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lolo
Fully Licenced
503 Posts
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 Posted - 31 May 2006 : 10:28:52 PM
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| Also Does anyone an easy formula to calculate the fuel consumption per 100km I hate having to use my brain to work it out the hard way |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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lolo
Fully Licenced
503 Posts
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Posted - 31 May 2006 : 10:32:27 PM
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| Is the consumption formula litres of fuel divided by kilometres then times one hundred ???? |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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crewzincool
P Plater
19 Posts
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Posted - 31 May 2006 : 10:57:34 PM
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That's right!... i find the easiest way is: divide kms by 100, then litres divided by that eg:
50 litres and 365 kms (365 divided by 100 is 3.65)
50 divided by 3.65 = 13.7 lires per 100 |
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James Mongan
P Plater
78 Posts
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Posted - 02 Jun 2006 : 09:33:03 AM
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hey mouce sorry bout the late reply been workin lots lately havnt had time to go on the net. the switch is called a THERMO SWITCH and i got mine from REPCO and i think it was 68 bucks. yeh its good i havnt had to worry about the temp at all since putting it in. and i doesnt take long 15 min max...
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mouce
National Driver
1525 Posts
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Posted - 02 Jun 2006 : 09:57:34 AM
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I just like the idea of being able to adjust the temperature that it kicks in at. Might have to look at that, see if I can use that to get my fuel figures down a little.
I'll have to look into it.
BTW: three page thread and still going...I'm impressed. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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foxtrot.tango
P Plater
86 Posts
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Posted - 03 Jun 2006 : 12:16:57 AM
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| Ow yeah and i started it!! haha.. though of course in this day and age, the way we use fuel is a global hot topic. |
VN Executive 1988 - Auto 3.8V6 |
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mouce
National Driver
1525 Posts
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Posted - 03 Jun 2006 : 10:16:38 AM
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True, but this is the largest thread on this forum that I've found. Still...lots of handy stuff in here.
@James, since you put the temp control in for the cooling fan, have you noticed any change in fuel usage? |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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James Mongan
P Plater
78 Posts
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Posted - 10 Jun 2006 : 04:40:45 AM
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not really, i havee noticed slight more k's out of the car since i've brought it after adding all of these extras; pod, clean intake, mod chip, CAI, Exhaust chop. i've also been using the new unleaded from shell and i do believe that it is getting atleast 50k's extra out of me tank.
p.s. the only problem with the switch is that the heater doesn't work to good so in the next fortnight when i do a minor service on it i'll give it a good flush n' adjust the temp switch so that i can keep warm on these icey mornings. |
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mouce
National Driver
1525 Posts
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Posted - 10 Jun 2006 : 11:12:06 AM
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The reason the heater might not work as well could be that the fan is kicking in earlier and keeping the engine cooler. As such the heater may not be as warm. Try adjusting the temp at which the fan kicks in.
As for the 'new' shell unleaded. I've been involved in testing that...I've found that for my car it's WORSE. The regular unleaded gave me much worse figures than normal, the U95 gives me the same figures as the old REGULAR unleaded did. And Optimax is still just as good. I'm glad to see that it works for some people though. I myself, will be sticking with Optimax.
Also...since your heater isn't working as well, indicating that the engine isn't getting as warm...I'd be more likely to say THAT is why you're getting the extra 50k out of a tank. Especially when combined with the CAI and the POD and the exhaust. Driven nicely those should all drop your fuel use. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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johnny cade
On a small holiday
338 Posts
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Posted - 11 Jun 2006 : 9:25:51 PM
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@everyone...Endever to keep this post going, We should break a record...lol...just keep it going...
@mouse, How come my heater takes so long to warm up as well? Like, ill drive, and itll take a good 45 min for my car to reach operating temp |
He sees an old man and says “See we’ll part with your hard,
Earned cash or rest in peace we can start with your heart.
Some girl steps not afraid she’s gonna cop it sweet,
And gets decked before she made it even on her feet,
The old man leaped to her aid and to his horror he’d,
Thrusted his chest into the blade of his robber s piece,
He grabbed the wallet, dropped the knife as he fled the car,
Concerned about the loss of life he’d never went this far,
What’s done is done, he’d got the prize and he’d spent his half,
Of two dollars in change and a pension card. |
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mouce
National Driver
1525 Posts
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Posted - 11 Jun 2006 : 11:12:04 PM
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The reason your heater takes so long to come up to temperature is that the heater core (in the dash) is essentially a mini-radiator. In the engine bay, as part of the cooling system, there is a little 'tap' (the heater tap), and when you dial the heater controls around to 'red' it opens up a little, allowing some of the coolant to flow into the heater core. Now the longer it takes for the engine to heat up, the longer it takes for the coolant to heat up, which means the longer it takes for your heater to start working.
It's strange, but the worst thing you can do if you want hot air inside your car is have a cooling system that's really really good.
Depending on the type of driving I'm doing it can take 10-15 minutes to warm up or it can take almost an hour (open road cruising at 3AM in the middle of winter).
Air temperature also plays a major role in it too...if it's a 40 degree day your engine will warm up much faster than on a 2 degree morning. Which sucks...because who the hell wants to use their heater on a 40 degree day?
BTW: I'm not sure which record you're hoping to beat with this thread...as far as I know it's the longest one on this site. But there are much longer ones on other forums (I've seen one thread with more than 1000 replies!!!). That said...yeah we should keep it going, as long as it's relevant anyway. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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lolo
Fully Licenced
503 Posts
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Posted - 12 Jun 2006 : 01:25:56 AM
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Im still looking to hit 300ks on 35litres of vortex, any mods other than pod filter hooked up to CAI that I can use to do this cos this car is costing me
sh!tloads in fuel... up to 100 bux a week |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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mouce
National Driver
1525 Posts
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Posted - 12 Jun 2006 : 12:10:48 PM
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Keep the tyre pressures high. BTW: 300k out of 35L is 11.66L/100km, around town in a manual, that's about where a healthy car would be, in an auto, that's doing quite well.
If you were to be on the open road you should be able to expect 400km out of that much fuel, if not more.
Sounds like your car is having a few MAJOR issues with fuel consumption. Either you've got a really heavy right foot and enjoy doing 80kph in 2nd gear with flat tyres, or something is wrong with the engine. In a previous post you mention your engine light...if you've seen that then check for fault codes. All you need is a paper clip and someone who can count.
There's a lot of how-to guides to tell you what to do to get the fault codes, once you've got them post them up here and I'll tell you what they mean.
First up it would be worth checking the condition of your O2 sensor (look on the passenger side exhaust header, you'll see something screwed into it looks like a spark plug). A really common cause of high fuel consumption is a busted O2 sensor. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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lolo
Fully Licenced
503 Posts
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Posted - 15 Jun 2006 : 11:26:38 PM
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| Actually I do sometimes have a lead foot and the screwed auto wont hit 3rd until 80 with the revs screaming bloody murder however my engine does have major problems that will be getting checked out this weekend hopefully. My O2 sensor looks ok however Ive got 270000 0n the odometer so I bought a new one just for good measure yet it still has to be put in- I dont wanna do it myself as I dont have an RPM gauge so I dont have a good idea of wat 3000rpm sounds like in a VN |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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mouce
National Driver
1525 Posts
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Posted - 16 Jun 2006 : 10:57:51 AM
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| Yeah...I think that the auto will be the major reason behind the fuel usage being so high. I'm normally in 4th doing 80, sometimes 5th. As for what 3000rpm sounds like...it doesn't really matter, so long as you're OVER 3000rpm it will reset. 60kph in 2nd should be about 3000-3500rpm from memory. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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lolo
Fully Licenced
503 Posts
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Posted - 18 Jun 2006 : 12:01:55 AM
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oh sweet then the O2 sensors goin in however the tranny is a catch 22, I need to save for a new one yet I cant cos of the amount of petrol i use... b!oody petrol.
Also I got a radiator of ebay and want to fit it myself, do I fit it dry, put the coolant in then start the car??? do I have to follow any procedure?? |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
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mouce
National Driver
1525 Posts
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Posted - 18 Jun 2006 : 2:07:46 PM
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Shouldn't need a rebuild, just have the bands tightened. Call around, that shouldn't be too expensive. Not when you compare it to the price of a new one anyway.
As for the radiator, this comes straight out of the Gregory's manual (I figure you can unbolt the old one and bolt the new one in without any instructions):
TO DRAIN AND REFILL
1) Set the heater controls to the hot position
2) Position a suitable container under the cylinder block drain plugs and remove the surge tank cap. The drain plugs are located on each side of the cylinder block.
3) Remove the cylinder block drain plugs, disconnect the lower radiator hose and drain the coolant into the container.
4) When the coolant has drained clean the cylinder block drain plugs, apply Loctite 242 or similar to the threads and tighten the drain plugs to 54Nm.
5) disconnect the water pump bypass hose from the front of the inlet manifold, and the overflow hose from the radiator.
6) Loosen the clamp retaining the thermostat cover outlet hose to the pipe at the rear of the engine and insert a blunt nose screwdriver between the hose and pipe using care to not damage the hose.
7) Slowly fill the surge tank with the specified coolant until the coolant begins to flow from the bypass and radiator overflow hose connections. Connect the hoses securely.
8) Continue filling the surge tank until coolant flows from the hose where the screwdriver is installed. Remove the screwdriver and tighten the clamp securely.
9) Fill the surge tank with the specified coolant as previously described and install three cooling system pellets, available from Holden, into the surge tank. (NOTE: I've never heard of these things in my life...I don't know if you need them or not with 'modern' coolant mixtures).
10) Start and run the engine for 20 minutes to disolve the pellets and purge any air that may be trapped in the cylinder heads, Check the coolant level as per normal and top up if required.
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Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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mouce
National Driver
1525 Posts
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Posted - 18 Jun 2006 : 10:21:59 PM
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For all you wonderful members out there...
I put together a bit of a list of things which I have found to help save a bit of fuel. I started another thread just for it, but thought I should link to it from here too, I figure if anyone is patient enough to read through three pages of this thread then they deserve a few extra tips.
Enjoy:
http://www.vncommodore.com/forum/topic.asp?TOPIC_ID=298 |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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James Mongan
P Plater
78 Posts
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Posted - 20 Jun 2006 : 11:24:56 AM
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| hey mouce i thought that i should look at the hearter core to see what sort of condition it was in, and whatta ya know it was full of ****. so i cleaned and flushed it out and it alread i can notice the difference in the temp inside within 10-15 minutes. |
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mouce
National Driver
1525 Posts
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Posted - 20 Jun 2006 : 6:47:06 PM
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| Sweet. Glad it was nice and easy. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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akface
P Plater
24 Posts
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Posted - 02 Mar 2007 : 11:35:58 AM
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i am soo happy with the fuel consumption in my 90 vn calais!
the trip computer says that there is 470kms left while ive already driven 60 kms in city....a little on the the freeway to get to the city and things! :D:D
i filled my tank up so much with vortx 98 that it was overflowing and on the special functions of the trip computer it said that i had like 66 litres! hahaha anyway very happy nursing my baby calais!! |
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