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Suzuki RG500 and RG racers

 
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NarendZORCE
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PostPosted: Thu Dec 27, 2007 2:32 am    Post subject: Suzuki RG500 and RG racers Reply with quote



History of the RG Racer

1. 1974 RG500
The basic configuration-water cooled, 2-cycle, square four rotary disk valve-
remains the same today. The auspicious start of the machine made to be
remembered.

2. 1976 RG500
Suzuki's first world champion in 500cc Grand prix competition, only three years
after it's debut. The thoroughness of the RG500 design overwhelmed its
competitors.

3. 1978-RGA500
Even with the basic layout unchanged, the RGA500 was completely rebuilt. The
rear two cylinders of the engine were elevated over its predecessor model,
making the engine size even more compact.

4. 1980-RGB500
Equipped with the Hydraulic Anti-dive fork and full floating suspension system,
the functional operation of the RGB500 was further enhanced, greatly increasing
rider comfort and control over the machine.

5. 1981-RG Gamma
Representing a second reconstruction of the original model, the RG Gamma is
considerably more compact than its predecessor. Revolutionary 16-inch front
wheel disproved the critics and amazed the industry.

6. 1982-RG Gamma
New framework of square aluminium tubing reduces weight, improves riding
stability; thus this years model is even more refined, and ranks as the favourite
to capture Suzuki's 7th consecutive world championship.
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NarendZORCE
Zorce Editor-in-Chief


Joined: 04 Apr 2005
Posts: 3137
Location: In Zorce, usually after the contents page

PostPosted: Thu Dec 27, 2007 2:36 am    Post subject: Reply with quote

SUZUKI RG500 GAMMA
SPECIFICATIONS


PERFORMANCE
STANDING START 1/4 MILE 11.37 SECONDS @120.08 MPH
ACCELERATION 0-60 MPH 3.04 SECONDS
45-70 MPH, TOP GEARS (4) 7.44 SECONDS, 591 FT
(5) 9.04 SECONDS, 730 FT
(6) 12.64 SECONDS, 103 FT.
BRAKING, 60-0 MPH 111 FT
HORSEPOWER @60 MPH, TOP GEAR 9. 2 HP RIDER UP, 8.1 HP RIDER DOWN
ENGINE RPM @60 MPH 4319
AVERAGE FUEL CONSUMPTION RATE 34.4 MPG (14.6 KM/L)
CRUISING RANGE (MAIN/RESERVE) 155/45 MILES (249/72 KM)
LOAD CAPACITY (GVWR LESS CURB WEIGHT) 336 LBS (166 KG)
MAXIMUM ENGINE SPEED IN GEARS @ REDLINE (1) 50 (2) 76 (3) 97 (4) 114 (5) 127 (6) 139

ENGINE
TYPE TWO STROKE, ROTARY VALVE INDUCTED SQUARE FOUR WITH EXHAUST PORT VALVES, LIQUID COOLED
BORE AND STROKE 56.0 X 50.6 MM (2.20 X 1.99 IN.)
PISTON DISPLACEMENT 498 CC (30.4 CU. IN.)
COMPRESSION RATIO 7.0-1
CARBURETION (4) MIKUNI 28,, FLATSLIDES
EXHAUST SYSTEM FOUR INTO FOUR WITH EXPANSION CHAMBERS
IGNITION BATTERY POWERED, INDUCTIVE, MAGNETICALLY TRIGGERED
AIR FILTRATION OILED FOAM ELEMENT
OIL CAPACITY 0.7 QUARTS (0.7 L)
BHP@RPM 71.62@9500
TORQUE@RPM 40.46@9000

TRANSMISSION
TYPE SIX SPEED, CONSTANT MESH WET CLUTCH
PRIMARY DRIVE STRAIGHT CUT AND HELICAL GEARS 58/26, 2.23
FINAL DRIVE #530 CHAIN; 16/40 SPROCKETS, 2.50:1
GEAR RATIOS (TRANSMISSION) (1) 29/11, 2.64
(2) 28/16, 1.75
(3) 29.21, 1.38
(4) 27/23, 1.17
(5) 23/22, 1.05
(6) 22/23, .96
GEAR RATIOS (OVERALL) (1) 14.72
(2) 9.76
(3) 7.69
(4) 6.52
(5) 5.85
(6) 5.35

CHASSIS
DOUBLE DOWNTUBE, FULL CRADLE, BOX SECTION ALUMINUM PERIMETRE FRAME; BOX SECTION ALUMINUM SWINGARM
SUSPENSION, FRONT CENTRE AXLE, AIR ADJUSTABLE FORK WITH 38MM TUBES, ADJUSTABLE SPRING PRELOAD AND ANTI DIVE VALVING
SUSPENSION, REAR (1) SHOCK ABSORBER, ADJUSTABLE FOR SPRING PRELOAD
WHEELBASE 56.1 INCHES (1425MM)
RAKE 25.2 DEGREES
BRAKE, FRONT HYDRAULIC, SINGLE DISC WITH DUAL PISTON CALIPER
BRAKE, REAR HYDRAULIC, SINGLE DISC WITH DUAL PISTON CALIPER
WHEEL, FRONT CAST, 2.50 X 16
WHEEL, REAR CAST, 2.75 X 17
TIRE, FRONT 110/90 V16 MICHELIN A48
TIRE, REAR 120/90 V17 MICHELIN M48
SEAT HEIGHT 31.3 IN. (794MM)
GROUND CLEARANCE 5.8 IN. (146MM)
FUEL CAPACITY (MAIN RESERVE) 4.5/1.3 GALLONS
CURB WEIGHT (FULL TANK) 406.0 POUNDS (184.2 KG)
TEST WEIGHT 546.0 POUNDS (247 KG)

ELECTRICAL
POWER SOURCE THREE PHASE AC GENERATOR
CHARGE CONTROL SOLID STATE VOLTAGE REGULATOR
HEADLIGHT BEAMS (HIGH/LOW) 60/55 WATTS
TAIL/STOPLIGHTS 8/23 WATTS
BATTERY 12 VOLT 10AH

INSTRUMENTS
INCLUDES SPEEDOMETER, ODOMETER, TRIPOMETER, TACHOMETER WITH 13,000 RPM REDLINE
WATER TEMPERATURE GAUGE; WARNING LIGHTS FOR LOW OIL LEVEL, SIDESTAND DOWN
INDICATORS FOR HIGH BEAM, TURN SIGNALS, NEUTRAL


http://www.rg500gamma.com
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NarendZORCE
Zorce Editor-in-Chief


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Location: In Zorce, usually after the contents page

PostPosted: Thu Dec 27, 2007 2:40 am    Post subject: Reply with quote



The Suzuki RG500 Gamma Is Irresistible!

Suzuki RG500 Gamma
(Article from Cycle Magazine, December, 1985)

Irresistible. The Suzuki RG500 Gamma is irresistible! Standard equipment should include the Riders Rites for Absolution for acts soon to follow. The rider herein cannot be held responsible for acts committed as an accessory to the Suzuki Gamma!

Raw numbers first indicate the Suzuki Gamma's spellbinding qualities. With its reservoirs for gas, oil, coolant and adrenaline all topped off, the RG weighs 406 pounds. Given its 95 rear wheel horsepower from 30.5 cubic inches, the 500cc Suzuki Gamma has a horsepower-to-weight ratio in league with the strongest one-litre Superbikes of not only its day, but the Superbikes of today! Clean up the Gamma's jetting, and would likely be into and through V-Max territory quicker than you can say "still too rich".

Lightness sharpens the edge of the Suzuki Gamma's horsepower. V-Max power is a bludgeon with a velvet cover that wallops you forward with unending force. RG500 Gamma power is different; it has the quality of an arrow shot from God's own crossbow - instant and direct.

Run the Suzuki RG past 7000 RPM and the space ahead collapses around your helmet; here does something more than become there; here is there! Everything the RG500 Gamma does, it does quickly. The Gamma's geometry tucks the front end back more severely than any production street motorcycle in our collective experience. The head angle is 25 degrees, 10 minutes, tail a steadying 4.4 inches. the squat front end rolls on a 16-inch wheel, and the wheelbase measures 56 inches. So faithful is the Gamma to the rider's body language that, should he roll his eyes upward, he thinks the Suzuki RG500 would lift off and fly. Maybe the only thing the Gamma doesn't do is respond directly to brain waves

Park the RG500 after that first brief ride - which is nothing less than an invitation to criminal activity -and you'll marvel at how close conceptually this street-going Suzuki is to a real RG racer. Suzuki RG hallmarks abound: an aluminum alloy (aluminum, magnesium, zinc) frame and a two-stroke, square four engine, with upstairs/downstairs banks and basement gearbox, rotary-valve induction and power-valve-and-chamber exhausts. The street Gamma shares almost every conceivable piece of sports-spec hardware with a half-dozen or so supreme road-blasters inside and outside the Suzuki range. Still, the Suzuki RG500 Gamma is a racer-replica in concept only; to understand that all you need to do is look at a pure racing RG500 Suzuki, which sized like a 250, makes 100-130 horsepower, and has a power-to-weight ratio of about two to one.

Despite the engineering department's skillful and resourceful massaging, the Suzuki Gamma's output curve still resembles a spike. Imagine a motorcycle that whistles along at 6500 rpm making 37.5 horsepower, and then in a single shriek doubles its output and more, reaching almost 70 horsepower at 9000 rpm. That's 37 horsepower concentrated in a single snap across 2500 rpm. And frankly folks, we wouldn't have the Suzuki RG500 Gamma any other way!
_________________
Drags, Circuit, Solodex, Rally, Karting, the Shows, the Girls, the Car you drive...
ZORCERs done know... the speed lifestyle magazine in the Islands, ZORCE
Click to hear it >> http://www.zorce.com/fortheforums/Zorce15NEW.mp3
Download & SEE iT! >> http://www.zorce.com/fortheforums/Zorce-15.mp4
...........................................................

Oh Yeah! Feel the Rush, it's like... WOW!
May the (Mass x Acceleration)-F+Z be with you...
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Red Dawg
Zorce Director at large


Joined: 07 Apr 2005
Posts: 412
Location: Tazmania

PostPosted: Thu Dec 27, 2007 6:29 pm    Post subject: Re: Suzuki RG500 and RG racers Reply with quote

NarendZORCE wrote:
1. 1974 RG500
The basic configuration of the - water cooled, 2-cycle, square four, rotary disk valve engine remains the same today.
The auspicious start of the machine made to be remembered.


For all of you who were wondering what exactly is a square four engine.
the engine has four cylinders arranged in pairs, but it is not a V4. unlike a V4, the Square four's cylinders are paralell, the engine also has two separate crankshafts.
This design allows the engine to be lighter (although I cant see how) and much narrower than a straight four or a V-four.

Below is an image of the Suzuki RG 500 Gamma motor



Remember this was back in 1974

The fuel is supplied by four carburettors placed on the side of the engine (two per side).

Here is another image of the engine



Here we can see the two crankshafts, the gearbox is behind and below the rear cylinders and is driven by a jackshaft.
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