Camaro ZL1 tune. Nashville.
The LT4 supercharged 6.2 is one of the most responsive platforms we tune. Pulley + tune is the proven combination — easy 700+ wheel hp on pump gas, mid-800s on E85 with the right supporting mods. Mapped and road-tested at the shop — real power, no all-day wait.
Every Carma tune includes.
Real prices, no dyno-number runaround. Here's what comes with every flash — at no extra charge.
What we do for the zl1.
The LT4 wants pulleys, fuel, and headers — in that order. Stage 1 tightens the throttle, optimizes timing across the full RPM band, and unlocks the safe headroom GM left on the table. Going beyond Stage 1 is where the platform gets interesting: smaller blower pulley, full bolt-ons, flex-fuel system, methanol injection.
The LT4 pairs a 1.7L Eaton with direct injection — and DI is the detail that shapes the tune: there are no port injectors to lean on, so headroom is about the DI pump's duty cycle and disciplined spark. GM's factory calibration leaves conservative timing at peak boost and a soft pedal map; Stage 1 recovers both. Six-speed cars get no-lift-shift cleanup, and 10L90 autos get real shift-calibration work.
- Factory file pulled and archived (free stock-revert anytime)
- Custom-mapped on our dyno for your supercharger pulley + mods
- Three pulls + datalog review on every tune
- E85 / flex-fuel mapping for sustained high-output customers
- Lifetime support on revisions
Pricing for the camaro zl1.
Mods we pair with this tune.
The ZL1 formula is blower math: spin it faster, feed it cooler air, get the exhaust out of the way.
- Upper pulley — the LT4’s classic first step — with a proper map, the best $/hp on the car.
- CAI + blower lid — intake temps drive this platform; a lid and intake keep IATs sane on repeat pulls.
- Long-tube headers — big exhaust-side gains the LT4 rewards audibly and on the sheet.
- Flex-fuel / E85 blend — ethanol’s cooling and octane suit the DI blower combo perfectly.
- 10L90 shift calibration — the 10-speed’s factory logic is lazy. Tuned, it’s a weapon.
No dyno-number games, no hard sell. Drive it, and if the tune isn't for you, we revert to stock at no charge. That's how confident we are in the map.
Common questions.
Will the dealer detect the tune on my ZL1?
GM stores a tune-flag the dealer can read on most LT4 platforms. We offer free stock-revert before any planned dealer visit and re-flash after — included with every tune we did.
Do I need a smaller pulley to make real power?
You'll see 25–50 wheel hp gain on stock pulley with a tune. To get into the 750+ range you'll want a smaller blower pulley, an idler kit, and supporting mods.
What octane does the ZL1 tune require?
93 octane minimum. Stage 2 builds running pulley + flex-fuel use E85 for the maximum tune envelope.
How long does the ZL1 appointment take?
Stage 1: 2–3 hours. Stage 2 with mods to install: full day. Built-motor / pulley swap: multi-day project that we scope ahead of time.
Is the 10-speed auto worth tuning too?
Absolutely — the 10L90’s factory shift calibration is soft. Firmed up, shifts land faster and the car stops hunting gears on track. Manual cars get no-lift-shift and rev-match refinement instead.
What about heat soak on back-to-back pulls?
The 1.7L blower heat-soaks like every positive-displacement setup. A lid, an intake, and honest IAT-referenced spark mapping keep pull five within a few horsepower of pull one — that consistency is half the point of a good tune.
Does the ZL1 1LE need a different tune?
Same powertrain, same calibration path. The 1LE’s aero and rubber just put the result down harder — nothing changes but the grip.
Book your Camaro ZL1 tune.
Drop it off in the morning, drive it home tuned by end of day. 1035 3rd Ave S, Nashville, TN 37210 · Mon–Fri 8 to 5.