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10-18-2019, 08:27 AM
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#1 |
 Drives: 2010 Camaro SS L99 Join Date: Apr 2012
Location: usa
Posts: 180
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2018 ZL1 A10 Tune
Hello guys, i need to know if someone put headers without cats and change pulley in his ZL1 without tune the car...…
i have LT headers with no cats and i want to install them…. the pulley can wait but i need to know if the stock tune can work with that mod. and for last if is a 100% sure the we need to unlock the TCM to make this car tune correctly or if i can get inly the ECM tune without unlock the TCM. thanks for the help. 
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10-18-2019, 10:51 AM
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#2 |
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Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
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You need a tune. You are leaving HP on the table absent a tune. You also risk a lean condition which will cause significant engine damage. Now 25 people can come in and post how they ran LTs without a tune and nothing happened. Irrelevant, the risk of running dangerously lean is real and LTs without a tune loses much of the potential HP gain.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
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10-18-2019, 11:16 AM
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#3 |
         
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You need a tune as well..
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10-18-2019, 02:11 PM
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#4 |
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H-Town Camaro Club Member
Drives: 17 Hyper Blue Metallic KLR-ZL1 Join Date: May 2009
Location: Pearland Tx.
Posts: 2,035
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Definitely need a tune if your doing a cat delete. It will throw O2 sensor codes.
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10-19-2019, 06:42 AM
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#5 |
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Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018
Location: RGV Texas
Posts: 1,527
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Need an ECM tune for sure. You do not need a TCM tune at this point.
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10-19-2019, 08:27 AM
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#6 |
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Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
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Yep, catless headers will need a tune no matter what, no if's and's or butt's about that.
Question is if you are going to putt headers and a pulley why wouldnt you want to tune it? The pulley wont do a thing other than bring into boost sooner, if you dont tune the car to change when the ECM open or closes the bypass valve all it is going to do is hit max boost sooner in the RPM range and then the ECM is going to open the bypass valve and bleed off the excess boost that the pulley gains you. If you ware going down the mod route then set aside $1500 and get a proper ECM and TCM tune. It will make a night and day difference in the car.
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2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp
2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD |
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