Description
An engine swap bay where a mechanic fits an I4, V8 or EV block into a car, changing its sound, power and weight, with the engine blocks consumed as real inventory items. It is the depth play that sits above a basic upgrade menu, a server that offers engine swaps signals a serious tuning scene, and that is what justifies the price.
Prompt Template
Write a FiveM Lua resource "engineswap", swap the powerplant (I4/V8/EV) of the…
The full prompt template and its reference Lua are part of a one-time pack. Pick your depth, both are lifetime access, no subscription, ever.
- 60 prompts + syntax-validated reference Lua
- Lifetime access, pay once
- All 510 prompts, the full library
- Per-prompt profit/trend intelligence (CSV + playbook)
- Lifetime free updates, new niches as the market moves
$49 for 60 · $199 for all 510 + intelligence, one-time, no subscription.
Expected Output
The reference Lua at content/expected-outputs/mechanic/04-engine-swap-bay.lua validates the engine-block item and charges labour server-side, removes the block, persists the fitted powerplant per…
The full prompt template and its reference Lua are part of a one-time pack. Pick your depth, both are lifetime access, no subscription, ever.
- 60 prompts + syntax-validated reference Lua
- Lifetime access, pay once
- All 510 prompts, the full library
- Per-prompt profit/trend intelligence (CSV + playbook)
- Lifetime free updates, new niches as the market moves
$49 for 60 · $199 for all 510 + intelligence, one-time, no subscription.
Known Failure Modes & Corrective Prompt
- Client-side item removal, the block is consumed locally, so the player keeps it. Remove + charge in the server event.
- Audio swap ignored,
ForceVehicleEngineAudiois called with the engine running and silently no-ops. Toggle the engine off then on. - Unvalidated swap:done, the server fires it without checking the item, so a crafted client self-grants any block.
Corrective re-prompt: Move the item check, labour charge and item removal into the swap:request server handler, only emit swap:done after all three succeed, and on the client wrap the profile apply in SetVehicleEngineOn(veh,false,...) / SetVehicleEngineOn(veh,true,...) so the audio profile actually changes.
Framework Integration
QBCore: Player.Functions.GetItemByName('engine_v8') to verify the block and Player.Functions.RemoveItem to consume it inside the server handler; persist the fitted block on player_vehicles.
QBox: use exports.ox_inventory:Search / :RemoveItem and exports.qbx_core:GetPlayer(src); store the swap via oxmysql.
ESX: ports via xPlayer.getInventoryItem / xPlayer.removeInventoryItem if extended to ESX, same server-side gate.
Profit Potential
$250-$3500/mo on Tebex (expected ~$900), priced in the upper $50-389 band; a rising depth niche (top sellers clear around $11.85K/mo, comparable Tebex) supports solid mid-volume units.
Trend Signal
↗ rising, strategy: engine swaps are the depth play above the 3.75-rising tuning baseline in the niche matrix.
Sales Angle
Sell the depth a basic upgrade menu can't touch, a real powerplant swap with consumable blocks and changed engine note. Recommended Tebex price $169.
Difficulty & Ship Time
advanced · ships in 2-3 days.