This article delves into enhancing the performance of the Toyota 7MGTE engine, a favorite among car enthusiasts. While the original article documents a 2JZ swap, we’ll focus on upgrades applicable to the 7MGTE itself, touching upon crucial components like the clutch, turbochargers, and cooling system. Although the 7MGTE predates OBD2, understanding modern diagnostic approaches is vital when modifying these engines. Let’s explore key upgrades that can significantly boost your 7MGTE’s performance.
One of the initial major upgrades discussed was a high-performance clutch. The OS Giken Twin STR clutch is a significant step up from stock, designed to handle much higher torque levels. This is essential when planning power increases, as the stock clutch is a common bottleneck. Upgrading the clutch ensures reliable power transfer and improved driving feel, especially in performance applications.
OS Giken Twin STR Clutch Kit for Toyota 7MGTE Engine
Close-up of OS Giken Clutch Discs and Pressure Plate
Components of the OS Giken Twin Plate Clutch System
Next, the article highlights turbocharger upgrades. The selection of twin GT28 turbos, modified to fit the stock housings, represents a substantial power increase. These “STU turbos,” as mentioned, are designed to deliver impressive gains, aiming for the high 400 horsepower range on pump gas and potentially 500-600 horsepower on race fuel at the wheels (RWHP). This kind of upgrade transforms the 7MGTE’s performance, providing significantly more power and responsiveness.
Twin GT28 Turbochargers for 7MGTE Engine Upgrade
Comparison of Stock Turbo Housing with GT28 Center Section
With increased turbocharger capacity comes the need for supporting modifications. Upgraded water and oil lines for the turbos are crucial for reliability and performance. Furthermore, switching to US-spec components like camshafts and injectors indicates a move towards higher performance and potentially better parts availability and tuning support within the US market.
Addressing the cooling system is also vital in a performance build. The article details the challenge of mounting a Jim King 7M AC compressor onto a 2J engine, but for 7MGTE upgrades, focusing on cooling efficiency is key. The modification of a 7M bracket to fit the AC compressor highlights the custom work often involved in performance enhancements.
Modified 7M AC Compressor Bracket for Engine Conversion
Close-up of the AC Compressor Mounting Solution
Different Angles of the Custom AC Compressor Bracket
Installed AC Compressor with Modified Bracket
Another important cooling system upgrade is the clutch fan. The article mentions using a 7M 10-blade fan with a Tundra clutch fan. This combination was chosen to fit within the limited space and improve cooling capacity, which is especially important with higher horsepower outputs. Effective cooling prevents overheating and ensures consistent performance.
Tundra Clutch Fan Upgrade for Improved 7MGTE Cooling
Side-by-side Comparison of Stock Fan Clutch and Tundra Clutch Fan
Installed Tundra Clutch Fan on 7MGTE Engine
The mention of EGR (Exhaust Gas Recirculation) addition, requiring drilling the head, is a detail that might be relevant for certain emissions requirements or engine management strategies. While not directly performance-enhancing, it shows the level of detail considered in the build.
EGR System Added to the Modified Engine
Close-up of EGR Valve and Connections
Engine Head Modification for EGR Installation
Finally, the article shows the engine installed, emphasizing the aesthetic aspect with painting. While appearance is subjective, a clean and well-maintained engine bay is always a plus.
Engine Bay with Newly Installed and Painted Engine
Various Views of the Engine Installed in the Vehicle
Close-up Shots of the Engine Bay Detailing the Installation
Completed Engine Installation in the Car
In conclusion, while the 7MGTE predates OBD2 standards, modern engine management systems and diagnostic tools are frequently used in performance tuning. Upgrading components like the clutch, turbochargers, and cooling system are fundamental steps in enhancing the 7MGTE’s power and reliability. These modifications, combined with careful tuning and attention to detail, can unlock significant performance gains from this iconic Toyota engine. For those seeking to push the limits of their 7MGTE, understanding these core upgrades is essential, even as they consider modern engine management solutions and diagnostic approaches.
