Notices
C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

To supercharge or not

 
Old 01-17-2019, 11:18 PM
  #1  
Corvette farmer
Junior Member
Thread Starter
 
Member Since: Nov 2018
Posts: 15
Thanked 3 Times in 3 Posts
Default To supercharge or not

Rather than taking a bath trading a 2019 grand sport for a 19 z06 would like opinions on adding a supercharger from those that have done so. Any reliability issues or overheating problems ? I assume you would lose your factory warranty. Also effect on fuel economy, and no I didnít buy it for that reason but itís kind of nice to get 30 mpg when just cruising. Also wonder what it would do to trade in value? Thx
Corvette farmer is offline  
Old 01-18-2019, 08:23 AM
  #2  
John Micheal Henry
CF Senior Member
 
John Micheal Henry's Avatar
 
Member Since: Jan 2005
Location: Marshall Texas
Posts: 1,551
Thanked 261 Times in 187 Posts
Default

IMHO.. 1. The more power you make,the more fuel you'll burn.
2. You will lose the factory power-train warranty.
3. You will not recover any money invested in mods.
John Micheal Henry is offline  
The Following User Says Thank You to John Micheal Henry For This Useful Post:
Avanti (01-18-2019)
Old 01-18-2019, 09:14 AM
  #3  
V Vette
CF Senior Member
 
V Vette's Avatar
 
Member Since: Feb 2005
Location: Cape Coral, Fl
Posts: 4,540
Thanked 118 Times in 87 Posts
Default

Originally Posted by John Micheal Henry View Post
IMHO.. 1. The more power you make,the more fuel you'll burn.
2. You will lose the factory power-train warranty.
3. You will not recover any money invested in mods.
but I still don't understand the MPG thing.
V Vette is offline  
Old 01-18-2019, 09:23 AM
  #4  
Zjoe6
CF Senior Member
 
Zjoe6's Avatar
 
Member Since: Aug 2015
Posts: 2,059
Thanked 479 Times in 365 Posts
Default

I think youíll take a bath either way. Except with the z06 itíll be easier to sell and get more of your money back. Thatís what Iíve seen here over the years in the for sale ads. Also since the super charger doesnít kick in until a certain rpm your fuel economy should still be good. Not sure what you lose just spinning the supercharger while cruising down the highway. Probably not going to get 30mpg like the LT1 but close.

Last edited by Zjoe6; 01-18-2019 at 09:35 AM.
Zjoe6 is offline  
Old 01-18-2019, 10:18 AM
  #5  
ImpliedConsent
CF Senior Member
 
ImpliedConsent's Avatar
 
Member Since: Oct 2017
Location: Colorado
Posts: 717
Thanked 210 Times in 126 Posts
Default

Originally Posted by John Micheal Henry View Post
IMHO.. 1. The more power you make,the more fuel you'll burn.
2. You will lose the factory power-train warranty.
3. You will not recover any money invested in mods.
  1. Yep, that's why I bought a Corvette... fuel savings.
  2. That's debatable.
  3. Does anyone ever recover the money for mods?
ImpliedConsent is offline  
Old 01-18-2019, 10:30 AM
  #6  
449er
CF Senior Member
 
449er's Avatar
 
Member Since: Apr 2016
Location: Pittsburgh
Posts: 2,141
Thanked 262 Times in 224 Posts
Default

Your fuel economy won't suffer much until you engage in some spirited driving. You won't get much money back when you sell after doing the supercharger & yes, you will lose that warranty
449er is offline  
Old 01-18-2019, 11:23 AM
  #7  
Slick6
CF Member
 
Member Since: Jan 2014
Posts: 73
Thanks: 0
Thanked 8 Times in 4 Posts
Default

Are you thinking roots type or a centrifugal blower? I put a Paxton centrifugal on my 2008 Mustang along with several other mods, and the fuel mileage didn't take a drastic hit. The centrifugal route is better if you don't want to be under boost all of the time.
Slick6 is offline  
Old 01-18-2019, 12:15 PM
  #8  
phil hunter
CF Senior Member
 
phil hunter's Avatar
 
Member Since: Jan 2006
Location: Temecula CA
Posts: 507
Thanks: 0
Thanked 25 Times in 21 Posts
Default

I ran an A&A Vortex centri supercharger on my C5 Vette for several years. It produced 502 hp at the wheels at 10 lbs of boost. Not bad for an otherwise bone stock LS1. As long as I kept my foot out of it, the gas mileage was about the same as without the supercharger. Unlike the rootes type unit that the factory uses, my centri did not provide any significant boost until about 2500 rpm. You can probably have a centri installed for $7000 to $8000 dollars along with a tune. Less if you do the work. I never had any overheating issues with it, but it was a C5 not a C7. As far as trade in value, it will probably lower it, but you can always remove the centri, put the car back to stock, and sell the supercharger separately. I sold my C5 with the centri on it for a premium, but found a buyer who was looking for a supercharged car. Not sure where you are located, but smog might be an issue. A&A has a 50 state legal setup for the C7. Not sure about the other supercharger manufacturers.

Here is a link:
https://www.aacorvette.com/


Phil
phil hunter is offline  
Old 01-18-2019, 12:46 PM
  #9  
curve65
CF Senior Member
 
Member Since: Nov 2016
Location: Silver Spring MD
Posts: 388
Thanked 119 Times in 114 Posts
Default

It'll sure change the maintenance tail unlike the Z that already has a good warranty for being supercharged. Plus, it will be harder to sell or trade when the time comes, or at least in my experience did. I guess it depends on if you are planning on keeping her and don't mind a tweak or two every once in a while, imho.
curve65 is offline  
Old 01-18-2019, 01:09 PM
  #10  
BrunoTheMellow
CF Senior Member
 
BrunoTheMellow's Avatar
 
Member Since: Jan 2015
Posts: 1,896
Thanked 296 Times in 233 Posts
Default

Originally Posted by John Micheal Henry View Post
IMHO.. 1. The more power you make,the more fuel you'll burn.
2. You will lose the factory power-train warranty.
3. You will not recover any money invested in mods.
#3 is absolutely wrong. I can pull off my mods, sell them and get 1/2 my initial cost I bet.

OP unless you're tracking extensively you will not overheat. And centrifugal kits run cooler than z06s so if you have all the cooling already your car would be better suited Problems? Change plugs every 2 years, change supercharger oil every oil change if centrifugal and you're set. I've put almost 30k miles on mine and some 30 track days and some 30 1/2 mile runs.

If you don't plan on going past stock Z06 power this is the way to go. If you plan on going over, then the forged pistons on the Z06 (only major difference really) would allow that.

Cruising I lost like 1-2 mpg. Putting Z06 stage 3 front and 2 rear aero on my z51 made a larger mpg difference.

Last edited by BrunoTheMellow; 01-18-2019 at 02:02 PM.
BrunoTheMellow is offline  
The Following User Says Thank You to BrunoTheMellow For This Useful Post:
devnull (02-14-2019)
Old 01-18-2019, 01:15 PM
  #11  
roadbike56
CF Senior Member
Support Corvetteforum!
 
roadbike56's Avatar
 
Member Since: Oct 2011
Location: Holly Springs NC
Posts: 6,106
Thanked 677 Times in 518 Posts
St. Jude Donor '16-'17
Default

Originally Posted by ImpliedConsent View Post
  1. Yep, that's why I bought a Corvette... fuel savings.
  2. That's debatable.
  3. Does anyone ever recover the money for mods?
#2, there's nothing debatable about losing the powertrain warranty. Mod the engine and it's gone. Forget the "I'll just take it off" response. The minute you do a tune, the computer records the change and GM picks this up when they download the stored information. There have been threads here of individuals who bought used C7s thinking the warranty was still in effect only to have GM inform them the powertrain warranty was void when the previous owner applied a tune.
roadbike56 is online now  
Old 01-18-2019, 03:21 PM
  #12  
Corvette farmer
Junior Member
Thread Starter
 
Member Since: Nov 2018
Posts: 15
Thanked 3 Times in 3 Posts
Default

Sounds like I just need to keep it stock
Corvette farmer is offline  
Old 01-18-2019, 03:29 PM
  #13  
7LitreC5
CF Senior Member
Support Corvetteforum!
 
7LitreC5's Avatar
 
Member Since: Apr 2001
Location: Black Forest CO
Posts: 4,405
Thanked 90 Times in 75 Posts
Default

I have an Edelbrock E-Force on my 15 Stingray. The gas mileage is unaffected. I get the same now in normal driving as before. I have had no overheating or other problems since installation.
7LitreC5 is offline  
Old 01-18-2019, 03:50 PM
  #14  
sTz
CF Senior Member
 
sTz's Avatar
 
Member Since: Dec 2014
Posts: 4,502
Thanked 1,229 Times in 973 Posts
Default

Get a Z06 and call it a day.
sTz is offline  
Old 01-18-2019, 04:55 PM
  #15  
BrunoTheMellow
CF Senior Member
 
BrunoTheMellow's Avatar
 
Member Since: Jan 2015
Posts: 1,896
Thanked 296 Times in 233 Posts
Default

Originally Posted by Corvette farmer View Post
Sounds like I just need to keep it stock
if you're scared of having something catastrophic happen? Sure. 999/1000 corvettes out there don't have an engine warranty problem. If you don't have a problem by 10k miles, supercharge it.

​​​​​​
BrunoTheMellow is offline  
The Following User Says Thank You to BrunoTheMellow For This Useful Post:
krwunlv (02-13-2019)
Old 01-18-2019, 05:02 PM
  #16  
dvilin
CF Senior Member
 
dvilin's Avatar
 
Member Since: Nov 2007
Location: Rochester New York
Posts: 38,862
Thanked 2,972 Times in 2,125 Posts
Default

Trade up to the Z06 and all the reasons for not adding a supercharger to your GS go away.
dvilin is offline  
The Following User Says Thank You to dvilin For This Useful Post:
Avanti (01-18-2019)
Old 01-18-2019, 05:06 PM
  #17  
Avanti
CF Senior Member
 
Avanti's Avatar
 
Member Since: Mar 2001
Location: Bonneville Salt Flats, 223mph Aug. '04
Posts: 5,707
Thanked 568 Times in 410 Posts
Default

I've spent decades with supercharged and turboed cars, aftermarket and factory. Know full well there are good reasons GM, Chrysler, and others all make serious internal modifications to "blown" engines. I would never simply add a supercharger to a factory normally aspirated engine without prepping it properly. Even then, there are no certainties unless you do all your own work, or know really well those who do.

I know this is not the after-market's line on their products. But, unless you wish to drive like a ninny (then why do any power-adder, anyway) you will be at risk, imho. Obviously, a lot of people buy and install such on otherwise stock engines... not my choice, thank you... since you asked...
Avanti is offline  
Old 01-18-2019, 05:37 PM
  #18  
BrunoTheMellow
CF Senior Member
 
BrunoTheMellow's Avatar
 
Member Since: Jan 2015
Posts: 1,896
Thanked 296 Times in 233 Posts
Default

Originally Posted by Avanti View Post
I've spent decades with supercharged and turboed cars, aftermarket and factory. Know full well there are good reasons GM, Chrysler, and others all make serious internal modifications to "blown" engines. I would never simply add a supercharger to a factory normally aspirated engine without prepping it properly. Even then, there are no certainties unless you do all your own work, or know really well those who do.

I know this is not the after-market's line on their products. But, unless you wish to drive like a ninny (then why do any power-adder, anyway) you will be at risk, imho. Obviously, a lot of people buy and install such on otherwise stock engines... not my choice, thank you... since you asked...
My 30k miles , 30+ track days, 30+ half mile runs procharged only z51 and many others say you're fine.
BrunoTheMellow is offline  
The Following User Says Thank You to BrunoTheMellow For This Useful Post:
jonparks (02-16-2019)
Old 01-18-2019, 05:45 PM
  #19  
Sids04
CF Senior Member
 
Sids04's Avatar
 
Member Since: Dec 2009
Location: Yardley Pa
Posts: 483
Thanked 28 Times in 26 Posts
Default

Trade it in on the Z. It will be cheaper in the long run.
Sids04 is offline  
Old 01-18-2019, 05:47 PM
  #20  
GTRSOLO
CF Senior Member
 
GTRSOLO's Avatar
 
Member Since: Jul 2017
Posts: 485
Thanked 73 Times in 48 Posts
Default

Originally Posted by BrunoTheMellow View Post
My 30k miles , 30+ track days, 30+ half mile runs procharged only z51 and many others say you're fine.
I'm interested in Supercharging my GS C7 M7 as well. Do you have a link to any of your mods/build - pics or data?
I was thinking of a centri style SC and Alky/meth injection. Not looking for crazy boost, so maybe Alky/Meth isn't needed?
600 - 650 at the crank is safe on stock internals?
Thanks.
GTRSOLO is offline  

Thread Tools
Search this Thread
Quick Reply: To supercharge or not


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: