PRODUCT DESCRIPTION
Fits: Universal, Gasoline, Natural
Maximum Horsepower with Gas:650
Injection Style:Throttle body
Timing Control Compatible:Yes
Power Adder Compatible:No
ECM Included:Yes
Self Tuning:Yes
User Tunable:Yes
Fuel Pump Included:No
EGR:No
Transmission Controller Included:No
Metering Style:Speed density
Intake Manifold Included:No
Multi-Port Fuel Rails Included:No
Throttle Body Included:Yes
Throttle Body Mounting Flange:4-barrel square bore
Venturi Quantity:4
Throttle Body Material:Aluminum
Throttle Body Finish:Black
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
Distributor Included:No
MAP Sensor Included:Yes
IAT Sensor Included:Yes
TPS Sensor Included:Yes
IAC Motor Included:Yes
Quantity:Sold as a kit.
Notes:Kit does not include the fuel line, fuel pump, and filter.
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
