Fuel consumption / economy report

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Originally Posted by taslucas

Dedication gas and turbo will make a heap of difference on either engine.
Two mates have the rb30 here, one is on 33's, stock carby and not in the best of tune, the other is on 35's with a holley and kept tuned beautifully. They both use a heap of fuel. I guess even on the bitumen here its all hills and corners.

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I've found the little 3 litre loves to rev and still get good mileage, I would think that being fitted with 33s would tend to make it lug and drink juice. Did either of your mates swap to a different diff ratio to compensate, Lucas?

@ Lucas as MN says as soon as you fit 285's or 33's your fuel goes skywards.
Running OE 265's will see figures like 10/100k change tyres and thats 13/100
thats on the 3ltrsTD

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Originally Posted by mudnut

I've found the little 3 litre loves to rev and still get good mileage, I would think that being fitted with 33s would tend to make it lug and drink juice. Did either of your mates swap to a different diff ratio to compensate, Lucas?

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Oh yeah, they love to rev lol. Whack some 33's on yours to see the difference, and like I said, one mate even runs 35's. Both Running standard ratios.
Lot of slippery mud here and they need to spin fast so never much low range either.

As everyone knows, driving style varies the economy... I just think that we often don't realise how different some driving styles are.

The tb48 doesn't even hit the power band until 3000rpm, peak power at 4200. I imagine the 4.2 is similar.

I got 456km out of 100lt of gas. All highway 100 - 110km/h in my 4.5l GU just under 1900 and 2100 rpm. Standard size tires and 3.9 ratio diffs. Doesn't like the hills needed to drop out of overdrive. Gas system is a direct injection.

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Originally Posted by jay see

I got 456km out of 100lt of gas. All highway 100 - 110km/h in my 4.5l GU just under 1900 and 2100 rpm. Standard size tires and 3.9 ratio diffs. Doesn't like the hills needed to drop out of overdrive. Gas system is a direct injection.

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That's impressive. Although how did you get 100L of gas? I thought the largest tank was a 155l (water volume) 90L (LPG) useable.

You can fit 120ltr tanks 100 usable Tank fits between the chassis just about 950mm from memory.
Did it with my other 4by

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Originally Posted by Agronaught

That's impressive. Although how did you get 100L of gas? I thought the largest tank was a 155l (water volume) 90L (LPG) useable.

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It's a 110 (water capacity) just kept on going till it stopped, was driving back from Mildura so I was going to need as much ad possible. The tank was completely empty before I started.

155L - 20% = 124L
110L - 20% = 88L
Unless I have it all wrong.

That should have been 115L Max.. Although if there is a 120L option I've been lied to :mad: