General Abarth Engine MPG

[volxstu]

I still owe my parents £800 from the changeover of cars so i thought for the next month or so that i would try and eco drive to save as much cash as possible/
Too my surprise i managed to get 37.4 mpg on the first 4 miles out of thanet and 29.3 mpg on the total 21.6 mile journey.
Most of my jorney was around 80mph bar one slip up due to some idiot coming up my arse whilst i was over taking.

Needless to say i was very pleased at what this engine can do if need be.

 

[Andymacselespeed]

Well done!

I only have a journey of maybe 5 miles to work, from cold, to work, that journey runs to about 20mpg! Longer runs get better, but I have never had higher than 25mpg combined on a tank full (Lasts maybe 3 weeks, used every day though)

 

[volxstu]

I am 2 days in and still at around 26.5 MPG with some excitable driving in there too.
Im hoping that a remap will improve that slightly too.

 

[Andymacselespeed]

Ooooo tell me more of this remap! Who, where, what gains and what price?

I'm just resigned to the fact that my car drinks fuel, but on a custom stainless exhaust it just seems wrong not to! Strange enough, in car 'puter shows better economy at 85 ish than 70. Seems ideal cruise is with engine at about 3700rpm, makes sense I guess, just into interesting cam territory.

 

[volxstu]

Get a remap anywhere im undecided as to where im going to get it done.
After i did it to my last car (1.6) my fuel economy went from around 25mpg on average to 28mpg. Thats with a stainless exhaust and induction kit.
Before i sold it, being a little older and less inclined to accelerate up too the car ahead and brake, i was geting about 32mpg on average.

 

[jackson74]

Ooooo tell me more of this remap! Who, where, what gains and what price?

I'm just resigned to the fact that my car drinks fuel, but on a custom stainless exhaust it just seems wrong not to! Strange enough, in car 'puter shows better economy at 85 ish than 70. Seems ideal cruise is with engine at about 3700rpm, makes sense I guess, just into interesting cam territory.

Ive noticed this too. its feels almost like the 2.4 has some kind of "power cam" set up.
Once you get to 70mph the engine feels like its labouring a bit... but push on past 70 and everything quietens down and the engine seems to run smoother.

 

[volxstu]

There are many reasons why a car will have a non smooth acceleration. My 1.6 was amusing, after about 4k revs it just used to shoot into action like turbo boost lol.
I just presumes it was a dirty TB.

 

[Yellow Peril]

Ive noticed this too. its feels almost like the 2.4 has some kind of "power cam" set up.
Once you get to 70mph the engine feels like its labouring a bit... but push on past 70 and everything quietens down and the engine seems to run smoother.

Probably the variator doing its thing to the valve timing...

 

[danhans115]

Yeah it definately is, also when the variator alters the phase slightly the inlet manifold changes the path air takes (long/short) to produce more torque.

 

[jackson74]

I see, so basically you're saying it has variable valve timing?
Wasn't aware of that.

 

[volxstu]

Is that like a vtech.

 

[Yellow Peril]

Is that like a vtech.

A bit. Though I think the Honda VTech system has a separate camshaft that only comes into play at high revs. Whereas the FIAT system alters the relative position of the camshaft (and the inlet manifold profile).

 

[volxstu]

Ahh you mean the DOHC. I thought that the Vtech part was just refering to the Variable Valve Timing.
Look at me pretending that i know what im on about

 

[danhans115]

The variator solenoid allows oil to flow through the inlet cam to the variator and when it does the phase advances slightly. At the same time I think its something vacuum related that changes the restricted inlet to a larger one as you hit a certain RPM and then disables it later. There are some good illustations on eper/elearn that show the two routes.

My variator was starved of oil big time a few months ago due to a blockage. which completely shredded a cambelt due to lateral play on the inlet pulley.. £700 bill so anyone with one keep an eye on your oil. People say they just get noisy but when the spring or splines inside go, it can cause a lot of damage and I was quite lucky.

After the repair I am getting much better MPG, a bit of pootling round leeds last week saw me get 26mpg, whereas before I was in the low 20's..

 

[Most Easterly Pandas]

I tell you, if I ever get an Abarth that'll be wacked straight onto LPG!

Probably pay for itself fairly quickly with some of you also.

 

[volxstu]

LPG Is false economy, the Gov no longer support it and its going to end up a similar price to petrol and eventually fizzle out. Probably long before it pays for its self, if you were too add the tank today.
Also i have more important things to cram the boot with :devil:

 

[spyshagg]

I'm getting 27 mpg on the last 4 tanks.

Although it must be higher because the computer adds 2km two out of four times I start the engine, just like that. So every tank I end up with ~25km I didn't do.


anyway, I drive 8 miles from home to work two times per day, at speeds between 37mph and 52mph with lots and lots of corners and ups and downs.

The abarth heats up pretty quicly. Water is on the spot within 2 miles. Oil within 4 miles.

 

[Most Easterly Pandas]

LPG Is false economy, the Gov no longer support it and its going to end up a similar price to petrol and eventually fizzle out. Probably long before it pays for its self, if you were too add the tank today.
Also i have more important things to cram the boot with :devil:

All a matter of opinion. My system in my 1.4 has already nearly paid for itself

As for wanting to cram other things rather than a tank into your spare wheel well, I couldn't possibly comment.

Government do still support it (RFL relief, and congestion zone exemption for certain vehicls).

And the likly hood of it becomeing a similar price to petrol isn't that likly in the near future as its a by-product of crude oil refinery.

Only advantag I can see you having running an abarth on Petrol, is a longer range on your tank.