...snip...
Road and Track: Chevy says the [2014 C7 HP/Torque] figure is "comparable" to the LS7 engine presently found in the Corvette Z06.

Wow. Really? The C7 stock LS1 matches the performance of the 2013 LS7 427? And with the C7 performance exhaust the 2014 C7 is "more" powerful than the 2013 Z06? Really?

Can people who know more about this than I do confirm this?

Is this true? We are getting more performance than a LS7 with the Z51 package and the performance exhaust? The LS7 is an awesome engine. But it looks like Chey hit a home run on the LS1. I wanted to confirm this, so I overlayed the dyno from the LS7 with the stock LS1 (non-Z51 non-performance exhaust) and the picture below is the result.

Can this be true?

Can others confirm this. This is a bit hard to believe, but I overlayed the dyno sheets and this is what I am seeing. Am I doing something wrong, or is this indeed fact? Nick

 

Firstly it is the LT1 not the LS1.


The car manufactures torque very similar than the LS7 does, they are surprisingly similar but overall I'm not sure it's notably better than the LS7 but it sure is a great competitor.

 

What GM says is that the tourque curve between the two engines is similar between the areas most people drive in. (1k-4k RPMs) Higher up than that, the LS7 pulls more because of it's high-winding nature.

 

Road and Track: Chevy says the [2014 C7 HP/Torque] figure is "comparable" to the LS7 engine presently found in the Corvette Z06.
This is correct.

Wow. Really? The C7 stock LS1 matches the performance of the 2013 LS7 427?
This is NOT correct.

And with the C7 performance exhaust the 2014 C7 is "more" powerful than the 2013 Z06? Really?
The LT1 is not as powerful as the LS7

Can people who know more about this than I do confirm this?
Look at the Tq Curve comparison. Down low, the LT1 makes as much TQ as the LS7 does down low. Up top the LS7 is stronger.

Is this true? We are getting more performance than a LS7 with the Z51 package and the performance exhaust?
THis is incorrect.

The LS7 is an awesome engine. But it looks like Chey hit a home run on the LS1.
LT1 not LS1

I wanted to confirm this, so I overlayed the dyno from the LS7 with the stock LS1 (non-Z51 non-performance exhaust) and the picture below is the result.

Can this be true?

Can others confirm this. This is a bit hard to believe, but I overlayed the dyno sheets and this is what I am seeing. Am I doing something wrong, or is this indeed fact?
It is more impressive in graphical form rather than numerical form.

 

Umm.. also the new LT1 is not a 350. It is a 6.2L or a 376.

 

Lol, noobz...

 

4-7k is where the LS7 with it's larger cam, better heads and more cubic inches pulls away from the LT1 even though it has higher compression, DI and VCT.

 

Very cool.
Sorry, 376 not 350 and..
LT1 not LS1
Still getting my terms into the 2014 timeline.

Thanks for the correction and the confirmation.
And I see that real users are getting well in excess of 30 MPG on flat constant speed drives at speed limit speeds.

One word summary: Wow!!

Sorry for the LT! and 376 errors.
I must be still living in C4-5 land.
Thanks for the correction

 

A new member trying to get an understanding.
The lt1 keeps up till you hit 4k. But problem is all your racing is above 4k
once your off the line. This is where the extra 50hp and higher redline come in. Lighter car more power is going to pull away.
This is the koolaid people drink then say it's as fast.
Lets stick with the C-6 to compare to instead of the Z cars.

 

But all your street driving is below 4k RPM. So the new car delivers similar satisfaction on the street without having to wind the **** out of it. I own the new car as well as a 585hp Z.

 

ALL your street driving maybe below 4k mine is not!
You don't have to wind the ls7 either! but I am used to 700plus and 638 under the hood!
With that not winding anything. Supercharging with a 427 and Centri limit's the winding. I short shift because it has more than the LT1
has period at 2200 rpm.

 

Agree. This is my primary question. Yes, new to forum and trying to understand, but soooo not new to the Vette. This is my 5th one. The last was a Lingenfelter that would pull away from a Viper.

But, at the end of the day. How much of "MY" driving is above 4,000 RPM. Well, lets see. I recall one time in 1989 I was above 4000. And then there was that time in 2001 and again in 2010 both on empty highways. So, I do, once every 10 years or so, get it above 4000 in a drive. And I do shift it once in a while above 4K just for fun. But all in all, I have to agree, 99.3% of MY driving is below 4K. I manly dirve it on day and weekend trips, not in town a lot. And I really have zero plans to race it. None of my vettes have ever seen a race track except from the distance stare out of the parking lot at Elkhart while I sat in the stands.

So for us non-racers, it would seem to me the Chevy announcement is correct and your experience as an owner of both vehicles confirms it. The 2014 is, as Chevy says, essentially the equivalent of the 427 2013 (with caveat - under 4,000 RPM).

Well.... Wow... Chevy, that is a home run in my book. A 376 that behaves like a 427 below 4K. And, as a large extra bonus gives over 30MPG on the highway at limit speeds. Another "Wow" in my book. And, for those wonderful racers who want more, they have the large and better new Z06 or ZR1 when they hit the streets. All around win win win I think.

Now, where did I put my crystal ball? Oh, here it is. Ahhhh, okay, it looks like that as soon a Lingerfelter opens their 2014 Vette Mods shop the first of Feb, we will see what they can do to this one as well. I will check Ken's web site to see what they are offering in the way of C7 magic in just tick-tick-tic 13 more days. I feel like a Pavlov dog. Wooo hooo from Wisconsin. Come on Ken. We are rooting for you. See you in Decatur.

Only problem here is, of course, this super long Wisconsin winter that just lingers on and on and on, with a C7 sitting in the garage. Can't wait to move out of this state when I retire in a couple of years.

Have a great day and.... go chevy go.

 

the 6.2 is better than that old ls7.

 

Is this a serious post ?


You bring your car above 4 thousand rpm once every 10 years? I guess different strokes for different folks. It's not a Buick it's a sports car !

Gotta blow some of that carbon out 6500 rpm baby !! My car sees it almost every time I drive once the oil gets up to temp.

 

Filling the Corvette stereotype nicely.

 

Sounds like you really need a Honda Civic. They get great MPG.
Wanting more than 30 MPG? Or even 30MPG Your going to be disappointed.
Woohoo when you only take your car over 4k once every ten years?
Likely will scare you!

 

I know you are not serious, and you must have been laughing the whole time you wrote this. I had trouble keeping mine below 4k for just the 500 mile break-in period, 10 years, LOL! Funny guy.

 

The C6 Corvette LS3 grand sport around the speedway was about 6s slower than the C6Z. The new C7 LT1 is about 3s slower still. While it looks great on paper up to a point, as Steve mentioned, the bigger CI and and higher flowing heads really take hold and pull away. Regardless, the motor is an amazing achievement and has really advanced the simple OHV V8 engine. Now, the C7Z06 has just blown the bar away!

 

Ben, you really are the great Kazoo!! LOL, you are everywhere loll

 

At least 75% of the Corvette owners that I know fit into this category. One of the reasons you don't want to buy a used car from them.

Bill