Spool Nissan SR20 91mm Stroker Crankshaft

Overview

Nissan SR20 91mm stroker crankshaft.

Rated at 1500HP plus

With the increased cubic capacity from the 91mmstroker crank, big increases in torque and low to mid range power are achievable. Boost will come on earlier in the rev range and peak power will increase.

The SR20DET engine in its factory form has a 86mm bore and 86mm stroke, giving a displacement of 1998cc.

Using the 91 mm stroker crank, std length Conrods and Custom Pistons, the displacement is increased as follows:

• 86.5mm bore and the 91 mm stroker crank = 2139cc / 110cc increase
• 87 mm bore and the 91 mm stroker crank = 2164cc / 133cc increase
• 90mm bore ( sleeved ) = 2316cc / 318cc increase

Engine build fitment

SR20. Match the selected dimensions, engine generation and rotating assembly specification before machining or assembly.

Installation and BBT workshop support

Measure journal and thrust clearances, check block clearance and balance the complete rotating assembly. Confirm the damper, crank trigger and flywheel arrangement with your engine builder.

Built by Boost & Tune is an authorised Spool Imports dealer and can assist with component selection, engine assembly and tuning requirements for your build.