MPG on Mk 2 turbo - is it really this bad!?

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
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funky_jumper
Posts: 10
Joined: Sun May 17, 2009 1:11 pm

MPG on Mk 2 turbo - is it really this bad!?

Post by funky_jumper »

hi guys,

just wondering what everyone is getting mpg wise on a mk 2 turbo? I was told that they do about 25-30 mpg, which i now think is complete b0ll0cks! Im not too sure exactly how to work it out, but basically if i put £20 worth of petrol in (about 18 litres) i am lucky to get 80 miles out of it :? Which I think is pretty crap...

Does anyone get similar mileage? My new car is a 91, I used to own a 95 N/A which was obviously better on fuel but I didn't think the difference would be so great, especially driving around town when the turbo hardly gets used anyways.

Any help appreciated, don't get me wrong I wouldn't trade the car in for anything, I just might have to take out a loan to pay for my petrol! lol
Tiny
Posts: 3111
Joined: Fri Sep 21, 2007 7:00 pm
Location: Bordon

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Tiny »

i used to get 300-320 weekly on a rev2 tubby as my daily driver. obviously it depends on how much right foot you use but that seems low for what your getting :-k
sms14
Posts: 234
Joined: Sat Nov 08, 2008 6:44 pm
Location: Worcester

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by sms14 »

That would seem about right with mixed driving mate, bit of town, motorway and the odd blast here and there.
Should'nt have bought a turbo if your worried about fuel bills dude :lol:
Think its about £45ish too fill the tank and i usualy get 260-280 miles out of it depending how much loud pedal im using.
Mr2_NA
Posts: 973
Joined: Sat Apr 26, 2008 6:47 pm
Location: Isle of Man

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Mr2_NA »

I get about 15mpg :thumleft:

Oh, thats in an NA :shock: 8)
Ayrton
Posts: 152
Joined: Sun Nov 19, 2006 7:48 pm
Location: Newcastle upon Tyne

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Ayrton »

completely depends how you drive it.
Last time out I did a whole tank in 80 miles :shock: (but that was at Donington :) )
On the motorway get close to 300 miles to a tank.
Mixed driving is obviously somewhere in between.
RobCrezz
Posts: 1509
Joined: Mon Jul 14, 2008 10:16 am
Location: Essex

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by RobCrezz »

I managed 30mpg when doing constant 70ish before.

But you should be expecting around 20ish most of the time. Not the right car if you are worried about fuel economy. However, there could be something wrong with your car that is causing very low mpg. When did you last change your Lambda(o2) sensor?
Marf
Posts: 6728
Joined: Tue Jan 17, 2006 4:56 pm
Location: West Sussex

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Marf »

Most I've managed is 32mpg, least I've managed is 18mpg. Average is somewhere in the middle.
TubbyTwo
Posts: 574
Joined: Fri May 19, 2006 8:09 pm

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by TubbyTwo »

down to how you drive mostly.

although there are other reasons (old lambda sensor etc)

i usually get around 310 to a full tank when just cruising.

a mix of town and motorway blasting usually still returns over 250 :thumleft:
2003 Leon Cupra R, stage 2 Jabbasport remap to 280bhp

MR2 now sold :(
Turbolad
Posts: 398
Joined: Wed Dec 29, 2004 1:15 pm
Location: End of Nowhere

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Turbolad »

I usually get about 220-250 a tank with bigger injectors and 400 hp as a weekend fun car (fun = heavy foot) which incidently is about the same as I got when the car was running 280-300 hp relatively standard as a daily driver
95 rev3 btw
Matt
funky_jumper
Posts: 10
Joined: Sun May 17, 2009 1:11 pm

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by funky_jumper »

think you might be right about the lambda sensor i will have to get it checked, im pretty sure the emissions are too high on it. The car smells very petrolly if you put your foot down!

I put my foot down when i can but to be honest not all the time as i am on 30 roads a lot, so this confirms my suspicions that something is afoot! Think ill check out the lambd sensor first, cheers for the input guys...
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by bobhatton »

The ECU only works closed loop (with lambda sensor) at very small throttle openings then goes open loop.
Check for leaks around the fuel injectors if you can smell fuel.

Bob
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
crx sam
Posts: 12
Joined: Mon Jun 22, 2009 6:35 pm
Location: United Kingdom

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by crx sam »

hi mate im new here anyway i got my car from kent last week and i put £40 in her which got me back to plymouth which is about 320 miles at
around 75mph but like the others hav said you have brought a turbo car thay are not that bad on fuel as some of the other turbo cars out there
ie scooby's but yes that sounds right
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by bobhatton »

On a motorway at 70, 3000 rpm you should get 320 miles to a tank full. As soon as you go over 3000rpm the engine runs rich but does lean out again at about 85 mph. My REV1 if far better on fuel than my REV2.
Now I have a wideband fitted I will lean out the engine and change timing with my adjustable ECU.

Bob
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Martian_333
Posts: 713
Joined: Tue Feb 17, 2009 11:36 pm
Location: Midlands

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Martian_333 »

Ayrton wrote:completely depends how you drive it.
Last time out I did a whole tank in 80 miles :shock: (but that was at Donington :) )
On the motorway get close to 300 miles to a tank.
Mixed driving is obviously somewhere in between.

:lol: :lol:

80miles? lol

Best I used to get is about 240 average for about £38, yours sounds low but as everyone says, if you drive it like you stole it you better be prepared to be your fuel gauges b**ch! :lol: it will soon own you and your wallet.
Dan88
Posts: 476
Joined: Tue May 27, 2008 3:59 pm
Location: Ipswich

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by Dan88 »

think it ounds about right, i drive mine on weekends wit mixed driving, and get about 250 miles to a tank

recent journeys have been giving me about 65 miles to £15
The TVIS Kid
Posts: 475
Joined: Tue Apr 25, 2006 10:15 pm
Location: Birmingham

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by The TVIS Kid »

Round town with the occasional blast i get 25mpg but on a long run with motorways and A roads i have averaged 33mpg consitantly.

If your consumption is really bad check for error codes on the ECU. It's the only car i have ever driven wher you can actually watch the needle drop even on a very short journey.
JeffD
Posts: 3575
Joined: Sat Feb 05, 2005 8:38 pm
Location: North West

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by JeffD »

few mods and not particularly careful i get 29mpg mostly motorway driving.
charlie b mr2 rev3
Posts: 23
Joined: Tue Jan 29, 2008 4:57 pm
Location: maidstone

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by charlie b mr2 rev3 »

i get 100kms to 10 litres as a verage thats 60 miles mixed driving 330 bhp
JeffD
Posts: 3575
Joined: Sat Feb 05, 2005 8:38 pm
Location: North West

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by JeffD »

100km * 5/8 = 62.5miles

10 litres / 4.546 = 2.20gals

so mpg = 62.5/2.20 = 28.4 mpg
ancient mariner
Posts: 1793
Joined: Sun Jan 22, 2006 2:22 pm
Location: STOKE-ON-TRENT

Re: MPG on Mk 2 turbo - is it really this bad!?

Post by ancient mariner »

JeffD wrote:100km * 5/8 = 62.5miles

10 litres / 4.546 = 2.20gals

so mpg = 62.5/2.20 = 28.4 mpg

:lol:
thanks jeff,now that i can understand :roll: .paul.
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