I am designing my fuel tank, and working out range. What I would like to know is how does the fuel consumption comare between a locost and the donor from which the engine and running gear derived.

For example, my 2.0i Sierra donor is reputed to do 28mpg, how will my creation fare? I need to do trips to Bristol (210 miles) fairly regularly and want to do it on one tank. I don't care if it only does 10mpg back lane bashing, but has anyone got any comparasons when touring?

My 16v Vauxhall powered car will do approx 25ish to the gallon with steady motorway use.
And is 'kin terrible around the lanes (fuel wise-but who cares.... )

My 2L pinto averages about 22 on the mix of driving i do in it, i live in the sticks so to get to a main road i need to bash some lanes!

On my drive to and from Stoneleigh this year i got 27.5mpg that was mostly motorway, i was only going a max of 70 as a friend was taking his recently aquired 3 wheeler for its debut show and was following me towing a trailer! My car is in standard tune and is in need of a rolling road session so i may see a slight increase in that figure once everything is set up properly

Colin

I thought the consumption would have been lighter considering the weight difference - looks like I need a bigger tank!

I do not know what an escort with a 1700 xflow with twin 40 on would do to the gallon

but in my locost its about 15-20 mpg
and i can empty the5 gallon tank in one hour no problem
on the good side, you should hear the noise of four fuel taps sucking air at 6000 rpm

Mark,

My 2.0i pintoed Indy averaged 28mpg for the first 1000 miles. That was with the modified EFI that we've discussed previously and probably a fairly typical mix of thrash / cruise driving.

Cheers,

Colin

Colin,
It seems that a locost will do about the same as a donor, I think mainly to the temptation to USE WHAT YOU GOT!

Mark

on my recent trip to donny i got about 40mpg A roads all the way,but as chrisw says i never go above 60

what everyone is trying to say is, it depends on how the weld spletter, fibreglass, filler and oil has added to the weight of your right foot