Supercharged and Turbocharged LT7 in ZR1
04-25-2024, 05:41 AM
#21
04-25-2024, 06:41 AM
#22
But i'm sure they'll complain about something. Oh the new air ducts look funny. The price is 3,995 too much. I don't like the sound. I'm going to wait for the next variant!!!
04-25-2024, 06:44 AM
#23
Melting Slicks
I do believe creating a plenum tube like what's shown on the CAD file image can only be done with 3D printing. Think about accuracy of a progressively reduced conical shaped tube that is the bending and deforming its shape into a progressive ellipse shape then returning to a perfectly round shape on either end. Then polishing the internal surface to a smooth mirror like finish using magnetic polishing grit. This is getting into Formula 1 type technologies !
They can also make it out of composites like carbon fiber with mandrels that can be either melted or water dissolved, or by using split molds.
04-25-2024, 08:13 AM
#24
Safety Car
Member Since: Sep 2004
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It's going to have twin turbos, a supercharger, NOS, and rocket propulsion.
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ChevyChad (04-25-2024)
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JockItch (04-25-2024)
04-25-2024, 11:23 AM
#26
I suspect ZR1 will be a TT RWD setup and they'll sprinkle in electrification for the Zora. If the ZR1 had any of the eRay bits we'd see the cooling for the eDrive/battery up front like eRay.
04-25-2024, 12:25 PM
#28
Le Mans Master
I would really like to see a lightweight version, in the manner of the C6Z06. Take some weight out of the beast. Maybe a GS model.
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robob (04-25-2024)
04-25-2024, 12:53 PM
#29
Le Mans Master
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A turbocharger, is an exhaust driven centrifugal supercharger. Thus it is a supercharged engine. There are also belt driven centrifugal superchargers and belt and gear driven positive displacement superchargers.
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JMB (04-25-2024)
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kevinprimetime (05-03-2024)
04-25-2024, 04:33 PM
#32
Pro
SC and Turbo is interchangeable on GM parts database. Blackwing shows supercharger, we all know it is turbocharged.
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JMB (04-25-2024)
04-25-2024, 06:27 PM
#33
Drifting
Thread Starter
04-25-2024, 07:42 PM
#34
4v blackwing is turbo'd
5v blackwing is supercharged
5v blackwing is supercharged
04-25-2024, 10:54 PM
#36
Le Mans Master
It is obvious a lot of responders here did not watch the video.
While i think its a huge stretch, the guy does make some good points.
And for those of you who did not watch, one little tidbit of info was that GM filed a patent for a dual charger engine with both a turbocharger and an electric supercharger with a CVT transmission. Definitely a unique and novel idea.
I'm still skeptical of this theory because we already have CAD leaks of a twin turbo DOHC C8 setup.
While i think its a huge stretch, the guy does make some good points.
And for those of you who did not watch, one little tidbit of info was that GM filed a patent for a dual charger engine with both a turbocharger and an electric supercharger with a CVT transmission. Definitely a unique and novel idea.
I'm still skeptical of this theory because we already have CAD leaks of a twin turbo DOHC C8 setup.
We have been informed that GM President Mark Reuss commented during a Dealer preview of the ZR1 that the LT7 engine was turbocharged. Looking at the Code Name Zerv leaked CAD files showing the LT7 engine we can clearly see that the Turbo's appear to be dual stage turbos down low. We can also see what appears to be 3D printed air plenum tubes that are approximately 4-5 inches in diameter at the blue air box and 2-3 inches in diameter where they connect to the dual stage turbos. Looking at that plenum tube that starts at a larger cross section of air volume being reduced progressively through the entire length at a constant reduced rate until it connects to the turbo. That of course is compressing cold air during that length which is essentially a supercharging (Cold air) process. I'm not sure if those two curved tubes wrapping around each side of that LT7 would be a precision casting or would it be 3D printed. I assume the interior of those tubes would have to be ultra smooth for low air friction. All fun conjecture on my part where we will find out soon enough !
04-25-2024, 11:03 PM
#37
Drifting
Thread Starter
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ChevyChad (04-26-2024)
04-25-2024, 11:31 PM
#38
Pro
I think SC stands for split compression. It’ll have split compression turbochargers. More efficient and better gas mileage
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ChevyChad (04-26-2024)
04-26-2024, 12:15 AM
#39
Drifting
Thread Starter
The MR2 implemented that in the 90s, way ahead of its time. It was called Twin-Scroll.
04-26-2024, 06:10 AM
#40
Pro
Now there's a better argument than a pic of a vague dropdown menu or calling people idiots. Is there any GM documentation specifically referring to a "split compression" or "SC" turbo? So far the terminology I'm finding is dual volute and Variable Compression (VC). Trying to find any patent. I recall dual volute being used in the Colorado's new turbo 2.7L I4.
The MR2 implemented that in the 90s, way ahead of its time. It was called Twin-Scroll.
The MR2 implemented that in the 90s, way ahead of its time. It was called Twin-Scroll.