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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Would you buy a new Toyota?
In article ,
cavelamb wrote: F. George McDuffee wrote: snip There appears to be no reason [other than inertia] that NHTSA or another agency cannot require a source code listing for computer control programs for all vehicles sold in the United States as a condition of approval for import. I once had an '88 Corvette, George. One of the hottest after market items was an EPROM that could boost performance. Heck, there were dozens of them. I don't think there was much code there. Just conditions... I had a coworker who in the 1980s installed a reground camshaft in his Saab, the intent being to improve mileage by defeating some of the anti-smog detuning of the engine. He claimed a great improvement in gasoline costs. His commute was one hour each way, so it would be noticeable. I don't thing, in the long run, there was any noticeable difference. It adapted to the way you drive. Maybe a different EPROM for the race track would have made a difference. But for around town? Nada Much. Now days, I hear of people reprogramming the engine control computer. Joe Gwinn |
#2
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Would you buy a new Toyota?
On Tue, 23 Mar 2010 08:50:10 -0400, Joseph Gwinn
wrote: In article , cavelamb wrote: F. George McDuffee wrote: snip There appears to be no reason [other than inertia] that NHTSA or another agency cannot require a source code listing for computer control programs for all vehicles sold in the United States as a condition of approval for import. I once had an '88 Corvette, George. One of the hottest after market items was an EPROM that could boost performance. Heck, there were dozens of them. I don't think there was much code there. Just conditions... I had a coworker who in the 1980s installed a reground camshaft in his Saab, the intent being to improve mileage by defeating some of the anti-smog detuning of the engine. He claimed a great improvement in gasoline costs. His commute was one hour each way, so it would be noticeable. I don't thing, in the long run, there was any noticeable difference. It adapted to the way you drive. Maybe a different EPROM for the race track would have made a difference. But for around town? Nada Much. Now days, I hear of people reprogramming the engine control computer. Joe Gwinn Which IS replacing the Eprom on pre-OBD2 stuff - and even some OBD2 that does not use FLASH rom. |
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