i get 8mpg better with the tail gate down
----- Original Message -----
From: <emanteno@comcast.net>
To: "Larry Young" <cartravel@pobox.com>; "Jack W. Drews"
<vinttr4@geneseo.net>; "FOT" <fot@autox.team.net>
Sent: Saturday, March 05, 2005 11:04 PM
Subject: Re: aerodynamics question
> -------------- Original message from Larry Young --------------
>> While we're on this subject, does anyone know whether a hardtop would
>> reduce drag on a TR3 or TR4?
> While this isn't racing data, I did check fuel economy with the top up and
> down on a road trip to a VTR Convention in my TR6 . With it up, the
> mileage went up 4 mpg. I attributed that to better aerodynamics with the
> top up, but that's just an uneducated guess on my part.
> I was also able to observe that a TR4 will lose 500 rpm on the straight at
> Road America if the trunk lid comes up and stays up, but that's another
> story.
> :-)
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