Arrow Engine Company

VRG 220 — Specifications Summary
Model, spark ignited	Peak intermittent torque @ RPM		Brake horsepower at speeds indicated (S.A.E.)
	Ft.Lb.	N-M	900	1000	1200	1400	1600	1800	2000	2200
VRG220 Natural Gas	148 @ 1600	201 @ 1600	19 17	24 22	31 28	39 35	45 41	50 45	55 50	59 53
VRG220, HD5 Propane	191 @ 1400	259 @ 1400	29 26	33 30	43 39	51 46	56 51	61 55	66 60	71 64
VRG220 Gasoline	179 @ 1600	239 @ 1600	25 21	30 25	39 34	48 41	54 49	61 55	68 62	73 67

VRG330, VRG330TA — Specifications Summary
Model, spark ignited	Peak intermittent torque @ RPM		Brake horsepower at speeds indicated (S.A.E.)
	Ft.Lb.	N-M	900	1000	1200	1400	1600	1800	2000	2200
VRG330 Natural Gas	220 @ 1600	298 @ 1600	29 26	36 33	47 42	58 52	67 60	75 68	82 74	89 80
VRG330, HD5 Propane	285 @ 1400	360 @ 1400	43 39	50 45	64 58	76 69	85 75	95 85	105 95	110 100
VRG330, Gasoline	268 @ 1400	360 @ 1400	35 30	44 37	60 50	75 65	85 75	95 85	105 95	110 100
				50 47	68 63	89 82	97 92	106 100	110*	118*

Outstanding Features

• Vertical in-line adjustable fan bracket
• 4 groove crankshaft pulley; 2 groove fan; 1 groove water pump; 4th groove auxiliary
• Flywheel – SAE no. 3 w/ring gear and SAE no. 3 housing
• Lifting eyes – front and rear
• Full Pressure lube oil system with full flow oil filter
• Exhaust manifold with top or rear outlets
• 10% regulated speed by mechanical governor – other governor options available
• Heavy-duty, deep skirted crankcases
• Forged steel, dynamically balanced, counterweighted crankshafts with hardened journals
• Forged steel connecting rods
• Seven main bearings
• Replaceable precision main and rod bearings
• Overhead valve cylinder heads with replaceable

Other Outstanding Features

Consult factory for your requirements
Brake horsepower deductions for altitude and temperature

Altitude:

NA engines – deduct 3% for each 1000′ (305m) above 1500′ (457m) (continuous duty), or above 500′ (152m) (intermittent duty).

Temperature:

Deduct 1% for every 10°F. (6°C.) above 100°F (38°C.) (continuous duty), or above 85°F. (intermittent duty).

VRG330TA:

Deduct 1% per 10°F. (5.5°C) above 100°F. (38°C) (continuous duty), 1% per 10°F. (5.5°C) above 85°F. (29°C). (intermittent duty).

Intermittent Rating (I):

The highest load and speed that can be applied under specific conditions of varying load and/or speed.

Continuous Rating (C):

The load and speed that can be applied without interruption except for normal maintenance.

All ratings corrected to 500′ (152 m) altitude, 29.38″ (746 mm) Hg. and temperature of 85° F. (29° C.). Natural gas ratings are based on use of 900 BTU (33.5 J/cm3) LHV gas. HD-5 propane ratings are based on use of 2335 BTU (87 J/cm3) LHV fuel.

Arrow “Engineered” Improvements

Improvements to the VRG220/VRG330 engines after Arrow acquired the line in November 1993 include:

• 3 O-ring liner
• Tapered camshaft lobes
• Crankcase with modified liner sealing area and modified coolant passage
• More rigid, heavy-duty rear crank seal retainer
• Stronger magneto drive gear
• Materials and processes in cylinder head casting
• Governor, air cleaner, and instrumentation options
• High efficiency, heavy-duty radiator
• Self de-aerating cooling system
• GenSets up to 65 Kw
• 10:1 compression ratio configuration
• TA (Turbocharged/Aftercooled) version
• High-temp fuse plugs to monitor coolant status
• Newly designed valve guides and guide seals

C Series 4-Cycle Engines

Engine Specifications Chart

Advantages

Continuous Duty

Arrow engines are designed for continuous duty 24 hours a day, day after day. Dependable performance when you need it. Arrow’s heavy duty design features a heavy flywheel, a governor speed control, and a pressurized full flow lubrication system to assure continuous operation.

Oilfield Tough

Over 75,000 Arrow engines are powering pumping jacks in oilfields from the frozen tundra’s of Canada, to the mountains of South America; from the deserts of the Middle East, to the jungles of Indonesia. Many of the original engines built in the 1940’s are still running today. Tough means they work harder, longer.

Gas Fueled

Arrow engines run on a variety of low BTU gases; natural gas, wellhead gas, methane, butane or propane. Whether in remote jungles or in civilization, locally available gas fuel frequently costs much less than bringing in liquid fuel or electric power. The single cylinder Arrow engines can also be equipped with a fuel lift pump and will operate on gasoline.

Economical Operation

Studies performed in the U.S. have shown that operating costs for Arrow engines can be as low as half the cost for equivalent HP electric motors. Since every area is different, you owe it to yourself to compare the costs in your area.

Easy Maintenance

Arrow engines are designed for easy, quick field maintenance. The oil level can be checked and adjusted while the engine is running. Easy access enables replacing piston rings and wet cylinder sleeves* in the field; and Arrow parts are interchangeable from the first model made. Ignition-Starfire Solid State Ignition Systems are standard for Single Cylinder engines and optional on Twin Cylinder engines. Also available as options are high tension or solid state magnetos, or Altronic ignition systems.

Arrow “Engineered” Improvements

Improvements to the Heavy-Duty C-Series Engines since May 1977 (most all are retrofitable to earlier models using current kits):

• Heavy steel fabricated sub-base
• Full flow oil system with spin-on filter
• A mounting pin for Arrow 990
• Portable starter added to sub-base
• Bronze crankshaft gears for C-46 through C-106
• Arrow oil filler added to engine (ASP-1)
• O-ring modified rocker shaft plugs
• Reliable stainless steel braided oil lines
• Ball rod ends standard on all Arrow engine models
• Stainless steel water filler added as standard (ASP-3A)
• Vibration-free cross braced radiator shells
• Common muffler made standard on C-Series engines
• Lifting eyes added to facilitate engine handling
• Newly increased engine horsepower with the change to Impco 100 and 200 carburetors
• All Arrow Engines are either electric 12-volt ring gear starting or blow down air-gas starting systems
• Added instrument panel to house starter switch, cannon receptacle, oil pressure gauge and shut down
• Cylinder heads modified to accept Impco carburetors without using cross flange adapter
• Improved ring gear starter mounting on new flywheel (eliminated separate ring gear carrier)
• Added QD hub to flywheel for safety in de-mounting
• Latest trochoidal oil pumps standard
• Oil pressure bypass valve included in oil pump assembly
• Optional renewable oil filter available
• A wiring harness is used to combat weather hazards
• Optional cover for Arrow electric starter motor available (prevents water from damaging starter motor)
• Starfire ignition is standard (C.D.I. for long life) and operates in the rain
• Redesigned breather system to improve crankcase ventilation and reduce emissions of crankcase vapors into the atmosphere (244BC)
• Solderless pressure condensing radiators with steel top tanks, bottom headers and replaceable
• Cores made standard on C-46 through C-106 – optional on C-255

A Series Engines

A-Series Features	A-42	A-54	A-62
12-Volt Starter	X	X	X
12-Volt Alternator	X	X	X
Heavy Flywheel		X
Standard Oil Cooler	X		X
Natural Gas Carburetor	X	X	X
Electronic Governor	X		X
Mechanical Governor		X
CD-1 Ignition System	X	X	X
Enclosure (Doors Optional)	X	X	X
Single-Plate PTO Clutch	X	X	X
Dry-Type, Two-Stage Air Cleaner	X	X	X
Water-Pump-Mounted Sucker Fan	X	X	X
Analog Tachometer with Hour Meter	X	X	X
Oil Pressure Gauge with Low-Oil-Pressure Shutdown	X	X	X
Water Temperature Gauge with High-Water-Temperature Shutdown	X	X	X
Standard Oil Filter Base – Spin-On Full-Flow Filter Included	X	X	X
Main Bearings	5	7	7
Lifting Eyes – Front & Rear	X	X	X
Serrated, Angle-Cut, Forged-Steel Connecting Rods	X	X	X
Heavy-Duty, Deep-Skirted Crankcases	X	X	X
Exhaust Manifold with Top Outlet	X	X	X
Individual Cylinder Heads	X		X
Replaceable Precision Main & Rod Bearings	X	X	X
10% Regulated Speed by Mechanical Governor		X
Overhead Vale Cylinder Heads with Replaceable Guides & Seats	X	X	X
Forged-Steel, Dynamically-Balanced and Counter-Weighted Crankshafts with Hardened Journals	X	X	X
One (1) Year Limited Warranty	X	X	X

A-Series

Our A-Series line of multi-cylinder engines can accommodate a variety of applications, both common and unusual. A-Series engines are available in turbo and cross-flow configured intake and exhaust manifolds. These precision engineered and time-tested engines are as dependable as they are versatile. The RPM runs between 900 and 1,800, with HP from 17.5-109.

Power Units

These engine can also be packaged as power units with everything your needs require. They are perfect for rotational pumping units, hydraulic pumping units, hydraulic skids for PC pumps or for any form of artificial life where power is needed.

 

Power Ratings

Intermittent	Continuous
MODEL	PEAK INTERMITTENT		BRAKE HORSEPOWER AT SPEEDS INDICATED (S.A.E.)
	TORQUE @ RPM		900		1000		1200		1400		1600		1800
Spark Ignited	FT.LB.	N*M
A42 – Natural Gas	148 @ 1600	210 @ 1600	19	17	24	22	31	28	39	35	45	41		45
A54 – Natural Gas	220 @ 1600	298 @ 1600	29	26	36	33	47	42	58	52	67	60	75	68
A54 – HD-5 Propane	285 @ 1400	386 @ 1400	43	39	50	45	64	58	76	69	85	76	92	83
A54CF – Natural Gas	233 @ 1600	317 @ 1600			38	35	50	45	61	55	71	64	80	72
A54TA – Natural Gas	334 @ 1400	454 @ 1400			50	47	68	63	89	82	97	92	106	100
A62 – Natural Gas	269 @ 1400	365 @ 1400	44	40	49	45	61	55	72	65	81	74	88	80