Category Archives: Dyno tuning

Nissan TB48 turbo Torque Monster

Dyno tuning a Nissan Patrol TB48 4.8L six. The engine is now rebuilt with forged pistons and rods and features a custom JPC turbo at 10psi boost and MoTeC EFI. Not built for outright power, but instead good throttle response and reliability the engine will be going into an off-road dirt truck. Initially making close to 600Ib.ft at just 3000rpm, torque was backed off for the truck’s first shake down runs. A final figure of 559hp was achieved, not bad for a low boost application.

1200+hp Nissan RB30 turbo engine dyno

Nissan RB30 SOHC 3L engine built and tuned by JPC making 1250hp on Ethanol fuel. The engine still retains a factory block and crank. Improvements come from a custom JPC turbocharger, manifolding, roller rockers and cam gear. Fuel is fed via ID2000cc injectors and an Autronic computer system.

This engine has previously run 8.79 at 160.25mph (with less power) in a full weight (3250lb) Holden VL commodore through stock suspension, Powerglide transmission, 9in rear end and 28x9in slicks.