NSX > EAP > ScienceofSpeed Individual Throttle Body System

ITB Induction

ScienceofSpeed Individual Throttle Body System

The ScienceofSpeed Individual Throttle Body system replaces the factory single throttle body and intake manifold with an independent throttle body and runner per cylinder.

This high performance induction system is designed for modified naturally aspirated engines where the factory throttle body and intake manifold is the flow restriction. This system may be adapted for forced induction use with a custom plenum designed by the customer.

Individual throttles allow high speed throttle response and increase in power by reducing pumping loss from a conventional intake system.

The ScienceofSpeed Individual Throttle Body System is the only system designed to function in a mostly factory application utilizing the factory throttle cable pull, factory injector wire clips, provisions for EGR removal, and engine bay clearancing. While other systems were designed for race car applications where the factory engine position is changed, or non-Honda cylinder heads are used, the ScienceofSpeed Individual Throttle Body System bolts to factory cylinder heads and fits into the factory engine bay. Stand-alone engine management is required. 1995-2005 NSX require throttle cable conversion.

A tremendous amount of R&D was placed into designing a reliable linkage design. Through several revisions, we were able to design a linkage design that allows the precision and reliability of a common shaft design while still allowing independent throttle body adjustment.

An innovative feature of the system not found on any other aftermarket individual throttle system is the cold start idle control valve developed by ScienceofSpeed. Using an electronic solenoid valve cold start idle is maintained similar to the factory design.

Another innovative feature of the system is the independent floating bell crank support. This design allows for misalignment of the factory cylinder heads due to geometry changes due to thermal expansion, surfacing the heads, block, or installing head gaskets with different thicknesses. No aftermarket throttle system offers this for the NSX.

The ScienceofSpeed Individual Throttle Body System was designed after 2 years of R&D to manufacture the most advanced and reliable individual throttle body system for the NSX.

The system features:

3-axis CNC designed aluminum intake manifolds with seamless round-oval port-matched transition
throttle body and injector cant designed for maximum airflow & fuel atomization
unique linkage design has the precision and reliability of a common shaft design with individual throttle body adjustment capability
unique independent cylinder bank design compensates for cylinder head geometry from installation, head decking, and thermal expansion allowing a port-match installation for maximum airflow
bell-crank and centralized throttle linkage design maintains factory throttle pull cable
cold start idle valve allows control of air flow during cold idle

System includes:

lightweight aluminum airflow bench tested air horns
lightweight aluminum individual throttle bodies (48mm)
aluminum intake manifolds
linkage system
mounting plate, throttle cable bracket, & bell-crank assembly
fuel rails & bracket assembly
fuel pressure regulator
throttle position sensor
vacuum collector

System does not include air filter box. Fuel injectors available separately based on customer's engine horsepower.

System is not designed for emissions controlled vehicles. For off-road applications only.

specs

fitment:

NSX, all years

gallery

ScienceofSpeed Individual Throttle Body System

[eap-561] $4,450.00