Date: Sun, 23 Jul 2000 23:23:24 -0700
Reply-To: Karl Wolz <wolzphoto@worldnet.att.net>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Karl Wolz <wolzphoto@worldnet.att.net>
Subject: Re: Engine Conversion and MPG
That's roughly 23.5 mpg, and not an unreasonable figure.
My understanding is that fuel economy is determined primarily by vehicle
weight. frontal area and driving style. Changing the power plant should not
have a significant effect on fuel economy, and your figures kinda bear this
out.
Karl Wolz
----- Original Message -----
From: "David Marshall" <vanagon@volkswagen.org>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, July 23, 2000 11:09 PM
Subject: Re: Engine Conversion and MPG
> Our 84 Westfalia gets 10L per 100km - I'll let you do the conversion here
> to get MPG:
>
> The stats of the van to get this economy
>
> Engine 1986 Jetta GLI 1.8L 8V with 200,000+ km
> CO 0.5%
> Fuel Petro Canada 87 Octane
> Idle 950 rpm
> Timing 3 BTDC at idle, 28 BTDC at 4500 RPM
> Injection CIS
> Compression Ratio 10:1
> Engine speed 110 to 115 km/h
> Tires 195/75R14 at 40PSI fron and 48PSI rear
>
> We usually try to keep the engine in the 3800 to 4000 rpm range - we find
> it runs cooler (mid way between the cold line and the LED) that if we run
> it at 3200 RPM (just below the LED).
>
>
> At 11:25 AM 23/07/2000 -0700, Mark Drillock wrote:
> >Don't believe everything you read. The aerodynamics of the Vanagon are
> >not improved by engine conversions or mods. The MPG can certainly be
> >improved but a claim of 25 MPG at 75 MPH puts all claims by that person
> >under suspicion in my book. Come on out to Calif with such a Vanagon and
> >we can drive together up and down I5 400 miles each way from San Diego
> >to SF. We will check the odometer with mile markers and the speedo with
> >a stop watch. If it gets a true 25 MPG over 800 miles at an average of
> >75 MPH I will give you $500. If it gets less than 23 MPG you give me
> >$250. Between those numbers we will call it a draw. This offer does not
> >apply to Diesel engined Vanagons.
> >
> >Mark
> >
> >David Ricketts wrote:
> >>
> >> I was a little surprised to hear some of the MPG quoted with engine
mods
> >> and conversions. I believe one person said he had 30mpg with a Bus and
> >> someone else had 25mpg with increased horse power.
> >>
> >> Can anyone comment on MPG above 22mpg. Are you getting it with a
> >> conversion or modifications or stock. I am dripping along at 16 mpg,
> >> with a motor that doesn't have a lot of power.
> >>
> >> Thanks,
> >>
> >> David
> >
> >
>
> -- David Marshall - Volkswagen Enthusiast - Quesnel, BC, Canada --
> -- 78 VW Rabbit, 80 VW Iltis, 80 VW Caddy, 84 VW Westfalia --
> -- 85 VW Cabriolet, 87 Audi 5000 Quattro, 88 VW Syncro Double Cab --
> -- David's Volkswagen Home Page http://www.volkswagen.org --
> -- Fast Forward Autobahn Sport Tuning http://www.fastforward.ca --
> -- david@volkswagen.org (pmail) or vanagon@volkswagen.org (list) --
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