LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

'12 Impala motor.

Thread Tools
 
Search this Thread
 
Old Aug 1, 2011 | 04:31 PM
  #1  
SILVER LS4's Avatar
Thread Starter
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default '12 Impala motor.

The only engine tranny combo in the '12 Impala will be a 302hp/262lbft (I've seen conflictin no.s, but that's most common) 3.6L V6, with a 6 spd transmission. That may give an LS4 a run for the money. Talking about a sleeper.
Reply
Old Aug 1, 2011 | 04:41 PM
  #2  
TheJPGXP's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 640
Likes: 1
Default

We know. I don't see it as a threat.
Reply
Old Aug 1, 2011 | 04:43 PM
  #3  
94ss06gxp's Avatar
TECH Addict
iTrader: (5)
 
Joined: Aug 2009
Posts: 2,351
Likes: 0
From: Mid MI
Default

maybe that 6 speed will be a good swap trans??!!
Reply
Old Aug 1, 2011 | 04:44 PM
  #4  
07carlocrusader's Avatar
TECH Enthusiast
 
Joined: Jul 2008
Posts: 703
Likes: 0
From: Atlanta Georgia USA
Default

/\ yeah,...look at the "lbfts" up top its okay but no need to worry,.....when the caprice comes back its going to shut the Imp down but I think it will only be for the Police the 1st year or something to that effect?? I dunno,....
Reply
Old Aug 1, 2011 | 04:44 PM
  #5  
AlabamaGuy's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2009
Posts: 2,802
Likes: 0
Default

Originally Posted by 94ss06gxp
maybe that 6 speed will be a good swap trans??!!
We will still have PCM/starter problems.

I'm not worried about it as the aftermarket support isn't there for it...not to mention the lack of tq.
Reply
Old Aug 1, 2011 | 04:55 PM
  #6  
SILVER LS4's Avatar
Thread Starter
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default

You may not need as much torque with the 6spd.
Reply
Old Aug 1, 2011 | 05:01 PM
  #7  
AlabamaGuy's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2009
Posts: 2,802
Likes: 0
Default

Originally Posted by SILVER LS4
You may not need as much torque with the 6spd.
But the torque we make spread out over a longer period of time will come out on top, more likely than not.
Reply
Old Aug 1, 2011 | 05:33 PM
  #8  
LS1 Racing's Avatar
TECH Addict
20 Year Member
Photogenic
iTrader: (15)
 
Joined: Aug 2002
Posts: 2,419
Likes: 6
From: 78°14′46″N 15°27′56″E
Default

Yup...This has been covered before in other threads. Stock for stock, the LS4 will be quicker.

A heads-up run from a dig probably sees the LS4 car grab a nice lead up to 50 or 60, where it runs into a wall because the motor just can't breath. This gives the 3.6 a chance to close the gap some, due to superior top-end breathing and better gearing from the 6T70 trans. In the end, I'll bet a stock LS4 is anywhere from two to four tenths quicker in the quarter mile, maybe more.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 1, 2011 | 07:10 PM
  #9  
SILVER LS4's Avatar
Thread Starter
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default

I think the ls4 hits a wall when it shifts out of 1st.

I would guess, that the new 302hp Impala should beat a mid 14 sec 271hp Honda Accord, making it a good race for a mid to low 14 second LS4.

And the '12 is rated at 30 mpg highway.

Last edited by SILVER LS4; Aug 1, 2011 at 07:16 PM.
Reply
Old Aug 1, 2011 | 07:19 PM
  #10  
LS1 Racing's Avatar
TECH Addict
20 Year Member
Photogenic
iTrader: (15)
 
Joined: Aug 2002
Posts: 2,419
Likes: 6
From: 78°14′46″N 15°27′56″E
Default

Originally Posted by SILVER LS4
I think the ls4 hits a wall when it shifts out of 1st.

I would guess, that the new 302hp Impala should beat a mid 14 sec 271hp Honda Accord, making it a good race for a mid to low 14 second LS4.
I guess it depends on how you define "good race".

The cars will probably weigh roughly the same, though I would not be surprised if the 3.6/6-speed car weighed more than the LS4 car. After that, it comes down to torque and gearing.

Guess we'll have to wait and see!
Reply
Old Aug 1, 2011 | 07:25 PM
  #11  
TheJPGXP's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 640
Likes: 1
Default

My car doesn't hit a wall in second, third, though...
Reply
Old Aug 1, 2011 | 07:56 PM
  #12  
AlabamaGuy's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2009
Posts: 2,802
Likes: 0
Default

I don't run into this "wall" you speak of....2-3 will put me back in my seat...but then again, I'm not exactly stock.
Reply
Old Aug 1, 2011 | 08:05 PM
  #13  
xxtheshockerxx's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 518
Likes: 0
From: Iowa
Default

my 2-3 is nothing spectacular i need more mods
Reply
Old Aug 1, 2011 | 08:37 PM
  #14  
SILVER LS4's Avatar
Thread Starter
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default

There is a big gap between the 1-2 gears in most GM 4 speeds, mine incluede.
Reply




All times are GMT -5. The time now is 04:44 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE