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Discussion Starter #1
FCA launched MultiAir around 2009 and since then spread out to many engines under Jeep, fiat hood, licensed to Jag and implemented in the Ingenium engine family as well.

Is the 2.0t a multiair? and DI (it sounds like DI at low rpm)? What about the 2.9t in Quad?

Different car maker take some different route to achieve better power and lower emission/consumption:

Nissan goes variable compression ratio, Mazda is making gas engine work like diesel by using compression to ignite the combustion. Ford/Toyota goes DI plus PI(Ecoboost/D-4S). BMW had the valvetronics for years, and we all know that vvt-i in jap cars. What you think the Multiair2 stands compare to other guys?
 

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Yes it is. Very clever system that is extremely simple and effective adding almost no weight or complicated mechanical elements. Alfa was the first car company to introduce VVT with the Spider back in the 80's, mostly for emissions reasons.
 

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A quick search wiki said so:
Fiat was the first auto manufacturer to patent a functional automotive variable valve timing system which included variable lift. Developed by Giovanni Torazza in the late 1960s, the system used hydraulic pressure to vary the fulcrum of the cam followers (US Patent 3,641,988).[1] The hydraulic pressure changed according to engine speed and intake pressure. The typical opening variation was 37%.
 

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The Giulia’s engine is the 2.0 GME T4 “Hurricane” MultiAir. In news quoted by Automotive News:

“The new 2.0-liter, code-named Hurricane, is a high-output, direct-injected inline-four with variable valve timing and a twin-scroll turbocharger, according to sources. The aluminum block engine is expected to make almost 300 hp, a source with knowledge of the project told Automotive News.”
 
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2020 Alfa Romeo Giulia Sport Ti AWD
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Similar engine going into the new Jeep Wrangler and Cherokee?
 
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Similar engine going into the new Jeep Wrangler and Cherokee?
Yes looking at the new JL Wrangler, the engine is very similar. The only noticeable exterior difference is the fact that the JL 2.0 has a dipstick, everything else looks the same from the turbo placement to block layout. Their are probably small internal changes as well as a different ecu tune.
The funny thing is that the racks the JL 2.0 motor comes on has Alfa badging on it :laugh
 

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Yes looking at the new JL Wrangler, the engine is very similar. The only noticeable exterior difference is the fact that the JL 2.0 has a dipstick, everything else looks the same from the turbo placement to block layout. Their are probably small internal changes as well as a different ecu tune.
The funny thing is that the racks the JL 2.0 motor comes on has Alfa badging on it :laugh
Imagine if FCA had used the engine in the Jeep for a couple of years before introducing the Giulia. The auto media would have dubbed the Giulia "the Italian sports sedan with a Jeep engine". It's all about timing.
 

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Yes looking at the new JL Wrangler, the engine is very similar. The only noticeable exterior difference is the fact that the JL 2.0 has a dipstick, everything else looks the same from the turbo placement to block layout. Their are probably small internal changes as well as a different ecu tune.
The funny thing is that the racks the JL 2.0 motor comes on has Alfa badging on it :laugh

Hold up! Has anyone tried using the dipstick from the JL on the Alfa? Assuming the Alfa has a dipstick tube with a cap on it like many "sealed" transmissions.
 

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Yes looking at the new JL Wrangler, the engine is very similar. The only noticeable exterior difference is the fact that the JL 2.0 has a dipstick, everything else looks the same from the turbo placement to block layout. Their are probably small internal changes as well as a different ecu tune.
The funny thing is that the racks the JL 2.0 motor comes on has Alfa badging on it :laugh
The Jeep engine is open deck the Alfa is closed deck the performance is totally different
 

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I don't believe the Jeep is a Multi-air. Alfa 2.0 is a single overhead cam, the Jeep is a double overhead cam so the top end of the engines are different. Jeep is down about 15 HP but the similar low-end torque.
 
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