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jmmoss Alfa Arna
Joined: 21 Jan 2004 Posts: 23 Location: Melbourne
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Posted: Wed Aug 11, 2004 7:25 am Post subject: Fuel Injection Vs Twin Carb 33 fuel consumption |
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Hi there,
I am thinking about selling my 1987 33 1.5 twin carb for a 1991 16v 1.7 33 with fuel injection. Although a really like my current 33, I only get 350km per AUS$40 tankful which is quite poor I feel. I am thinking of upgrading for the later 33 mainly for the increase in performance and a hope of getting better fuel economy. How much fuel could a expect to save with the fuel injected 33? Even 10% would be a help now petrol prices are going so high! _________________ Alfa 33 4c 1.5 Gold Cloverleaf 1987
with Air Conditioning |
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Ben_nz Gold Cloverleaf
Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
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Posted: Wed Aug 11, 2004 9:57 am Post subject: |
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Don't complain about fuel prices until you've lived in England - that must be the reason people actually buy diesel cars over there!
How low are you draining your tank? $40 doesn't say how many litres you're using because the prices vary.
If I run my series 2 1.7 33 until there's only 5 or 6 litres left (based on 44~45 litres going in when I fill up), I get about 450km, more if I'm lucky. That's a combination of city and a decent portion of motorway driving, slightly more hoony than your average motorist.
According to my 33's handbook, a 1.5TI should use 10.7 l/100km in a (typical italian?) urban journey. If you use 40 litres out of your 50 litre tank, you should get 374km. My 1.7QV should get 351km.
Maybe your 33 needs a tune, check tyre pressures, spray carb cleaner, recite mystical chant etc. Always preferable to winding up the windows, turning off the aria condizienta and driving slower. |
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Eddie W Alfa 33
Joined: 31 Jul 2003 Posts: 375 Location: new zealand
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Posted: Wed Aug 11, 2004 11:40 am Post subject: |
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Jmmoss, in a word, floats and needle valves.
Regards Eddie _________________ A LITTLE FURTHER A LITTLE FASTER |
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gritsop Green Cloverleaf
Joined: 23 Apr 2003 Posts: 766 Location: Ekali, Athens - Greece
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Posted: Wed Aug 11, 2004 11:53 am Post subject: |
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Hi,
My 33 uses around 38-40 lt doing around 400kms.
I fill 'er up when the tank has around 12 liters left.
I have to admit that the car travels in open suberb roads which means no traffic lights, stops, 1-2 gear etc. but constantly 4th or fifth gear.
For statistical reasons I mention that prise per litre is around 0.8€ unleaded (RON95).
Regards, _________________ Thanassis Gritsopoulos
1991 Alfa 33 1.4 IE
2001 Alfa 147 1.6 Distinctive
http://www.alfa-restoration.co.uk
Parts Shop: www.alfa-restoration.co.uk/shop |
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jonninaustralian (jmmoss) Guest
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Posted: Thu Aug 12, 2004 11:42 am Post subject: |
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Just emigrated from England to Australia actually - but it doesn't get easier as the car trips are longer and the wages are that bit lower. It has hit aus$1.00 / litre here now, and I can't see it going down much. I just had my 33 tuned by an Italian mechanic in Melbourne - but perhaps he tuned for performance rather than economy. Either way I guess least the 1990's 33's don't go out of tune so easily due to fuel injection. Still keen on an LPG gas conversion - but my thread on here about the ins and outs of doing one on the 33 didn't much response - but an interesting thing in my Owner's Manual is that Alfa actually give tyre pressures if "LPG tank is fitted". But if a conversion turned it into a milk cart it would be terrible! |
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burgo90 Alfa Sprint
Joined: 29 May 2003 Posts: 118
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Ben_nz Gold Cloverleaf
Joined: 30 Sep 2003 Posts: 575 Location: Auckland, New Zealand
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Posted: Fri Aug 13, 2004 7:04 am Post subject: |
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At the time of writing, one Aussie dollar is equivalent to 0.388265 British pounds.
(http://www.xe.com/ucc/ currency converter)
I'm now at over 470km and my tank isn't quite empty.
I'm happy with my 33's economy and power compared to my last car (a 1.8 carby 3-speed automatic)... |
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Marcin Alfa Sprint
Joined: 13 Mar 2003 Posts: 117 Location: Amsterdam
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Posted: Fri Aug 13, 2004 9:53 am Post subject: |
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Hi,
that's quite bad economy figures you guys post here! I'm doing 130km every day to get to my work, of which 100 is highway and 30 is local road/town. On the highway I'm mostly doing 100-130 km/h (if there is no jam ) I've an '93 model with 1.4ie engine, and it consumes about 6.8 liters per 100km. I've been keeping a record of the used petrol and distance travelled since the beginning of this year and the average is this 6.8 l/100km. Even if my odometer/speedo overestimates the distance/speed by 5% (which I think it does), then it's still 7.1 l/100km, which is not bad I think. B.t.w., I really don't avoid revving above 4000rpm
Cheers,
Marcin |
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