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| Aaen V-4 Two Stroke Racing Engine |
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| Weight | Width | Length | Height |
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| 95 Lbs. |
18" |
16" |
14" |
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| 44 kg. |
457 mm |
406 mm |
355 mm |
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| Aaen V-4 Two Stroke Racing Engine |
|---|
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| Engine Config. | Bore & Stroke | Displacement | HP @ RPM |
|---|
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| V-4 Drag | 65 X 58.5 | 800cc | 215 @ 10,000 |
| V-4 Drag | 74 X 58.5 | 1025cc | 275 @ 10,000 |
| V-4 Road Racing | 67.5 X 58.5 | 850cc | 200 @ 9250 |
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V-4 Racing Engine
The unique V-4 engine design combines light weight with the strength to take the punishment
of the most demanding conditions. The durability of the design has been proven in SCCA road racing
where the V-4 engine has raced problem free for several seasons in our D-Sport race car.
1000 cc engines are presently also used in snowmobile ice drag racing and ATV sand drag racing.
The compact low inertia crank fires every 90° and allows us to rev the engine in excess of
12,000 RPM without running into any critical torsional vibrations. The 1000 cc and 800 cc drag
racing motors have been raced for 7 seasons without any crank or clutch failures.
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10 Port Cylinder Design
The 10 port cylinders have been carefully developed to deliver maximum cylinder filling efficiency.
The cylinder filling is taken care of by 2 piston controlled intake ports, five transfer passages and
triple exhaust ports. The back transfer port is a unique design that runs inside the intake port
divider, giving it the direction it needs for efficient scavenging, and at the same time allowing
for maximum intake flow area. A special forged piston with a wide intake skirt insures that the
intake port is large enough for the highest engine speeds.
Cylinder cooling includes a water jacket around the exhaust port. Sealing between the cylinder and
head is taken care of by double O-rings.
The V-4 engine breaths through a special 4 barrel manifold with 52 mm intake diameters and electronic
fuel injection.
The V-4 racing engines are designed specifically for racing.
We will only sell these engines to qualified Race Teams with solid budgets large enough to support
extensive development necessary for top level racing, for more information on the V-4 Engine,
please refer to the SAE papers #983071 and #983080 presented at the 1998 Motorsports Conference in Detroit.
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| CLUTCH TUNING HANDBOOK |
CARB TUNING HANDBOOK |
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Our popular Clutch Tuning Handbook has been revised for the ninth time, bringing you the latest in
clutching technology. Special chapters on clutch theory, testing and flyweight machining. If you want
to know how your clutch works, this book will save you valuable time and money. New updated sections
include Comet, Yamaha, Ski Doo, Polaris and Arctic Cat
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Our updated Carb Tuning Handbook covers the basics in carb tuning, testing and racing. Mikuni Roundslide
carbs, Flatslide carbs, and the new TMX are discussed in detail. Get the most out of your engine.
Learn how to tune your carbs by using the correct parts and testing procedures. New chapter on
four-stroke CV carbs.
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| Clutch Handbook |
BVS16003 |
$30.00 |
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| Carb Handbook |
BVS16002 |
$30.00 |
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