So, you’re thinking about adding a turbocharger to your ’99 Toyota Tacoma? It’s a popular upgrade for those wanting more power, and getting it done right involves understanding a few key stages of modification. Based on insights from experienced Tacoma owners, here’s a breakdown of what you need to consider when boosting your ’99 Tacoma.
For a basic turbo setup, targeting around 5-7 psi of boost—which can give you roughly 250 horsepower—you can keep things relatively simple. Many find that stock injectors and the stock fuel pump can handle this level, and an intercooler isn’t strictly necessary. The factory ECU might even compensate for the added boost. Kits like the LCE or KOracing options are designed for this entry-level boost. Essential modifications at this stage include welding a return line into your oil pan for proper turbo lubrication and addressing the EGR system, often with a resistor unless your turbo manifold incorporates it. Crucially, you’ll need a wideband air-fuel ratio (AFR) gauge to monitor your engine’s health.
Stepping up the boost beyond 7 psi for more significant horsepower gains requires more extensive upgrades. Fuel delivery becomes critical, necessitating higher-flowing fuel injectors. Common upgrades include pink top injectors from later model Tacomas or even Supra injectors. A higher capacity fuel pump, like a Walbro 190 or 255, is also recommended. To manage intake temperatures, an intercooler setup becomes essential; many find that universal eBay intercooler kits are effective for moderate boost levels. At this stage, you’ll also need a piggyback fuel controller to fine-tune your fuel management. Units like the AEM FIC are popular choices. Alternatively, a standalone ECU is a more advanced option, offering greater control but requiring expert tuning knowledge.
Pushing boost levels to 10-12 psi and aiming for 275-350 horsepower demands robust engine internals. A cometic head gasket and upgraded head studs are crucial to ensure engine reliability under higher cylinder pressures. You’ll also need larger fuel injectors, in the 300-500cc range. At these higher boost levels, piggyback controllers often become insufficient, and a full standalone ECU setup is generally required for precise engine management and safety.
Before diving into any turbo build on your ’99 Toyota Tacoma, the best advice is to research thoroughly. Look for “turbo build” threads specifically for Tacomas on forums and online communities. These threads offer invaluable real-world insights into potential issues, parts compatibility, and tuning strategies. You’ll see diverse approaches, from budget-friendly builds to high-end setups. Ultimately, the path you choose depends on your budget, mechanical skills, available time, and horsepower goals for your ’99 Toyota Tacoma.
