What is the 3.9 v6 the general is using now?

#21

<HLS (AT) nospam (DOT) nix> wrote in news:h9Hwh.6016$zH1.4501
@newssvr29.news.prodigy.net:

Quote:

"scott" <scott.snowboard (AT) gmail (DOT) com> wrote in message
news:1170395992.184551.42280 (AT) p10g2000cwp (DOT) googlegroups.com...

I don't care for the hp and torque curves on OHC engines.
So far I've avoided owning a OHC engine.- Hide quoted text -

- Show quoted text -

I had a Maxima SE 5 speed with the 3.0 VQ engine (DOHC, 24 valve) and
it had nearly zero torque anywhere near idle. It would scream if you
drove it over 3000 rpm, but it was so easy to kill the motor just
driving it around. Sold that and got the '00 intrigue with the 3.5 GM
premium v6, with also OHC and 24 valves. Totally different motor
dynamics, it has a great torque curve but unlike the OHV cars I've
owned it doesn't go flat as it revs, it pulls (and smoothly) right up
to the redline. So don't put all the engines in the same bucket.

The fact that an engine has overhead cams doesnt determine the torque
curve nor the horsepower development. It is what you do with the
camming
that makes a massive difference.

In the early 90's, I owned a 1985 Toyota Corolla GTS (bought for 600 from
a salvage yard; I had to replace a fender/hood on it; 600 ain't bad for a
5 year old car with 60K miles). That was a real cool car. Old school
rear wheel drive. It had the 4Ag-E engine -- DOHC, 16 valves, EFI, etc..
Same engine as the MR-2 had. It redlined at like 7500rpm. It sounded
like a Ferrari Testarossa. It was tuned for performance; if you knew how
to shift, you could blow the doors off most cars. But an American car
(even a large one) with a properly set-up V8 would mop the floor with
that Corolla GTS, with no shifting required. As the driver of the 455ci
SD powered 1970 Pontiac GTO Judge said (in the great car film '2 Lane
Blacktop'): JUST COLOR ME GONE, BABY!

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#22

"Grappletech" <noone (AT) yodoor (DOT) biz> wrote in message

Quote:

In the early 90's, I owned a 1985 Toyota Corolla GTS (bought for 600 from
a salvage yard; I had to replace a fender/hood on it; 600 ain't bad for a
5 year old car with 60K miles). That was a real cool car. Old school
rear wheel drive. It had the 4Ag-E engine -- DOHC, 16 valves, EFI, etc..
Same engine as the MR-2 had. It redlined at like 7500rpm. It sounded
like a Ferrari Testarossa. It was tuned for performance; if you knew how
to shift, you could blow the doors off most cars. But an American car
(even a large one) with a properly set-up V8 would mop the floor with
that Corolla GTS, with no shifting required. As the driver of the 455ci
SD powered 1970 Pontiac GTO Judge said (in the great car film '2 Lane
Blacktop'): JUST COLOR ME GONE, BABY!

Put four overhead camshafts on a 455 cid V8, tune it right, and see what
you can get.

The separate overhead camshafts offer a world of tunability options.
Admittedly, you can do a lot with a single camshaft pushrod engine.

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What is the 3.9 v6 the general is using now?

General Motors Discussions About General Motors vehicles (alt.autos.gm)

Re: What is the 3.9 v6 the general is using now? - 02-02-2007 , 10:35 AM

Re: What is the 3.9 v6 the general is using now? - 02-02-2007 , 11:05 AM