Rear brakes, preparing for the worst
Thread Starter
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Winching
Joined: Nov 2010
Posts: 624
Likes: 3
From: Sugar City, ID
Spike, I think that's the smartest way to do it. I still will try to measure the rotors and see if they are within spec, I think I can get a cheap vernier caliper at Harbor Freight for like $5 to $10. Glad to hear the brake pads work well, I was a bit hesitant but I do like Auto Zone.
Thread Starter
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Winching
Joined: Nov 2010
Posts: 624
Likes: 3
From: Sugar City, ID
Well it's a bit off-topic, but since you ask:
The Volo chip most likely does one of two things, or both: it could make the engine run lean (lean = less fuel per unit oxygen = oxidizing combustion = hotter). So that would be a bad thing, although most engines can tolerate a slightly leaner than stoichiometric mixture, which is 14.7 parts are to 1 part fuel. As evidence that this is bad, engines are often designed so that if they get invalid inputs from one or more sensors, they default to a slightly rich mixture to avoid overheating the engine (rich = more fule per unit oxygen = carburizing combustion = cooler). The noticeable result (beyond the check engine light which may or may not be illuminated) is decreased fuel economy. Alternatively, the chip could simply decrease the amount of fuel used when the engine is in open loop ("open loop" is the operating condition of an engine that is cold, it runs on preset values rather than using feedback from sensors, hence "open loop". A closed loop system takes feedback from the sensors, and uses that feedback to calculated fuel inputs). Since the engine is not taking feedback from the sensors, manufacturers default again to a rich condition. If the sensors do not detect when the engine gets warm, it is preferable for it to continue running rich in closed loop and thereby not overheat. Hence another common diagnostic item when poor fuel economy is reported is to determine if the engine ever comes out of open loop.
Really, I think you should send me a PM if you want to learn more about HP or fuel economy. I typed a bunch more than this but somehow it got deleted, and I don't want to type it again just now, haha.
The Volo chip most likely does one of two things, or both: it could make the engine run lean (lean = less fuel per unit oxygen = oxidizing combustion = hotter). So that would be a bad thing, although most engines can tolerate a slightly leaner than stoichiometric mixture, which is 14.7 parts are to 1 part fuel. As evidence that this is bad, engines are often designed so that if they get invalid inputs from one or more sensors, they default to a slightly rich mixture to avoid overheating the engine (rich = more fule per unit oxygen = carburizing combustion = cooler). The noticeable result (beyond the check engine light which may or may not be illuminated) is decreased fuel economy. Alternatively, the chip could simply decrease the amount of fuel used when the engine is in open loop ("open loop" is the operating condition of an engine that is cold, it runs on preset values rather than using feedback from sensors, hence "open loop". A closed loop system takes feedback from the sensors, and uses that feedback to calculated fuel inputs). Since the engine is not taking feedback from the sensors, manufacturers default again to a rich condition. If the sensors do not detect when the engine gets warm, it is preferable for it to continue running rich in closed loop and thereby not overheat. Hence another common diagnostic item when poor fuel economy is reported is to determine if the engine ever comes out of open loop.
Really, I think you should send me a PM if you want to learn more about HP or fuel economy. I typed a bunch more than this but somehow it got deleted, and I don't want to type it again just now, haha.
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