NSX > ENPP > ScienceofSpeed Custom Engine Program

forced induction
engine program

ScienceofSpeed FI Custom Engine Program

Utilizing our high performance internal engine components, ScienceofSpeed offers a custom engine program for increased power through turbo and supercharged forced induction.

ScienceofSpeed offers these custom engine packages as a component package for your engine shop to complete or as a turn key fully rebuilt engine ready for installation.

In our turn key program, ScienceofSpeed will tear-down, modify, and rebuild engine. In addition to high performance modification, all wear items including seals, gaskets, & bearings are replaced to bring engine to fully rebuilt condition. Once completed, engine is ready for installation. Engine can either be removed at our facility in Tempe, Arizona, or the complete engine can be freighted to our facility for modification.

Turn-key program includes new timing belt. New water pump and oil pump can be added. Individual components of packages can be purchased separately by "clicking for detail". Engine potential bhp ratings are at the crank and as with all high power engine builds, durability largely depends on tuning and care of engine.

ScienceofSpeed Engine Packages:


Stage 1 (91-94 NSX): 500 wheel / 570 crankshaft horsepower
turn-key assembled package: $5680.00
Engine design for 500 wheel horsepower (570 crankshaft hp). Retains factory cast iron sleeves. This package is only designed for 3.0L engines (3.2L engines are equipped with FRM cylinder blocks and must be sleeved - see Stage 2). Balanced & blueprinted rotating assembly may be added to this stage. ScienceofSpeed forged low compression piston with Xylan skirt coating, rings, pins, & locks bush small rod end for floating piston MLS head gasket set (click for detail) polish crankshaft journals full cylinder head & cylinder block internal gaskets, seals, & bearing set new timing belt mill heads, valve job, & gas check machine & hone block disassembly & assembly of engine, set ring gap, blueprint clearances on rotating assembly
Stage 2 (91-05NSX): 550 wheel / 620 crankshaft horsepower
turn-key assembled package: $7615.00
Engine design for 550 wheel horsepower (620 crankshaft hp). In addition to the Stage 1 build, the Stage 2 build adds Big flange stepped sleeve with radius machined circumference, balanced & blueprinted rotating assembly, and ARP head studs. ScienceofSpeed forged low compression piston with Xylan skirt coating, rings, pins, & locks bush small rod end for floating piston MLS head gasket set (click for detail) polish crankshaft journals full cylinder head & cylinder block internal gaskets, seals, & bearing set new timing belt mill heads, valve job, & gas check disassembly & assembly of engine, set ring gap, blueprint clearances on rotating assembly big flange stepped sleeved cylinder block machined & honed balanced & blueprinted rotating assembly ARP head stud kit
Stage 3 (91-05NSX): 600+ wheel / 680+ crankshaft horsepower
turn-key assembled package: $14,315.00
The stage 3 package is intended for high horsepower race use. The package is designed for 600+ wheel horsepower (680+ crankshaft horsepower). Building on the Stage 2 build, the Stage 3 adds billet chromoly steel connecting rods, full replacement valve train including 36mm SS intake valve set and Inconel 30mm exhaust valve set, and exhaustive head porting. ScienceofSpeed forged low compression piston with Xylan skirt coating, rings, pins, & locks bush small rod end for floating piston MLS head gasket set (click for detail) polish crankshaft journals full cylinder head & cylinder block internal gaskets, seals, & bearing set new timing belt mill heads, valve job, & gas check disassembly & assembly of engine, set ring gap, blueprint clearances on rotating assembly big flange stepped sleeved cylinder block machined & honed balanced & blueprinted rotating assembly ARP head stud kit sized billet chromoly steel connecting rods ScienceofSpeed 36mm SS intake valve set ScienceofSpeed 30mm Inconel exhaust valve set cylinder head port work
These parts should be considered with any of these builds:
new factory water pump if it is time for it to be replaced Locking Timing Belt Tensioner - highly recommended for higher horsepower applications Lost Motion Assembly kit - we recommend replacement at 80k+ miles or for any NSX with aftermarket camshafts - will not wear like factory LMAs valve springs & titanium retainers - recommended for track or higher horsepower applications where rapid acceleration / wheel slip may cause over reving or hitting rev limiter often billet oil pump gear - replaces factory sintered metal gear with billet steel gear - recommended for track or higher horsepower applications where rapid acceleration / wheel slip may cause over reving or hitting rev limiter often forced induction camshafts - allows valve timing and lift to be optimized for forced induction use. Typical gains are more than 8-12% over an engine prepared with factory camshafts