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Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
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 Posted: Thu Oct 30, 2008 12:14 am Post subject: |
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Hi
About 28mpg in normal use. Can coax a bit more out of it in motorway use from the P4.
The old 1.3 carbed S3 would manage 39mpg on long motorway runs sitting at about 80~90. And about 20mpg around town.
All the best
Keith
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lee16v
16 Valve
Joined: 29 Jun 2005
Posts: 1429
Location: Devon, UK
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| Posted: Sun Nov 02, 2008 11:53 am Post subject: |
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| johnboy wrote: |
hi guys
i think lee 16 and i could beat 16 mpg round spa!
Regards john. |
I was doing 16mpb John! (Miles per bearing)  |
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johnboy
16 Valve
Joined: 26 Jun 2003
Posts: 1061
Location: margate U.K
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| Posted: Sun Nov 02, 2008 12:58 pm Post subject: |
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| lee16v wrote: |
| johnboy wrote: |
hi guys
i think lee 16 and i could beat 16 mpg round spa!
Regards john. |
I was doing 16mpb John! (Miles per bearing) |
lol
yeah that's true chap.but it's all better now 
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WODA WE NEED? MORE POWER!!
Alfa gt jtdm blackline
1990 S2 16v veloce sleeping!
2002 ts gtv the wifes now
1997 seadoo gsx 800
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Midi
Alfa Arna
Joined: 09 Apr 2008
Posts: 17
Location: Finland
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| Posted: Mon Nov 03, 2008 2:59 pm Post subject: |
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My 33 does something about 550km with full tank, 54 litres. Don't know about the MPG as we don't use gallons in Finland 
I hope that i can get better result after adjusting the carburetors, because the workshop manual says 6,1 litres/100km when driving 90 km/h.. I would be happy to get even 8l/100km as it's now something like 9-9,5l/100km.
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Fiat 126A
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Alfa Romeo 33 4x4 Giardinetta -89
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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rsfruitbat
Alfa Sprint
Joined: 13 Jun 2007
Posts: 241
Location: Kidderminster
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| Posted: Fri Nov 07, 2008 8:56 am Post subject: |
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Havent done enough miles yet to know what the 1400 16V will do but my old 1600 8V used to do 25 - 30 on a run or on the stages we used to get around 8MPG
rsfruitbat
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1399cc 16V
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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BigAl
P4
Joined: 06 May 2003
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Location: U.K Surrey
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Tue Dec 09, 2008 11:38 pm Post subject: |
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31.12 MPG asda 95 ron
much better now AFM has been properly set up, but im running with no lambda correction until i can afford one. I still have a lazy thermostat and its been cold.
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BigAl
P4
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Location: U.K Surrey
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Dr A. 33 1.5IE
Alfa Sprint
Joined: 23 Jun 2005
Posts: 133
Location: Nicosia - Cyprus
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| Posted: Mon Mar 30, 2009 9:04 am Post subject: |
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Hello BigAl,
Can you please tell how much did the new lamda cost? and regarding the thermostat how does this affect consumption?
Thanks in advance
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1994 Alfa 33 1.5 IE Cat. 220.000Kms and still going strong!!! (Από την Αθήνα και τώρα στην Λευκωσία) |
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Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
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| Posted: Mon Mar 30, 2009 11:05 am Post subject: |
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| Dr A. 33 1.5IE wrote: |
| and regarding the thermostat how does this affect consumption? |
A cold engine (from a faulty thermostat) will trick the ecu into a richer mixture (ie, like a choke).
All the best
Keith
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Mon Mar 30, 2009 11:16 am Post subject: |
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Hi Dr. A
The lambda sensor cost £45+Vat.
The thermostat was causing bad fuel consumption because the car would only get to proper running temp if stationary, as soon as i was on the move it dropped down to 60c ish. I was going to put a hose clamp on and remove when necessary but decided against that and i was going to put card in front of the radiator where is no fan but decided against that too. At a certain temp the ecu switches from running with a choke, because the engine is cold, to normal running. I couldn't find out what this temperature was so i tried to fool the car into thinking it was running a normal temp by putting a 330Ohm resistor in place of the CTS "thermistor" but after 5 mins of no fluctuation the ecu thinks its a dead sensor and ignores it. An electrician friend was going to make a circuit that fluctuates between 2 set resistor values every second, with an led flashing to show it was correctly connected and working.
It was definitely the thermostat causing the bad fuel consumption because the AFM was calibrated, when the car was at running temp and even with no lambda correction i was seeing 32 mpg before the thermostat got stuck open.
Hope i haven't waffled on too much 
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BigAl
P4
Joined: 06 May 2003
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Location: U.K Surrey
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Ben_nz
Gold Cloverleaf
Joined: 30 Sep 2003
Posts: 575
Location: Auckland, New Zealand
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| Posted: Mon Mar 30, 2009 10:34 pm Post subject: |
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Big Al, you haven't waffled too much but you have made me suspicious that you might be crazy, going to such lengths to avoid changing a thermostat!
With the engine not up to proper operating temp, the oil might not be either and you're gonna feel guilty about driving hard.
I took the top off one of the Weber carbs on my 1.5TI last weekend and was surprised to find no fuel in there at all. So every time you park your pancake-filter-equipped carby 33, you lose all the fuel in the float bowls of both carburettors plus, it seems, a lot of the fuel from the engine bay fuel lines. All via evaporation. With me only driving my two series 2 33s for short trips on weekends, it's no wonder they get pretty lousy mileage.
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Tue Mar 31, 2009 3:07 am Post subject: |
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| Ben_nz wrote: |
| Big Al, you haven't waffled too much but you have made me suspicious that you might be crazy, going to such lengths to avoid changing a thermostat! |
what was crazy was the price i was going to be charged for a new one, £45+vat P&P, compared to around £13 from alfashop with no p&p as it will come with other orders. However thanks to another member i sourced it from somewhere else. I'm sure i have paid double in fuel though 
You were right, i did feel a little guilty when i did occasionally give it some as i normally don't rev past 3k when not at running temp. I found myself yearning for a bit of stationary traffic enabling me to use the rest of the rpm range.
I did pose the question about oil temps vs coolant temp and if after the normal time and engine takes to get to temp, would the oil be up to temp as well.
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Rich B
Alfa 33
Joined: 19 May 2003
Posts: 386
Location: Southampton
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| Posted: Tue Mar 31, 2009 10:35 am Post subject: |
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| I'm too young to be concerned about fuel economy. Isn't this a topic normally discussed by people with beards who own diesels?? |
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Tue Mar 31, 2009 11:05 am Post subject: |
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lol, true true I must be getting old and supporting a beard. Must admit, when i was in my teens i wasn't bothered, but with today's petrol prices and now i'm older and possibly wiser i find myself trying to get better mpg. Shoot me, put me out of my misery, i am no longer a petrol head 
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JeremyC
Gold Cloverleaf
Joined: 06 Sep 2008
Posts: 583
Location: Petersfield, Hampshire
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| Posted: Tue Mar 31, 2009 11:07 am Post subject: |
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Surely it's useful as a measure of how sorted the engine is.
Al, did you use a Bosch lamda sensor or a generic one?
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Tue Mar 31, 2009 11:14 am Post subject: |
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Thats what i say, so i knew something was up when my wallet started to get empty quicker.
Bosch Bosch Bosch Bosch Bosch Bosch Bosch Bosch Bosch Bosch Bosch, although the supplier did suggest an NGK one for £5 less.
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RBL
Alfa Sprint
Joined: 30 Mar 2003
Posts: 162
Location: Leicestershire
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| Posted: Tue Mar 31, 2009 12:17 pm Post subject: |
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I took the Spyder out for a 4 hour return trip to Essex last week and got 30mpg.
Mainly motorway 65 - 80mph, the rest country lane blasting. Super unleaded. 15" wheels with 195/60 15" tyres must obviously help.
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Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
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| Posted: Tue Mar 31, 2009 12:50 pm Post subject: |
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| BigAl wrote: |
| I did pose the question about oil temps vs coolant temp and if after the normal time and engine takes to get to temp, would the oil be up to temp as well. |
Oil will take far longer to warm up than the coolant.
All the best
Keith
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Ben_nz
Gold Cloverleaf
Joined: 30 Sep 2003
Posts: 575
Location: Auckland, New Zealand
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| Posted: Wed Apr 01, 2009 5:52 am Post subject: |
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| Rich B wrote: |
| I'm too young to be concerned about fuel economy. Isn't this a topic normally discussed by people with beards who own diesels?? |
Yes, over at alfaowner.com.
They're strange people, with the money to buy new cars but not to buy fuel. 
Here fuel economy is a measure of how much is wrong with your 33.
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Rich B
Alfa 33
Joined: 19 May 2003
Posts: 386
Location: Southampton
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| Posted: Wed Apr 01, 2009 11:01 am Post subject: |
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| Ben_nz wrote: |
| Rich B wrote: |
| I'm too young to be concerned about fuel economy. Isn't this a topic normally discussed by people with beards who own diesels?? |
Yes, over at alfaowner.com.
They're strange people, with the money to buy new cars but not to buy fuel.
Here fuel economy is a measure of how much is wrong with your 33. |
You're quite right Ben. On the GT forum there is an ongoing debate as to whether diesel is better than petrol etc, really quite dull. It seems anyone who has bought the diesel version seems to need to justify it to everyone else, zzzzzzzzzzzzzzzzzzzzzzz |
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Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
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| Posted: Wed Apr 01, 2009 4:47 pm Post subject: |
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Hi
They seem very proud of the torque, while forgetting that the lack of revs means higher gearing, which wastes most of the torque.
All the best
Keith
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