You are browsing camaro5 
 |
|
03-02-2016, 06:36 PM
|
#1 |
     Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
Off road cats to cats..retune?
I'm planning on getting speed engineering headers with the off-road setup. Had cat less setup on my old G8GT, which was tolerable. My question is, if I have the car tuned with the offroad setup, then a year later I add cats, would I require a retune?
|
|
|
|
03-02-2016, 06:58 PM
|
#2 |
 Drives: 2010 2ss RS. White (RIP) 2012 LS3 Join Date: Sep 2011
Location: Central Jersey
Posts: 484
|
I want to know this too
|
|
|
|
|
03-02-2016, 07:35 PM
|
#3 |
    
Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010
Location: Clermont, IN
Posts: 3,297
|
I dont see why you would have to. Something to ask your tuner.
__________________
2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419.
Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!! |
|
|
|
|
03-02-2016, 07:37 PM
|
#4 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
This was an answer on a different forum I'm in... "Depends on how it was tuned for no cats. Was the cat fuel enrichment turned off? If it was you'll burn your cats out in no time."
:/ |
|
|
|
|
03-02-2016, 07:46 PM
|
#5 |
|
Obsessive camaro disorder
|
I have the same set up..interested to know how it runs after the tune
__________________
**2010 2ss/rs**
 |
|
|
|
|
03-03-2016, 07:02 AM
|
#6 |
|
old school chevy rodder
|
I would think no that it does not need a retune as high flow cats are that...no resistance felt. I would hope though you have kept the 02 sensors in the loop with no cats ..... the front ones usually get a delayed response code that you should have already had to alter in the tune so you should not need a retune. The rears get deleted in the tune but still remain in place and if they heat up... I dunno, some have asked before if they could delete the fronts...... and of course the answer is no, its what adjusts the AFR.....to go more toward Stoic ..... and if people being as they are have deleted the fronts they are well...... Nutso and asking for trouble IMO. Now cars have 4 o2s and not 2...... And the funny deal is:: its a ten thousand dollar per car fine for a shop to knowingly remove your cats....... If they were caught, so all these people who run catless... man they sure don't want anyone looking under their car for a traffic stop! Imagine that some cop gets bent and your in front of a judge who asks you who took off your cats? and you did not even replace with high flow cats....,( here in Oregon its legal to replace stock exhaust with headers), then judge sicks EPA on the shop.... you being so loud have a Fix it ticket for repairs or prove the sound is within such level... actually have seen a judge go out to parking lot to check and not accept a receipt as proof.... Its a mess, I would rather just run the HFC's as I do and live with it and change them out every 50k or so..... like check them every other time my springs are done.
__________________
2021 Wild Cherry ZL1 A10, Sunroof, Data,Red Carbon Interior, Nav, RotoFab Big Gulp , Elite x2ultra, Borla ATAK, Driveshaft shop, BMR susp, Speed covers, intercoolers, ATI , 2650 MAG, DSX lid, 103 NW, TSP Longtubes & cats, LPE, 1le mods, ,LME cover, Katech pump and chain, Trunnions, BTR stage 2, LPE boostapump, Gforce, Speed eng , Granetteli, etc etc
 |
|
|
|
|
03-03-2016, 10:46 AM
|
#7 |
|
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,706
|
In IL its only a computer check. Used to have a sniffer, but not anymore. I remember when I brought in my cammed G8 with off road pipes to the testing facility. Stunk up the whole place, and all you heard was the car idling. All the testers knew it was me, but they couldnt do anything about it. Lol
|
|
|
|
|
03-03-2016, 01:00 PM
|
#8 | |
|
Quote:
Cat over temp protection kicks in more fuel to cool off cats. It will probably be turned off for a cat less setup to have better fuel efficiency. Other than that, some minor tweaking on the closed loop sensors that won't make a huge difference. Most won't even touch these settings from stock. |
|
|
|
|
|
03-04-2016, 09:10 AM
|
#9 |
Drives: 2018 Redline Edition 2SS Join Date: Dec 2014
Location: Mays Landing, NJ
Posts: 778
|
My tuner said no retune needed when I did the same thing.
__________________
2018 Redline Edition 2SS- A8, NPP, MRC, Recaro seats, ECS Novi 1500 tuned by EFX, cat deletes, Mighty Mouse Wild CC, GM STB, smoked ZL1 3rd brake light, Xpel XR Black 35% tint all around, Street Scene front splitter, C7 Carbon ZL1 side skirts Drake Muscle Car wicker bill, Adams Polishes Ceramic Coating
2010 Infiniti G37x Sedan for the DD. |
|
|
|
|
|
|
|
 |
|
|
