sam90lx

Agreed! Just hope it is not FI.

BeaZt

I was actually going to wait on the Performance version but I changed my mind and decided to go with the Z51. Decided to continue pouring that extra money into the 67 Chevelle. All bets may be off once the Performance StingRay arrives though. LOL

RC000E

Yet again...there you are, preaching to the masses of stupidity, saving me work.

These people Kappa...these people...they just can't handle simple matters. This is all too complex for them.

They don't understand:

ESTIMATED
PEAK HP ISN'T AN INDICATOR OF ANYTHING
POWER TO WEIGHT
MAKES THE TORQUE OF LS7 UNDER 4000 AND THAT'S JUST WHAT THEY ADMIT TO NOW

Let the goddamn company SAE certify the damn motor. Let them work with some management and see where the market is at. You think GM doesn't KNOW how much damn hp the mustang has. You think they don't KNOW they need to have certain hp figures for all the people who judge a car by the hp number on the fender batch and nothing further.

Though they are smarter than all of you, they'll cater to your simplicity...don't worry.

Aaron Keating

What are you doing to the Chevelle? Any plans yet, or just general thinking about it?

Xtreme Z06

To the OP, I highly doubt it will be the WHP rating as that is not how the rate power for cars. Crank HP gives you a higher number so its more favorable.



Again, the motor is not SAE rated and GM has thrown out a number that doesn't really seem all that much. But there is a method to the madness. If you read red2012's post, you can see that he is just posting with the hint of emotional bias that is quite frankly unsubstantiated. Its also doesn't make sense, sorry red2012. It is you that doesn't understand. As of right now, GM needs to sell the remaining C6 lot. Potential buyers would most likely wait to buy the C7 which would force GM and Dealers to reduce the asking price of this final lot. It still cost them the same amount of money to produce and losing out on that profit is not an option if they can help it.

There is a synergy at work here.. GM would much prefer you to keep guessing on performance figures as they can wait till the end of summer. Only little bits of info will come out until the final weeks of release. In the meantime, they will most likely have a decent sale on remaining corvettes starting in march when summer driving fever hits the car guys hard. Besides, there are a few of us that will wait till year 2 and 3 passes in case there are refinements made.

Then the data will hit the fan and I wouldn't be surprised if GM OVER PERFORMS the corvette. This is do or die for GM, why else would they have gone to great lengths to radically change it? The vette is in trouble and GM is still in hot water.

Its about the bottom line, ultimately.. That is the reason why most people don't understand companies. You don't know what is happening behind the curtain. You don't have their market research and figures; plus I am sure most of your are not corporate execs.

And another thing.. Why would anyone ignore the fact that this new LT1 has about the same torque curve numbers as a LS7?? 50 Lbs/tq over a LS3 is not a big deal? With better fuel economy?

Furthermore, HP and TQ is not the end all and be all of performance. How the suspension puts that power down may be another reason for those 0 to 60 times. God knows that is why the GTR can achieve such great numbers. Not just because its AWD you know.

Kappa

Try convincing 99% of the people on this forum that they aren't smarter than GM engineers. Especially the ones working on the C7 and have all sorts of factors to consider besides how much hp the new Mustang has. Won't happen.

Daekwan06

So GM has been publicly testing the C7 for a year now. And testing it in privately longer than that. We've seen the C7 driven both camo'd and uncamo'd. They showed the car at the Detroit National Auto show, the Today show in NYC, and the Barrett Jackson auto show in Arizona. There's a black and a blue one running around highways uncovered. And they even have their own private test track where they push it to the limit. After all this.. they've publicly stated several times that the 0-60 times will be under 4 seconds. And will be spending $130 million to retool the factory to build the C7 with next month.

Yet you call BS and arent 100% sure? How much more research do you think they need to do? What do you think will be changed this late in the game?

I think you might need to look up the definition of BS, my friend. And then take a good look in the mirror. Because GM isnt the one spewing it.

sam90lx

Whatever Dude, you win! Your threads are tiring me!

RC000E

Most people here lost you at "SAE" then continued thinking 450 sucks, you suck, GM sucks and they love Obama cause he's a patriot and a damn fine american.

Kappa

Please, no one on this site likes Obama except for me probably.

BeaZt

1967 Chevelle it had a 327 (still got it) I was all on the LS Engine craze then I decide to go back to big block. I have a 502 with some goodies now but I want to go bigger. It was a drag car but in 2011 she got an Art Morrison frame, and a whole bunch of DSE goodies. She needs whatever engine I am going to go with and the interior done, along with new glass. I plan on having her ready by the power tour. I have also picked up a 1966 Chevelle (Vert) and a 1970 Chevelle.(Both in terrible shape) Will probably put an LS in both of those. These are to be my two sons first cars. I want to build them together with my sons. My ultimate dream is to open a restoration and speed shop, 5 year plan, and leave corporate America in about 7 years.

Sorry for typing all of that, but I get passionate about it and want to pass the passion to both of my boys. My 19 year old daughter...she's not going for it lol

SBC_and_a_stick

So what if 450hp is a bit understated. The last LS3s to leave the factory are also understated a bit. The competition, BMW, Porsche, AMG are also understated a bit. It being a low bound of sorts is not unusual so for all practical purposes thinking of it as a 450hp motor is probably very much in line with comparisons one could make on the market today.

Why not be honest about it? I wanted more, I think everyone did. The moment I heard they were using DI I was hoping for more than 450hp.

glass slipper

If torque is what accelerates a vehicle, we would all put Duramax diesels in our Corvettes. If torque is what accelerates a vehicle, the Ľ mile ET and MPH formulas would use torque, not HP. The definition of HP is it's a measure of the "rate" at which an engine does "work". To increase the speed of a vehicle, you have to add kinetic energy...the faster you add kinetic energy, the faster you accelerate. HP is energy/work divided by time so the more HP you have, the faster you can add kinetic energy and the faster you accelerate. Don't confuse F=ma with accelerating an object over a period of time...nowhere in that formula is there a time component. I can push on a 10' long pipe with 100 lbs to produce 1000 lb-ft of torque but a little 5 HP Briggs & Stratton engine developing 6 lb-ft of torque will easily out accelerate me...nowhere did I say how fast I was rotating that long pipe. If I could rotate it at 1.3 RPM, I would produce Ľ HP...5 HP will kick my azz every day.

BTW, HP is not solely a function of torque...they are mathematically related but you can measure either one independently and calculate the other. HP is its own entity and in US terms, 1 HP = 550 lb-ft/sec or stated another way, it's equal to raising 550 lbs one ft in one sec. Pure inertia chassis dynos measure HP first and then calculate torque.

Physics lesson over...

Aaron Keating

I blame Ch@os (I think that's how his name on here is spelled?) for tempting me to go looking for my state's real tree. (A Camaro wrapped around a tree) to stuff an LSX into my C4 at some point with.

I'm managing to resist the temptation for now, but god help me if I ever find an LSX manifold that looks as bad *** as the TPI's intake, because then I'll have no excuse not to do it once I get another car to drive around. (which I'm currently looking for right now too)

Might I make a suggestion since you've already gutted the car? Go Duramax With a mild tune and setup from Gale Banks, you can have it pushing like 660+ and almost a full 1k ft lbs. I saw a Duramax Chevelle once, and it was so bad *** that I swear the guy next to it in a restod Porsche's nuts were shrinking back so hard that they were trying to come up his throat. The best part was the guy makes like 29mpg highway with it to.

The 502 you have, is it a ramjet 502? Did you get to drive the car with it in, and if so, how streetable was it?

vandyke

I'm obviously a noob on this site. Never post. I feel they are going to push fuel economy more than many think. They release with 450ish HP but thrown down 30+ hwy and 20city. Those would be amazing #s to tree huggers and power heads alike. Amazing performance, aesthetics, improved interior, and you can cruise around with an avg fuel economy in the upper 20s.

I'll fully admit, I used the left hand extraction method but even though I'd love to see 500hp in the base model...mass appeal has a fuel economy component.

BeaZt

If you are talking about that Green 70 chevelle with the duramax, that is pretty badass! It's not a ramjet 502, it's just one that I traded for and tinkered with. I am leaning towards a stout 555 or something over 600 cubic inches.. I've been in contact with NRE quite a bit but have yet to pull the trigger, mainly trying to wait and see what this new Stingray is going to cost.

Aaron Keating

This is a pretty mild setup of one.


The only reason we don't put them in our vettes is because the engine is so heavy. (+300 over a traditional SBC fully dressed)
RPM and HP ain't everything

Just imagine what that would be like in a vette or F body, vs a Chevelle or pickup truck.

Kratos-TM

Who freeking wants to wait 2 years? LOL

Aaron Keating

The one I got to see was pearl white with ghosted racing stripes. Scary fast.
Well there is always the 572 (does GM still make that? It's been a couple of years since I picked up one of their catalogs).
I figured Duramax might be up your alley since alot of the Chevelle guys are switching over to it, the thing weighs as much as a big block so it's not like they are wounding the car's handling most of the time. Get you some mpgs back too

I'd love to get my hands on a 502 ramjet at some point. I know it's probably never going to happen but man that's a sweet intake. I'd get one just for the intake

Destrukt

No one, but don't be one of those people with "regrets" after you buy the first year model when they release some upgrades a year or two down the road. Don't forget about the first year "bugs" that may occur. I can recall many people wishing they would of waited for the C6 Z06 or the C6 GS. Unless of course, you have money falling from trees Just saying, each to their own, BUT I will be waiting