Big Turbo (BT) Version
The Big Turbo version of our FD Idler Pulley Kit was designed to clear virtually any turbo, including the GT42. The pulley assembly is the same ultra reliable unit from our Original kit. The new bracket along with the entire kit is still a bolt in! It’s new location is one bolt hole CCW of the original mounting position.
Pineapple Racing’s CNC Big Turbo Idler Pulley Kit has been designed from the ground up and is made from high quality components.
Intended for installation when you remove the secondary air pump from your RX-7 FD engine usually during single turbo conversions. Normally removing the air pump means that there is a serious lack of contact patch on the water pump pulley from the main drive belt.
Many owners have seen belt slip at high RPM from thi reduction in belt contact on the Water pump pulley, This can ause reduced cooling system efficiency and even risk your engine overheating.
Please note that Pineapple Racing this kit is the TB version of the standard Idler Kit for applications where larger size turbo’s may cause clearance issues with the standard idler pulley kit.