Buy a Griff for great fuel consumption!

Buy a Griff for great fuel consumption!

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Discussion

Prince_Charming

Original Poster:

2,646 posts

276 months

Sunday 15th December 2002
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Just did a 150 mile return journey in the piddling rain down to Henley-on-Thames for lunch with my girlfriend and her parents - as I wasn't in a hurry, and the weather was so poor I decided to try for minimum fuel consumption and basically went at 2k revs in fifth the whole way. By the time I got back, the needle was only slightly past the 3/4 tick point. Not bad! I guess the guage will be mega-nonlinear now and zip down to zero in 50 miles. This car is the best, fast or slow!

Oh and the windscreen wipers move and squeak in perfect synchronisation with The Scientist by Coldplay. Class!

becky

85 posts

274 months

Sunday 15th December 2002
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Glad to hear that your'e so pleased with your new Griff. I too have tried the same trick and managed to get around 25 / 26 mpg on a motorway by keeping the sensible side of the speed limit. Before anyone says 'what a wuss', the car is brilliant and love it to bits but you tend to see the potential performance in a slightly different way when you have your young daughter in the car. At the eopposite end of the scale (or should that be gauge)please don't fall into the trap that I did and assume there's plenty in the tank when i fact there isn't. The gauge seems to be a optimistic and you may find that 'nearly empty' is a bit beyond that!!!!!

donatien

1,113 posts

265 months

Sunday 15th December 2002
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I've seen a wide variety on mine. I get about 25 on a sensible long run but have seen it drop to 9 on track days. That is some way of a landmark as the only other car I owned to drop under 10 was a Ferrari Daytona; but that took little effort to make it drink

Edited to add - the fuel gauge is pretty close, if it's low it's low. It seems spot on. Maybe I got lucky

>> Edited by donatien on Sunday 15th December 19:03

davidd

6,529 posts

291 months

Monday 16th December 2002
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Ha it may be showing 3/4 now but just you wait....It will drop like a stone. I think the best I ever got was about 260 or 270 on a tank.

Glad you like tyhe windscreen wiper squeak mod

D.

kevinday

12,301 posts

287 months

Monday 16th December 2002
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I have heard of motorway mileage getting more than 30mpg, which is of course possible. You are moving 1100kg of car with minimal acceleration therefore the engine is barely working.

madasahatter

374 posts

274 months

Monday 16th December 2002
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Out of interest,what speed is a Griff 500 doing at 2krpm in top?

donatien

1,113 posts

265 months

Monday 16th December 2002
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madasahatter said: Out of interest,what speed is a Griff 500 doing at 2krpm in top?


3,000 is a shade over 80 so 2,000 around 55 I would guess.

Prince_Charming

Original Poster:

2,646 posts

276 months

Monday 16th December 2002
quotequote all
Yeah it was around 60mph I think. Have brought the car into work today and the boss was mightily impressed - did the old "We're paying you too much" line, but he wants a spin in it (not literally), so will be happy to oblige.

Keep starting it up for people and giving it some revs. Heh heh!

plipton

1,302 posts

265 months

Monday 16th December 2002
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Just did a 150 mile return journey in the piddling rain down to Henley-on-Thames for lunch with my girlfriend and her parents


Blimey - boot's bigger than my Chimp's !!!

DIGGA

41,355 posts

290 months

Monday 16th December 2002
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I think the fact that Griffs can be so frugal is a well kept secret.

I'm always amazed when I've been on long trips in Europe, where the speed is well into three figures, that my car has never dropped below 20mpg overall.

plipton

1,302 posts

265 months

Monday 16th December 2002
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becky said:The gauge seems to be a optimistic and you may find that 'nearly empty' is a bit beyond that!!!!!

This is a real pain in the ar$£. At the weekend (with about 1/2 inch of fuel in the tank) I removed the sender (5 posi's) and did a bit of judcious "tweaking" of the float arm.

I swung the float through its full range and found that empty actually means the needle is on the lower dot on the fuel gauge.

Having measured the tank depth (37cm)I bent the arm so that it could swing further round the rheostat and actually read zero on the gauge with about 1 inch of fuel (about 3/4 of a gallon) left - leaving a few miles to fill up. at the other end of the scale I had to balance this by showing full when the tank was full.

In short, the part of the arm when empty which is horizontal is now about 1/2 the length it was to achieve full, and the lower stop was bent to allow the gauge to read empty.

So far, at both full and empty it seems OK. I will see what happens in between this week !!!!


>> Edited by plipton on Monday 16th December 16:34

shpub

8,507 posts

279 months

Monday 16th December 2002
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Keep starting it up for people and giving it some revs. Heh heh!


Unless the engine and oil is warm, this practice will knacker the engine (cams in particular) quicker than anything else....

Kepp the fuel economy going as you will need the money for a new cam.




>> Edited by shpub on Monday 16th December 18:45

simpo one

87,097 posts

272 months

Tuesday 17th December 2002
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Some years ago I had a 4.0 Jaguar. The trip computer included a live mpg readout. Sticking it in 2 and putting my foot down gave 4 mpg...

(Then I put it into 'R' for 'Race' and it broke)

beano1197

20,854 posts

282 months

Tuesday 17th December 2002
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....and they say British cars are unreliable, eh?