PDI Landcruiser FZJ80 and FZJ105 Petrol Front Mount Intercooler.

105 Core size: 675x300x76. Thats over 5.8 x greater surface area than the HDJ100 factory core, is thicker and better placed for increased cooling.

80 Core size: 585x300x76mm

Fits with all bull-bar and winch designs as the core sits back close to the condenser.

Intercooler pipes: 2.5” stainless steel with heavy duty silicon joiners. Silicon selection now simplified with no silicon in front of the front panel.

High torque stainless steel clamps.

The moulded end tanks with rear facing outlets have enabled a bigger core, then we pushed it back as far as possible to increase the draw through from the engine cooling fan. With the outlets being rear facing, the stainless steel pipes are connected to the intercooler with straight silicon.

During testing we have seen this maintain intake temps to 4-7degC above ambient temperature for normal around town driving.

When under load (on the highway towing a heavy trailer) running a steady 15-18psi with 150degC the intake temps sat 15deg above ambient. On a 20degC the intake temps got up to 35deg – you’ll have to trust us, but that’s really impressive.

AUTOMATIC TRANSMISSION COOLER

The transmission coolers available to fit with our kits are the best we could find. As well as the trans cooler being very good we also expect the transmission can hold the gear for longer and stay in lock-up, which reduces heat being made.

For the 105 the auto cooler bracket has three different positions for mounting. We recommend having them in the lower position to prevent heat transfer into the intercooler but if other items such as winches are fitted it would be good idea to have the transmission cooler lifted up for better cooling.

HD Transcooler Option.

                PLATES  DESIGN             DIMENSIONS                  HEAT DISSIPATION RATING

80     –    12 plate Stacked Plate     585mm x 150mm x 19mm   34.000BTU

105   –    13 plate Stacked Plate     560mm x 215mm x 32mm   45,000BTU

This is the best cooler we have ever seen and does an exceptional job at dropping transmission temperatures. A number of years ago, a friend needed massive cooling for his offroad race vehicle, which was auto and running a high powered FTE engine – in my 1 ride in this vehicle out the back of “the pines”, as well as being fast in and out of the corners, I just thought how hard he was on the transmission. He asked for a large (550x300x76mm) bar and plate intercooler, which he sealed the outlets and ran transmission fluid through it. After a few races he decided he needed more cooling so we supplied the 45,000BTU transmission cooler above, which he claimed made a big difference. A couple years later, he reported that at some point, due to mounting and the weight of the fluid filled intercooler it formed a crack, so he had to bypass it during a race and it made no difference to the overall cooling as the properly designed and suitably sized stacked plate core did such a good job. At that point the much larger bar and plate cooler was never refitted.

The ideal operating temperature for automatic transmission fluid is somewhere between 80 and 110 degrees C. Here’s what can happen above this range:

• At approximately 115 degrees C, important additives begin to cook in the automatic transmission fluid (ATF). The result is the formation of varnish inside the transmission.

• At approximately 125 degrees C, internal transmission seals, which are often manufactured from a polyacrylate material, begin to harden. The end results are internal and external leaks as the the seals lose their elasticity.

• At approximately 145 degrees C, transmission clutch plates begin to slip because the oil is breaking down further.

• At approximately 160 degrees C, seals and clutches effectively burn out. Carbon forms in the oil and your effectively killed the transmission. Often, a transmission will die within a few thousand km after experiencing 150-plus degree heat.

It is worth noting that the AT temp warning light on a 4 speed auto Landcruiser came on at 150degC and that generally means you are well beyond a safe temperature.