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Technical 1.4 --> 0.9 Engine

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Technical 1.4 --> 0.9 Engine

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USFiatGuy

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Hello everyone!

I'm a very new person to this forum, but I thought I would try here first instead of the US forums since everyone else in the world gets to enjoy all the engines Fiat has to offer.

So long story short, I commute over 100 miles each day (typical US uber rural commute), and I'm looking to get the most gas mileage I can. I've read that the 0.9 twinair engine can get in the 70 mpg range, which is about double what I can do now with some how the same power...

So my question is... Has anyone done this before? I've found a couple on Italy's ebay and other sources that come with almost everything for ~1500-1700 euros. I just wonder how involved of a swap it would be, I would think not too bad.

I also wonder, and expect, it's the same transmission. I would bet the axles are different, and the wiring harness, but that's about all I can think of.

Thoughts?

About my car: 2012 Fiat 500 1.4L 155,000 miles
completely new suspension, ball joints, bearings and all.

Thanks everyone!
 
I don't think anyone gets near the quoted millage from the twin air engine mists people get in the mid 40s that I've seen or low 50s on long steady drive's

Also the mpg figures may differ if your mpg is based off a USA gallon as it's different the a gallon measurement used over here
 
Huh, never knew they were different measurements. I do know that in the US we get the horribly low octane compared to Europe (87-93 Octane) so that could also bring it down even more. Thanks for your response Chris!

Well it's already not looking like it will be worth it, especially with around the same mileage I'm getting now, but I do want to hear more before ruling anything out, since it would be a unique swap to a US 500.

Any more thoughts are definitely welcome!
 
USFiatGuy said:
Huh, never knew they were different measurements. I do know that in the US we get the horribly low octane compared to Europe (87-93 Octane) so that could also bring it down even more. Thanks for your response Chris!

Well it's already not looking like it will be worth it, especially with around the same mileage I'm getting now, but I do want to hear more before ruling anything out, since it would be a unique swap to a US 500.

Any more thoughts are definitely welcome!
Click to expand...
I don't know if the Speedo are set differently on the us to eu version
But a us gallon is 4 quarts (a measurement don't even used over here) or around 3.7litres uk/EU gallons are about 4.5 Litres along with most of the rest of the world
 
That's right; an Imperial gallon is 160 fl/oz while the US gallon is no more than 140 fl/oz.

My Twinair is run strictly on 98RON fuel but my consumption rate is regularly less than 40MPG. This is partly due to its suburban lifestyle of short trips and more than partly due to the Twinair being such a fun little engine to drive - I don't drive for economy and I just can't help myself when I hear it growl.:eek:

I really don't think the swap would pay for itself let alone save you money.
 
I would guess you need to swap a number of ECUs with the engine and new SW, so probably a major rebuild of the car. Probably easier to change the car.
If you are looking for maximum mpg, you should go for a Diesel.
 
I don't think the US got the diesel.
The 500 was heavily modified for the US market and they engines were different as well.

Think they were based on the 1.4 Multiair units.
They sold a 500 Turbo with 135hp and Sport with around 101hp.


The 500 turbo isn't to be confused with the Abarth, they sold the Abarth with Multiair turbo power as well.


Lately they've introduced Pop and Lounge, but again with 1.4 Multiair power.

I think we can all safely say that you'd struggle to hit 70mpg in a Twinair even if you throw it off a cliff!

The 500e is available in some US states, what is the range of one of them?
 
Piccolo Nero e Bella said:
That's right; an Imperial gallon is 160 fl/oz while the US gallon is no more than 140 fl/oz.

My Twinair is run strictly on 98RON fuel but my consumption rate is regularly less than 40MPG. This is partly due to its suburban lifestyle of short trips and more than partly due to the Twinair being such a fun little engine to drive - I don't drive for economy and I just can't help myself when I hear it growl.:eek:

I really don't think the swap would pay for itself let alone save you money.
Click to expand...

chris3234 said:
I don't think anyone gets near the quoted millage from the twin air engine mists people get in the mid 40s that I've seen or low 50s on long steady drive's

Also the mpg figures may differ if your mpg is based off a USA gallon as it's different the a gallon measurement used over here
Click to expand...

I drive 90% highways and the US 1.4L n/a is rated at 30 city and 38 highway (can easily get 43-45 with lower speed limits near capitals). I get around 36 mpg and I'm usually going along at a good rate of speed due to the nice speed limits we have on some highways (80mph speed limit).

So really I'd be getting like 40 with the twinair engine or even the same as now.


Goudrons said:
I don't think the US got the diesel.
The 500 was heavily modified for the US market and they engines were different as well.

Think they were based on the 1.4 Multiair units.
They sold a 500 Turbo with 135hp and Sport with around 101hp.


The 500 turbo isn't to be confused with the Abarth, they sold the Abarth with Multiair turbo power as well.


Lately they've introduced Pop and Lounge, but again with 1.4 Multiair power.

I think we can all safely say that you'd struggle to hit 70mpg in a Twinair even if you throw it off a cliff!

The 500e is available in some US states, what is the range of one of them?
Click to expand...

This is correct, we only have 1.4 n/a (101), 1.4 turbo (135hp), and 1.4 turbo abarth (160hp). We really got screwed on our engines because of our government policies and crap.


Well thanks for the responses everyone! Glad I didn't pull the trigger and buy one a few days ago.
 
My Panda Twin Air does 34-41 in regular use in US terms 27 - 36 US mpg. It is actually far better driven literally as fast as it will go when it does 44mpg ( 38.5)

Instant mpg can driven at 45-50mph be seen as high as 90 mpg but absolutely any acceleration or use of higher revs drops the mpg through the floor, I think your mpg in US gals would likely be 35 - 40. The new fuel consumption under the mildly different WLTP test now in place show the Panda 4x4 I have drop from 65mpg to 37. Don't what ever you do work your figures on anything like 70mpg!
 
I've given up looking at my mpg.
Last time I looked my Abarth reported 19mpg! And that's not from small watery US gallons, but full fat UK Shell V Power ones.

I did try not driving everywhere at 4500 rpm, but it's kind of addictive, the noise alone is worth every penny.
 
USFiatGuy said:
Hello everyone!

I'm a very new person to this forum, but I thought I would try here first instead of the US forums since everyone else in the world gets to enjoy all the engines Fiat has to offer.

So long story short, I commute over 100 miles each day (typical US uber rural commute), and I'm looking to get the most gas mileage I can. I've read that the 0.9 twinair engine can get in the 70 mpg range, which is about double what I can do now with some how the same power...

So my question is... Has anyone done this before? I've found a couple on Italy's ebay and other sources that come with almost everything for ~1500-1700 euros. I just wonder how involved of a swap it would be, I would think not too bad.

I also wonder, and expect, it's the same transmission. I would bet the axles are different, and the wiring harness, but that's about all I can think of.

Thoughts?

About my car: 2012 Fiat 500 1.4L 155,000 miles
completely new suspension, ball joints, bearings and all.

Thanks everyone!
Click to expand...

Owned a TwinAir 85hp Dualogic and a 1.2 500C for just over 5 years now.
Sold the TwinAir 2 weeks ago with 55000miles on the clock.

I would average 52 british MPG driven in Eco mode and around 48 MPG for the 1.2. It is not possible in reality for these cars to see the claimed MPG!

Also the TwinAir drove best on 98 Ron Octane fuel and would de tune itself slightly on European standard 95!
 
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