LFX 3.6 V6 question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Dave McFly · 11-06-2012, 03:44 AM

My dad bought last month a 2012 Impala LS with the 3.6 LFX engine. from what I read here it is the same motor in the current base Camaro engine (as well as used in other GM cars/crossovers). But what my dad wants to know is A: what is the correct HP amount, I am sure it is not the same 312 or whatever it puts out in the Camaro mainly cause he does not have dual exhaust (but he DOES have dual mufflers) and B: what is the difference between the LFX in the Camaro and the LFX in his Impala? For the record, he LOVES the car I have driven it myself and it is easily one of the fastest cars of his I have drove (and he had a 96 Z28 Camaro).

*DGthe3* · 11-06-2012, 10:13 AM

Quote:

Originally Posted by Dave McFly

My dad bought last month a 2012 Impala LS with the 3.6 LFX engine. from what I read here it is the same motor in the current base Camaro engine (as well as used in other GM cars/crossovers). But what my dad wants to know is A: what is the correct HP amount, I am sure it is not the same 312 or whatever it puts out in the Camaro mainly cause he does not have dual exhaust (but he DOES have dual mufflers) and B: what is the difference between the LFX in the Camaro and the LFX in his Impala? For the record, he LOVES the car I have driven it myself and it is easily one of the fastest cars of his I have drove (and he had a 96 Z28 Camaro).

http://gmpowertrain.com/VehicleEngin...nProducts.aspx
Impala LFX
300 hp @ 6500
262 ft-lbs @ 5300

About the only differences between engines in different applications are the intake & exhaust. Its a royal pain to get good exhaust flow on a transverse mounted V type engine, getting the exhaust from the front cylinder bank smoothly to the back of the car is the main problem.

pgustavson · 11-06-2012, 10:22 AM

My dealership rented a 2012 Impala LTZ for me while my car was in for warranty work. All I can say is that I am very confident that car would have walked my Camaro in a race. I haven't studied the issue, but there is something about the set-up that feels way stronger. Probably weight, gearing...etc. Anyway, I had a blast driving that thing for a few days.

KMPrenger · 11-07-2012, 11:19 AM

The LFX in the Camaro is rated at 323HP and 278 TQ, which is not a huge difference, but notably higher than the rating in the Impala.

I'd say the exhaust and the tune make the difference. I believe the Impala will also accept E85 fuel while the Camaro will not. Its is not exhaust alone unless that Impala is completely plugged up.

Rapid Runner · 11-09-2012, 04:46 PM

Even the impala with the 3.9L be moving, something about them

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archtaan · 11-09-2012, 05:05 PM

Chevrolet Camaro Coupe and Convertible 323 hp (241kW) @ 6800 SAE Certified
Chevrolet Impala Police Vehicle 302 hp (225kW) @ 6800 SAE Certified
Chevrolet Impala 300 hp (224kW) @ 6500 SAE Certified

Probably exhaust, the manifolds are likely different and the air intakes/manifold might have more bends in the Impala.

11-06-2012, 03:44 AM	#1
Dave McFly new car smell Drives: 2007 Ford Mustang 'Natasha' Join Date: Jan 2007 Location: Jamestown, NY Posts: 2,127 View My Garage	LFX 3.6 V6 question My dad bought last month a 2012 Impala LS with the 3.6 LFX engine. from what I read here it is the same motor in the current base Camaro engine (as well as used in other GM cars/crossovers). But what my dad wants to know is A: what is the correct HP amount, I am sure it is not the same 312 or whatever it puts out in the Camaro mainly cause he does not have dual exhaust (but he DOES have dual mufflers) and B: what is the difference between the LFX in the Camaro and the LFX in his Impala? For the record, he LOVES the car I have driven it myself and it is easily one of the fastest cars of his I have drove (and he had a 96 Z28 Camaro). __________________ "May the forces of evil become confused on the way to your house." George Carlin

11-06-2012, 10:22 AM	#3
pgustavson Stop writing "vert", ffs! Drives: 2011 2LT Convertible Join Date: Feb 2012 Location: Gambrills, MD Posts: 1,341 View My Garage	My dealership rented a 2012 Impala LTZ for me while my car was in for warranty work. All I can say is that I am very confident that car would have walked my Camaro in a race. I haven't studied the issue, but there is something about the set-up that feels way stronger. Probably weight, gearing...etc. Anyway, I had a blast driving that thing for a few days. __________________ Vararam \| Vmax Ported TB \| Ported IM \| Vmax Black ICE-olator

11-07-2012, 11:19 AM	#4
KMPrenger Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009 Location: Jefferson City, Missouri Posts: 13,949	The LFX in the Camaro is rated at 323HP and 278 TQ, which is not a huge difference, but notably higher than the rating in the Impala. I'd say the exhaust and the tune make the difference. I believe the Impala will also accept E85 fuel while the Camaro will not. Its is not exhaust alone unless that Impala is completely plugged up. __________________ 2016 Camaro 1SS - 8-speed - NPP - Black bowties 2010 Camaro 1LT V6 (Sold. I will miss her!)

11-09-2012, 04:46 PM	#5
Rapid Runner Drives: 2012 Audi TT-RS Join Date: Jul 2012 Location: Philadelphia Posts: 134	Even the impala with the 3.9L be moving, something about them Sent from BigNorm's iPhone 5 using Tapatalk

11-09-2012, 05:05 PM	#6
archtaan Drives: car Join Date: Nov 2009 Location: USA Posts: 305	Chevrolet Camaro Coupe and Convertible 323 hp (241kW) @ 6800 SAE Certified Chevrolet Impala Police Vehicle 302 hp (225kW) @ 6800 SAE Certified Chevrolet Impala 300 hp (224kW) @ 6500 SAE Certified Probably exhaust, the manifolds are likely different and the air intakes/manifold might have more bends in the Impala.