best fuel

by **thebeast.** » October 14th, 2008, 3:40 pm

i get like 13L/100km on the highway.. is that good or bad.
also isnt higher octane stufff ment to give it more of a boost then better milage??

by **nommic** » October 14th, 2008, 4:34 pm

13L/100km on highway = bad (especially if stock). I get 7~9L/100km on the highway.

by **edfairmont4.0** » October 15th, 2008, 12:03 am

thebeast. wrote:i get like 13L/100km on the highway.. is that good or bad.
also isnt higher octane stufff ment to give it more of a boost then better milage??

thats really fucked man.... Change your Oxygen Sensor NOW.

Better fuel needs less of it to run properly- thus using less of it.

by **thebeast.** » October 15th, 2008, 7:56 am

i have no idea how to change it im a noob..

by **LTDHO** » October 15th, 2008, 9:35 am

My 2cents.

Ethonal is fin an any EFI car. As much so that E10 will be replaced soon to include more Ethonal.

Stock car needs stock fuel, unless you make to much money. If it runs shit, then there is a fault with the car.

by **edfairmont4.0** » October 15th, 2008, 10:05 am

thebeast. wrote:i have no idea how to change it im a noob..

Very easy dude,,, side of your exhaust manifold.... you will see a "thingo" in the side of the headers with a wire. disconnect the wire, get a shifter and undo!

by **TriymeD** » October 15th, 2008, 10:20 am

So those of you who uses E10 which is cheaper most of the time, if unleaded is the same price as it was last night with voucher which would you get?

by **edfairmont4.0** » October 15th, 2008, 12:08 pm

Ethanol is only 2 cents cheaper... and gets less economy, I would rather run my car on what its supposed to run. (At the moment) anyway.

by **Barnsy** » October 15th, 2008, 12:14 pm

by **edfairmont4.0** » October 15th, 2008, 12:17 pm

LPG Injection!

by **t1MMy** » October 15th, 2008, 12:17 pm

Barnsy wrote:LPG

...is for BBQ's or Jews

by **edfairmont4.0** » October 15th, 2008, 12:19 pm

I agree but i think LPG Injection flogs petrol.... More power- torque, MORE economy, MUCH cheaper to buy but the LPG Injection is like 4k

by **krisisdog** » October 15th, 2008, 1:01 pm

thebeast. wrote:i get like 13L/100km on the highway.. is that good or bad.
also isnt higher octane stufff ment to give it more of a boost then better milage??

Thats fuken shocking. Dont use that Octane shit either.

You should be getting less than 10L/100km when cruising at 100-120 pretty easily. I've got a 1673 cam, extractors, exhaust and 3" intake and my average is only 11.8 atm, and it sits on 7-8 on the hwy.

Get your auto serviced, engine serviced + spark plugs, maybe leads, reset ecu, fuel filter, oxy sensor..... theres more as well, but dude thats pretty bad..

by **edfairmont4.0** » October 15th, 2008, 8:28 pm

67rce wrote:
XRated wrote:350kms to a tank of V Power? Farkin' 'ell. How much does it cost you to fill up?

Umm from empty at current prices $102.
20.5L/100km FTMFL

Something wrong with dat car.....its drinking like a v12... not a v8 lol

by **BLCKED** » October 15th, 2008, 10:26 pm

my eb stroker used to sit around 20 litres per 100

did have a big cam and i never pussy footed it

got it down to around 14 on a long high way trip, bu back up into the low 20s soon as i went back to work.

by **edfairmont4.0** » October 15th, 2008, 10:35 pm

farkkkkkkkkkkkkkkkkkkkkkkk i suppose when i was running my massive cam in my last worked motor i was pulling 250-300km tops from a tank... but it was untuned so that was the whole problem..

by **67rce** » October 16th, 2008, 5:46 am

edfairmont4.0 wrote:
67rce wrote:
XRated wrote:350kms to a tank of V Power? Farkin' 'ell. How much does it cost you to fill up?

Umm from empty at current prices $102.
20.5L/100km FTMFL

Something wrong with dat car.....its drinking like a v12... not a v8 lol

yea, cold start enrichment + fucked MAF

by **edfairmont4.0** » October 16th, 2008, 6:13 am

Ahhh the perfect combo for economy!!

When i bought the ED the map sensor and oxy sensor were fucked!!! = WTF 200KM!

by **LTDHO** » October 16th, 2008, 6:33 am

edfairmont4.0 wrote:I agree but i think LPG Injection flogs petrol.... More power- torque, MORE economy, MUCH cheaper to buy but the LPG Injection is like 4k

Can you back this up?

by **thebeast.** » October 16th, 2008, 9:44 am

krisisdog wrote:
thebeast. wrote:i get like 13L/100km on the highway.. is that good or bad.
also isnt higher octane stufff ment to give it more of a boost then better milage??

Thats fuken shocking. Dont use that Octane shit either.

You should be getting less than 10L/100km when cruising at 100-120 pretty easily. I've got a 1673 cam, extractors, exhaust and 3" intake and my average is only 11.8 atm, and it sits on 7-8 on the hwy.

Get your auto serviced, engine serviced + spark plugs, maybe leads, reset ecu, fuel filter, oxy sensor..... theres more as well, but dude thats pretty bad..

when mum owned it the tranny got serviced regulary as did the engine. it has new plugs and leads. how much is a fuel filter and oxy senser?? that ecconomy was on LPG to.

by **edfairmont4.0** » October 16th, 2008, 9:03 pm

Ive used to hang around a shop that fitted LPG Injection to cabs, and they reported better economy and more power. and they got dyno'd as well gainin up to 10kw.

How could you not know that its better...

by **BLCKED** » October 16th, 2008, 9:30 pm

edfairmont4.0 wrote:Ive used to hang around a shop that fitted LPG Injection to cabs, and they reported better economy and more power. and they got dyno'd as well gainin up to 10kw.

How could you not know that its better...

my brothers BA falcon has a direct lpg injection system, very latest one, cost him 4200 to get installed has 2 fuel systems, 2 ecu's and 2 sets of injectors

when the car required more power and tourque (i.e going up a hill or towing a trailer) it will switch to petrol

by **edfairmont4.0** » October 16th, 2008, 9:36 pm

by **BLCKED** » October 16th, 2008, 9:37 pm

im saying that FUEL has more POEWER then LPG

by **edfairmont4.0** » October 16th, 2008, 9:44 pm

Well thats the first time ive head that considering lpg is rated 105 octane.

by **BLCKED** » October 16th, 2008, 9:49 pm

ok i will rephrase, fuel can generate more power then gas

by **AaronEF8** » October 16th, 2008, 10:07 pm

Well thats the first time ive head that considering lpg is rated 105 octane.

So going by that theory, Kerosene is an even better car fuel than petrol or LPG with it's 120 octane rating.

by **edfairmont4.0** » October 16th, 2008, 10:09 pm

yeah man ! its all i run

by **Frost** » October 16th, 2008, 10:20 pm

BLCKED wrote:when the car required more power and tourque (i.e going up a hill or towing a trailer) it will switch to petrol

It will sequence in the injectors to provide more power for towing/load, the biggest problem with the first lot of VSI that was released was getting the right injector size for the application, eg having the right injector size for a 4lt ford, I do recall reading in a motor magazine a while back they were having a few issues with getting larger injectors to suit VSI

LPG can be more powerful than petrol if setup right.

I know GRA were testing VSI on a Gen 3 and they got 3-5more kw out of LPG than Petrol.

It also depends on the LPG mix how much butane% to propane% is in the mixture.

by **Commando** » October 17th, 2008, 6:43 am

Good old wikipedia to the rescue - http://en.wikipedia.org/wiki/Gasoline

A high octane fuel such as Liquefied petroleum gas (LPG) has a lower energy content than lower octane gasoline, resulting in an overall lower power output at the regular compression ratio an engine ran at on gasoline. However, with an engine tuned to the use of LPG (i.e. via higher compression ratios such as 12:1 instead of 8:1), this lower power output can be overcome. This is because higher-octane fuels allow for a higher compression ratio - this means less space in a cylinder on its combustion stroke, hence a higher cylinder temperature which improves efficiency according to Carnot's theorem, along with fewer wasted hydrocarbons (therefore less pollution and wasted energy), bringing higher power levels coupled with less pollution overall because of the greater efficiency.

The main reason for the lower energy content (per litre) of LPG in comparison to gasoline is that it has a lower density. Energy content per kilogram is higher than for gasoline (higher hydrogen to carbon ratio). The weight-density of gasoline is about 740 kg/m³ (6.175 lb/US gal; 7.416 lb/imp gal).

by **LTDHO** » October 17th, 2008, 7:01 am

edfairmont4.0 wrote:Ive used to hang around a shop that fitted LPG Injection to cabs, and they reported better economy and more power. and they got dyno'd as well gainin up to 10kw.

How could you not know that its better...

Ever since the day LPG was introduced and every car that has been converted since has had less power and torque on the same combination. It's fact. So who ever told you that had their hand down their pants.

by **Gunns** » October 17th, 2008, 8:01 am

LPG liquid injection is good. LPG vapour injection is bad.

liquid injection hits the chambers at -40, colder fuel, better burn, more power.

Fu(k it just run C16

by **edfairmont4.0** » October 17th, 2008, 10:31 am

LTDHO wrote:
edfairmont4.0 wrote:Ive used to hang around a shop that fitted LPG Injection to cabs, and they reported better economy and more power. and they got dyno'd as well gainin up to 10kw.

How could you not know that its better...

Ever since the day LPG was introduced and every car that has been converted since has had less power and torque on the same combination. It's fact. So who ever told you that had their hand down their pants.

Liquid LPG injection is better. Seriously mate, if you expect more power from a restrictive venturi ring shithouse stock gas setup you have to be kidding, thats like me putting a holley 250 on my ED and expecting more power...

by **ClassicAU** » October 17th, 2008, 10:31 am

I don't know exactly what system he has, but a mate of mine just got a LPG injection system fitted to his stock BA Ghia I6. He definitely didn't loose any power, as expected with a mixer ring system. Whether he gained any power, well, not too sure. Still feels very responsive. I am just under the impression that any power he may have gained was negated by the weight of the extra tank anyway.
He was told that the car would gain a fraction more power. I would just be happy at the fact it didnt loose any, yet costs half as much to fill up now! LPG injection FTW!

by **edfairmont4.0** » October 17th, 2008, 10:31 am

Gunns wrote:LPG liquid injection is good. LPG vapour injection is bad.

liquid injection hits the chambers at -40, colder fuel, better burn, more power.

Fu(k it just run C16

yay some1 who knows.

by **BLCKED** » October 17th, 2008, 2:45 pm

thats interesting dave, never knew gas goes better on higher comp motors.

should build my stroker for gas. wonder how my cam will go with it. probably need to change it

by **Commando** » October 17th, 2008, 2:56 pm

It's also why LPG goes well with forced induction

by **FairmontXR6** » October 17th, 2008, 7:10 pm

So after all that, how'd you go at getting the figure down to a more reasonable figure like 8ltrs/100km on the highway?

by **edfairmont4.0** » October 17th, 2008, 7:57 pm

Im surprised how UN-Informed people are about gas! ah well lol

by **John** » October 20th, 2008, 6:13 pm

Tried and tested high octane petrol, mostly Caltex in a Mazda 323... Higher octane really does have a noticeable increased performance effect on the ricer. Only just got my el Fairmont but it seems higher octane fuel has no performance boost and possibly reduced economy. Slightly off topic now but has anyone experimented with acetone as an additive, was regularly using 50ml per 25-30l on the rice and it seemed to drastically decrease fuel consumption and have a much smoother start up. Havent tried on the mont yet.

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