Variable Valve Timing

GM make any cars with variable valve timing?

Vito

Reply to
Uncle_vito
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Yes, in 2005 cars that were equipped with twin-cam 3.6L V6 engines and they also switched to a newly designed actuator for the 4.2 that year.

Reply to
Dad

Glad to hear it.

I was noticing that my BMW and Toyota Highlander have it. Of course, newer Corvettes do not.

GM would really have a screamer with dual overhead cams, variable valve timing on the intake and exhaust and direct injection. 4 valves per cylinder and a 7500 rpm redline. Low and high speed intake runners would be cool too. But that would cost money and Corvette owners basically buy anything with the word Corvette on it so why do they bother. Seems the most technological advancement on the latest corvettes is that muffler valve that opens the pipes at high speeds. How about a dual tract intake that does the same thing.

I belong to a Corvette club and drive my 64 convertible until GM comes out with something that is technically sophisticated and does not have limitations in the name of saving money.

Vito

Reply to
Uncle_vito

You've been waiting for 45 years already. You're running out of time.

-W

Reply to
Clams Canino

You are talking Honda S2000 which developed 240 hp out of 2.0 ltrs when it first came out. I think the power was developed at 9,000 rpm or so. Of course, the S2000 is no longer made. I suppose one could extrapolate the Honda to a 4.0 V8 developing around 400 hp, but does one need all that technology to produce an engine with 400-450 hp. GM tried the Honda S2000 with the Pontiac Solstice (I believe that was what it was called), but it never seemed catch on and was supposedly (per Consumers Reports) unreliable.

Reply to
tww1491

I know. I am sure to buy a new corvette eventually. I will llike the model if I wait long enough.,

Besides most folks who drive newer vettes are old. I will fit right in in another 20 years.

Vito

Reply to
Uncle_vito

Well old negative dude, I doubt very much you're glad to hear it, if you were interested you would already know what they have. Most likely what you wanted to do with your post is take a pot shot at what GM is or isn't doing along with a snipe at Corvette owners.

By the way the GM VVT cam is hydraulically operated on push rod engines. There is still room in this country for the push rod engine and for that I'm glad. I had my one overhead cam engine and I'll stick with the push rod. You really need it get off the bitching about what they aren't doing for you and enjoy what they do a bit more. Then to there is always room to get in there and fix it yourself instead of waiting on someone else build your dream car.

You didn't notice that the base 327 '64 turns out about .75 HP per CID and the base LS3 will get 1.14 without the marvelous muffler valve? It will do that while getting twice the MPG with safety equipment that wasn't even thought of in '64 on 9" wide tires. The airconditioning, ABS, power steering, shoulder belts, 4 air bags, power disk brakes, power windows, power seats, fog lights, electronic door locks,

1,500/2,000 more RPM to red line, side beams, and other government required items like 5 MPH bumpers that all added weight. But wait, the Corvette gained only 50 pounds with all that added. Of course all that happened without any impute from GM.

The Corvette club I belong to has a few pricks as any organization does and once a year I try to be nice to them so they won't re-elect me to do their job any more. As long as I would accept the election to an office I was an officer of the club and on a national level. Then one day I woke up to the fact that the people that were bitching at me were the same ones that never held an office. I'm sure you fit in your Corvette club very well, there should always be room for diversity.

Reply to
Dad

Thanks for your input, Dad as I enjoy reading your posts. Yes, I like to bitch at the newer Corvettes. I do not care about hi horsepower per se, because it would likely get me killed or in jail. I just think the mid years are the best looking cars ever.

Not sure I like the looks of the C5, C6. Sorry, they just do not grab me with a gotta have it. But not too many cars do other than the snob cars like an Aston Martin.

If I was ever diagnosed with terminal cancer I would get an AM. I have $500,000 in life insurance and know my wife would be happy to share a third of that for me getting a great car. So much for my bucket list.

Vito

Reply to
Uncle_vito

HEY VITO --->>

Shame you aren't up to date on what's going on. Those archaic Toyota and BMW engines haven't caught up with what GM had on the CTS last year. It's migrated to the Buick CXS and Chevy-Camaro SS 3.6L engines this year.

These quad-valve engines are VVT on /both/ intake and exhaust and have Direct Injection. Shame Toyota hasn't done all that as yet on the production engines.

Do thine homework. :)

-- pj

Reply to
pj

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