Fuel consumption

ironandcopper said:
24MPG!! Now that's pretty awesome.. Does/did your 3500S have the original 4 speed, or a 5 speed LT77 or equivalent?

....I guess having fiberglass panels might help fuel economy, did you put the panels on to make the car lighter and more nimble? Or were they as a result of discoveries made whilst prodding with a screw driver? :?

.....I've noticed fuelly on a few other posts before, but didn't know what it was.. Is it an app? Because I couldn't find it in the android app store..

The car has its original 4 speed- but does have Megasquirt driven ignition, which uses modern coil packs, much better than a dizzy!

Fibreglass was unfortunately found with a screwdriver - it was a previous owners attempts at repairing large structurally important parts of the car, I am slowly replacing it all with steel - almost there now! (I hope).

Fuelly is on google play, try another search- as Cooper says you need to register on the site to log fuel-ups. Beware though, it can get addictive in a weird way! :D
 
On highway running I used to get 26.9 MPG in my auto at around 60 to 70 MPH measured on a 1290KM journey back in 1988 :mrgreen: Round town not so much around 22 to 24 depending on driving style.

P6's are fiendishly light cars so you don't really need fiber glass, 1260 or 1300 KG by modern standars is only a small sedan car weight or a 3 dr 5 dr car.

PS don't look at the current fuelly reading as something need tuning in the Weber Carb currently fitted to it.

Graeme
 
The best fuel consumption that my Rover delivered with the original 10.5 : 1 engine was 27.2 mpg. The next best was 26.8 mpg. Usually for country driving, consumption was in the 23 to 25 mpg range.

With the 4.6 litre engine, a touch over 30 mpg has been achieved on more than one occasion, and on many occasions over 26 mpg.

Ron.
 
cooper1203 said:
if u click on quagmires "fuley"
badge/pic it takes u to the website the u can click on home and sign up I guess.... when I clicked on home i went to my profile so i guess i have already signed up
coop

I have looked at the site, but that is as far as I'm willing to go.. I already have a glove box full of receipts, and one day I will gather them all up and find a calculator.. But not today :wink:
 
ghce said:
On highway running I used to get 26.9 MPG in my auto at around 60 to 70 MPH measured on a 1290KM journey back in 1988 :mrgreen: Round town not so much around 22 to 24 depending on driving style.

P6's are fiendishly light cars so you don't really need fiber glass, 1260 or 1300 KG by modern standars is only a small sedan car weight or a 3 dr 5 dr car.

PS don't look at the current fuelly reading as something need tuning in the Weber Carb currently fitted to it.

Graeme

That's still quite a bit more than I have ever gotten.. Maybe my carbs are too rich :( - still running a pair of rebuilt HIF6s.. Though they do have one advantage over a weber 500, the way the firing order is set vs which carb feeds which cylinder, you could shut off the fuel supply to one carb and the engine would run as a V4..

My mechanic friend was toying with the idea of fitting a solenoid valve that you could activate when you don't need all eight cylinders.. Might be worth actually putting it into practice (maybe) to see what happens..

Then again, I might just bolt on a 4 barrel manifold and stick a weber 500, holly 390 or one of those fancy demon carbs with the composite body and tripple stacks 8) - then find somewhere to mount a centrifugal supercharger..

Then I will have no measurable fuel economy :roll:
 
unstable load said:
Or were they as a result of discoveries made whilst prodding with a screw driver? :?
I like that way of putting it... :D
I made a few "discoveries" on my Disco the other day.... :shock: Definitely not a pleasant feeling....

Never a pleasant feeling - but on the plus side, you did make these "discoveries", so now you can set about remedying them.. Some people I know (okay one person I know) has various Jags, MK2s, XJSs (quite a few, but they are mostly paper weights) all in various states of... ummmm... Ah.. Decay :D - you can see the rot, but if you point it out, he will claim that its just surface rust, and not to touch it :shock:

He also has a mint condition e-type, which was in similar condition, he sent it away for a "light restoration" and now only the engine, gearbox, suspension and firewall are original.. Best to tackle rust as soon as you find it..

Break out the MIG and the sheet metal :wink: - its fun! Right up until it starts raining.. :(
 
With all this talk of fuel consumption I am considering buying a new Fiat Panda Twin Air 63 odd MPG and 6 cylinders short of the Rover.......maybe the 4WD version. here in nz the standard twin air panda is selling at about NZ$14,400 or about 7000 pounds.



Graeme
 
ironandcopper said:
you could shut off the fuel supply to one carb and the engine would run as a V4..

My mechanic friend was toying with the idea of fitting a solenoid valve that you could activate when you don't need all eight cylinders.. Might be worth actually putting it into practice (maybe) to see what happens..

:roll:

I can tell you from when I have lost a coil pack (and therefore 4 cylinders) or when I have had crud block a carb that what actually happens is that you lose all power and the engine runs like a bag of spanners!

Modern cars that shut the cylinders down do funky things with valves to minimise energy losses:

http://en.wikipedia.org/wiki/Active_Fuel_Management
 
I've had the pleasure of driving a Dodge Challenger that were fitted with that kind of system, Eco mode in Chrysler parlance. If you only demanded a small amount of power from the engine, it would only fuel and run on 4 cylinders, but if you demanded more power, it would go back to 8. It was pretty much instantaneous, and gave surprisingly good fuel economy from a 5.7 litre, 345 bhp engine! It wouldn't half shift if you put your foot down, but you could almost see the fuel gauge going down...

Best hire car I've ever had! I did not want to give it back :mrgreen:
 

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The fiat twin airs are known to be poor on fuel compared to the figures... you'll be lucky to see half of what the figures claim. The reliability of auto versions is poor.
 
Yes read that in one review but diesel here in NZ is not a good option for cost reasons as the Govt charges a very high and dubious road user charge for diesel powered vehicles which originally was just used as a tax on the trucking industry but now has evolved to a great little earner for the government on private cars, makes a complete mockery of keeping the planet green.
A manual it would have to be.

Graeme
 
the standard 4 pot petrols are better on fuel than the twin air... Out cycling i detest being behind diesels... The smell is horrid. Doesnt matter how many filters they put on them british towns just stink of diesel fumes if you're near a main road. Might be a money thing for the government but probably does you the world of good in terms of air quality.
 
smokin1942 said:
OK- so where do I need to go on holiday to find a hire car like that? ?
Canada. You can also hire them in the US (along with Mustangs and Camaro's), but the Challenger we had there wasn't as high spec as the one in Canada.
 
ghce said:
Yes read that in one review but diesel here in NZ is not a good option for cost reasons as the Govt charges a very high and dubious road user charge for diesel powered vehicles which originally was just used as a tax on the trucking industry but now has evolved to a great little earner for the government on private cars, makes a complete mockery of keeping the planet green.
A manual it would have to be.

Graeme
hi I read somewhere they r planning on taxing diesels here in the uk because they release some gas that no one till now has worried about but has been known about for donkeys. just another money spinner as per litre diesels are cheaper to tax in general

coop
 
Hi, you're talking about Nitrogen oxides and particulates both of which cause respiratory problems.
But it's not solely down to diesels but petrols as well, it's the direct injection that produces most of
it. Emissions up till now have concentrated on the CO2 produced. Apparently it's killing too many
taxpayers a year.

Colin
 
hi I cant remember what it was but I seem to remember something like drivers of diesels in London would have to pay another 200 quid or something. they predicted the market for diesels would crash but I guess it hasnt yet so who knows
coop
 
cooper1203 said:
I seem to remember something like drivers of diesels in London would have to pay another 200 quid or something.

About 5 years ago I was told that if I still wanted to go out and earn a living in my truck I would have to pay £200 every day that I wanted to use it.
 
Quagmire said:
ironandcopper said:
you could shut off the fuel supply to one carb and the engine would run as a V4..

My mechanic friend was toying with the idea of fitting a solenoid valve that you could activate when you don't need all eight cylinders.. Might be worth actually putting it into practice (maybe) to see what happens..

:roll:

I can tell you from when I have lost a coil pack (and therefore 4 cylinders) or when I have had crud block a carb that what actually happens is that you lose all power and the engine runs like a bag of spanners!

Modern cars that shut the cylinders down do funky things with valves to minimise energy losses:

http://en.wikipedia.org/wiki/Active_Fuel_Management

Well that doesn't sound like a good use of time at all :| - plus the article you linked said "5.5 ~ 7.5% extra fuel economy" - you saved me from a few hours of pointless tinkering :mrgreen:
 
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