Product Description

The StraightGate40 from Turbosmart is the smallest butterfly-style external wastegate for tight engine bay confines and fitment. The StraightGate40 is a zero-offset butterfly-style wastegate that allows enormous flow and almost linear control with unparalleled boost control throughout the entire operating range.

Turbosmart’s eSG40 Electronic StraightGate is a Patent Pending and based on the success of the Multiple Award Winning eSG50 Electronically Actuated Butterfly Style External Wastegate. No reference hoses, no springs and no diaphragms mean full electronic control via a servo motor and Turbosmart’s zero-back drive gearbox, which results in lower current demands and operation stability against huge drive pressures. The Electronic StraightGate40 includes onboard sensors covering actuator temperature as well as valve position in both analog and digital. The Electronic actuation results in the widest possible tuning window from zero boost (if manifold priority allows) to all available boosts.

The Turbosmart StraightGate40 has been designed from the ground up and validated in-house to create a new level of control and flow, never seen in any wastegate before it. The zero-offset butterfly valve is subjected to exhaust drive pressure equally on both halves of the valve, which pivots centrally, resulting in a self-balanced valve against any drive pressure. This self-balancing means less work is required to actuate against even the highest of drive pressures, and a wider tuning window is possible, no matter how the valve is actuated. The increased flow is achieved through the efficiency of a straight-through valve versus a traditional poppet-style valve where the exhaust gas must be turned 90 degrees by the valve.

Features
40mm (1.57) Butterfly Style Zero-Offset Valve
217.4 CFM / 6.16m3 per minute flow
Stainless Steel (630) Butterfly and shaft
Stainless Steel (347) Main Body
Stainless Steel (Heat Treated 431) V-Band Clamps
360 Degree Mounting options on V-Band
Clock-able Actuator Position (3 x 120 Deg Options)
Full Electronic Actuation (Dual H-Bridge Input)
Onboard (0-5v) Analog Actuator Temperature Sensor
Onboard (0-5v) Analog Valve Position Sensor
Onboard (PWM) Digital Valve Position Sensor
7 Wire Unterminated Flying Lead Loom
Liquid Cooling for Actuator Stability

What's in the box? Supplied with:

Electronic StraightGate Unit
Un-Terminated Flying Lead
StraightGate Inlet and Outlet V-Bands
StraightGate Inlet and Outlet Weld Flanges
Turbosmart Decal

WARNING - Proposition 65 Compliance Statement:

It is the responsibility of Turbosmart to warn its customers and employees that some products sold on this website contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

Important Emissions Note:

This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use, may be a violation of local, state and federal laws. It is the buyer's responsibility to verify legal use of this product for the intended application and use.