MSD Atomic 2 EFI Throttle Body Systems 2910-2

MSD Atomic 2 EFI throttle body systems feature four 100 lb./hr. fuel injectors that can support up to 650 hp naturally aspirated or 635 hp on forced induction applications. The Atomic 2 ECU is capable of fuel map self-learning and ignition timing control—improving idle stability, drivability, and wide-open throttle horsepower! They're designed to fit on a 4150 intake manifold, with ample clearance for factory air cleaners. These systems provide the performance and drivability benefits that you expect from fuel injection: quick starts, smooth idle, and great throttle response, just to name a few. Combine the fact that the Atomic 2 will support ignition timing through the ECU and you have a win-win combination. Initial timing is handled through a compact hand-held monitor where you simply answer a few car guy questions about your engine—and you're off and running! Atomic 2 systems are available in a raw aluminum or black ceramic finish.

Product features:

* Direct replacement for common 4-barrel carburetors with 4150-style (square bore) flange
* NEW throttle body flows 865 cfm and features 1 3/4 in. throttle plates
* NEW booster design offers superior fuel atomization
* NEW ECU is 100 percent incorporated into the throttle body; no separate power module to mount
* NEW and improved calibration wizard; answer a few simple questions about your engine and it creates the base map, then starts tuning on its own! No laptop required
* NEW high-resolution, full color, 3.5 in. touch screen for initial set-up, tuning, and gauge displays
* NEW optional laptop tuneability; ideal for fine-tuning and unique engine combinations, or for boosted applications up to 21.5 psi
* IMPROVED built-in nitrous control supports wet/dry nitrous
* Integrated ignition timing control; includes an ignition coil driver, no ignition box required
* Only four wiring connections required (Battery +, Battery -, Switched Ignition, and RPM)
* Roller bearing throttle shafts for smooth throttle feel and less pedal effort
* External fuel pressure regulator required, set to a base pressure of 58.5 psi, such as Holley 12-882 (only on PN 2910-2 and 2910-2BK)
* Fuel pump control built-in with a 40 amp relay
* Fan control eliminates the need for external fan controller; simply wire a relay to the fan and tell the Atomic 2 ECU the desired fan activation temperature
* NEW OEM-style TPS/IAC and fuel pressure sensor, for years of dependable service and easy replacement
* The included Genuine Bosch LSU 4.9 wideband oxygen sensor provides real-time Fuel Map Learn
* NEW: Includes clamp-on oxygen sensor kit for simplified, leak free installation. Stainless steel T-bolt clamps and a stainless steel (weldable) oxygen sensor bung included
* NEW: Compatible with MSD, Holley Hyperspark, and OEM ignition systems
* NEW: Compatible with Holley EFI digital dashes, gauges, and fuel system accessories

Brand: MSD Ignition
Manufacturer's Part Number: 2910-2
Part Type: Fuel Injection Systems
Product Line: MSD Atomic 2 EFI Throttle Body Systems
HP Direct Part Number: MSD-2910-2
UPC: 090127110034
Fuel Injection Style: Throttle body
Fuel Injection System Type: Single 4-Barrel Throttle Body (4150 Flange)
Maximum Horsepower with Gas: 650
Timing Control Compatible: Yes
ECM Included: Yes
Self Tuning: Yes
User Tunable: Yes
Fuel System Included: None
Ignition System Included: None
Power Distribution Included: None
User Interface Included: 3.5 in. display
EGR: No
Transmission Controller Included: No
Metering Style: Speed density
Multi-Port Fuel Rails Included: No
Throttle Body Included: Yes
Throttle Body Mounting Flange: 4-barrel square bore
Venturi Quantity: 4
Throttle Body Material: Cast aluminum
Throttle Body Color: Natural
Injectors Included: Yes
Injector Size (lbs/hr): 100 lbs./hr.
Calibration Module Included: Yes
Wiring Harness Included: Yes
Oxygen Sensor Included: Yes
Fuel Pressure Regulator Included: No
MAP Sensor Included: Yes
IAT Sensor Included: Yes
TPS Sensor Included: Yes
IAC Motor Included: Yes
Quantity: Sold as a kit.
Notes: Custom tuning is required for engines running boost or nitrous. Maximum recommended horsepower for boost is 635.