MPG misery

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sven360
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Re: MPG misery

Post by sven360 » 12 Nov 2010 12:26 am

You'll get 50 mpg on the back of an AA truck but no other way I'm afraid.
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Nimminz
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Re: MPG misery

Post by Nimminz » 12 Nov 2010 12:31 am

I'm sure i'll be in that situation at some point but i'll not be glad of the 50mpg then lol
'88 360 +T LSD - sold
'87 760 TDI (D24TIC) - sold
'04 V40 D sport (F9Q, decat, Remapped, launch control)
'89 740 SE (b230ft, 12psi, V-cam, headwork, 'remapped', banded steels)
'86 340 DL 1.4

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Speedy88
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Re: MPG misery

Post by Speedy88 » 12 Nov 2010 12:55 am

You might get 45 out of a kangoo engine but you'd need the 340 drivetrain for that
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

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L14MNP
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Re: MPG misery

Post by L14MNP » 12 Nov 2010 12:23 pm

^ Has anyone ever swapped the torque tube out for a chocolate prop before? lol

Fit a larger capacity turbo motor. It's improved my MPG and that's no BS. lol

Plus it can be done easier and for less cost than a boring albeit more fuel efficient diesel swap etc etc.
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Ride_on
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Re: MPG misery

Post by Ride_on » 12 Nov 2010 02:04 pm

I already mentioned about fitting a 940 higher tech engine, I think that is the reason for your improved MPG. The 360 injection system is very basic.

If you really want good MPG you need to turn it into a series hybrid so that the electric motor is only driving the wheels, should get >100mpg then.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
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1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
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L14MNP
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Re: MPG misery

Post by L14MNP » 12 Nov 2010 02:07 pm

My reason for improvement is I had a Stromberg. lol

Didn't realise a bigger/better replacement had been sugegsted. My apologies. 340pw
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volvosneverdie
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Re: MPG misery

Post by volvosneverdie » 12 Nov 2010 02:08 pm

Ride_on wrote: If you really want good MPG you need to turn it into a series hybrid so that the electric motor is only driving the wheels, should get >100mpg then.
Or pull it by Horse.
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Speedy88
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Re: MPG misery

Post by Speedy88 » 12 Nov 2010 03:01 pm

Hybrids are useless over 50mph! A prius does about 30mpg on the motorway :lol:
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

Nimminz
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Re: MPG misery

Post by Nimminz » 12 Nov 2010 04:27 pm

Not really fancying an engine swap as i don't have room, suitable working space etc. etc.

LPG did interest me but I'm just focussing on getting the engine running properly at the moment as there MUST be something wrong.

Nearly on the warning light and i've done 160 miles since i filled up to the click at the pumps. I'll fill it tonight and work out the MPG properly.
'88 360 +T LSD - sold
'87 760 TDI (D24TIC) - sold
'04 V40 D sport (F9Q, decat, Remapped, launch control)
'89 740 SE (b230ft, 12psi, V-cam, headwork, 'remapped', banded steels)
'86 340 DL 1.4

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L14MNP
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Re: MPG misery

Post by L14MNP » 12 Nov 2010 07:46 pm

Don't take it the wrong way mate, but young, newer drivers can never get the same MPG as an older driver also in 'sensible mode' I don't know what it is, but the only people you will find to dispute this are the young uns themselves!

I think many on here would agree with that.

No doubt there is something off with your engine, but don't expect to get anything over 25MPG IMO.
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jtbo
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Re: MPG misery

Post by jtbo » 13 Nov 2010 10:33 am

It is experience. Being more on road one learns to look more forward and plan more ahead, there comes petrol savings when one don't need to use brakes for much else than holding car on hill.

Basic rule is that every time you touch brake pedal, you waste petrol, to get really good mpg you need to think ahead like in playing chess, adjust speed so that braking is not needed and of course that leads to avoiding excess acceleration.

Most economic driving can be done with car that has no brakes at all, driver is forced to economic driving as stopping would be rather difficult and every stop lowers mpg greatly.

On highway again experience brings ability to use hills as petrol saving devices, gain speed at end of downhill when there is coming hill, let speed decrease on uphill and gain again it back on downhill, on average compared to keeping steady speed petrol saving is quite a bit, but impossible to do properly on traffic as it will drive other drivers insane.

So my french crap has 43.5MPG(UK) figure printed to user's manual when doing steady 90kph, my average consumption is 57.7MPG(UK), while my best on highway has been 64MPG(UK), over million miles of experience on road and trying my best to use as less diesel as possible.

Petrol car is more sensitive to rise in consumption than diesel, imo.

One very important thing, 50mph vs 55mph in my french crap means almost 1l/100km less consumption (almost most of my saving), it is not because air resistance or anything like that, but it is how I drive, doing 55mph it seems that I keep speed more steady and can't drive as well, braking more, also more overtaking etc. Doing 60 or even 70 will skyrocket consumption in any car.

Best would be ofcourse to drive with the flow of traffic, like single fish does in swarm of fishes.

That is at least what I think, surely I can be wrong on some things, but those things work for me, I could easily use just handbrake when driving, it is possible when we have these quite empty roads, but I don't know how things would work in UK where roads are quite crowded when compared to our roads.
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Nimminz
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Re: MPG misery

Post by Nimminz » 18 Nov 2010 11:50 pm

right I'm averaging 22 mpg now since cleaning the air intake out and setting the idle properly (and probably driving much more conservatively) 200 miles on £40. My mate still reckons its misfiring on 1 or 2 cylinders and that i should change the leads whch i will tomorrow. Still going to get rid of the fan and put my electric one on. Aiming for 25 MPG normal driving with the occasional 'fun'. Also going to gap plugs properly, and get some injector cleaner ran through.

Cheers for all the help!
'88 360 +T LSD - sold
'87 760 TDI (D24TIC) - sold
'04 V40 D sport (F9Q, decat, Remapped, launch control)
'89 740 SE (b230ft, 12psi, V-cam, headwork, 'remapped', banded steels)
'86 340 DL 1.4

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Chris_C
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Re: MPG misery

Post by Chris_C » 19 Nov 2010 01:26 am

Do you have the worlds cheapest petrol?! I make 200 miles on £40 about 27MPG @118.9 as it is here, which is pretty GLTish
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

macplaxton
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Re: MPG misery

Post by macplaxton » 19 Nov 2010 05:54 am

That's a good point Chris. I'm thinking units here. You haven't been using US gallons at all? 1 Imperial gallon is 4.55 litres, so

miles / litres x 4.55 = mpg
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jtbo
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Re: MPG misery

Post by jtbo » 19 Nov 2010 09:20 am

How about some litres per 100 miles figures? I have not seen such measure used, so let me be first at something :lol:
My best efforts would be like 7.2 l / 100 miles which does sound awful lot, even it is not :mrgreen:

That would be 14.4 l / 100 miles for my 360 which was leaking petrol, 9 l / 100 km and ~31.6 MPG(UK) if I did not mistaken my numbers and dots.

Proper fuel management would probably save itself back quite fast, better install while you still can without MOT crap, what is done before regulations should be allowed, that is how it is here and probably will be there too, so now is your last chances to make crazy motor swaps and ecu upgrades etc.

Ready to install Megasquirt kits are not too expensive and rather easy to install into original wiring of GLT, that is what I would do at least, some have claimed better than 40MPG after that, how much is that 10+MPG in money? When done properly restoring original ECU for MOT etc is going to be single unplug MS and plugin original, might not be too expensive to buy installation either when considering savings in long run and also potential for angry cams, turbo, other motor etc.

What can you do, I just really like jumping needles and graphs on my laptop screen, when I drive around, too bad laws which you are about to get are already here and I would need catalytic converter installed or over 1000 euros emissions test, proof of engine power, proof that GLT has same brake parts, engine mounts etc as GL etc. etc. etc. No I'm not envy to you, a LOT :lol:

1987 is year limit here, where after lot of crap comes in, 1992 or 1993 onwards even more and when there is low emissions labeled in registration form then putting K&N alone is in theory violation and void of MOT. Sorry from OT, just thought that you would like(hate) to know...
Volvo 360GL -88 -under restoration-
Volvo 343DL vario -81 -running- Image
Volvo 240 Diesel -83 -undecided-
Citroen ZX Dturbo -97 -daily- ImageImage

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