Comments on: Fiat to build two cylinder SGE engine in Poland

By: Marvin McConoughey

Marvin McConoughey — Sun, 05 Apr 2009 09:06:54 +0000

This is an important and worthy engine development. Technology advance increases the power-per-cylinder year after year. Economy is crucial. Fuel costs will rise greatly as supplies run low and the two cylinder engine offers less fuel consumption and less total engine friction than an equal displacement four cylinder engine.. Acceptable ngine refinement can be had by using two sets of counter-rotating counterbalance shafts; one at engine speed and one at twice engine speed. Less complex balancing is available at slightly less refinement. Either approach will be coupled with elastic engine mounts. Computer controlled mounts are another option for higher-end vehicles. As engine sizes shrink, combustion chamber space for direct fuel injection, four valves, and a spark plug or two becomes very precious. Two cylinders give more space per cylinder for a given engine displacement and eases the engineering challenge. Durability is more a matter of materials, precision, and design than of how many cylinders are used. Fiat and Tata are going with parallel twins, but a V-twin is another very feasible approach, using counter-rotating counterweights at twice engine speed to quell the secondary imbalance forces. Not to be ignored is the important engine compartment space savings allowed by having only two cylinders to find room for.

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By: jamsbong

jamsbong — Sun, 13 Jul 2008 12:09:43 +0000

Oh no, car companies are introducing lesser cylinders? that means more noise and vibration! I personally consider 4 cylinders low and anything lower is just brute and uncivilized.

Nah, I don’t like this.

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By: azrai

azrai — Mon, 07 Jul 2008 22:44:58 +0000

Wah…Macam motosikal.

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By: JULIANLEE2

JULIANLEE2 — Mon, 07 Jul 2008 06:57:24 +0000

WILL THIS BE ON THE FIAT 500 ARIA?

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By: Paul Tan

Paul Tan — Sun, 06 Jul 2008 15:14:06 +0000

test

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By: Paul Tan

Paul Tan — Sun, 06 Jul 2008 15:08:19 +0000

i have a feeling they are comparing to a 4 cylinder engine of equal displacement

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By: knight_templar

knight_templar — Sun, 06 Jul 2008 14:16:13 +0000

suddenly the concept of a two cylinder econobox like the Tata Nano is not an isolated one. Foresight on Ratan Tata’s part perhaps?
Anyway is that an engine with a boxer layout? what seems weird is the engine is half the size but weight is only reduced by 20% and worst volume only 25%. That means the combusted volume of fuel, which has been reduced by half (from 4 cyl) effectively HAS to deal with more weight. Doesnt seem like a logical approach. There should have been more reductions in weight and space.

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By: nmh

nmh — Sun, 06 Jul 2008 14:02:13 +0000

110 bhp …super light super supermini

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By: mokkf82

mokkf82 — Sun, 06 Jul 2008 11:07:19 +0000

Good! the fuel consumption would be great in this. Small car small engine and big saving in fuel definitely

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By: Roti Naan

Roti Naan — Sun, 06 Jul 2008 05:28:38 +0000

one can’t compared car engine & superbike engine per se, even though the cc is almost similar. 1 thing for sure, superbike engine thrives on high rpm but the torque isn’t that outstanding. Typically road going car engine rev hardly exceed 5 figures rpm.

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By: fighter_B2500

fighter_B2500 — Sun, 06 Jul 2008 03:45:00 +0000

900cc that can produce 110hp..interesting!
but output from most of superbike engines is greater (without force induction of coz) ..this is due to racing tech ehh?? anyone know?

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