't ignite as easily). If you use a lower octane fuel, there is more potential for pre-detonation (knock). The computer in our cars picks this up very easily and quickly and will retard the timing so that the combustion chamber can cool down. In the process, you lose power and need to use more fuel to perform the same work from the engine.
Also, you'll want to check all of your tune-up stuff. Air filter, oil, plugs/wires, tire press., and alignment. Alignment is one that people often don't think about until the tire tread is gone. If your alignment is off, your essentially dragging your tire sideways while you go down the road.
Also, you'll want to check all of your tune-up stuff. Air filter, oil, plugs/wires, tire press., and alignment. Alignment is one that people often don't think about until the tire tread is gone. If your alignment is off, your essentially dragging your tire sideways while you go down the road.
Potatoswatter
Member
- :
- Protege MP3 stock
After comparing a tank of premium against a tank of regular, I'm a fan of regular now. Conservatively driving, there's no advantage to premium... seems perfectly OK to rely on the anti-knock sensor. I think your argument holds for aggressive driving tho. Flooring it results in the gas gauge moving faster than the speedometer, using regular
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- Blue MP3/06 MPV
Why is honda making such a big deal about the new Fit getting 33 MPG on the hwy? I just recorded 34.5 mpg on a 188 mile trip. All interstate driving, about half of it at 80 mph average (we were in a hurry to get there) and the other half at about 65-70 mph. This was also all done at an altitude of 5200-7800 feet above sea level! I couldn't imagine what I might get at sea level on flat roads.
My car is 8 years old, handles like a dream, is a blast to drive and looks great. Not to mention I can fit 4 adults comfortably. Where is the advancement in technology?
My car is 8 years old, handles like a dream, is a blast to drive and looks great. Not to mention I can fit 4 adults comfortably. Where is the advancement in technology?
Word to that.
The thing is that they killed off the RSX thinking it competed with the Si and the current Si doesn't even come with HID?! This is not exactly related but I just wanted to vent.
What are the rims like, are they really heavy? If you just run around town, stop and go, I'm not surprised. I do a fair bit of interstate, highway, as well as city, of course.
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- Blue MP3/06 MPV
That sounds about right. Lots of stop and go and idiling will kill your MPG. Remember, 0 MPH=0 MPG. Mine was strictly interstate driving. Maybe 15 miles of my 190 mile trip was city. I've seen gas mileage in my car hit 24 once or twice, but that's usually in the winter and with lots of short trips. So your 23-24 sounds about right. I average 28-30 year round with my typical driving.
I personally don't go over 70 on my trip. I imagine at 85 the RPM would be crazy.
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- Blue MP3/06 MPV
Yeah, they're pretty high. I tried figuring out the ratio because another MP3 owner near me has a speedo that's not working. At 75 mph, our cars are at 3500 rpm. It goes up approx 400 rpm for every 10 mph.
