09-06-2014, 06:28 PM
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#11 (permalink)
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Furry Furfag
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Quote:
Originally Posted by RedDevil
One way to limit the effect of misalignment on FE is to raise tire pressure, to the point that if raising tire pressure gets you more than 10% efficiency gain over OEM tire pressure you can bet your life your alignment is out.
I guess you already did raise the pressure, but there's no harm in checking  |
Actually ty for reminding me, the pressure in those tires hasn't been checked in weeks.
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09-06-2014, 06:48 PM
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#12 (permalink)
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Furry Furfag
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Aha! All tires were at 38, all at 47 now (44 is max sidewall). It's hot right now so when it gets cold they should be right around 44.
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09-07-2014, 12:40 PM
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#13 (permalink)
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Tinkerer
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Very cool  that's with ac running too, I presume based on 100f temp? Is the ac separately running with engine auto shutdown at stops w the Insight? |
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09-07-2014, 02:28 PM
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#14 (permalink)
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Master EcoModder
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Get the alignment sooner rather than later.....
chewed up my front tires on the Q45.
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09-07-2014, 07:43 PM
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#15 (permalink)
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60 MPG In-City? That's an achievement. Do you have engine heaters?
Quote:
Originally Posted by RedDevil
One way to limit the effect of misalignment on FE is to raise tire pressure, to the point that if raising tire pressure gets you more than 10% efficiency gain over OEM tire pressure you can bet your life your alignment is out.
I guess you already did raise the pressure, but there's no harm in checking |
How does this work? I'm not sure I follow the idea yet.
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09-07-2014, 08:34 PM
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#16 (permalink)
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You can set the toe with a tape measure. At least that would get you close.
regards
mech
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09-08-2014, 01:06 AM
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#17 (permalink)
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Furry Furfag
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Quote:
Originally Posted by 101Volts
60 MPG In-City? That's an achievement. Do you have engine heaters?
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Nope.
Quote:
Originally Posted by kafer65
Very cool that's with ac running too, I presume based on 100f temp? Is the ac separately running with engine auto shutdown at stops w the Insight? |
Nope, no A/C. The car has A/C but it's out of freeon. And the way the insight works, if you have the A/C set to "Econ mode" it will turn off the engine (and the ac with it) at stop lights when it enabled auto stop.
Quote:
Originally Posted by mcrews
Get the alignment sooner rather than later.....
chewed up my front tires on the Q45.
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Yes, I will be doing it this coming Friday for sure.
Quote:
Originally Posted by Old Mechanic
You can set the toe with a tape measure. At least that would get you close.
regards
mech
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How?
Also guys, I learned my UG is reading 5mpg lower then what I'm actually getting. So I actually got 66 I suppose instead of 61 on that trip.
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09-08-2014, 04:52 AM
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#18 (permalink)
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Master EcoWalker
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Quote:
Originally Posted by 101Volts
Quote:
Originally Posted by RedDevil
One way to limit the effect of misalignment on FE is to raise tire pressure, to the point that if raising tire pressure gets you more than 10% efficiency gain over OEM tire pressure you can bet your life your alignment is out.
I guess you already did raise the pressure, but there's no harm in checking |
How does this work? I'm not sure I follow the idea yet. |
By raising the pressure you lift the tire a bit, making the footprint smaller.
Specifically the front and rear part of it, which are most out of line.
It can be the difference between staying under the limit of tire profile flex and rubbing the tire.
The same applies for parking without power steering.
If you have no power steering then it is hard to change direction at very low speed.
The electric PS on my wife's car failed twice, she couldn't park the car anymore.
I raised the pressure from 30 to 40 PSI; that halved the effort needed.
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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.
Last edited by RedDevil; 09-08-2014 at 04:58 AM..
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09-08-2014, 05:31 AM
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#19 (permalink)
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Furry Furfag
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Quote:
Originally Posted by RedDevil
By raising the pressure you lift the tire a bit, making the footprint smaller.
Specifically the front and rear part of it, which are most out of line.
It can be the difference between staying under the limit of tire profile flex and rubbing the tire.
The same applies for parking without power steering.
If you have no power steering then it is hard to change direction at very low speed.
The electric PS on my wife's car failed twice, she couldn't park the car anymore.
I raised the pressure from 30 to 40 PSI; that halved the effort needed.
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Yea I'll be honest, upping pressure from 44 to 52 did help a little but, it seems to pull less. I'm getting an alignment done this coming Friday anyway so it's all good.
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09-08-2014, 09:19 AM
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#20 (permalink)
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Master EcoModder
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Measure the tread width on the front and back of both front tires (which groove makes not difference, just the same one). The 1st gen Insight toe is very close to 0 difference. It has to be done with the car on the ground, preferrably after having rolled at least 50 feet.
regards
mech
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