Crossing the radioactive sands with a broken starter motor is an easy way to get stranded in SawyerK Games' wasteland driving simulator. Mastering your first Apocalypter engine swap is the single most important milestone for surviving longer runs, scaling steep cliffs, and outrunning mutant packs. If you neglect an Apocalypter engine swap, your underpowered rig will quickly overheat, chew through scarce fluids, and leave you defenseless when hostile coyotes or raiders open fire on your chassis.
Upgrading your vehicle is not just about raw straight-line speed. It governs how much weight in scrap metal, supply crates, and harvested meat your car can haul across procedurally generated dunes. In this comprehensive breakdown, we cover everything from locating high-tier blocks to plumbing radiators, configuring the part adjuster tool, and fine-tuning your final drive ratios.
Step-by-Step Guide to Performing an Engine Swap
Executing an Apocalypter engine swap requires the right tools and a secure staging area. You cannot comfortably work on an engine block while hostile runners, mutant dogs, or sand worms are swarming your position. Find an abandoned camp, a cleared lookout post, or a sheltered duplex garage before stripping down your bay.
To swap motors, you need a basic wrench or the dedicated passenger-side toolset. These tools allow you to unbolt mounted vehicle parts into interactable objects. You will also want small, medium, or large repair kits on hand to restore worn engine health before bolting the new block into your vehicle frame.
Follow this sequence to complete the swap:
- Bring your vehicle to a complete stop on level ground and engage the handbrake to prevent your car from rolling away down a hillside.
- Equip your wrench or pick up the toolset from the passenger side, aim at the existing motor, and unfasten the block along with its attached exhaust pipe.
- Remove the old motor from the bay, store it inside your cabin, weld it onto a rear seat frame, or abandon it to shed deadweight.
- Inspect the condition of your replacement engine, using a repair kit from your inventory to raise its durability percentage.
- Check and fill the engine oil reservoir using a motor oil can before mounting, verifying capacity on the dipstick to prevent premature seizure.
- Align the replacement engine into the empty engine bay until the wrench or gear icon highlights, then press your interaction key to lock it into position.
- Reattach a compatible exhaust pipe to the block to ensure proper exhaust gas routing.
- Install an adequate radiator nearby if moving from an air-cooled starter to a liquid-cooled multi-cylinder engine.
Once fastened, enter the driver seat, turn the ignition, and check your dashboard gauges to confirm that oil temperatures and RPM levels remain within safe running ranges.
Apocalypter Engine Roster: Specs, Types, and Horsepower
The wasteland contains an assortment of motors scattered across abandoned wrecks, faction compounds, and trader inventories. Choosing the right power unit depends on your fuel availability, cooling equipment, and whether you favor high-RPM road cruising or high-torque rock crawling.
According to official game specifications, any car part can physically be installed on any chassis, though your vehicle can only run a single engine at a time. The table below details the motors documented across survivor camps and merchant tables.
| Engine Model | Fuel Type | Displacement / Cylinders | Power Output | Torque Rating | Transmission / Cooling |
|---|---|---|---|---|---|
| Starter Stock Motor | Gasoline | Low Displacement / 2-Cylinder | 23–59 HP | Low Base Torque | 4-Speed Manual / Air-Cooled |
| Economy Trader Motor | Gasoline | 1.2L Small Block | Unlisted Base | Moderate Economy | 4-Speed Manual / Liquid-Cooled |
| Standard Inline-4 | Gasoline | Mid Displacement I4 | Unlisted Base | Moderate | 4-Speed Manual / Liquid-Cooled |
| High-Output V6 | Gasoline | 2.8L V6 | 115 HP | Balanced Mid-Torque | 5-Speed Manual / Liquid-Cooled |
| Heavy-Duty Inline-6 | Gasoline | 3.7L I6 | 145 HP | 292 Nm | Manual / Liquid-Cooled |
| Big Block V8 | Gasoline | 7.0L V8 | 355 HP | 569 Nm | Turbo / Blower Compatible |
| Light Diesel Block | Diesel | Inline-3 (Uneven Cylinders) | Unlisted Base | High Low-End Pull | Heavy-Duty Diesel Gearbox |
| Heavy Diesel Workhorse | Diesel | 3.0L Inline-5 | 87 HP | 172 Nm | High Torque / Heavy Towing |
The starter engine is an air-cooled unit that produces barely enough power to climb moderate hills. If you encounter steep inclines, this motor quickly stalls out under heavy chassis loads. Moving up to the 1.2L gasoline engine—which can occasionally be bought from wanderer merchants for 331 rusted nuts—delivers a noticeable bump in baseline reliability.
The 2.8L V6 engine serves as the ideal mid-game upgrade for aggressive wasteland exploration. Generating 115 horsepower through a 5-speed transmission, it provides sufficient top speed to evade sniper fire and high torque to scale rough terrain. For maximum speed runs, players turn to the 7.0L V8, which accepts forced induction modifications like double blowers or tri-turbo setups.
Diesel enthusiasts can scavenge the unique inline-3 or the 3.0L inline-5 engines. While the inline-5 diesel tops out at 87 horsepower, community members note that its 172 Nm of torque makes it an exceptional workhorse for hauling heavily laden vehicles stacked with metal crates and defensive armor plates.
Engine Cooling, Motor Oil, and Survival Essentials
Before mounting a replacement during an Apocalypter engine swap, consider your chassis cooling capacity. While basic starter engines operate without liquid radiators, larger engines like the 2.8L V6 or 7.0L V8 produce substantial heat that will destroy uncooled cylinders within minutes of sustained driving.
Radiators are found in small and medium form factors throughout abandoned shipwrecks and coyote outposts. A dry radiator is completely useless; it must be manually filled with fresh water. Water is the rarest survival resource in the game, forcing you to balance your personal hydration against your vehicle's operating temperature.
Vehicle Engine Maintenance Priority:
- Radiator Water Level: Prevents catastrophic overheating and rapid block damage
- Motor Oil Level: Lubricates pistons; prevents catastrophic engine seizure
- Block Health %: Repaired with small (2), medium (5), or large (8) toolkits
- Temperature Gauges: Monitor coolant and oil heat during high-speed hill climbs
When looting POIs, prioritize high-standing water collector towers and portable dew collectors. You can siphon water from stationary jugs using your personal canister, then pour the fluid directly into the radiator neck until full. Keep a spare water container secured in your cabin to top off coolant leaks caused by rough driving or ballistic damage.
Motor oil management is equally critical. Engines like the 2.8L V6 require adequate oil volume—typically around 5 liters—to function smoothly. If your oil level drops down toward 1.7 liters or runs dry, the engine will suffer rapid wear, quickly dropping from 80% condition down to zero. You can monitor your vital signs by scavenging dashboard gauge clusters, specifically dedicated oil temperature and coolant temperature gauges.
Using the Part Adjuster Tool for Custom Bay Layouts
One of the standout features detailed on the Apocalypter Steam store page is total build freedom with zero arbitrary attachment restrictions. You can mount engines, exhausts, headlights, and body panels anywhere on your chassis using the dedicated part adjuster toolset.
The part adjuster tool is found mounted directly behind the driver's seat in your vehicle cabin. Interacting with this toolbox activates a positional overlay that lets you translate and rotate attached vehicle components:
- Press your primary interaction key (default
F) while aiming at an installed motor, exhaust pipe, or radiator to select it. - Use the on-screen direction controls or dedicated numpad buttons to slide the selected part along the X, Y, and Z axes.
- Rotate the angle of the component to clear chassis crossmembers, route custom headers out of the hood, or tilt a massive radiator back for better airflow.
- Confirm the placement to weld the part firmly into its customized position.
Because larger powerplants like the 2.8L V6 often protrude through the standard rear engine firewall or hood, players frequently use the adjuster tool to raise the block upward or angle custom six-pipe exhaust headers out the side of the vehicle. Modifying these positions also protects delicate engine hitboxes from head-on ramming impacts against aggressive wildlife.
Vehicle Tuning: Gear Ratios, Wheel Grips, and Final Drive
A successful Apocalypter engine swap involves more than just dropping a block onto the frame; you must tune your drivetrain to match the engine's output curve. Installing a 355-horsepower 7.0L V8 on tiny stock wheels will spin out your tires without producing meaningful forward acceleration.
According to player testing on the Steam forums, every engine block features an adjustable "Final Ratio" setting that drastically impacts your vehicle's top speed and acceleration:
- Lower Final Ratio Settings: Unwinding your final drive toward the minimum setting dramatically boosts top speed at the expense of launch acceleration. In community testing, dropping the final ratio on a 300HP engine increased its maximum road speed from 120 km/h up to 280 km/h.
- Higher Final Ratio Settings: Screwing the final ratio higher creates rapid low-end acceleration and crawling power, ideal for climbing rocky cliff faces, but severely lowers top speed.
- Performance Ratios: Players running forced-induction 7.0L V8 setups report setting their final gear drive to 4:10, allowing the speedometer needle to peg out completely on open flats.
Tire choice directly influences how your powertrain meets the wasteland floor. Tires come in five distinct variations, including base wheels, semi-slicks, and heavy-duty UTV rear tires. UTV tires offer broad surface contact and a high 0.9 grip rating, making them essential for navigating rough dunes.
However, community reports note an interesting quirk: mounting oversized wheels on smaller chassis can drop top speed from 160 km/h down to 120 km/h due to rolling resistance, whereas running smaller 0.9 grip wheels on flat asphalt can net up to 30 km/h of additional top-end speed. Balance your wheel size based on whether your route follows broken asphalt roads or open desert sand.
Frequently Asked Questions
Can I install twin engines during an Apocalypter engine swap?
No. Player experiments on the Steam discussion forums confirm that you can only attach one functional engine block to a vehicle at a time. However, there are no chassis restrictions on which engine you choose, meaning you can mount massive heavy-duty truck diesels or V8 blocks into compact passenger frames.
Why is my new engine losing health and smoking after an Apocalypter engine swap?
Engines take rapid structural damage if they lack motor oil or run without sufficient cooling. If you swapped to a multi-cylinder engine like the 2.8L V6 or Inline-4, verify that you have attached a functional radiator, filled it with water, and topped off the motor oil capacity using an oil jug.
Where can I find high-tier replacement engines in the wasteland?
Engines can be found inside abandoned vehicle skeletons, at coyote and scrapper faction camps, inside multi-level industrial landmarks, and occasionally in the stock of wandering merchants for rusted nuts. High-threat hostile camps frequently house chop-shopped car chassis containing mid-tier blocks like the 2.8L V6.
