To: | "Ed Weldon" <23.weldon@comcast.net>, "Sparky" |
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Subject: | RE: E85, more questions |
From: | "Dave Dahlgren" <ddahlgren@snet.net> |
Date: | Thu, 8 Jun 2006 12:51:55 -0400 |
Turbos affect air density.. The pressures are not as great as you might imagine. All those calculators that say you have an effective compression ratio for a certain amount of boost are horse droppings.. Last I knew the EPA does a driving cycle and I doubt if breaking the speed limit is part of the cycle so the boost might not be much or very frequent. Dave > -----Original Message----- > From: owner-land-speed@autox.team.net > [mailto:owner-land-speed@autox.team.net]On Behalf Of Ed Weldon > Sent: Thursday, June 08, 2006 11:31 AM > To: Sparky > Cc: land-speed@autox.team.net; dave@gotstogo.com > Subject: Re: E85, more questions > > . > I guess the nitrogen compound emission problem killed high compression > ratios; but I wonder if modern emission control technology is able to > overcome that. I suppose it can; since we have turbocharged engines that > operate at high compression pressures. Or is there some ignored > loophole in > the emision regulations that allow for the relatively infrequent > use of high > power output conditions in turbocharged passenger car engines? > For example > do the treadmill smog tests now used in CA get the power output anywhere > near high enough to get a turbo really working? ....I wonder. > Ed Weldon -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.8.2/357 - Release Date: 06/06/2006 |
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