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carman21

New Wave Engines

4 posts in this topic

carman21    7

1) Dual VVT(1-3years for mainstream GM product)

This will be on the next gen 3.6L HF V-6. GM will likely set Toyota's 3.5L Dual-VVT V-6 as the benchmark to follow for it HF 3.6L V-6 and its HF 2.8L V-6. GM will match Toyota's HP and MPG.

2) Direct Fuel injection(2-3years for mainstream GM product)

This will premier on the next CTS on the 3.6L HF V-6. This engine will have Dual-VVT and Direct Injection. HP will be blown to up to 340hp! DirectInjection will surplant conventionl Fuel Injection with in a decade on all applications

3) Active Fuel Management(currently, next gen 3-4years)

This has already been introduced on several vehicles including th Impala SS. However, a newer more flexible version will outperform hybrids both on the HWY and in the City. AFM will be very common place as the hybrid fad fades into more cost effective methods to save gas.

4) Camless Engines(beyond 5 years)

There are no official plans to develop these new engines in the next 5yrs. However, they are to the 2010s what the OHV engine was to the 1950s and what the OHC engine was to the 1980s. GM will likely take advantage of theis high tech oppurtunity. GM doesn't want to lag behind the high-tech latter like it has so long on OHC engines.

Edited by carman21

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thegriffon    5

Dual VVT is already used on most versions of the HFV6, the first Dual-VVT V6 engine to be sold by anyone (ahead of Toyota which had straight-6s and Mercedes which previously has SOHC V6s). Single VVT (intake) versions include the standard 2.8 L turbos and the decontented 230 hp 3.6 base engine in the Commodore. The rest are all Dual-VVT, including the Direct-injection 3.2 L built for Alfa Romeo and the 2.8 L Twin Turbo concept engine in the Aero-X.

For emissions reasons the Solstice GXP's 2.0 Turbo is the first GDI engine offered in NA, but others built by GM include dual-VVT 1.9 and 2.2 L Family II egines for Alfa, and the standard 2.2 Direct for Opel and Fiat.

Interestingly the 3.5 L 2GR-FSE in rwd Lexus models has both direct injection and port injection (expensive), switching between modes depending on engine speed, while the smaller 3GR- and 4GR-FSE engines (Toyota's first Dual-VVT V6s, a few months after GM's 3.6 L) in the IS250 and GS300 have a standard direct-injection system.

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regfootball    234

oh, would I love a dual VVT, direct injection AWD new CTS when that comes out. if it was blown, even better.

I think camless engines hold tremendous progress, this is an opportunity for the general to beat others to the punch and 'leapfrog' the Japanese competition. If I were GM, I would quietly co-develop a system with BMW and try to get to market with the first and best and most reliable version of it. We can't let the Japanese beat us to the punch with that one.

I sure hope all of GM's mainstream cars get available OHC soon.

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