Super Damper^® Harmonic Dampers

Damper Accessories Download Installation Instructions Mitsubishi 4G63 DSM Super Dampers ATI's Super Damper for Eclipse DSM 4G63T, 4G64T engines Fits 1st Gen Eclipse, Galant, Eagle Talon, and Plymouth Laser High horsepower street & race use Dampens torsional crankshaft vibrations at all RPM levels Protects against engine harmonics 6.325” diameter, 12% overdriven Direct replacement for the stock OEM damper Custom timing gear hub replaces the stock timing gear Stock timing cover must be trimmed for hub clearance Laser-etched timing marks at TDC, 5°, 10°, 15°, 20°, 25°, 30° SFI 18.1 Certified for competition use Specs Shell Material: 6.325" Aluminum, two 4-rib drives, 12% Overdriven Hub Material: Steel with Timing Gear drive, #916025, 1.263" Bore Inertia Weight: 2.4 lbs, 3 ring

Part # Diameter Weight Price Purchase 918251 6.325" 6.30 lbs $430.97

Damper Accessories Download Installation Instructions Mitsubishi 4G63 Evo Super Dampers ATI's Super Damper for Mitsubishi Evo VIII and IX 4G63 MIVEC engines High horsepower street & race use Dampens torsional crankshaft vibrations at all RPM levels Protects against engine harmonics Direct replacement for the stock OEM damper 6.325” diameter, 12% overdriven For correct belt length, use Carquest/Gates K060715 Custom timing gear hub replaces the stock timing gear Laser-etched timing marks SFI 18.1 Certified for competition use Specs Shell Material: 6.325" Aluminum, 6-rib drive, 12% Overdriven Hub Material: Steel with Timing Gear drive, #916025, 1.263" Bore Inertia Weight: 2.4 lbs, 3 ring

Part # Diameter Weight Price Purchase 918250 6.325" 6.30 lbs $430.52

Street     Race Damper Accessories Download Installation Instructions Mitsubishi 4B11T Evo X Super Dampers ATI's Super Damper for Mitsubishi Evo X 4B11T MIVEC engines High horsepower street & race versions Dampens torsional crankshaft vibrations at all RPM levels Protects against engine harmonics Street Version: Direct replacement for the stock OEM damper Street Version: 5.67" Diameter 3% Overdriven belt drive Race Version: 7.07" Diameter, no belt drives Laser-etched timing marks SFI 18.1 Certified for competition use Specs Shell Material: Aluminum Hub Material: Steel 1.0988" Bore Inertia Weight: 2.24 lbs

Application Engine Part # Diameter Weight Price Purchase Street Version 4B11T 918253 5.67" 6.00 lbs $383.23 Race Version 4B11T 918254 7.07" 6.15 lbs $388.89

		ALUMINUM SHELL			CRANKSHAFT HUB PART NUMBERS
		7.074"	6.325"	5.67"
		2 RING	3 RING		STEEL	STEEL WITH INNER SHELL
TOTAL WEIGHT INERTIA WEIGHT		3.75 lbs 2.20 lbs	3.90 lbs 2.40 lbs	3.60 lbs 2.20 lbs
INTERNAL BALANCE DAMPER ASSEMBLY PART NUMBERS
Eclipse DSM - 4G63 & 4G64   [1, 2]			918251		916025	--
Evo 8 & 9 - 4G63   [2, 3]			918250		916025	--
Evo 10 - 4B11T	3% UD			918253	--	916123
	RACE VERSION	918254			--	--

[1] Timing marks at TDC, 5°, 10°, 15°, 20°, 25°, 30° with clockwise rotation
[2] Damper hub and lower timing gear is made into 1 piece for strength. Also requires trimming of the lower timing cover for clearance
[3] 12% OD from OEM. For correct belt length, use Carquest/Gates K060715