02-19-2018, 12:16 PM
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#1 (permalink)
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Batman Junior
Join Date: Nov 2007
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You know it's time to turn in your EcoModder membership when...
This weekend (after driving ~200 km), I noticed the lip of this wheel disc looked like it was curling a bit, presumably because of the sidewall bulge at the contact patch. (The disc diameter is wider than the rim diameter.)
Thought process:
"But why is it just the one disc? Mysterious."
"Better check the air pressure..."
"Rats! My pressure gauge is broken! The slider bit with the numbers on it won't pop out."
Checks another tire...
"Oops!"
Looks like I'd been driving around on a completely flat tire for who knows how long. (Admits the guy who poo-poos the necessity, cost & complexity of TPMS.)
CRAP! I will see myself out and turn in my membership at the door.
(In my defense: the car still seemed to roll OK. Also, the tire didn't look obviously flat. Maybe these tires have stiffer than usual sidewalls.)
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02-19-2018, 01:13 PM
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#2 (permalink)
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Master EcoModder
Join Date: Jan 2014
Location: South Carolina
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Resignation denied!
If your "structural" moon disc holds your tire together enough where you can't even tell it's flat I think you're on to something man, that's a very Ecomodder-worthy mod right there
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02-19-2018, 01:27 PM
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#3 (permalink)
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Master EcoModder
Join Date: Nov 2013
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But.....did it help your mileage?
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02-19-2018, 02:54 PM
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#4 (permalink)
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aero guerrilla
Join Date: Oct 2008
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At some point he was rolling solely on the edges of the discs.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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02-19-2018, 03:25 PM
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#5 (permalink)
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Batman Junior
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^HA!
Quote:
Originally Posted by Angel And The Wolf
But.....did it help your mileage?
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Apparently it got worse until the discs made contact with the road, and then rebounded to best-ever numbers. 
Time to cut the valve stems off all four! |
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02-19-2018, 10:02 PM
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#6 (permalink)
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Not Doug
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One tire on my Accord has a slow leak. Whenever I had checked before they had not lost any air, so I became complacent. When I checked I was down to 15 PSI!
That was some good exercise with the bike pump...
I keep thinking that I need to have a tire place repair it for free, but I would rather keep pumping it manually than ask them to leave the other tires alone, have them let air out anyway, and pump them up in the parking lot.
Oh wait. I am supposed to drive 250 miles each way to a Costco to have them check the nitrogen in my tires.
Then pump them up in the parking lot.
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02-19-2018, 10:55 PM
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#7 (permalink)
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Master EcoModder
Join Date: Aug 2010
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Quote:
Originally Posted by MetroMPG
^HA!
Apparently it got worse until the discs made contact with the road, and then rebounded to best-ever numbers.
Time to cut the valve stems off all four! |
I needed a chuckle this morning! |
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02-19-2018, 11:38 PM
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#8 (permalink)
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Corporate imperialist
Join Date: Jul 2011
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Get a "tire slime" brand dial gauge.
I have bought 2 of them and both were within 1 psi of a calibrated DoD master gauge.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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02-19-2018, 11:53 PM
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#9 (permalink)
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Master EcoModder
Join Date: Nov 2013
Location: Texas
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Quote:
Originally Posted by MetroMPG
^HA!
Apparently it got worse until the discs made contact with the road, and then rebounded to best-ever numbers.
Time to cut the valve stems off all four! |
YEAH! and those discs are cheaper than tires! |
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02-20-2018, 06:30 AM
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#10 (permalink)
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Rat Racer
Join Date: May 2011
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Airless tire = DIY vehicle weight gague.
Wheel disc = Overspeed indicator
You've lightened the car enough that you pass- the airless tire on its own was enough to support the car. The overspeed indicator, however, shows you're letting your speeds get up a bit high- you were driving fast enough that the bumps were enough to deform the disc.
Good work on weight reduction, but stop driving like such a maniac.
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Quote:
Originally Posted by sheepdog44
Transmission type Efficiency
Manual neutral engine off.100% @∞MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%
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