Finally did my MPG sums

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Discussion

Chris71

Original Poster:

21,548 posts

249 months

Friday 8th June 2007
quotequote all
And over a couple of tanks it avergaes to 31.74mpg

I know that doesn't sound great for a small capacity, light(ish) car, but that includes cruising at 90 with the hood down for quite long distances (on a private stretch of autobahn naturally) and flooring it on b-roads. Also yields a tank range of well over 400 kms (probably 500 if you had a petrol can in the boot)

Not bad for a car geared for 4000rpm at 70mph smile

Kinky

39,800 posts

276 months

Friday 8th June 2007
quotequote all
Is that the 1.8?

I struggle to get over 30 MPG - usually just below that frown

ETA: I've jsut remembered my last 2 tanks were 30.94 and 30.58 respectively. And that's 50% motorway and 50% A/B roads - with the roof down when i can.


K

Edited by Kinky on Friday 8th June 13:11

kambites

68,437 posts

228 months

Friday 8th June 2007
quotequote all
Are they really that bad?? Glad I decided to buy an Elise rather than an MX5 then biggrin

getmecoat

although it'll take a few miles to make up the difference in purchase cost

Chris71

Original Poster:

21,548 posts

249 months

Friday 8th June 2007
quotequote all
Like you say - if you'd care to give the extra £5k (minimum) I'd have neede for an elise I'd have happily got one instead biggrin

That is being driven quite determinedly and virtually always with the roof down.

It's a 1.8 eunos and it's the RS-ltd so it has a lowered FDR.

redgriff500

27,665 posts

270 months

Friday 8th June 2007
quotequote all
Giving mine 'death' everywhere, (pre SC) I averaged 23mpg so you guys aren't trying hard enough.

Chris71

Original Poster:

21,548 posts

249 months

Saturday 9th June 2007
quotequote all
Mine gets used fairly enthusiastically - regulary sees over the ton (on a track of courseofficer) and I nail it whenever I get the chance, just about always with the hood down. It's unmodified though and I usually drive one-up.

franv8

2,212 posts

245 months

Saturday 9th June 2007
quotequote all
About 27mpg for me. In a 1.6 too.

Combover

3,009 posts

234 months

Sunday 10th June 2007
quotequote all
redgriff500 said:
Giving mine 'death' everywhere, (pre SC) I averaged 23mpg so you guys aren't trying hard enough.
I sometimes manage less than that. I only keep mine to thrash it. AND I don't go above 70 so it aint aerodynamics!

redgriff500

27,665 posts

270 months

Sunday 10th June 2007
quotequote all
On track I get 8mpg now I'm SC'd !


franv8

2,212 posts

245 months

Sunday 10th June 2007
quotequote all
Thinking about it - despite how hard it is/isn't driven - I'd still really like more fuel economy!

Combover

3,009 posts

234 months

Sunday 10th June 2007
quotequote all
redgriff500 said:
On track I get 8mpg now I'm SC'd !
Good man!

Chris71

Original Poster:

21,548 posts

249 months

Sunday 10th June 2007
quotequote all
Don't understand why a car that light with a relatively low power output should be doing those sorts of figures in standard trim? (remaps etc excluded) Bare in mind, a sympathetically driven Caterham does over 30mpg and you can get 40 out of an Elise, can't see why a '5 would be doing low 20's unless you live somewhere the roads are much more fun than here. Tend to keep my foot in until traffic, lack of traction or the possibility of 9 points deters me.

A mate of mine reckons he gets a steady 50mpg from his supermini that only drops to 45mpg or so even when redlined everywhere. That weighs a comparable ammount to a mk1 MX5 and the C of D is probably about the same if not better than the roadster by the time you've taken the hood down.


Combover

3,009 posts

234 months

Sunday 10th June 2007
quotequote all
The engine in the car is actually quite old, as used in the 323.

With the roof down, the aerodynamics are poor. With the pop-up lights, even worse.

I think the main reason though is that you need to rev it to get the power out of it...and it's bloody good fun when you do!

GHW

1,294 posts

228 months

Monday 11th June 2007
quotequote all
My bog-standard 1.8 manages low-to-mid 30s MPG, and only drops a wee bit if I'm thrashing it.

The fuel economy does drop massively if I only do shorter journeys though, so I assume the warm-up cycle is horrendously rich.

Chris71

Original Poster:

21,548 posts

249 months

Monday 11th June 2007
quotequote all
Combover said:
The engine in the car is actually quite old, as used in the 323.

With the roof down, the aerodynamics are poor. With the pop-up lights, even worse.

I think the main reason though is that you need to rev it to get the power out of it...and it's bloody good fun when you do!
Oh I agree. Quite happy with mine, just don't understand why unmodified cars would be doing significantly less.

redgriff500

27,665 posts

270 months

Monday 11th June 2007
quotequote all
In std trim they are both uneconomical and poor power... I mean 115bhp from a 16v 1.6 when the 205 GTi made that from an 8v !

Just a crappy design I guess.

Thankfully they are very tough and take double the std output without a problem.

GHW

1,294 posts

228 months

Monday 11th June 2007
quotequote all
Another thing to remember is the low state of tune as standard means they're massively understressed engines and will run on the weakest piss-poor petrol in the world.

Which for us means we can spend all our money slapping all sorts of forced induction on them without worrying about beefing up the insides (which is something you definitely don't want to do with a standard 205 GTi engine yikes )

Chris71

Original Poster:

21,548 posts

249 months

Monday 11th June 2007
quotequote all
I agree. Much the same as the Elise comment, I'll gladly bolt on a supercharger, as long as you're paying biggrin

Edited by Chris71 on Monday 11th June 13:14

Kinky

39,800 posts

276 months

Monday 11th June 2007
quotequote all
I'm quite curious how some folks are getting low 30s.

I've got to fill up tomorrow, so I'm going to try driving on the next tankfull, without going OVER 4k :shock:

Going to be hard - but all in the name of science you understand hehe

Fortunately there's no local runs over the next few days!

K

Chris71

Original Poster:

21,548 posts

249 months

Tuesday 12th June 2007
quotequote all
Mine sees 7000rpm on about 25% it's gearchanges. I don't rag it if I'm stuck behind someone or it's just a straight road, but on fun stuff it gets plenty of excercise. Usually with the hood down.

I'm more shocked how people get less with a standard car?

Does the RS have any headwork? Maybe it's more efficient.