V8 P6 Fuel Economy

C

casper171072

New Member
what sort of fuel economy should I be getting from my 1972 P^ 3500, (auto) what do you guys gets as a general, yet to work mime out but I think its pretty awful :(
 
There is a recent thread over in the Lounge section titled MPG that discusses this very topic... :wink:

Ron.
 
casper171072 said:
what sort of fuel economy should I be getting from my 1972 P^ 3500, (auto) what do you guys gets as a general, yet to work mime out but I think its pretty awful :(
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If you've yet to work it out, then how do you know it's pretty awful?
 
Worth knowing what it is as if its worse than it should be then by fixing whatever is causing it will save you money!
 
Thanks found that original post now had a good read. Mine seems to be running about 16 which I guess is worse than it should be. I know the engine is in rude health, never uses oil, burns smoke rattles and it exceptionally quiet so I will have to work my way through the ignition system I guess and read some other threads on how to improve things.
 
rockdemon said:
If you do a lot of stop start driving that's entirely possible!


Rich
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One of the primary determinants of fuel consumption is age! The younger the drivers age the greater the fuel consumption :LOL:

Graeme
 
P6b's arnt that bad normally, I use use my GTO and I can see the gauge dropping as I drive :( at least with the Rover when I put 40 bux in it the gauge moves to over half way (its a feel good illusion) and seem to take quite a while to go down to the empty mark so for my 40 dollars I can get a few days happy driving.

Graeme
 
A range of 15 to 27mpg seems huge for a V8 Rover (Maybe a 3500S with a 5 speed?). I have had loads of these cars in the past and usually I get between 16 and 20mpg. I recently amazingly got 23mpg on the way back from Beamish, but this was 60mph and all on the motorway so this is the absolute best I ever expect to see. It probably sways the figures a bit. I consider 20mpg to be a good result generally. If you weaken the mixture of course, then you can get the economy up to 30mpg if you want to, but you will eventually have serious mechanical engine trouble!
 
casper171072 said:
god that must make me 21 years old again!. May Ill leave it as it is then, you think I could get it down to 12mpg :D
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I would stick it on ebay if I were you 8)

Richard
 
my godamn jaguar xjr supercharged mule is horrendous on fuel
20 on a long motorway run at 80 mph
around 11 mpg round town

the v12 xjs jag is better around 22 mpg,,and thats an old car-
 
quattro said:
casper171072 said:
god that must make me 21 years old again!. May Ill leave it as it is then, you think I could get it down to 12mpg :D
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I would stick it on ebay if I were you 8)

Richard
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I noticed that too!! :wink:
 
Used to get 26 to 27 on a trip when it was on SU carbs, havent checked since the Weber conversion.

Graeme
 
RPi advertise the Weber 500 as carb that makes significant fuel savings cant remember the figure they quoted but was more than 10% how ever take that with a grain of salt, what I beleive is that a well set up Weber is probably very good but that most SU as they sit on most cars are probably in various states of tune ranging from bloody awfull to very good due to wear and level of competence of the tuner. Certainly the Weber has a huge performance benefit over the SU in terms of drivability and it does transform your driving experience and I must say the fuel consumption has seemed to improved though this may be all in my enfeebled mind :wink: as I havent done fuel economy run since about 1989 :roll:

Graeme
 
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