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Subject:Re: misc (mpg, transmission, driving habits.)
From:Kim Brennan
Date:Fri, 12 Sep 2008 19:57:39 -0400

Eh? Isn't that the right horsepower on the SVX? Oh, 230 hp. mea culpa.

On Sep 12, 2008, at 6:24 PM, Jim Akiba wrote:

> Kim do you have an active EGR system on the SVXs in your vans? Where
> does the 240HP for the SVXs come from, measured or guess?
>
> Jim Akiba
>
>
>
> On Fri, Sep 12, 2008 at 3:44 PM, Kim Brennan <kimbrennan@mac.com>
> wrote:
>> My most recent vehicle purchase is not a Vanagon. But a Jaguar X-Type
>> (small 4 wheel drive sedan). I got it as I wanted a winter vehicle
>> OTHER than my Vanagons, and I wanted something that got (relatively)
>> good fuel economy.
>>
>> So it is interesting (to me) to compare engine/transmission and fuel
>> economy between it and my "normal" Vanagons.
>>
>> Vehicle   Jaguar X-type    Vanagon Syncro     Vanagon Syncro Camper
>> Engine        3.0 V6           3.3 H6             3.3 H6
>> weight        3428 lbs        3650 lbs           4000 lbs
>> HP             231             240                240
>> MPG          18-30mpg         16-17 mpg          15-17 mpg
>> L              n/a             6.03               6.03
>> 1st           3.42             3.78               3.78
>> 2nd           2.14             2.06               2.06
>> 3rd           1.45             1.23               1.08
>> 4th           1.03             0.86               0.70
>> 5th           0.77              n/a                n/a
>> Final Drive   3.80             5.43               5.43
>> Tire size   225/45R17       225/70R15          215/75R16
>>
>> MPG figure is real world experience GPS corrected for tire size
>> differences.
>>
>> Tire size on the vanagon doesn't seem to make any difference towards
>> fuel economy (from using 205/65R15 tires or 215/75R16)
>>
>> On the Jag, the gearing is oriented towards sporty. If I don't shift
>> extremely early the mpg figure drops dramatically. Early shifting is
>> around 2800 rpm (at most). On the Vanagons, I find that if I shift at
>> less than 4000 rpms, the engine tends to accelerate VERY slowly (On
>> the Westy, the big jump between 2nd and 3rd really means I wind up
>> 2nd
>> pretty decently.)
>>
>> In reviewing all the specs, it occurs to me that while the
>> aerodynamics make some difference as to the fuel economy, especially
>> above 50 mph, it is possible that the final drive ratio is the big
>> difference.
>>
>> I'll have to do a lot more experimenting with driving habits in my
>> passenger syncro to see if I can't make a significant impact on my
>> fuel economy.
>>