Matched-pair rebuild service for the Ferrari F40's twin IHI RHB53LW turbochargers. VU12B and VU13B water-cooled units, rebuilt together, balanced to matching specification, documented photographically at every step. In-house VSR balancing since 2008.
The F40's Tipo F120A V8 breathes through two IHI RHB53LW water-cooled turbochargers, one per cylinder bank, running roughly 16 psi to produce the car's official 478 horsepower. The units are mirror images: VU12B on the left bank, VU13B on the right. They are not interchangeable side to side, and every rebuild here treats them as the matched set they are.
IHI's water-cooled center housing was advanced equipment in 1987 and it is the reason so many F40 turbos have survived: the water jacket carries heat out of the bearing housing after shutdown, moderating the oil coking that kills air-cooled-only units of the same era. Even so, these turbos are now more than three decades old. Bearing wear, seal aging, and coolant passage scaling are the standard findings, and all of it is serviceable.
Every F40 pair rebuilt here is photographed at every stage, rebuilt with correct components, VSR balanced in-house to matching specification, and returned with complete documentation. These cars deserve nothing less and neither do their owners.
Every F40 turbo is over three decades old. Even pampered, low-mileage cars have accumulated bearing wear from heat cycles and the long storage intervals typical of collector ownership. Oil drains from the center housing during storage, and the next cold start runs the bearings dry for a moment. Rebuild on condition, not mileage.
Piston rings and seal components harden with age regardless of use. Oil weep into the compressor housings or smoke on startup after sitting are the classic signs. On a car where originality matters, catching this early keeps the rebuild standard instead of extensive.
The water-cooled center housings that protect these turbos also accumulate scale and sediment over 35+ years of coolant changes of varying quality. Restricted water passages reduce the post-shutdown cooling the design depends on. Passages are inspected and cleaned as part of every rebuild.
Cars that sit develop varnished oil passages and, in humid climates, corrosion on turbine-side components. Both show up at teardown on garage-kept cars that have covered few miles in decades. Documented photographically, addressed completely.
Start your rebuild request in our repair system. F40 pairs are rebuilt as matched sets with complete photographic documentation from intake through return shipment.
Start Your Rebuild Request37833 Pineapple Ave Unit A • Dade City, FL 33523 • sales@theboostlab.com