Here's one...
http://www.youtube.com/watch?v=C41ns9lQG8M

 

[align=left][/align][blockquote][align=center]Source Car Guys Website[/align][align=center]
2006 Chevrolet Monte Carlo LT 3.9L Specifications
Performance

Original MSRP Base +
$23,430

Engine
3.9L 242 hp V6

Horsepower (@rpm)
242 @ 6000

Torque (@rpm)
242 @ 4400

4-Speed Automatic Overdrive
Std.

City MPG
20

Highway MPG
28

Seating
5

0-60 (sec)

6.5 sec[/align][/align][align=center]
1/4 mile[/align][align=center][/align][align=center]14.56 (sec)[/align][align=center][/align][align=center]94.1 mph[/align][/blockquote]

 

i should have my pulley installed soon so it should be pretty fun to have a go with a 3.9 l monte now

 

[align=center] [align=center]Space, Here isa pic of the 3900 without the engine cover for you!![/align][align=center][/align][align=center]The largest of GM's expanding family of 60° V-6 engines, the 3900 achieves larger displacement via an increase in bore size to 99 mm from the 3500 V-6’s 94 mm — requiring the bore centers to be ofset by 1.5 mm. Michalski said the 3900’s increased displacement fits glove-in-hand with Displacement on Demand: "A bigger engine is better when you want to maximize the amount of time the engine spends in three-cylinder operation," he explained.
The LZ8 3900 will be the first GM overhead valve engine to use variable valve timing, and it will be GM’s first V-6 to use DOD. The 3900's variable valve timing is coupled with another important new feature: a dual-path, active intake manifold.
[blockquote]
"The variable intake manifold is a significant low-speed torque 'enhancer' for the 3900. It gives the 3900 a broader torque curve that retains higher specific torque output across the engine speed range."[/align][align=right]Dick Michalski, chief engineer for 60-degree OHV V-6 engines.[/align][/blockquote]The new 3900 V-6 (LZ8) is a 3.9 liter, two-valves-per-cylinder OHV V-6 that is most closely related to the 3500 V-6 (LX9) launched for the 2004 model year Chevrolet Malibu. Its first application without DOD will be on the 2005 Pontiac G6 in late 2004. A version of the 3900 V6 featuring the DOD system will debut in 2005.
The 3900 is estimated to develop 240 hp at 5900 rpm and 245 lb-ft of torque at just 2800 rpm. Moreover, thanks to the 3900's torque-enhancing technologies, 90% of peak torque is available from 1800 rpm to 5800 rpm, enhancing the engine's driveability and performance "feel." According to Alan Hayman, manager-advanced concept group in GM Powertrain's Advanced Powertrain unit, a new 3-valve cylinder-head developed for GM's OHV engines could boost output to 270 hp. [/align]

 

I would like to see the results from a run off with these engines. I would hope that both were bone stock. I had a 2004 S/C Monte, and she would (in my opinion) really haul *** up to about 90mph. I felt the power would drop off in around the 85/90mph range. I always thought this would be due to the 6 cyl just not having the cubes to sustain the power. I also had a 2001 3.8 non-supercharged, and the performancedifference between these cars was substantial.

I have never driven a 3.9, but being rated at 242hp, it's in the same league as the 3.8 s/c. I don't know if the supercharged 3.8might be more of an instantpower jolt which the 3.9 couldn't catch or not. To me, the supercharger seemed to give you a major hit at low and mid speeds. Good question, I hope someone can answer it. Hopefully as stated, both cars are bone stock, otherwise we still won't know.

 

[align=center]Hi Bill & Members,[/align][align=center]RevItUpFaster - Bill, you've had a great group of Monte Carlo's.[/align][align=center][/align][align=center]I also think a 3.8 SuperCharged Montewould have aslightadvantage [/align][align=center]over a 3.9L engine, but I think it would be a close race.[/align][align=center]1. Both engine's stock[/align][align=center]2. Same skilled driver's[/align][align=center][/align][align=center][/align][align=center]I keep hoping that a member will be able to race their 3.8 SC against a 3.9L[/align][align=center]and record the event or have time slips.[/align][align=center][/align][align=center]One advantage of the 3.9L is that is uses regular fuel & the 3.8 SC needs Prem/HighTest[/align][align=center]The weight of both are about the same & I think the gearing is the same also.[/align][align=center][/align][align=center]I'm sure that someone will be able to find someone to line up. I've been look'in for[/align][align=center]a 3.8 SC 2 line up with, but Ican't afford another ticket for Streetracing & I would set it up to[/align][align=center]go to the track... My Insurance now is kill'in me... I have 5 more months 2 go[/align][align=center]before I'm off driving probation from Street Rac'in: ([/align][align=center][/align][align=center]Until then I will keep check'in the forum for a member to post their results : )[/align][align=center]Thanks for your post `Bill & members.[/align][align=center][/align][align=center]Your mission, `if you choose to accept ? =is to find a Monte Carlo & Race it & Report it[/align][align=center]on the MCF : )[/align][align=center][/align]

 

[align=center]The 3.8 SC has greater torque @ a lower RPM then a 3.9L[/align]



[align=center]3800 3.8L V6 Supercharged [/align]

Specifications

[align=center][/align]

Displacement: 3791cc

Assembly Site: Flint, Michigan

Configuration: Overhead Valves (2 valves per cylinder)

Horsepower: 260 hp @ 5200-5400 rpm

Torque: 280 lb-ft @ 3600 rpm

Applications: Pontiac Grand Prix

Features: Eaton Supercharger

[align=center]3900 3.9L V6 (LZ9/LGD)[/align]

[align=center]Specifications [/align]

[align=center][/align]


Displacement: 3880cc

Assembly Site: Tonawanda, New York

Configuration: Overhead Valves (2 valves per cylinder).

Horsepower/Application:
227 @ 6000 rpm (G6 Convertible)
240 @ 6000 rpm (G6, Malibu SS, SV6, Uplander, Relay, Terraza)
242 @ 6000 rpm (Impala, Monte Carlo)

Torque:
235 lb-ft @ 3000 (G6 Convertible)
240 lb-ft @ 4600 (G6, Malibu SS)
240 lb-ft @ 4800 (SV6, Uplander, Relay, Terraza)
242 lb-ft @ 4800 (Impala, Monte Carlo)

Features: Dual Variable Valve Timing
Roller Rocker Arms
E85 Ethanol Capable (LGD only)

[hr]

 

i think the supercharger obvously helps with acceleration, but it also helps in the top end where a non supercharged car would slow off quicker, the supercharged one just keeps goin and goin

once i get my pulley installed i will definetely post how she move's then, cuz i think she already moves good now, can't wait for that extra 20-25 hp

 

Space, the Pontiacs must be over-rated, because I beat a S/C grand prix.

Ok, Imma only say this once. The LZ9, aka 3900 aka 3.9L has over 200 in torque from 2K to 6K (redline). So while overall it fallsshort in torque production numbers, it's torque curve is more effective in a race. You can really see the effect of the Variable Intake in the torque curve. It's a smoother curve than the S/C's,considering the S/C 3800 torque curve peaks very early, then drops off. Why? Because the stock exhaust of the 3.8is much more restrictive (U-Bend). The 3.9 eliminated that troublesome U-bend, while also getting the Variable Intake. Look at the numbers, 14.56 seconds to 15.1. The tall 2nd gear of both vehicles really makes those torque numbers shine, and in thelatter parts of second gear the 3.9 will easy catch up (to pass later) if not pass the 3800 straight up. The 3.8sc also has its torque earlier, making it harder to get a good start out of the car, without spinning the tires.

Now I honestly haven't seen the gm-made dyno of the 3.8sc, to compare it to the GM one I have of the 3.9, but I'm sure if you look at the torque curves you'll easily see what I'm talking about. In my car, taking off on dry pavement, it's nearly impossible to really spin the tires for a good amount of time. I don't know if the traction control is always there or what, but even with the TC off the engine backs off if the tires are spinning substantially-which, coincidentally, is very easy when taking off while turning.

Now, I'm no genious, but I've done a fair amount of research, so I am fairly confident in saying that a Dead-stock 05 SC 3800 versus the 2006 Monte (bone stock) will be a VERY good race, but one I believe will end with the 3.9 in the lead. If anyone here in Iowa has a S/C 3.8 monte, bone stock, I will gladly replace my K&N with a stock paper replacement to make it a fair race. But, loser pays for the paper filter, and the track time The nearest track has a Test and tune day Early next month, and it's 20$ per entry, but not sure of any other fees.


Anyone interested, PM me.

 

Here's the 3.9's stock GM reported Dyno map

[IMG]local://upfiles/2185/41F11CDBDF4F48908D2D0C5187D3F112.jpg[/IMG]