HP Diesel

  If you have a turbodiesel and you find it struggling on hills or overheating when towing, the factory 80-series intercooler could be the culprit, affecting power and fuel efficiency. Be it a Toyota Land Cruiser 80 Series, a Hilux or a Nissan GU Patrol, High Performance Diesel (HPD) has Australian-engineer ed intercooler kits made for your platform, including the 80 Series intercooler. This is what you need to know. Understanding the Function of an Intercooler Your turbocharged engine has an important part called the intercooler. The turbocharger heats the compressed air, which reduces its density and oxygen content. This can have an effect on engine performance, especially during fuel combustion and exhaust gas temperature rise. An intercooler is a heat exchanger that cools the compressed air between the turbocharger and the engine intake, increasing its density and oxygen content, which in turn improves engine efficiency, power, combustion, and fuel economy. Factory intercoolers...

  High exhaust gas temperatures are not just a number under the gauge but they’re the indicators that your engine is working harder than it should. And if you’ve ever hauled a heavy trailer up a long climb then you must know exactly what that feeling is when you keep glancing at your temps. If you left these unchecked then they shorten the life of your turbo, your injectors and your motor itself. A larger GU patrol intercooler will not fix a badly tuned engine. But on a GU that is otherwise healthy it is one of the most effective upgrades you can make for heavy or serious towing. Because cooler charge air means the engine does not have to fight itself to make power. Why EGTs Climb Quickly When Towing With a GU Patrol Your vehicle engine operates under sustained load when you hitch up a boat or trailer. And this forces the turbocharger to work harder while compressing air at higher pressures. The Heat Problem Most Patrol Owners Notice First Compression naturally generates heat. As t...

  If you drive a GU Patrol, you know it’s a workhorse. It handles long highway hauls, towing, steep climbs, and tough off-road conditions without complaining.  But even these capable vehicles sometimes feel like they’re holding back. You push the accelerator, and the torque doesn’t always hit as sharply as you’d expect. That’s where heat and airflow play a bigger role than most people realise. The stock intercooler does a decent job, but under heavy loads or high temperatures, compressed air from the turbo loses density. Less dense air means less oxygen reaching the engine, which can dull torque output.  This is why an upgraded GU Patrol intercooler isn’t just a number on a spec sheet. It helps your engine deliver power more consistently when you need it most. How Torque Impacts Performance Torque is what gives your Patrol that strong pull, whether you’re climbing steep inclines or towing a trailer. Cooler, denser air from a proper intercooler ensures the cylinders get th...