Anyone know anything about the Buick Lacrosse?

Post any information you know about the Lacrosse.

Its supposed to replace the park ave, and possibly RWD.

The lacrosse is the Regal replacement coming out next model year!

Buick Lacrosse (http://www.buick.com/lacrosse/)

Also in Canada the lacrosse will be renamed, it seems that Lacrosse is a slang word for self stimulation the French areas of Canada!

Also look for the new Buick Terraza another version based on the U body platform. For the folks that don't know what a U body is it is a mini van.

We also have a new engine coming out it will be in the Lacrosse and some other models the 3.6L VVT DOHC V-6, 240 horsepower.

thanks i didn't know they had a section at buick

I read that is was slated for the park avenue platform a few months ago. A lot can change in four months I guess...

It's a beautiful looking car, it's gonna have the new GM engine in it. The 3.6 Liter DOHC V6.

I was just at an auto show, and unfortunatly, it wasnt there. :( There was a rainier, however. I've decided, thats my next car :)

I was told that the 231 was getting canned. Is that true as well? the person that told me this is not known to be all that reliable when it comes to what new products are coming out. For example he tried to tell me that the new GTO was AWD and 400 HP :rolleyes: Anyway, I really like the way the Lacrosse looks and what they have done with the car. Theyll probabally end up supercharging that 3.6 sooner or later though. If only they would put out another turbo engine again.....

Supercharging would kinda be unescessary, the 3.6 comes stock with 245 horsepower, which would seem good enough for that car. What am i saying!! There's always room for more horsepower,i hope they do supercharge it. :grinno:

I was told that the 231 was getting canned. Is that true as well? the person that told me this is not known to be all that reliable when it comes to what new products are coming out. For example he tried to tell me that the new GTO was AWD and 400 HP :rolleyes:

I thought the 231 was going to be the standard engine in the LaCrosse. It will be the Series III though. Dunno what that means. On the luxo level LaCrosse the new 3.6 DOCH engine will be used, but they're keeping the 3.8, 231, whatever, around.

I like the 3.8. It's a good reliable little engine. Had one in my '85 Cutlass, couldn't kill the thing.

The new LaCrosse sure looks purty though!!

Have a good one!!

Dan

231CID engine is standard in the Lacrosse. 3.6 VVT V6 is optional, outperforming the current SC 3.8

For anyone who doesn't know what the VVT engine is it is variable valve timing. The exhaust as well as the intake will have a cam phaser that can change the valve tiiming. It can vary the valve overlap. One of the functions of the valve overlap it to clean up the emissions coming out the tailpipe. This valve overlap is called Exhaust Gas recirculation, also refered to as EGR.

the later series 1 3800's (1994) had an EGR module thingy a few inches from the thermostat. Did they have a much more basic version if VVT? If not, then what did it do?

the later series 1 3800's (1994) had an EGR module thingy a few inches from the thermostat. Did they have a much more basic version if VVT? If not, then what did it do?


The GN's had an EGR valve too, it open up when you are decelerating, when the exhaust gasses are the most rich, to recurilate that rich gas back into your combustion chamber to help with emmisions. As cool as it would be, VVT is not on a series I engine, VVT has not come on as a popular thing untill recently. Correct me if im wrong but, I think the V- tech hondas are the first cars to be massed produced with VVT.

Andy

the later series 1 3800's (1994) had an EGR module thingy a few inches from the thermostat. Did they have a much more basic version if VVT? If not, then what did it do?


The way an EGR system works when it has a valve is it allows exhaust gas into the intake to lower combustion chamber temps. Now on a VVT engine the computer can adjust the amount of time the valves are open. IF you hold the exhaust open longer when the intake valve is open while the piston is going down, it will draw exhaust gases back into the cylinder giving you an EGR system without the valve. Its all about getting exhaust gases back into the cylinder to lower the temp. When you lower the temp you will reduce the NOX coming out the tailpipe. That is one of the uses for the VVT. I will try to dig up some more info later.

Okay, I was part way right, the vtec guy probably got the idea from EGR valves

Kick ass, where iwork just got pre production brochures on the Buick LaCrosse. I can post more info on it if people like, since i stole one. They aren't supposed to be seen by the public yet.. :sly: Engine options are interesting- choose between the series3 3800 or the new 3.6. Personally i'd go with the 3800.

Yes, please post more information!

Ok today I had a training class on the new GM engines. I got some good info from the class. Engines we went over are new or coming out soon. The 2.8Land the 3.5L Vortec, The 3.6L HFV-6, the 4.6L LH2 Northstar and the 3.5L HVV-6.

Since the 3.6 will be in the Lacrosse I will give you the info I was told.

The 3.6L HFV(High Feature V6)!

Dual overhead cam 4 valves per cylinder
Roller finger follower valvetrain
Continously Varaible cam phasing
Electronic throttle control
Piston cooling oil jets
Engine overheat (limp home) protection
Coil on plug ignition


Spec

250 lb-ft torque at 2800 rpm
94mm x 85.6 mm bore and stroke
10.2 : 1 compression ratio
6700 rpm fuel shutoff


Valvetrain

dual overhead cams
roller finger followers
Stationary hydraulic lash adjusters
Beehive style valve springs


Engine

Alunium oil pan
6 quart oil capacity
Pressure actuated oil jets

Intake and exhaust

{*] Variable intake manifold
Close coupled cat convertor


Cooling system

overheat protection- enables driving short distants at reduced power after a total loss of coolant
Dry block heater option


New type of O2 senor called a WIDE BAND OXYGEN SENSOR.

Returnless fuel system.

Continuosly variable valve timing. Intake and exhaust has camshaft phasing which eliminates the need for an EGR and air pump. The cam phaser gives you 50 degrees of crankshaft adjustment. It has 4 cam sensors.

Sounds like its going to be a great reliable engine.

Its about time GM makes a smaller V6 that can produce as much as what the dodge 3.5 has been producing for a few years. I still find it funny that GM has been using the 3.8 with only 200 hp for so many years. My 1995 Chrysler has a 3.5 that came stock with 214hp and 221 torque. The Ones theyve been using the last couple years have had 245hp and 250 torque. With out a super charger. Its nice to see GM finally Catch up.

that 3.5 mopar engine couldnot stay together

My 1995 3.5 v6 has 156,000 miles on it and hasnt been rebuilt yet. neither has my transmission. My engine leaks a little bit of oil but its still got plenty of power and can smoke a gm 3.8 that isnt super charged. My dads buick lesabre had the 3.8 and it broke a connecting rod at 78,000 miles and punched a whole in the block.

I have owned 2 chrysler/Dodge products in my life, both of them were crap, one couldn't stay running, the other leaked and burned oil so much I had to carry 6 bottles of oil with me where ever I went. These 2 vehicles left me stranded so much it was unbelievable. Since then I have owned nothing but GM vehicles, most of them with a 3.8. I now have a 1990 Buick Park Ave with 200,000 on it and it doesn't burn oil, it doesn't leak anything, and it has plenty of pick up.
Did I mention this engine or the transmission hasn't been rebuilt.