Sweet Spot
Thread Starter
Pro
Joined: Apr 2007
Posts: 612
Likes: 1
From: Boston
Sweet Spot
Has anyone here supercharged their GS? I had a C6 and then a Z06. Both had their pros and cons. The ride was more comfortable and less twitchy in the C6 but the acceleration was insane in my Z06. So I started thinking..... maybe the best of both worlds would be a supercharged Grand Sport. That would give you creature comforts like selective ride, glass roof, great gas mileage etc but with more intense acceleration. Your thoughts please?
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
While I've never been a fan of forced induction on a stock, cast-piston engine if used responsibly supercharger's work well enough. Typically, most guys are just looking for a short, straight line blast on a public road anyway. A friend has a cammed GS with long tube headers, coil-over's, etc. and it runs very well on a road course. I still prefer naturally aspirated power. 
Thread Starter
Pro
Joined: Apr 2007
Posts: 612
Likes: 1
From: Boston
Wayne O, please elaborate more about this. Are you saying that an LS3 might not have enough internal strength to handle a supercharger?
Is the LS9 in the ZR1 a much stronger engine internally? Pardon my ignorance but I no nothing about superchargers and where they should and shouldn't be used.
Is the LS9 in the ZR1 a much stronger engine internally? Pardon my ignorance but I no nothing about superchargers and where they should and shouldn't be used.
The Consigliere
Joined: May 2006
Posts: 23,011
Likes: 6,046
From: 2023 Z06 & 2010 ZR1
Like Ed above,
I've got a 606hp Callaway Grand Sport. Great car. Strong running, comfortable driver, and a 100k mile warranty from Callaway that overlays GM's 100k mile drivetrain warranty.
Or you can go a less expensive route and either install the supercharger yourself or have a shop do it with off the shelf stuff. Tuning and set-up is key to a safe, reliable and durable package. I frankly didn't want to have to worry about any of that, and fortunately had the coin to just pop for the Callaway, which has a demonstrated record of outstanding reliability/durability.
So. . . OP, go get that SC GS and have some fun.
I've got a 606hp Callaway Grand Sport. Great car. Strong running, comfortable driver, and a 100k mile warranty from Callaway that overlays GM's 100k mile drivetrain warranty.
Or you can go a less expensive route and either install the supercharger yourself or have a shop do it with off the shelf stuff. Tuning and set-up is key to a safe, reliable and durable package. I frankly didn't want to have to worry about any of that, and fortunately had the coin to just pop for the Callaway, which has a demonstrated record of outstanding reliability/durability.
So. . . OP, go get that SC GS and have some fun.
Former Vendor
Joined: May 2001
Posts: 6,125
Likes: 739
From: Callaway Cars - Old Lyme, Connecticut
Has anyone here supercharged their GS? I had a C6 and then a Z06. Both had their pros and cons. The ride was more comfortable and less twitchy in the C6 but the acceleration was insane in my Z06. So I started thinking..... maybe the best of both worlds would be a supercharged Grand Sport. That would give you creature comforts like selective ride, glass roof, great gas mileage etc but with more intense acceleration. Your thoughts please?
Recently, our 2010 SC606 Grand Sport turned 109,000 miles in 2 years - flawlessly, I might add
more @ www.callawaycars.com
Race Director
Joined: Feb 2006
Posts: 11,734
Likes: 15
From: SC
Has anyone here supercharged their GS? I had a C6 and then a Z06. Both had their pros and cons. The ride was more comfortable and less twitchy in the C6 but the acceleration was insane in my Z06. So I started thinking..... maybe the best of both worlds would be a supercharged Grand Sport. That would give you creature comforts like selective ride, glass roof, great gas mileage etc but with more intense acceleration. Your thoughts please?
Buy a used Z06 and alter the suspension to your liking....buy the softer springs + shocks from the GS and bolt them right in.
The positives of this is that you'll get the acceleration you want, better reliability then a FI car (plenty of horror stories of SC's that went bad).
If you buy a Z06 with warranty, you'll be much more likely to keep a drivetrain warranty intact by doing suspension tweaks then a SC kit which by default voids your entire drivetrain warranty.
Just a couple things to consider. If you want a solid GS package, you should opt for the Callaway, but you certainly pay a hefty price for admission.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Former Vendor
Joined: May 2001
Posts: 6,125
Likes: 739
From: Callaway Cars - Old Lyme, Connecticut
Option 3.....
The positives of this is that you'll get the acceleration you want, better reliability then a FI car (plenty of horror stories of SC's that went bad).
If you buy a Z06 with warranty, you'll be much more likely to keep a drivetrain warranty intact by doing suspension tweaks then a SC kit which by default voids your entire drivetrain warranty.
Just a couple things to consider. If you want a solid GS package, you should opt for the Callaway, but you certainly pay a hefty price for admission.
The positives of this is that you'll get the acceleration you want, better reliability then a FI car (plenty of horror stories of SC's that went bad).
If you buy a Z06 with warranty, you'll be much more likely to keep a drivetrain warranty intact by doing suspension tweaks then a SC kit which by default voids your entire drivetrain warranty.
Just a couple things to consider. If you want a solid GS package, you should opt for the Callaway, but you certainly pay a hefty price for admission.
You DO keep your powertrain warranty from Chevrolet w/ Callaway
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
you might not get the power you want from a stock LS7. A LS3 with an entry level Centri kit makes a good amount of HP/TQ over the Z06 and will pull away pretty hard from one.
Reading the Z06 section you see quite a few stock LS7 imploding for different reasons. Its not a bulletproof plant.
Personally, I dont think a carefully done, moderately boosted LS2/3 is any more likely to grenade than a LS7. There are thousands of us who are F/I for years w/o issues at all. Like any hi-po install, the more you turn up the wick the greater the odds of something going wrong. If left at reasonable boost pressures its damn near as safe as the day you drove it off the showroom floor.
Reading the Z06 section you see quite a few stock LS7 imploding for different reasons. Its not a bulletproof plant.
Personally, I dont think a carefully done, moderately boosted LS2/3 is any more likely to grenade than a LS7. There are thousands of us who are F/I for years w/o issues at all. Like any hi-po install, the more you turn up the wick the greater the odds of something going wrong. If left at reasonable boost pressures its damn near as safe as the day you drove it off the showroom floor.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
A friend has a '10 GS coupe with manual transmission. He had a TVS2300 installed with a cam and longtubes. He's getting around 615 at the rear wheels. He has had no problems but he dosen't beat on the car. More of a show car then a race car.
I think the only problem he has had was in a low speed cruise in traffic in 95 degree weather, the engine went to 230* and the A/C shut off. I think most people with blowers recommend a larger aftermarket radiator.
I think the only problem he has had was in a low speed cruise in traffic in 95 degree weather, the engine went to 230* and the A/C shut off. I think most people with blowers recommend a larger aftermarket radiator.
