triumphs
[Top] [All Lists]

RE: [TR] re:TR] Adj. SU's leaner

To: "'Triumphs List'" <triumphs@autox.team.net>
Subject: RE: [TR] re:TR] Adj. SU's leaner
From: "Randall" <tr3driver@ca.rr.com>
Date: Mon, 30 Apr 2007 13:52:37 -0700
> At least here in PA, we have 10% ethanol in the gas.  It 
> takes double the amount of ethanol than gas for the same 
> amount of air.  Therefore with the same metering of fuel 
> (gallons per hour), the engine will be running LEAN.  But you 
> will have no change in the MPG!

Actually, even with optimum mixture, the MPG goes down with the ethanol
blend; basically for exactly the same reason it takes less air to burn.  A
gallon of ethanol just doesn't have as much energy as a gallon of gasoline;
with the result that you should expect to burn about 5% more E10 than
straight gasoline.  (Assuming of course that the change in mixture doesn't
push your engine over into lean misfire, which is a common result on 70's
vehicles with fixed-jet carburetors.)

Randall


CONFIDENTIALITY. This electronic mail and any files transmitted with it may 
contain information proprietary to NavCom Technology, Inc., or one of its 
affiliates, and are intended solely for the use of the individual or entity to 
whom they are addressed, shall be maintained in confidence and not disclosed to 
third parties without the written consent of the sender. If you are not the 
intended recipient or the person responsible for delivering the electronic mail 
to the intended recipient, be advised that you have received this electronic 
mail in error and that any use, dissemination, forwarding, printing, or copying 
of this electronic mail is strictly prohibited. If you have received this 
electronic mail in error, please immediately notify the sender by return mail.


===  This list supported in part by The Vintage Triumph Register
===     http://www.vtr.org



<Prev in Thread] Current Thread [Next in Thread>