When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
"Surging" with Halltech + LS3 ?
I ordered a killer bee for my 2009 LS3 , and have been reading about some "surging" on LS3's .... Anyone have any more info about this , how it can be fixed / avoided ?
I think from what I have been reading on this issue is that most of the surging issues are happening when people also cut the shrouds for more fresh air. There was a guy on here last week saying that he put in a VetteAir (for more cold air) and a high flow filter. He made a restrictor plate to restrict the flow of cold air to his filter and the surging issue went away for him.
Doing both a high flow filter and lots more cold air seems to throw the engine into confusion and surging....
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
Originally Posted by C6NRED
I think from what I have been reading on this issue is that most of the surging issues are happening when people also cut the shrouds for more fresh air. There was a guy on here last week saying that he put in a VetteAir (for more cold air) and a high flow filter. He made a restrictor plate to restrict the flow of cold air to his filter and the surging issue went away for him.
Doing both a high flow filter and lots more cold air seems to throw the engine into confusion and surging....
So do you think the cutting of the two small tabs at the bottom of the radiator shroud wont cause this ? Or is that enough air to screw the computer up ....
I had the problem with the Vararam.. It took a couple of tune sessions to get rid of it. IF you have Headers with Cats you can turn off the rear O2 sensor and it will stop. Your'll lose a couple of mpg this way though. Installing a front plate that blocked the Vararam snorkel brought back the problem only worse. This is what happens when you leave the tested waters of OEM. And yes with the Vararam the shroud must be cut.
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
Originally Posted by Boomer111
I had the problem with the Vararam.. It took a couple of tune sessions to get rid of it. IF you have Headers with Cats you can turn off the rear O2 sensor and it will stop. Your'll lose a couple of mpg this way though. Installing a front plate that blocked the Vararam snorkel brought back the problem only worse. This is what happens when you leave the tested waters of OEM. And yes with the Vararam the shroud must be cut.
I plan on getting a re-tune anyway , so hopefully it will not be an issue .
What does the surging feel like ? Does it happen at idle , WOT ....?
Surging was present most noticeably around town at constant speed. Just a sort of bucking or hesitation. Might be hard for a passenger to feel it. Not under acceleration. When I block the snorkel with the license plate the same symptoms became much more severe, really ran like crap then.
i think the issues most guys are running into are one of 2 issues.
1. they have a vacuum leak after the MAF sensor, need to be 100% sealed and its easy to not get a perfect seal on those hoses.
2. These MAF sensors are extremely sensitive and accurate what they measure and how fast they do it is pretty unreal,,whenever you swap out an intake tube the MAF starts seeing different info and causes all sorts of issues (surging and code setting) Your car kinda gets tuned to the way you drive it and has maps to your style. You can either reset the computer by unhooking the battery for a half hour and that can help but i would recomend a tune and all your problems will be solved. good luck, paul
I've got an 08 LS3, Halltech Killer Bee intake & the Vette Air scoop.
The setup has been on my car for about 2 years.
I haven't experienced any surging at all.
I would contact Jim Hall at Halltech directly about the issue.
He's a great guy & usually responds quickly to emails.
08 LS3 - Killer Bee, Bee Hive, Vette-Air, Ported TB & No Tune - NO codes or surging.
Leaks cause surging, one time my filter slipped off the end of the Halltech, which left a very small opening, which caused surging until I retightened filter, no problems sense
Very happy with my CAI combo
Last edited by ///DarkSide\\\; Nov 24, 2009 at 09:13 PM.
Halltech Killer Bee on my 08 with the Beehive and two cut-outs in the shroud. No surging at all. I had a Vararam (POS) on for about 6 months and did have some surging at light throttle. I don't think you will have a problem with the Halltech.
Thanks for the info everyone - Just to clarify , havent even put it on yet , just want to be prepared for anything that pops up ...
Before I had my cam I put about 4k miles on a halltech beehive/longtube combo. I had some mild surging on my initial tune but after England Green tuned it no surging at all. To be clear this is before my cam. I also had no surging before the initial tune but I wasnt running headers then either. 08 ls3