MPG??

[D-M93E21]

what you getting MPG and what for engine is it ???

[Duracel79]

Not great:

S54 currently setup rich for track work
mixed driving (some motorway and some sillyness) 20mpg.

I am booked in for a remap to get the part throttle & cruising setup better before my Europe trip.

Nearly forgot to say it did 7.1 mpg on the last trackday

Ben

[TopCat]

20 gallons last just over an hour race

c 4,5 mpg

(but that is a bent 8 with c 600 bhp)

oh do you mean BMW engines...........................

apologies!!

ps a BDG in same race in Chevron does no better than 7 mpg

[Duracel79]

On a more sensible note. My dad owned a 323i from new and drove 279k miles in it.

Generally averaging 31mpg, mostly motorway driving, just over 300 miles to a tank (45litres).

First 100k miles the car was standard.
the last 179k muiles was after rebuilding as a 2.7.

Ben

[nas80]

170 miles took just under half a tank on the motorway. Going mostly 80/90mph.

2.8 24v with e36 m3 box and a 3.07 so engine is sitting between 3-4k at those speeds as its a 1-1 ratio in 5th.

It works out at 30 or 35 mpg not bad seeing as I did teach several people a lesson too.

[problemchild75]

Seriously! most I've ever had was 140 miles out of a tank

[e21-Mark]

Managed well over 40mpg in my old car on a run to Cornwall. Used to average 35-40 in usual daily driving.

[petroscf]

Best I've managed so far with the weber is a 33.5 mpg, going on motorway with max 90-100 kph (=8.5 lt/100km) which is a bit better than the M10B16 with solex carb performance data from factory (9.0 lt/100 km)
And this with much more fat tyres/wheels than the factory ones, but also with 5 speed eco getrag instead of the factory's 4speed.

However, playing "catch me if you can" , I have reached all the numbers down to 14 mpg

[gymbabwae]

I've got the 1.6 with a weber. Never managed more than 250 miles from a tank.Usually 230 miles, with spirited town driving being most of the driving I do.

[sleepy]

When I was using my car as daily the most I seemed to be able to get was 22mpg that's with a 320/6 with weber.
I had one of those apps that calculated everything and I could record everything...I could never get it higher, I'm thinking I may have had an issue now seeing everyone else's mpg?

[Duracel79]

When I was using my car as daily the most I seemed to be able to get was 22mpg that's with a 320/6 with weber.
I had one of those apps that calculated everything and I could record everything...I could never get it higher, I'm thinking I may have had an issue now seeing everyone else's mpg?

Sounds about right with the auto box. that kills the economy.

ben

[nas80]

Seriously! most I've ever had was 140 miles out of a tank

1. you drive like your being chased by a transvestite wielding a sharpened stiletto in her hand
2. you have a 3.91 diff on an m20 box
3. I don't think MPG is the top of your list or being sensible when your in your car

you know this thread has got me thinking, i could easily fit the s52/m54 6 speed box its the same ratios with a 1:1 in 4th but has an overdrive 0.83 ratio for sixth gear. That way id be able to get decent economy at higher speeds.

[luke]

Best from my M30B35 = 30mpg highway. Average city = 18 - 20 mpg.

Strangely the M20B20 used to get similar city mpg as an automatic.

The old e21 323i manual with L-Jet used to average 26mpg city. Highway was still around 30mpg, but I only had a 4 speed box, so cruising revs were fairly high.