[Z06] Surging after install
Thread Starter
Cruising
Joined: Feb 2011
Posts: 12
Likes: 0
Surging after install
I just got a Vararam CIA with power duct, lg street long tubes, and B&B bullet exhaust itstalled on my 03 Z06. Sounds awesome but runs like crap my check engine is on I know the sensors have to adjust, but how long should it take. Info anyone.
Racer
Joined: Sep 2009
Posts: 414
Likes: 1
From: CT
powerducts can cause turbulance issues due to MAF relocation which can lead to the crappy performance and check engine light, also the longtubes if you are running a catless midpipe can also throw the engine code, did you have a tune done? I am very sure if you get a tune it will correct everything and your car will run great.
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
With the VARARAM alone, there are ways to get the car to adjust with that alone. With LTs and HF cats, the best way to MAX out the power those will provide is a tune. Once you get it tuned out, the car will be a much more powerful ride!
Advanced
Joined: Aug 2010
Posts: 73
Likes: 0
From: Chesterfield Virginia
I have the vararam and a powerduct on my Z. I had codes too. What I ended up doing is calling Haltech and getting the honeycomb. It installs after the CIA and right in front of the mass air flow sensor. It smoothes out the turbulent air from the CIA. Disconnect the negative post on the battery install the honeycomb connect the battery back up. Start the car and let it idle for a few minutes and then drive the car normally at first so the computor could learn the changes. clear the codes before the install of course and you should be in business. My car was giving left and right bank lean conditions before the install. I haven't seen it since. ( about 2k miles ) The part is about 50 bucks and is pretty easy to install. Don't do like I did and go to the dealer first. I got robbed and they didn't fix the problem.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
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
Instructor
Joined: Nov 2010
Posts: 106
Likes: 0
From: Cibolo TX
I put the same set up on my car and had surging as well after a tune. Tuner told me the rt o2 sensor was bad so i replaced it and same thing. Got the Halltech honeycomb and 95 percent of the surge is gone but still have it alittle but its driveable now and really is not noticeable, before the honeycomb i didnt even want to drive it was so bad. My best advise is get the honeycomb for 50 before the tune and see how that works.
Racer
Joined: Aug 2008
Posts: 280
Likes: 0
From: San Diego/Imperial Beach Ca
I would give a call/pm to one of the tune guys and see if they can hook you up with a mail order tune first. ECS or RPM.
I have a very well sealed Vararam CAI, Power Duct, and the Haltech honeycomb and still get the lean codes but I'm going to send my ECM in for the tune. I still have a small amount of surging but is 90% better than what it was without the Power Duct.
I have a very well sealed Vararam CAI, Power Duct, and the Haltech honeycomb and still get the lean codes but I'm going to send my ECM in for the tune. I still have a small amount of surging but is 90% better than what it was without the Power Duct.
Melting Slicks
Joined: Sep 2006
Posts: 2,728
Likes: 142
From: Iowa
I'm so confused with this surging stuff.
Halltech says their honeycomb insert will fix it.
Tons of members here say the honeycomb insert fixed theirs.
People in this thread say the car needs a tune?
...so which is it? I installed a Halltech Venom 2 intake that relocated the MAF and am having slight surging. Appears to run ok up top, best I can tell, but it does seem to be surging.
My car has the OEM 1/16" design honeycomb insert in the MAF. I'm considering getting the Halltech one, but not convinced it will fix the issues. I don't know what to do or who to believe.
Halltech says their honeycomb insert will fix it.
Tons of members here say the honeycomb insert fixed theirs.
People in this thread say the car needs a tune?
...so which is it? I installed a Halltech Venom 2 intake that relocated the MAF and am having slight surging. Appears to run ok up top, best I can tell, but it does seem to be surging.
My car has the OEM 1/16" design honeycomb insert in the MAF. I'm considering getting the Halltech one, but not convinced it will fix the issues. I don't know what to do or who to believe.
