Building a sleeper
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 829
Likes: 3
From: Maryland
Building a sleeper
I have a 2007 Base 3LT.
Only performance mod is a Halltech CIA.
From doing a search, I know there used to be a vendor (who is now defunct) that used to make some "sleeper" cam called the cheatr.
Since they are now gone, what other options are out there to get NA power on my car but not giving it a choppy sound?
Also, is there an exhaust package that can provide the same results (as in power but without large amounts of noise)?
Thanks in advance for any insight you may provide.
Only performance mod is a Halltech CIA.
From doing a search, I know there used to be a vendor (who is now defunct) that used to make some "sleeper" cam called the cheatr.
Since they are now gone, what other options are out there to get NA power on my car but not giving it a choppy sound?
Also, is there an exhaust package that can provide the same results (as in power but without large amounts of noise)?
Thanks in advance for any insight you may provide.
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
I have a 2007 Base 3LT.
Only performance mod is a Halltech CIA.
From doing a search, I know there used to be a vendor (who is now defunct) that used to make some "sleeper" cam called the cheatr.
Since they are now gone, what other options are out there to get NA power on my car but not giving it a choppy sound?
Also, is there an exhaust package that can provide the same results (as in power but without large amounts of noise)?
Thanks in advance for any insight you may provide.
Only performance mod is a Halltech CIA.
From doing a search, I know there used to be a vendor (who is now defunct) that used to make some "sleeper" cam called the cheatr.
Since they are now gone, what other options are out there to get NA power on my car but not giving it a choppy sound?
Also, is there an exhaust package that can provide the same results (as in power but without large amounts of noise)?
Thanks in advance for any insight you may provide.
Safety Car
Joined: Jan 2013
Posts: 4,138
Likes: 171
From: Missouri
St. Jude Donor '13-'14
A "sleeper" would be a car that no one suspects runs 10's, 9's, whatever. Could be a minivan, a Civic, an 11 second Prius. If you want to go fast without the sound? Nitrous or an eForce supercharger. The former makes no sound, the latter makes very little. Any cam swap will change the sound of your exhaust, and if it doesn't, at least in my opinion, definitely isn't worth it for the smallish gains compares to other cams.
Pro
Joined: Mar 2011
Posts: 737
Likes: 8
From: Chicago Area IL
St. Jude Donor '12-'13
Sleepers are the best! One wouldn't think to call a corvette a sleeper but frankly, I'm picked on all the time in the big city. It's about looks more than anything I think. I was in my 2008 Z51 for about 15 minutes on Monday and a guy pulled up in his new Mercedes S65 V12 AMG. Talking smack and arrogant as can be. At the next light his comment was "holy $hit that isn't stock is it". his 631hp didn't even come close. Blower whining, cam jumping....not everyone knows what to listen for I guess.
Instructor
Joined: Jul 2008
Posts: 126
Likes: 0
From: Gilbert AZ
I think a vette can be a sleeper. You make it look and sound as stock as possible, people will think its a 12 sec car. So if you can run 11's or even 10's, it would be a sleeper. I am looking to stay as "sleeper" as possible, but I did headers which are tough to hide.
I am looking at doing a sanded and smoothed FAST intake, and then a sleeper cam to try and keep the "average guy" from knowing what the car is capable of. I would get in contact with PatG, to have him spec you something. Im sure he can cut something that will sound stock with a 800ish idle but still give 30+ hp.
I am looking at doing a sanded and smoothed FAST intake, and then a sleeper cam to try and keep the "average guy" from knowing what the car is capable of. I would get in contact with PatG, to have him spec you something. Im sure he can cut something that will sound stock with a 800ish idle but still give 30+ hp.
Thread Starter
Burning Brakes
Joined: Apr 2009
Posts: 829
Likes: 3
From: Maryland
i think a vette can be a sleeper. You make it look and sound as stock as possible, people will think its a 12 sec car. So if you can run 11's or even 10's, it would be a sleeper. I am looking to stay as "sleeper" as possible, but i did headers which are tough to hide.
I am looking at doing a sanded and smoothed fast intake, and then a sleeper cam to try and keep the "average guy" from knowing what the car is capable of. I would get in contact with patg, to have him spec you something. Im sure he can cut something that will sound stock with a 800ish idle but still give 30+ hp.
I am looking at doing a sanded and smoothed fast intake, and then a sleeper cam to try and keep the "average guy" from knowing what the car is capable of. I would get in contact with patg, to have him spec you something. Im sure he can cut something that will sound stock with a 800ish idle but still give 30+ hp.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Race Director
Joined: Apr 2007
Posts: 14,062
Likes: 602
From: Henderson Nv-Rohnert Park/Sonoma C o. ca/born in NY Rockaway Beach.
you could also do headers but with z06 mufflers with mild to wild switch....
a friend had his that way and sounded stock when closed
a friend had his that way and sounded stock when closed
Pro
Joined: Jan 2003
Posts: 730
Likes: 45
From: kansas city mo.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I don't wash my CRM real often and then a bit of brake dust dulls the classic 5-spoke chrome wheels. The exhaust tips get rather dirty and I have a trailer hitch too. Keeping the bi-mode mufflers in the quiet zone hides some of the rumble from the headers. Since the cam and all internals have never been touched it idles slow and smooth. Being fairly old (72) with mostly gray on the few remaining hairs add to the first impression. My racing buddy uses a cane occasionally, so I'm considering taking a walker along to stroll through the pits together.
Then with a quick change of wheels I pull up to the line and rip off some 10's on the unsuspecting competition.
Great fun.
Then with a quick change of wheels I pull up to the line and rip off some 10's on the unsuspecting competition.
Great fun.
Burning Brakes
Joined: May 2012
Posts: 812
Likes: 1
Sweet baby Jesus... Didnt look like a 154 mph moving down the track at all. Sounded at idle a run of the mill cammed Z running a 130 mph pass....
Sleeper as farm truck? No, not at all but 154 is booking it.
Your driving ability can keep you in stock form being a sleeper, I'd imagine ported and milled headsCAI+Ported 102/102 TB+tune+NT05R tires on C5Z wheels and some light weight mods can make the average Z capable of hitting 10s pretty easily with a good driver. But I'm talking Z power which I don't consider a sleeper at all from the factory.
Sleeper as farm truck? No, not at all but 154 is booking it.
Your driving ability can keep you in stock form being a sleeper, I'd imagine ported and milled headsCAI+Ported 102/102 TB+tune+NT05R tires on C5Z wheels and some light weight mods can make the average Z capable of hitting 10s pretty easily with a good driver. But I'm talking Z power which I don't consider a sleeper at all from the factory.
Last edited by JUSTAC6; Jun 27, 2014 at 11:22 AM.
Racer
Joined: Feb 2008
Posts: 326
Likes: 0
From: Norman OK
Corvette being a sleeper is a tough call. Calling any c6z a sleeper is really tough.
I've tried to keep mine from being an obnoxious race car. The NPP mufflers help a ton but headers, cam, heads, blower most people realize its not stock. Being a narrow body car helps too. You get the "Oh it isn't a ZOh/GS"
I've tried to keep mine from being an obnoxious race car. The NPP mufflers help a ton but headers, cam, heads, blower most people realize its not stock. Being a narrow body car helps too. You get the "Oh it isn't a ZOh/GS"
Melting Slicks
Joined: Nov 2013
Posts: 2,590
Likes: 1
From: Sulphur Louisiana