C8 Callaway Owners Thread
Burning Brakes
Joined: Jul 2002
Posts: 1,027
Likes: 245
From: Boise ID
Gold Master GenFour intallation
The Supercharged C8 is driving!The Supercharged C8 is driving! The report from the development team is super enthusiastic. The power feels very good (final validation measurement pending). The sounds coming from the new supercharger design are fantastic. And just what we hoped for. The responsiveness of the charge air delivery to the engine is very precise and follows the throttle input, perfectly, smoothly, and at the very quick demand of the throttle. A really exciting driving experience, especially the SC noise. On downshift, from inside and outside the car, the DD exhaust has come into its own. Nothing else sounds and acts like the Double D. The sounds here are such deep indicators of what we want from the C8. The driving experience from the C8 in general is so good, so pleasing, so mature and so nearly perfect that we have to bring two other elements to our version of the car. The exhaust signature and the sound of power from the engine compartment. Both of those elements are there in the most pleasing and exciting sound statements. With the engine so close to the driver there is a lot to be heard from the engine on its mechanical side, and the compressor side of the charge delivery both at WOT (Wide Open Throttle) and on the downshifting steps of the wonderful rpm matching of the gearbox. We love it!
Today we are announcing a new design supercharger. Here is a features/benefits discussion
What’s new about the Callaway C8 GenFour Supercharger?
The Callaway C8 Corvette is equipped with a brand-new supercharger design, unique from previous Callaway superchargers equipped on Callaway C7 Corvettes, Camaros, and trucks. Each of these vehicles utilizes a Callaway GenThree supercharger with TrippleCooled Intercooler System. This design was revolutionary and lead the industry in performance and efficiency. The same could be said for the C7 Corvette when it came out, and then the world was introduced to the C8. Building on that momentum, Callaway is proud to introduce the new GenFour, Twin-Screw, Supercharger for C8 Corvette.
Secrets of the Twin Screw. Note 3 lobe male rotor and 4 lobe female
The GenFour Supercharger is a clean sheet design that optimizes efficiency in every aspect. The biggest change from the GenThree is the 3.0L displacement, twin screw rotor set. The GenThree Callaway Corvette C7 Supercharger utilized 2.3L displacement, Roots type supercharger rotors. This package was a perfect match for the LT1 & LT4 engines in the C7 Corvette, to produce respectable power gains. To match the power potential and technology of the new LT2 engine, something new was required-the larger displacement and twin-screw rotor design was developed. Here is how the two designs differ. Both are positive displacement superchargers, meaning for each revolution of the rotors, a fixed amount of air is delivered to the engine. For the GenThree Corvette application, that fixed amount is 2.3L (at 100% volumetric efficiency (VE)). For the GenFour, that amount is 3.0L (at 100% VE). That change alone delivers 30% more air to the engine per revolution, but the GenFour is not simply a bigger version of the GenThree. The GenThree rotors are a roots type, meaning air is delivered to the engine at atmospheric pressure at discharge. Boost is created by feeding the engine more air than it can digest naturally, and the backup creates pressure in the manifold, which is read as boost. With the GenFour screw type rotors, air is compressed inside the supercharger and delivered to the engine at an elevated pressure. This method of compression is significantly more efficient, and therefore produces less temperature rise in the air, and requires less power to turn the supercharger. In summary, the GenFour supercharger delivers more air, at higher pressure, at a lower temp, for less input power. As with the GenThree, the air exiting the GenFour supercharger is routed through Callaway’s exclusive TrippleCooled Intercooler system, resulting in the lowest possible intake temperatures, but this system has been improved as well. Most significantly, the GenFour is now equipped with an intercooled bypass configuration. This means that the air entering the engine when not on boost, is similarly cooled by the intercooler. Intake air is at a lower temperature during normal driving conditions and thus peaks at lower temperatures when compressed. The result is higher horsepower potential, with less stress on the engine. All these improvements have been expertly engineered to provide you with the most powerful, efficient, and reliable automobiles possible. Nothing in our approach to our vehicles is done without purpose and passion. 
Engineering Manager Scott Rawling, Chief Mechanic Pete DeFilippo, and Mechanic Charlie LeBlanc oversee a startup of the latest development configuration.Next Newsletter Contents: Pricing & Power
Burning Brakes
Joined: Jul 2002
Posts: 1,027
Likes: 245
From: Boise ID
You don't even know! I put the order in on this car back in 2018 and when it was delivered to Callaway in 2020, I had no idea that I would still be watching the developement in 2023. I am so excited that we are getting close to completion of the Callaway C8. The team at Callaway has been great throughout the entire process!
Team Owner
Joined: May 2001
Posts: 36,106
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
You don't even know! I put the order in on this car back in 2018 and when it was delivered to Callaway in 2020, I had no idea that I would still be watching the developement in 2023. I am so excited that we are getting close to completion of the Callaway C8. The team at Callaway has been great throughout the entire process!
I remember when you placed your order on a car not yet to be announced. That's a huge leap of faith, but I am sure you won't be disappointed. I've owned 5 Callaways so far. They have all been wonderful vehicles.
Burning Brakes
Joined: Aug 2004
Posts: 847
Likes: 729
From: Houston, TX
It will be interesting to see how quickly they can ramp up their installation capabilities.
Le Mans Master
Joined: Apr 2001
Posts: 5,474
Likes: 717
From: Black Forest CO
The updates have been coming around the second Friday of the month.
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Instructor
Joined: Feb 2017
Posts: 141
Likes: 40
This will be my second Callaway if all goes well. The last one was flawless and beautiful and I enjoyed all the benefits of being 1 of the few in my neck of the woods to own one .
No pricing , HP numbers or installation dates yet but it's getting closer . I am 1st in line to have the Callaway Supercharged C8 package installed when they are ready for production . This email was sent to me on October 6th . I sent in my order/deposit September 1 2022. The email stated " your production reservation number is 1CAN ". As I didn't know what that meant , they emailed me back saying I was 1st on the list . I am looking forward to more news .
No pricing , HP numbers or installation dates yet but it's getting closer . I am 1st in line to have the Callaway Supercharged C8 package installed when they are ready for production . This email was sent to me on October 6th . I sent in my order/deposit September 1 2022. The email stated " your production reservation number is 1CAN ". As I didn't know what that meant , they emailed me back saying I was 1st on the list . I am looking forward to more news .
Instructor
Joined: Jul 2022
Posts: 229
Likes: 84
From: FL
I have to call or text to see what place I am. My deposit receipt is from 8/26 so I’m surprised that how ever th email read (that I seemed to have deleted) I thought I was 10th in line. Maybe it is as a stated early on in the thread and I’m 10th overall because of it being a HTC.
Instructor
Joined: Feb 2017
Posts: 141
Likes: 40
maybe you are right , I would think a phone conversation would be more accurate . I just don’t understand why they would email me back stating I was first knowing I have a HTC . We will find out soon enough
Le Mans Master
Joined: Apr 2001
Posts: 5,474
Likes: 717
From: Black Forest CO
Has anyone heard from Callaway as to when they will begin accepting cars? Last I heard was Q1 which is a broad timeframe. It is looking like my car will be getting built sooner than late summer and I will need to tell MacMulkin in the next month or two where to ship the car. I texted Callaway and asked but did not get a response.
Team Owner
Joined: May 2001
Posts: 36,106
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
Has anyone heard from Callaway as to when they will begin accepting cars? Last I heard was Q1 which is a broad timeframe. It is looking like my car will be getting built sooner than late summer and I will need to tell MacMulkin in the next month or two where to ship the car. I texted Callaway and asked but did not get a response.
The other week, I saw @Callaway Cars was on the forum again. Maybe they will see this and respond to you
3rd Gear
Joined: Aug 2013
Posts: 3
Likes: 0
The Callaway C8 Corvette is equipped with a brand-new supercharger design, unique from previous Callaway superchargers equipped on Callaway C7 Corvettes, Camaros, and trucks. Each of these vehicles utilizes a Callaway GenThree supercharger with TrippleCooled Intercooler System. This design was revolutionary and lead the industry in performance and efficiency. The same could be said for the C7 Corvette when it came out, and then the world was introduced to the C8. Building on that momentum, Callaway is proud to introduce the new GenFour, Twin-Screw, Supercharger for C8 Corvette.
Secrets of the Twin Screw. Note 3 lobe male rotor and 4 lobe female
The GenFour Supercharger is a clean sheet design that optimizes efficiency in every aspect. The biggest change from the GenThree is the 3.0L displacement, twin screw rotor set. The GenThree Callaway Corvette C7 Supercharger utilized 2.3L displacement, Roots type supercharger rotors. This package was a perfect match for the LT1 & LT4 engines in the C7 Corvette, to produce respectable power gains. To match the power potential and technology of the new LT2 engine, something new was required-the larger displacement and twin-screw rotor design was developed. Here is how the two designs differ. Both are positive displacement superchargers, meaning for each revolution of the rotors, a fixed amount of air is delivered to the engine. For the GenThree Corvette application, that fixed amount is 2.3L (at 100% volumetric efficiency (VE)). For the GenFour, that amount is 3.0L (at 100% VE). That change alone delivers 30% more air to the engine per revolution, but the GenFour is not simply a bigger version of the GenThree. The GenThree rotors are a roots type, meaning air is delivered to the engine at atmospheric pressure at discharge. Boost is created by feeding the engine more air than it can digest naturally, and the backup creates pressure in the manifold, which is read as boost. With the GenFour screw type rotors, air is compressed inside the supercharger and delivered to the engine at an elevated pressure. This method of compression is significantly more efficient, and therefore produces less temperature rise in the air, and requires less power to turn the supercharger. In summary, the GenFour supercharger delivers more air, at higher pressure, at a lower temp, for less input power. As with the GenThree, the air exiting the GenFour supercharger is routed through Callaway’s exclusive TrippleCooled Intercooler system, resulting in the lowest possible intake temperatures, but this system has been improved as well. Most significantly, the GenFour is now equipped with an intercooled bypass configuration. This means that the air entering the engine when not on boost, is similarly cooled by the intercooler. Intake air is at a lower temperature during normal driving conditions and thus peaks at lower temperatures when compressed. The result is higher horsepower potential, with less stress on the engine. All these improvements have been expertly engineered to provide you with the most powerful, efficient, and reliable automobiles possible. Nothing in our approach to our vehicles is done without purpose and passion.
Secrets of the Twin Screw. Note 3 lobe male rotor and 4 lobe female
The GenFour Supercharger is a clean sheet design that optimizes efficiency in every aspect. The biggest change from the GenThree is the 3.0L displacement, twin screw rotor set. The GenThree Callaway Corvette C7 Supercharger utilized 2.3L displacement, Roots type supercharger rotors. This package was a perfect match for the LT1 & LT4 engines in the C7 Corvette, to produce respectable power gains. To match the power potential and technology of the new LT2 engine, something new was required-the larger displacement and twin-screw rotor design was developed. Here is how the two designs differ. Both are positive displacement superchargers, meaning for each revolution of the rotors, a fixed amount of air is delivered to the engine. For the GenThree Corvette application, that fixed amount is 2.3L (at 100% volumetric efficiency (VE)). For the GenFour, that amount is 3.0L (at 100% VE). That change alone delivers 30% more air to the engine per revolution, but the GenFour is not simply a bigger version of the GenThree. The GenThree rotors are a roots type, meaning air is delivered to the engine at atmospheric pressure at discharge. Boost is created by feeding the engine more air than it can digest naturally, and the backup creates pressure in the manifold, which is read as boost. With the GenFour screw type rotors, air is compressed inside the supercharger and delivered to the engine at an elevated pressure. This method of compression is significantly more efficient, and therefore produces less temperature rise in the air, and requires less power to turn the supercharger. In summary, the GenFour supercharger delivers more air, at higher pressure, at a lower temp, for less input power. As with the GenThree, the air exiting the GenFour supercharger is routed through Callaway’s exclusive TrippleCooled Intercooler system, resulting in the lowest possible intake temperatures, but this system has been improved as well. Most significantly, the GenFour is now equipped with an intercooled bypass configuration. This means that the air entering the engine when not on boost, is similarly cooled by the intercooler. Intake air is at a lower temperature during normal driving conditions and thus peaks at lower temperatures when compressed. The result is higher horsepower potential, with less stress on the engine. All these improvements have been expertly engineered to provide you with the most powerful, efficient, and reliable automobiles possible. Nothing in our approach to our vehicles is done without purpose and passion.
Here is what it looks inside (from dodge hellcat), the LT2 must have rear drive.
Last edited by Jiaim; Jan 22, 2023 at 02:25 PM.
Burning Brakes
Joined: Jul 2002
Posts: 1,027
Likes: 245
From: Boise ID
I was noticing that the supercharger was the Whipple unit, which was a bit of a surprise. But, at least, it will be similar to what I have in my truck. Too bad Callaway won’t tune my truck for me…