The idea started from another thread when we went off topic and compared the V10 M5 to the LS7.

So now I'm going to compare few other engines outputs to the LS7.
I gathered chassis dyno for cars that are running these engines. All these are stock and done on a Dynojet except the Carrera GT that was done on a Mustang Dyno which makes it even more impressive.

Please keep in mind that the AMG cars run an Automatic tranny.
Take these numbers and graphs for what it is... This is not a scientific research or anything like that.

These are the peak numbers:

5.7 Carrera GT V10 575rwhp @ 8000 411rwtq @ 6000
5.0 M5 V10 421rwhp @ 7600 311rwtq @ 6200
7.0 LS7 V8 448rwhp @ 5700 420rwtq @ 4800
6.2 V12 Murcielago (Awd run) 433rwhp @ 5700 390rwtq @ 5600
5.0 V10 Gallardo (rwd run) 415rwhp @ 7800 335rwtq @ 4700
5.5 AMG 55 (SC) 420rwhp @ 5000 460rwtq @ 3000
6.0 AMG 65 (TT) 528rwhp @ 4900 709rwtq @ 2500
8.3 V10 SRT10 447rwhp @ 5500 500rwtq @ 4000
5.4 V8 Ford GT (SC) 515rwhp @ 6200 481rwtq @ 3600



If you don't remember the advertised ratings for these cars they are as follow:

Carrera GT 605HP 435TQ
M5 500HP 383TQ
LS7 505HP 470TQ
Murcielago 571HP 480TQ
Gallardo 500HP 376TQ
AMG 55 469HP 516TQ
AMG 65 612HP 737TQ
SRT10 510HP 525TQ
Ford GT 550HP 500TQ

Now the fun part.... Look at the rwhp curves of all the engines layed on each other in one graph.

RWHP Comparison

Here are the rwtq curves for all the engines layed on top of each other in one graph.

RWTQ Comparison

Its interesting to see how the LS7 fair against the best engines out there. As you can see there are three high revving engines (Carrera GT, M5 and Gallardo) and they make most of their power up top with a really nice flat TQ curve... Then you have three low down TQ monsters (AMG 65, AMG 55, Ford GT and SRT 10)... At the end you have the engines that perform well in all ranges of the power band which include the LS7 and again the SRT 10 as well AMG 55 and Ford GT engine. I was surprised at the Murcielago results... i expected more out of it, but keep in mind its the only car that ran on AWD mode so the drivetrain loss is the highest among the rest of the cars.

What started to be a debate on which engines is better between the LS7 and S65 M5 V10 engine led us to these results. Looking at the results we can see that the LS7 is beaten by at least 4 engines while the M5 V10 engine is outgunned by most of the engines listed.

It is interesting looking at the M5 and Gallardo HP and TQ curve since both engines are using a N/A 5.0 V10. The Gallardo engine has a better TQ and HP curve until 7K RPM+ where the M5 catch up.

Engines i would love to add, but couldnt find any dyno runs for them are the Enzo and the new AMG 63.

 

Now do a cost comparison of the engines. I'd expect the LS7 engine to cost much, much less than any of the other engines.

 

interesting info

 

You got that right. An entire LS7 could be bought for less than the cost of one cylinder head for any of the other engines, except maybe the Ford and Dodge.

 

cost-wise, add a small SC'er or turbo and, well, the LS7 makes them all look like crapola

 

nice post LSs1Power

 

True cost wasnt factored in, but the idea was just performance from this comparison. The Carrera GT engines doesnt shine until 5500 RPM.... Look at the AMG 65 engine... 700rwtq at 2900 RPM .

 

Pretty neet to see them overlayed! Whos can get a cost comparison?

 

Cool comparison! You should enlarge the graphs a bit so they'll be easier to read.

 

I wanted to add cost and weight, but couldnt find all the information needed. It would have been nice to see everything in one graph.

 

Good stuff. How about 0-60 comparo and 1/4 mile times? That would make a cool graph.

I wanna see real world performace data.

 

I take those rwhp numbers with a grain of salt unless they were all done on the same dyno on the same day.

 

True, but cool info nonetheless Those numbers aren't SAE are they?

 

Ill take a Carrera GT in silver and a AMG SL65!

How much do you guys think the Carrera GT motor costs?

 

$78,000

 

All SAE numbers done on a Dynojet except the Carrera GT was done on a Mustang Dyno.

 

The idea was comparing engines... not cars.

 

Probably $100,000 +, hell, probably $200,000 +, if they'd even sell one to you.

 

Thats cheap

 

the term cheap is relative...lol. I wish I could think of 78k as cheap