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Old 12-30-2019, 12:53 PM   #1 (permalink)
JohnAh
EcoModding Apprentice
 
Join Date: May 2012
Location: Vallentuna, Sweden
Posts: 128

Phantom Blot (Spökplumpen in swedish) - '75 Saab 96 V4
90 day: 52.77 mpg (US)
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ecoXtrm - vintage two-stroke Saab 96 with roof extension from Saab 95

Hi all aero-modders! I have two crazy Saab rides already, plus something of a Frankenstein body on wheels that i finally think I know what to do with. Extreme ecodriving have been a hobby of mine fore a couple of years now and I have managed to HALF the normal fuel consumption of my +40 year old Saab 96, just by driving skills and the help from engine kill switches. Don't know how many tens of thousands cycles my starter have performed, still going strong.

Since long ago I've been interested in seing what my driving skills can do with the 1960's Saab two-stroke engine. I have installed such an engine in my 1968 Saab 95 station wagon "Frankenfrog", but due to huge offroad tires, a good lift and other modifications I don't think that car will be the best platform for extreme ecodriving.

My third Saab is a replica of a 1964 "short nose" model 96 sedan. I also have the complete roof from a 1968 Saab 95 station wagon, so my idea is to attach the 95-roof behind the B-pillars, giving it a backward slope and longer roof-line than the original 95. To further reduce aerodynamic drag I will cut all roof/window pillars on the right side and move them in to the middle of the car. This will result in a narrow cabin like an aircraft. The sides of the cabin will also decrease in width further back, almost like an aircraft tail.

I've been heavily inspired by the blue "tandem" Geo Metro from the 1990's, many of you may have seen. It looks both enormously cool and absolutely ridiculous. I don't mind that.

I intend to start with a 1965 Saab two-stroke 840cc, just to see how efficient I can get, then replace it with a tiny two-cylinder Kubota diesel of only 600cc/12hp. It's problably possible to indrease the diesel's power to reach 15-20 hp and that should be perfectly fine to reach quite high cruising speeds. To improve accelerations I can ADD a 440cc two-stroke snowmobile engine that I only need to run in short bursts.

So, what do you think, am I onto something successful here?

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1975 Saab 96 V4, carburetted stock engine. Usually below 4,5 L100 = above 53 mpg (us) by Burn & Glide with engine shut-off. http://ecomodder.com/forum/em-fuel-l...vehicleid=8470
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