Originally Posted by Aliquantus

I think I'm going to head over to the track tomorrow, I haven't been to the strip with this car and am really curious just what this thing can do.

Originally Posted by echelonphoto

Having owned seven vettes in the last 10 years....its not just asbout peak power....the ls3 is much more driveable day to day because of the broader torque curve and the fact that they really improved heat soak on this engine...my old ls2 car would really run like a dog on hot summer days...the ls3's...no problem. Also the better trans makes quite a difference too.

Originally Posted by Sic Liter

Wrong. You statement makes no sense. Trap Speed tells you what your hp to weight is.

Originally Posted by sic liter

people like rusty is why i started this discussion. Like i stated before better hope you are a good driver because it ultimately comes down to the driver in order to get that car length.

Originally Posted by Sic Liter

I forgot to mention that the LS2 also has a flatter torque curve than the LS3. A flatter torque curve will give you better acceleration over a broader range of engine speeds.

Originally Posted by mtarr07

It does not come down to the driver or else the ls2 and ls3 time would have, on average, the same trap speed and 1/4 mile time.

The times clearly show that on average, with the average driver, the ls3 is faster.

So by default, the ls3 is faster.

Originally Posted by Sic Liter

I just did an average trap calculation between the LS2 and the LS3 data from the list you provided. The average trap for the LS2 was 112.05 mph, the average trap for the LS3 was 115.83 mph. Trap speed tells you what your HP to weight is. My math comes out to be 115.83/112.05 = 3.37%. The LS3 is 430 hp, so 430*(0.9663) = 415 hp for the LS2. 15 HP difference means it ultimately comes down to the driver.

Originally Posted by mtarr07

I think at this point the market is just so flooded with C6s for great prices that there isn't really a price difference from 2006-2009 cars for example. It comes down more often to that specific seller and what they want to get for their car. So why not get the newer one with more power if everything else is equal?

I think you're diving a bit deep with your analysis based on ONE data point. Maybe the LS3 is underrated? Maybe neither of them are? Who knows?

What I do know is that real world data consistently proves that the LS3 car traps 4-5mph higher than LS2 cars. Look at the tops 1/4 mile list for both from this very forum.

Showroom Stock LS2 (2005 -2007)
12.215 @ 115.45 - LS1LT1 - 06 A6 - (1278)
12.235 @ 115.58 - 06C6FVR - 06 M6 Z51 - (333)
12.290 @ 114.29 - Proney - 07 M6 - (4500)
12.314 @ 114.82 - CYA Vett - 05 M6 F55 - (675)
12.422 @ 113.90 - DrRichie - 05 M6 Z51
12.499 @ 114.90 - Jschindler - 05 M6 Z51
12.53x @ 113.00 - Wicked07C6 - 07 M6 Z51 - (914)
12.540 @ 113.59 - Tony 63 Vette - 06 A6 - (1510)
12.548 @ 113.74 - Tony96LT4 - 06 A6 Z51 - (1149)
12.56x @ 113.39 - Red Sleeper - 06 A6
12.56x @ 112.00 - Orange C6 - 05 A4 Z51 - (56)
12.650 @ 111.65 - Zippin Zee - 05 M6 Z51 - (48)
12.665 @ 113.03 - Mdrrandall - 07 M6 Z51 - (1675)
12.693 @ 114.88 - Prankster - 06 M6 - (1621)
12.69x @ 112.32 - Silverlx - 06 A6 - (872)
12.703 @ 112.43 - Jelsis - 06 A6 Z51 - (452)
12.70x @ 113.00 - Blackmajik - 07 A6 - (1627)
12.71x @ 111.30 - Flyin05 - 05 M6 Z51
12.71x @ 111.00 - Demented - 05 A4 Z51
12.74x @ 108.67 - Shooter 49 - 05 A4 3.15 - (39)
12.756 @ 112.57 - C5Pilot - 07 A6 Z51 - (903)
12.757 @ 109.25 - Ponchorello - 05 A4 3.15 - (990)
12.795 @ 112.17 - Jchazr - 05 M6 Z51 - (447)
12.80x @ 111.00 - SheDevilC6 - 07 A6 Z51 - (1668)
12.81x @ 112.83 - Vette-oholic - 05 M6 Z51 - (494)
12.817 @ 110.95 - SkyKing - 07 A6 F55 - (2480)
12.85x @ 114.53 - Mr Z51 - 06 M6 Z51
12.917 @ 111.67 - Brewcitygymratt - 06 A6 - (4578)
12.936 @ 111.40 - DiggyMoe - 07 M6 - (965)
12.97x @ 108.00 - Ginny C6 - 05 A4 F55 - (56)
12.98x @ 108.00 - Tampa Vet - 05 A4 3.15 - (119)
12.99x @ 111.70 - C64ME - 05 M6 Z51 - (329)
13.04x @ 109.15 - TMyers - 06 A6 - (528)
13.054 @ 113.31 - RDunn - 06 M6 - (982)
13.10x @ 108.70 - Rothchilds - 05 A4 F55 3.15
13.12x @ 110.40 - JDWK - 05 M6 Z51
13.25x @ 110.60 - C6 Matt - 05 M6 Z51 - (118)
13.267 @ 108.59 - Sfadchi - 06 A6 Z51 - (884)
13.26x @ 105.30 - Joeking - 05 A4 Z51 - (657)
13.30x @ 107.00 - Shurite44 - 06 A6 Z51 - (764)
13.35x @ 108.10 - Phatpharmd - 06 A6 - (591)
13.62x @ 106.18 - Rich28 - 05 A4 Z51

Showroom Stock LS3 (2008 - 2013)
11.718 @ 119.94 - AndrewZPSU - 08 M6 - (2586)
11.806 @ 118.82 - Gmrulz - 08 A6 Z51, NPP - (3478)
11.974 @ 116.98 - Proney - 08 M6 Z51, NPP - (4652)
12.058 @ 122.05 - AndrewZPSU - 10 A6 NPP - (5051)
12.100 @ 115.19 - Odin - 09 A6 2.73 npp - (4325)
12.102 @ 117.60 - Dingrao - 08 A6 - (3561)
12.127 @ 116.59 - Pettvette - 08 A6 - (4278)
12.159 @ 115.59 - Old Goat - 09 A6 2.73 - (3708)
12.167 @ 117.15 - DarkOctane - 08 A6 NPP - (6310)
12.167 @ 116.54 - Vinsane112 - 08 A6 2.73 - (2740)
12.173 @ 117.59 - Marcho Polo - 08 A6 Z51 2.73 npp - (7213)
12.186 @ 117.72 - Hardhattg - 08 M6 Z51 - (2686)
12.201 @ 114.07 - DerekSDickens - 08 A6 2.73 - (7061)
12.237 @ 112.86 - 940CACC - 08 A6 - (2871)
12.244 @ 117.83 - 74Vette - 08 M6 - (4617)
12.305 @ 116.51 - JBrunoJC6 - 08 A6 NPP - (6722)
12.400 @ 116.36 - RandyDank23 - 08 A6 - (6059)
12.262 @ 115.22 - Oklahoma - 08 A6 - (3765)
12.276 @ 118.66 - EZ28 - 08 M6 Z51 NPP - (3247)
12.355 @ 117.47 - Bain - 08 A6 NPP 2.73 - (2755)
12.357 @ 116.94 - TNorman - 08 A6 NPP - (4227)
12.408 @ 116.11 - XtremeChubbles - 08 A6 Z51 - (6589)
12.409 @ 114.70 - Jschindler - 08 M6 Z51 NPP - (2132)
12.419 @ 116.15 - JTorchz06 - 09 A6 Z51 NPP - (3185)
12.412 @ 115.38 - HOXXOH - 08 A6 F55 - (2478)
12.428 @ 116.67 - Pea-Jay - 08 A6 - (4448)
12.494 @ 115.54 - 1.8T - 08 M6 Z51 - (2310)
12.500 @ 115.53 - Shane Fap - 08 A6 - (6298)
12.514 @ 116.73 - SK360 - 08 A6 2.73 - (6283)
12.552 @ 114.70 - Larry R - 08 A6 2.73 - (4054)
12.600 @ 114.12 - Beefcake - 08 A6 - (2875)
12.658 @ 114.99 - PhillyLS1 - 09 M6 - (3151)
12.668 @ 113.61 - CFP40 - 08 A6 NPP 2.73 - (2828)
12.689 @ 112.07 - Bfppt1 - 10 A6 - (5300)
12.747 @ 114.31 - Detoxx03 - 08 M6 NPP- (4057)
12.828 @ 113.20 - C6David - 08 A6 NPP - (6854)
13.354 @ 110.78 - M453W - 09 A6 NPP- (5708)
13.428 @ 109.32 - Dan Wendling - 09 A6 NPP - (4032)

Originally Posted by LoganExplosion

Sorry bud. They're definitely more different than just "comes down to the driver". GM took what the aftermarket was doing and applied it to the next generation. Larger bore, better intake, more aggressive camshaft, strengthened casting, etc. The results can be seen in post #3.
So don't come in here, with your anger and regret, trying to prove something to yaself!

torque curve looks similar to me!

Honestly, you have a C6. ENJOY IT!! Do you think the LS3 guys are saying the new LT1 just comes down to the driver? NO. It's the next generation with several advancements. If GM didn't advance the designs every generation, we'd all have blue flame I6 engines.




I researched and found the car I wanted to modify. That car has an LS3.

Originally Posted by Sic Liter

Looks like a dip at 3200 rpm for the ls3 lol. The LS2's curve is more flatter around that range with no dips.

Originally Posted by Sic Liter

Your LS3 engine is 430 hp. Your butterfly valves in your exhaust add 6 hp. Your car is 436 hp. From the trap data list provided it does not state which LS3 cars had the NPP exhaust option and which did not.

Originally Posted by Corvette_Ed

No, it's 436 HP. The exhaust contributes to engine HP, otherwise it wouldn't be called HP.