Message-ID: <3AEBAC23.892851E2@progress.com>
Date: Sun, 29 Apr 2001 01:52:35 -0400
From: Marcelo Pacheco <pacheco@progress.com>
Organization: PROGRESS Software Professional Services
MIME-Version: 1.0
To: lancair.list@olsusa.com
Subject: Re: running lean of peak
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Reply-To: lancair.list@olsusa.com

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> A little confused here on your post. I operate my engine LOP for range,  and 
> to keep the temps low. Increasing MAP up to 36" at 15 GPH is *NOT* my idea of 
> operating at LOP for efficiency. 29" MAP gives me 15GPH, increasing MAP will, 
> of course, result in a higher fuel flow, which decreases my range. I only 
> lose 20 KTS TAS by running 58% power (I know very well how to calculate HP). 
> Occasionally I'll bump the HP up to 75% to impress somebody, to demonstrate 
> 305 KTS TAS. Lots of fun!!!
>
> Regards,
> Tony Durizzi

Hi Tony,

I'm confused too when you says 29" MAP gives you 15GPH. It's the
throttle/mixture/prop setting combination that will determine what fuel flow you
get, instead of just throttle. You could go to 32", while keeping 15GPH which
should give even lower temps (not soo low because the intake air comes hotter as
you increase MAP due to the turbos running faster, there's only so much cooling
the intercoolers can do).
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