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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars

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700/900 Fuel Economy (Petrol Engines)

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View Poll Results: What is your car's best fuel economy (petrol engines)?
Less than 20mpg 11 5.61%
20-21mpg 8 4.08%
22-23mpg 14 7.14%
24-25mpg 34 17.35%
26-27mpg 27 13.78%
28-29mpg 29 14.80%
30-31mpg 31 15.82%
32-33mpg 19 9.69%
34-35mpg 5 2.55%
Greater than 35mpg! 18 9.18%
Voters: 196. You may not vote on this poll

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Old Mar 11th, 2010, 18:28   #21
Steve Rodgers
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Model: 744GLE
Best MPG: 25mpg
Model Year: 1989
Engine: B230E (ZF Auto)

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Old Mar 11th, 2010, 18:28   #22
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IIRC, in gear 5, 70mph, it's at (ca. 2900rpm) with my configuration.

(M47, 3.91:1 final drive I think).
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Old Mar 11th, 2010, 18:34   #23
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Default 940 Fuel Consumption

Given the sizeable range of engines that have been put under the bonnet of the 940 during its long life it is a bit disconcerting to try to work out how the general consumption data can be helpful to me unless it clearly indicates which engine configuration is appropriate, which all sounds a bit anorak if not train spotter.
For my part, I would be interested to know what other 2.3 HPT [with auto] owners get to see if mine is roughly in the ball park or I need to spend some time fettling it.
It has stimulated a good debate though which must be good!
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Old Mar 11th, 2010, 18:53   #24
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Quote:
Originally Posted by smithy View Post
3k rpm on mine is 85 mph to 90 mph and then the turbo starts to kick in lol
There's my problem then. My gear box is too low ratio. I wonder if it can be swapped, and even if it would be worth the effort, or whether my money would be better spent just buying a turbo version.
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Old Mar 11th, 2010, 18:56   #25
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Quote:
Originally Posted by telmo View Post
Mine at 3k rpm is about 125km/h / 77MPH (at speedometer)
[740 B200ET saloon manual]
mine is a 940 1997 2.3 lpt manual saloon with g80 locker the pics are on showroom .
buy a turbo version latest 1 possible .
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Old Mar 11th, 2010, 19:37   #26
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Quote:
Originally Posted by rippedoffagain View Post
There's my problem then. My gear box is too low ratio. I wonder if it can be swapped, and even if it would be worth the effort, or whether my money would be better spent just buying a turbo version.
Don't swap the gearbox. Fit a higher ratio back axle/dif.
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Old Mar 11th, 2010, 19:39   #27
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Originally Posted by arcturus View Post
Don't swap the gearbox. Fit a higher ratio back axle/dif.
or buy the 940 lpt in the sales section the car is aldone for you.
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Old Mar 11th, 2010, 20:24   #28
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Model: 940 Turbo HPT
Best MPG: 33 (only once on a 4+ hour journey to Devon, never again!)
Average MPG: 23-25
Model Year: 1995
Engine: B230FT
Gearbox: Manual, M90
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Old Mar 11th, 2010, 20:49   #29
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B230 MPT (badged as a "Classic" therefore LPT, got a factory boost gauge therefore HPT, so split the difference for a Medium-Pressure Turbo) with 5-speed manual box.
Overall average is 28.89mpg over 59k miles since I bought the Exxon Valdez. I'm reasonably happy with that. I've probably had better transient figures but the ones I quote are based on fill-to-fill and trip-mileometer recordings.
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Old Mar 11th, 2010, 21:10   #30
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Quote:
Originally Posted by arcturus View Post
Don't swap the gearbox. Fit a higher ratio back axle/dif.
I didn't know that was an option. Thanks for the tip, but...

Quote:
Originally Posted by smithy View Post
or buy the 940 lpt in the sales section the car is aldone for you.
...I might do that when finances allow. For now though I have to penny pinch because we are moving this weekend, then moving again in a few weeks once we find somewhere long term.

I'm glad this thread happened, because I love the 940, but didn't really know much about the variations. I guess the slightly newer LPT one is more the car for me. Given that Helga is not in perfect condition, it seems sensible to start off with a better starting point rather than spending loads of time and money on Helga.
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