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Generation V External Engine LT1 Bolt-Ons | Intakes | Exhaust | Ignition | Accessories

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Old 05-26-2013, 07:44 PM   #1
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Default LS3 vs Gen V LT1 horsepower and torque graphs

Hey guys,

GM published this comparison graph of the LS3 and Gen V LT1 a while back (engine dyno data).

Click the image to open in full size.

You can see better torque across the board and more high rpm power.
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Old 05-27-2013, 03:42 PM   #2
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I thought the new lt1 was going to have less CI?
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Old 05-28-2013, 08:45 PM   #3
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Quote:
Originally Posted by sweet99ss View Post
I thought the new lt1 was going to have less CI?
thats a really old rumor
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Old 05-29-2013, 09:10 AM   #4
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I wonder if the exhaust bolt pattern is the same as the LS heads...the new "headers" would be perfect for a rear mount setup.
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Old 05-31-2013, 04:18 PM   #5
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Something aint right there...HP and torque do not cross at the same RPM for each motor

The LS3 looks like its at about 5250, but the LT1 is clearly higher in the RPM range...
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Old 06-01-2013, 12:14 AM   #6
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Quote:
Originally Posted by Mike@Diablosport View Post
Something aint right there...HP and torque do not cross at the same RPM for each motor

The LS3 looks like its at about 5250, but the LT1 is clearly higher in the RPM range...
That's what I was thinking also, I wonder what happened with that.
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Old 06-01-2013, 10:10 AM   #7
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This isn't horsepower and lb/ft. This is kilowatts and newton meters. They don't necessarily cross at 5252. I've overlooked that before myself.
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Old 07-26-2013, 07:33 PM   #8
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They look very very close in terms of shape but the lt1 is just fatter all the way across
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Old 08-07-2013, 06:48 AM   #9
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I for one call it BS and a drawing. Let's actually see the "Engine" graph and not this crayon graph.
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Old 08-07-2013, 08:54 PM   #10
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^ You'll have to take that up with the GM engineer who made the chart...
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Old 08-08-2013, 03:46 PM   #11
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It's all marketing...GM is not going to tell you the LS3 is a better engine. From what I can tell, the LT1 is nothing more than a direct injection LS engine. I hate how they keep comparing it to the 427...If it was making the same power with less cubes, that would get my attention.
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Old 08-09-2013, 10:58 AM   #12
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Quote:
Originally Posted by Mike@Diablosport View Post
Something aint right there...HP and torque do not cross at the same RPM for each motor

The LS3 looks like its at about 5250, but the LT1 is clearly higher in the RPM range...
The HP and Tq scales could be different, so it might not reflect the cross at the exact location.
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Old 08-10-2013, 12:39 PM   #13
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Quote:
Originally Posted by badazz81z28 View Post
It's all marketing...GM is not going to tell you the LS3 is a better engine. From what I can tell, the LT1 is nothing more than a direct injection LS engine. I hate how they keep comparing it to the 427...If it was making the same power with less cubes, that would get my attention.
just your assumptions are.. well.. wrong. heads, intake, cam.. all different from the LS3. the block itself is very different even if more in an evolutionary sense. the LT1s comparison to the LS7 is the same as sbc's being compared to bbc's when they make similar torque, etc. but please, tell us all with your knowledge of how the LS3 is 'better'. sounds more like you think the LS series is better simply because you know wht it can do.
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Old 08-14-2013, 08:20 PM   #14
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Quote:
Originally Posted by Jenson View Post
I wonder if the exhaust bolt pattern is the same as the LS heads...the new "headers" would be perfect for a rear mount setup.
Possibly. The flange looks similar, however they did flip the intake and exhaust ports, so you never know.
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Old 08-14-2013, 08:20 PM
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chart, corvette, curves, dyno, engines, gen, graph, horse, horsepower, ls, ls3, lt1, power, torque, vs


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