Official - 2014 Corvette Stingray Cranks Out 460 Horsepower
05-28-2013, 12:53 PM
#41
Burning Brakes
I'm expecting no less than 30.
05-28-2013, 12:56 PM
#42
Instructor
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I do wonder if HP is being held back to give a better buffer for the HIPO models. If the base C7 had say 480HP, then what would a Z07 need 550HP? Then would a ZR1 need closer to 650? Just a thought...
05-28-2013, 12:57 PM
#43
I'm very happy with the power numbers, and I'm actually really excited to feel that TQ (let's face it, that's what you feel on the street). The only thing i'm not really understanding is how the NPP is only getting 5hp/5tq? Was hopping for the same if not more as the C6?
One other thing to take into consideration, this thing is more than likely going to get more power to the wheels than the C6 did. In other words, it will have less drive-train loss. Hell, the new electoral power steering alone should be good for 1%hp increase to the wheel. Over all, its going to be a step forward, and I CANT WAIT to get mine on that liquid gold.. E85 baby! YEAH!
One other thing to take into consideration, this thing is more than likely going to get more power to the wheels than the C6 did. In other words, it will have less drive-train loss. Hell, the new electoral power steering alone should be good for 1%hp increase to the wheel. Over all, its going to be a step forward, and I CANT WAIT to get mine on that liquid gold.. E85 baby! YEAH!
05-28-2013, 12:58 PM
#44
Burning Brakes
I'm very happy with the power numbers, and I'm actually really excited to feel that TQ (let's face it, that's what you feel on the street). The only thing i'm not really understanding is how the NPP is only getting 5hp/5tq? Was hopping for the same if not more as the C6?
One other thing to take into consideration, this thing is more than likely going to get more power to the wheels than the C6 did. In other words, it will have less drive-train loss. Hell, the new electoral power steering alone should be good for 1%hp increase to the wheel. Over all, its going to be a step forward, and I CANT WAIT to get mine on that liquid gold.. E85 baby! YEAH!
One other thing to take into consideration, this thing is more than likely going to get more power to the wheels than the C6 did. In other words, it will have less drive-train loss. Hell, the new electoral power steering alone should be good for 1%hp increase to the wheel. Over all, its going to be a step forward, and I CANT WAIT to get mine on that liquid gold.. E85 baby! YEAH!
Probably more drivetrain loss with that damn steel torque tube.
05-28-2013, 01:02 PM
#47
Safety Car
Given the technology they added, and the results they've gotten in the past with even smaller engines I totally understand people thinking that with all the other improvements they've made.
However it seems the goal here wasn't to just keep going on the path they have been and getting a high peak number, the goal was to make the car as fast as possible by adding great power under the range, peak hp be damned.
However it seems the goal here wasn't to just keep going on the path they have been and getting a high peak number, the goal was to make the car as fast as possible by adding great power under the range, peak hp be damned.
05-28-2013, 01:04 PM
#49
Team Owner
I'm waiting for Haltech to come in here since he made a thread claiming 525hp out of the LT1. 
05-28-2013, 01:07 PM
#50
Le Mans Master
05-28-2013, 01:08 PM
#51
Melting Slicks
I'm very happy with the power numbers, and I'm actually really excited to feel that TQ (let's face it, that's what you feel on the street). The only thing i'm not really understanding is how the NPP is only getting 5hp/5tq? Was hopping for the same if not more as the C6?
05-28-2013, 01:10 PM
#52
Team Owner
I'm a little surprised tq starts to fall off after 5k vs. 6k for the LS7. You would think with vvt the tq curve could be extended farther up the RPM range. I do recall however, reading somewhere that the DI benefits exist primarily at lower RPM ranges. I believe Toyota's BRZ uses DI for engine speeds < 4500 then switches to port injection for RPM > 4500. I wonder how much DI has to do with the tq range being at lower speeds than we are used to with port injection? Engineers??
In normal everyday driving that great torque at low RPM's in the LT1will feel like a rocket ship, but accelerating WOT for 1320 feet, the LT1 will only be at that great low end torque up to 36 MPH(Z51) in first gear. After that, shifting at 6500 RPM, the engine will never fall below 4600 RPM where as the LS7(Z06) will be running in the 4600 to 7000 RPM range where it has 470 lb-ft of torque available in each gear, even if the torque has dropped a little from 6200 RPM to it's 7000 RPM redline.
At 6,000 RPM the LT1's torque has dropped to 400 lb-ft whereas the LS7's torque is still at 470 lb-ft(up to 6200 RPM). 80 lb-ft off torque lower than the LS7 at 6000 RPM. Compare not only the peak torque of the two engines but look under the torque curve.
Last edited by JoesC5; 05-28-2013 at 01:21 PM.
05-28-2013, 01:10 PM
#53
Burning Brakes
Can't wait to see what kind of power we pick up with boltons 
Also if we can put a bigger cam in while still keeping VVT/DOD. I doubt it, but if we can put a small cam in for a 20rwhp bump, that would be great. I think all VVT owners (camaro automatic) have had to swap to standard lifters and get rid of VVT.
Also if we can put a bigger cam in while still keeping VVT/DOD. I doubt it, but if we can put a small cam in for a 20rwhp bump, that would be great. I think all VVT owners (camaro automatic) have had to swap to standard lifters and get rid of VVT.
05-28-2013, 01:15 PM
#54
I'm a little surprised tq starts to fall off after 5k vs. 6k for the LS7. You would think with vvt the tq curve could be extended farther up the RPM range. I do recall however, reading somewhere that the DI benefits exist primarily at lower RPM ranges. I believe Toyota's BRZ uses DI for engine speeds < 4500 then switches to port injection for RPM > 4500. I wonder how much DI has to do with the tq range being at lower speeds than we are used to with port injection? Engineers??
05-28-2013, 01:18 PM
#55
Le Mans Master
One thing I notice (and this is a very good thing) is the discussion has quickly pulled in the LS7 powerplant. For an entry level, it's nice to see it's in good company when a discussion about it's potential begins.
05-28-2013, 01:24 PM
#56
Burning Brakes
Lots of great comments in this thread.
I wonder if we'll see a bump in power a year or two down the road.
Very excited to see the L88 in January. Sure hope that's the reveal schedule...
I wonder if we'll see a bump in power a year or two down the road.
Very excited to see the L88 in January. Sure hope that's the reveal schedule...
05-28-2013, 01:25 PM
#57
Drifting
The 2014 Corvette Stingray’s all-new LT1 6.2L V-8 engine is SAE-certified at 460 horsepower (343 kW) at 6,000 rpm and 465 lb-ft of torque (630 Nm) at 4,600 rpm, with the available performance exhaust system, Chevrolet announced today.
The Stingray is SAE-certified at 455 horsepower (339 kW) and 460 lb-ft (624 Nm) with the standard exhaust system. They are the highest standard power ratings ever for the Corvette, delivered with efficiency that is expected to exceed 26 mpg on the highway.
“The 2014 Corvette Stingray’s LT1 engine is a triumph of advanced technology, delivering more power and torque than ever before with greater efficiency,” said Jordan Lee, Small Block chief engineer.
“The LT1’s performance complements the Corvette’s low mass with a tremendous feeling of power that builds as the rpm climbs. Drivers will experience more power and acceleration than ever before with the standard engine – in fact, its power and torque surpass many uplevel engines offered by competitors.”
At 74 horsepower per liter, the LT1 has greater power density than the C6 Corvette’s LS3 6.2L engine and even the C6 Z06’s racing-derived 7.0L LS7. It also produces comparable torque to the LS7 – up to 4,700 rpm – and its peak torque is within 5 lb-ft of the 7.0L engine. That torque is generated early and sustained across the rpm band, with 316 lb-ft available at only 1,000 rpm and 90 percent of peak torque available from 3,000 rpm to 5,500 rpm – giving the lightweight Corvette Stingray excellent acceleration at all speeds.
Chevrolet estimates the Corvette will run from 0 to 60 mph in less than four seconds.
Full Story
Dave
The Stingray is SAE-certified at 455 horsepower (339 kW) and 460 lb-ft (624 Nm) with the standard exhaust system. They are the highest standard power ratings ever for the Corvette, delivered with efficiency that is expected to exceed 26 mpg on the highway.
“The 2014 Corvette Stingray’s LT1 engine is a triumph of advanced technology, delivering more power and torque than ever before with greater efficiency,” said Jordan Lee, Small Block chief engineer.
“The LT1’s performance complements the Corvette’s low mass with a tremendous feeling of power that builds as the rpm climbs. Drivers will experience more power and acceleration than ever before with the standard engine – in fact, its power and torque surpass many uplevel engines offered by competitors.”
At 74 horsepower per liter, the LT1 has greater power density than the C6 Corvette’s LS3 6.2L engine and even the C6 Z06’s racing-derived 7.0L LS7. It also produces comparable torque to the LS7 – up to 4,700 rpm – and its peak torque is within 5 lb-ft of the 7.0L engine. That torque is generated early and sustained across the rpm band, with 316 lb-ft available at only 1,000 rpm and 90 percent of peak torque available from 3,000 rpm to 5,500 rpm – giving the lightweight Corvette Stingray excellent acceleration at all speeds.
Chevrolet estimates the Corvette will run from 0 to 60 mph in less than four seconds.
Full Story
Dave
05-28-2013, 01:27 PM
#58
Team Owner
Given the technology they added, and the results they've gotten in the past with even smaller engines I totally understand people thinking that with all the other improvements they've made.
However it seems the goal here wasn't to just keep going on the path they have been and getting a high peak number, the goal was to make the car as fast as possible by adding great power under the range, peak hp be damned.
However it seems the goal here wasn't to just keep going on the path they have been and getting a high peak number, the goal was to make the car as fast as possible by adding great power under the range, peak hp be damned.
I believe they succeeded as they did improve emissions and fuel economy and maintained the cars performance level at the same time.
05-28-2013, 01:30 PM
#59
Team Owner
When GM announced the LT1 to the public last year, GM compared the LT1's torque to the LS7's torque. GM opened the door for any comparisons that are being made between the two engines, good or bad.
05-28-2013, 01:30 PM
#60
"Stop-watch internet bench racing " aside, the general rule is you need 8-10% more horsepower to " feel " a seat of the pants difference , so the difference between 460 and say, 500 ( 9% gain) would be noticed , not 460 and 470-475 ( 2-3 % gain) , assuming similar TQ curve shapes.
Last edited by usroute66 MKW; 05-28-2013 at 01:33 PM.