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Author Topic: fuel / gas usage  (Read 9429 times)

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Offline johnb44

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fuel / gas usage
« on: October 21, 2014, 06:28:31 PM »
just wondering what sort of mileage other bedi owners are getting as mine is pretty high for a 253 v8 @ 3km per litre  :'(

Offline Bean

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Re: fuel / gas usage
« Reply #1 on: October 21, 2014, 11:41:56 PM »
I was worried as to what mine would be once she was on the  road but I was pleasantly surprised
Running a 5 liter V8 EFI commodore motor through a 700 turbo 4 speed box into a 9' diff with a ratio of 2.7,I'm getting around 14-15 liters per 100 (6-7 km/liter) @ 100km/h
Revs are 1750 rpm and she just purrs along , I have no doubt that if I were to cane it it would drop to silly numbers.
There is enough grunt in her to get Mr plod seriously angry.

Offline Marishka

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Re: fuel / gas usage
« Reply #2 on: October 22, 2014, 12:12:38 AM »
I get 82kms per $7.59
In my green n white poptop
I filled up at blackheath the other night and then filled up
Again when I got home.
Took $7.59 to top it back up to full.

Offline Dano

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Re: fuel / gas usage
« Reply #3 on: October 22, 2014, 01:06:04 AM »
I was doing a GPS  / milage for Gordon (I think) but that came to a tapping/rattling halt ...haha
will be checking the numbers when we return
Can I go play now...?

Offline SkippyThBushKangeroo

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Re: fuel / gas usage
« Reply #4 on: October 22, 2014, 02:32:40 AM »
hi guys ... aaah internet properly again...  ;) miss me??  ;)   "ol futile", has three gas tanks (dedicated )  an 85, 70 an 55 lt i think...   ::) an get round about 900 clicks  at 100km at 2700 revs out of them combined    so round 4.5 km per lt  bump her up to 110km , different story. much thirstier n 3100 revs. n towing ha  :P economy out the window.  :'(  what gas system do u run john? as in carbie mixer, the 253 in mine runs a newgen mixer  on top , looks like a overlarge air filter if u know what imean... there a good economical mixer  i found for a V8 
« Last Edit: October 22, 2014, 02:35:23 AM by SkippyThBushKangeroo »
I,d rather sell my...mum,....than my bedford!!

Offline Gordon

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Re: fuel / gas usage
« Reply #5 on: October 22, 2014, 05:13:38 AM »
So most of you know by now that my van gets pretty poor gas mileage. On the recent Brits at the Beach trip we averaged 22 litres per 100km, that works back to 4.5 kilometers per litre. I must admit that I was giving it the boot at times. I'm running a Chev 350 in front of a TH350 auto box and a 3.0 diff ratio. She does 2700 RPM at 100km per hour. My carb is a Quickfuel 580CFM with vacuum secondaries.

Stu has recently converted his van from a 3.51 diff ratio to 3.0 and on a recent round trip of about 240km he returned an average fuel consumption of 10.8 litres per 100km or 9.25 km to a litre. He admits that his top speed is around 90km per hour. He is running a Ford 302 in front of a C4 3 speed and a Holley two barrel carbie. Pretty good consumption considering that our vans are as aerodynamic as a house brick.
Healthy eating doesn't make you live longer. It just feels longer

Offline Marishka

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Re: fuel / gas usage
« Reply #6 on: October 22, 2014, 07:54:11 AM »
Thats the beauty if a V8 Gordon,that extra power has a price.
But ive noticed with  my V8,s that if i drive them like an old man
They get pretty good fuel economy
As long as the ratio,s and other ingredients are working together,
My green poptop is a worn out old 202 , and im going a V8 as soon as  possible,
Buga the economy i want the power,  :)
In my parts shed ive got
 a std black 202, with a trimatic,
worked blue 202, with a 4 speed,
Worked 186, with a 4 speed,
And a
Worked red 202, with a 4 speed,

An old school engineer/mechanic was telling me the other day
That a 6 can go just as good as a V8,
Im not exactly sure if its true,
But if it is im seriously thinking i might stay 6 cylinder to save the floor space and
Save the engineers fee,s.
Ive gotta have a bit more of a chat with that fellow.


« Last Edit: October 22, 2014, 07:56:11 AM by Marishka »

Offline Gordon

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Re: fuel / gas usage
« Reply #7 on: October 22, 2014, 10:48:45 AM »
You can't beat the sound of a rumbling V8 Marty and compared to my original Vauxhall 4 cylinder engine the V8 gives me a level of driveability and reliability that I could never get out of the 4 cylinder.

Its quite clear from looking at my exhaust outlet that my van is running overly rich at the moment. I've been to see a few local V8 specialists seeking advice, but all they want to do is charge me heaps to put it back on a dyno. I've now ordered a good old Gunson colourtune kit from the UK and am going to play around with my jetting and mixtures. I don't reckon I can make it any worse than it is and I'll hopefully get to learn a bit about carbie setups at the same time.

Healthy eating doesn't make you live longer. It just feels longer

Offline johnb44

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Re: fuel / gas usage
« Reply #8 on: October 22, 2014, 06:37:29 PM »
thanks guys I can go back to the mechanic now with some more info , as im debating on how to build up my 308 as ill possably go injection or straight gas if I can find a few gas tanks to go where the fuel tank is

currently running the 253 with 2 barrel Stromberg carbie on fuel and gas , with the 15 inch wheels 100kph = 2200 revs so that can improve when I fit the turbo 700  :)

Offline rumax

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Re: fuel / gas usage
« Reply #9 on: October 22, 2014, 08:43:41 PM »
Being on  "club rego" I have to be on petrol (and as left factory). On a recent long trip, I averaged 18 MPG (or 6.25 km/l) with the 186 and sitting on 80k ... And I am sure there are some "engine issues" I need to deal with, like a cam or lifters that are "stuffed".
3.5 diff and about 2300 rpm..

Towing a car trailer (returning with my red tray top on the trailer  ;D ;D ;D) between Melbourne/Adelaide, fuel usage was between 3.5 and 5.6 k per l

And I too need a rolling road to tune my beast. Thinking of just replacing the cam & lifters beforehand, as may cost less than time on the dyno.....

As for 6 vrs V8.... Marty, cut the floor.....

Russell
Workin for the weekend!

 

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