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The stingray should of had over 500hp to begin with, and the z06 over 700, once again gm fell short.
.........and fooled the masses at the same time. The turd C7Z can't even break the 200mph barrier while the "King of the Hill" with it's 635HP easily hits 205mph.
I'd personally prefer to see those numbers reversed.
I prefer the horsepower. If you desire more torque at the wheels, gear it down a little bit. When you have more horsepower, gearing down will give you more torque at the same speed. Win-win!
.........and fooled the masses at the same time. The turd C7Z can't even break the 200mph barrier while the "King of the Hill" with it's 635HP easily hits 205mph.
It's all about the amount of down force each car is producing, the Z
is producing more DF, therefore lower top end.
Some of you guys are tough! Decided to compare the power and torque curves-both from GM. I picked several points and estimated best I could from the graphs. Presented the results in a table.
Note peak torque occurs at 4000 rpm with the LT1 at ~450 ft-lbs. With the LT376-535 in occurs @5000 rpm at ~460 ft-lbs and stays pretty flat thru red line where the LT1 drops off above 4000. Typical of what you get with larger ports and a high lift more aggressive cam. If your tracking that is where you want the power, just shift more! One Press Release says the redline is extended to 6800 rpm, quoting: "The impressive 535 naturally aspirated horsepower is thanks to CNC-ported heads and the high-lift LT1 Hot Cam. Not only does it make significant horsepower numbers, this engine also loves to rev, making great power all the way to its 6,800 rpm redline."
No doubt GM set the cam timing for max power as that is what folks mostly compare! If you want more torque with a sacrifice in power just retard the cam timing!
They do say: "Gone is the variable valve timing and Active Fuel Management, sacrificed in the name of performance and piston-to-valve clearance." That is a factor in the LT1 for street driving and why the engine has a broad torque curve. For my driving would not want that eliminated! Not a big deal when racing as it is probably fully advanced at the rpms used.
The stingray should of had over 500hp to begin with, and the z06 over 700, once again gm fell short.
I've been sayin' that for 3 years now.
Originally Posted by Speedforhire
.........and fooled the masses at the same time. The turd C7Z can't even break the 200mph barrier while the "King of the Hill" with it's 635HP easily hits 205mph.
Glad I'm not the only one who gets it. The thing about progress is that the next generation should be better than the one it replaces, it's that whole "Improve from our past" thing.
really? the Z06 guys keep invading the Stingray/GS threads, if we wanted a Z06, we would have got one. lets keep the GS Vs. Z06 off this thread, there is a post for that
Agreed, all the Z06 owner drive-by posts to inform us how inferior we are are infantile. Maybe there isn't enough action in the Z06 section to keep them occupied.
Agreed, all the Z06 owner drive-by posts to inform us how inferior we are are infantile. Maybe there isn't enough action in the Z06 section to keep them occupied.
Proably "young folks" who must have to have max power and buy automatics, that can't understand why some of us prefer NA engines and manual trans!
Quite doing stop light drags years ago to prove I have a faster car! Only the local horses and cows watch my ProStreet Rod with its 8.2 Liter BB make the occasional 0 to 60 run on our empty rural roads! And they don't care that the car is fast!
I don't know about more power initially for the Stingray.
It is a very quick car for the street with excellent handling.
It's hard to top when compared to other Sportscars (not talking about Supercars).
Originally Posted by Foosh
Agreed, all the Z06 owner drive-by posts to inform us how inferior we are are infantile. Maybe there isn't enough action in the Z06 section to keep them occupied.
I agree...and I have a Z06.
It is ridiculous and out-of-bounds to attack the Z06's cousins the Stingray and Grand Sport.
Can't say I'm too impressed.
The 535hp is great, but only 470lbs.
OTOH, to answer your question as an engine for the GS, I think it would pretty darn perfect if the car is being tracked.
Originally Posted by 1SG_Ret
I'd personally prefer to see those numbers reversed.
Originally Posted by Maslo
I prefer the horsepower. If you desire more torque at the wheels, gear it down a little bit. When you have more horsepower, gearing down will give you more torque at the same speed. Win-win!
(facepalm)
How is it that an in over a decade of internet message boards, hp vs tq still isn't understood?
Last edited by village idiot; 11-01-2016 at 05:37 PM.
Some of you guys are tough! Decided to compare the power and torque curves-both from GM. I picked several points and estimated best I could from the graphs. Presented the results in a table.
Note peak torque occurs at 4000 rpm with the LT1 at ~450 ft-lbs. With the LT376-535 in occurs @5000 rpm at ~460 ft-lbs and stays pretty flat thru red line where the LT1 drops off above 4000. Typical of what you get with larger ports and a high lift more aggressive cam. If your tracking that is where you want the power, just shift more! One Press Release says the redline is extended to 6800 rpm, quoting: "The impressive 535 naturally aspirated horsepower is thanks to CNC-ported heads and the high-lift LT1 Hot Cam. Not only does it make significant horsepower numbers, this engine also loves to rev, making great power all the way to its 6,800 rpm redline."
No doubt GM set the cam timing for max power as that is what folks mostly compare! If you want more torque with a sacrifice in power just retard the cam timing!
They do say: "Gone is the variable valve timing and Active Fuel Management, sacrificed in the name of performance and piston-to-valve clearance." That is a factor in the LT1 for street driving and why the engine has a broad torque curve. For my driving would not want that eliminated! Not a big deal when racing as it is probably fully advanced at the rpms used.
Your spreadsheet is literally impossible. It's impossible to have the different tq at the same rpm and make same power.
Glad I'm not the only one who gets it. The thing about progress is that the next generation should be better than the one it replaces, it's that whole "Improve from our past" thing.
Originally Posted by Speedforhire
.........and fooled the masses at the same time. The turd C7Z can't even break the 200mph barrier while the "King of the Hill" with it's 635HP easily hits 205mph.
The ZR1 makes very little downforce at high speeds, the C7 makes a lot more (even the stage 1 cars). It has aero drag, so you get better handling and better stability at higher speeds, but lose some speed on the top end. Both are great cars, but the C7 is better in pretty much everything besides the Z06 being slower on the top end.
No doubt GM set the cam timing for max power as that is what folks mostly compare! If you want more torque with a sacrifice in power just retard the cam timing!
They do say: "Gone is the variable valve timing and Active Fuel Management, sacrificed in the name of performance and piston-to-valve clearance." That is a factor in the LT1 for street driving and why the engine has a broad torque curve. For my driving would not want that eliminated! Not a big deal when racing as it is probably fully advanced at the rpms used.
I think you have it backwards. You retard cam timing for more high end. You advance for more low end torque.
Am I the only one content with the LT1's current power output? 460 HP in a lightweight car like the Stingray is nothing to sneeze at...
No, I agree as well. In fact looking at what is accomplished with the more aggressive cam and ported heads the driveability for normal use would be worse! I like the low end torque the variable cam timing provides with the LT1.
Am I the only one content with the LT1's current power output? 460 HP in a lightweight car like the Stingray is nothing to sneeze at...
No you're not alone.
I've had a lot more HP in even lighter cars, and am smart and mature enough to have learned it's ridiculously unnecessary in a street car. Hell, 460HP in a 3300 lb. car on the street is pretty ridiculous as well.
As Jerry said, with the low-end torque and drivability of the LT1, it's just about the perfect, fun to live with, high-performance street engine. Moreover, I just really prefer normally aspirated engines.
With that cam I doubt that it would pass emissions certification or EPA fuel economy, to be used in a production car.
That's why it's after market for your 1966 Nova.
You hit it right on the head. Looking through the GM performance catalog, the heads/cam kit isn't legal for installation in California. This engine is literally and LT1 with the h/c kit, so it wouldn't pass emissions in California (and maybe some other states).
11-01-2016, 10:04 AM
I've been sayin' that for 3 years now.
Proably "young folks" who must have to have max power and buy automatics, that can't understand why some of us prefer NA engines and manual trans!
