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Testimonial for Amsoil Synthetic Motorcycle 20W-50

Synthetic Motorcycle 20W-50

This is a reprint of a testimonial sent to Amsoil Corporate. – editor

Hello,

Synthetic Motorcycle 20W-50

Synthetic Motorcycle 20W-50

You’ll notice by my signature below that I am an employee of Chevron Global Lubricants. I am a training specialist and field engineer for our North American lubricants division. I originally worked for Amoco at the R&D facility before moving into marketing, and while in that role, Chevron bought our lubricants business right after I moved to Florida.

All in all, I have more than 34 years of experience in fuels and lubricants testing, development and tech service support.

I own three motorcycles that I either drive on the street or race. What I wanted to share with you today is my experience with my drag bike.

It is a Yamaha Roadstar Warrior. Originally built as a power cruiser, but now it is stretched, slammed and built to run on E-85 fuel and nitrous oxide. I have taken this bike from a fun street cruiser to a beast that wants to jump out from under me every time I snap the throttle.

Synthetic Motorcycle 20W-50

The engine is putting out more than three times the horsepower it was originally built with, and with the highly oxygenated fuel, nitrous, and severe use, I have been battling cylinder and piston ring distress for a couple of years. Essentially, whenever I did a teardown, there was evidence of streaking of the Nikasil-lined aluminum cylinder, essentially a scuffing situation that is aggravated by the high cylinder pressures and fuel dilution. Synthetic Motorcycle 20W-50

Since Chevron does not make motorcycle oils, I have had to try many of the “other” different motor oils, all synthetic. To make a long story short, I should have read your white paper on motorcycle oil testing. It would have saved me at least three premature teardowns. Synthetic Motorcycle 20W-50

Synthetic Motorcycle 20W-50

Bottom line — the AMSOIL Synthetic Motorcycle 20W-50 has completely solved my problems. I have been running it for over a year now, and compression and leakdown have stayed at the exact level as when the engine was freshly rebuilt. This weekend, I tore down the top end to try a new piston ring combination, and the cylinders had absolutely NO sign of streaking or other wear-related distress. Synthetic Motorcycle 20W-50

Also, all other clearances, including valve lash and valve guide and bearing have stayed the same. This is truly remarkable.

In my training endeavors, I run into a lot of end users who are high performance junkies just like me. I have no problem sharing my experience with the AMSOIL products.

Thank you so much for the great product.

Best Regards,
Sam Vallas
Training Specialist
Chevron Global Lubricants

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Two cycle Engine Applications and Lubrication

Two cycle Engine

Applications and Lubrication Needs

The best two cycle engine oil

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Two cycle engines can be found nearly everywhere these days. They are used in dozens of applications and in a wide variety of designs for everything from work and recreation to power generation. two cycle engines have design differences and operate under conditions that require different oil chemistries than their four-cycle counterparts. In order to recommend a lubricant for a two-cycle engine, one needs to know how this engine operates, why it is used in place of a four-cycle engine and where and in what type of applications it is used.

Two cycle Engine

What is a two cycle engine? How do two cycle engines work?

Two cycle engine

Two cycle engine

The terms “two-cycle” and “two-stroke” are often inter-changed when speaking about two cycle engines. These engines derive their name from the amount of directional changes that the pistons make during each power stroke. Internal combustion engines are used to produce mechanical power from the chemical energy contained in hydrocarbon fuels. The power-producing part of the motor’s operating cycle starts inside the motor’s cylinders with a compression process. Following this compression, the burning of the fuel-air mixture then releases the fuel’s chemical energy and produces high-temperature, high-pressure combustion products. These gases then expand within each cylinder and transfer work to the piston. Thus, as the engine is operated continuously, mechanical power is produced. Each upward or downward movement of the piston is called a stroke. There are two commonly used internal combustion engine cycles: the two-stroke cycle (Two cycle engine) and the four-stroke cycle.

Two cycle Engine

How are two cycle engines different from four-cycle engines?

Two cycle engine

Two cycle engine

The fundamental difference between two cycle engines and four-cycle engines is in their gas exchange process, or more simply, the removal of the burned gases at the end of each expansion process and the induction of a fresh mixture for the next cycle. The two cycle engine has an expansion, or power stroke, in each cylinder during each revolution of the crankshaft. The exhaust and the charging processes occur simultaneously as the piston moves through its lowest or bottom center position.

In a four-cycle engine, the burned gasses are first displaced by the piston during an upward stroke, and then a fresh charge enters the cylinder during the following downward stroke. This means that four-cycle engines require two complete turns of the crankshaft to make a power stroke, versus the single turn necessary in a two-cycle engine. In other words, two-cycle engines operate on 360 degrees of crankshaft rotation, whereas four-cycle engines operate on 720 degrees of crankshaft rotation.

Where are two cycle engines used?

Two-cycle engines are inexpensive to build and operate when compared to four-cycle engines. They are lighter in weight and they can also produce a higher power-to-weight ratio. For these reasons, two-cycle engines are very useful in applications such as chainsaws, Weedeaters, outboards, lawnmowers and motorcycles, to name just a few. Two-cycle engines are also easier to start in cold temperatures. Part of this may be due to their design and the lack of an oil sump. This is a reason why these engines are also commonly used in snowmobiles and snow blowers.

Some advantages and disadvantages of two-cycle engines

Because two-cycle engines can effectively double the number of power strokes per unit time when compared to four-cycle engines, power output is increased. However, it does not increase by a factor of two. The outputs of two-cycle engines range from only 20 to 60 percent above those of equivalent-size four-cycle units. This lower than expected increase is a result of the poorer than ideal charging efficiency, or in other words, incomplete filling of the cylinder volume with fresh fuel and air. There is also a major disadvantage in this power transfer scenario. The higher frequency of combustion events in the two-cycle engine results in higher average heat transfer rates from the hot burned gases to the motor’s combustion chamber walls. Higher temperatures and higher thermal stresses in the cylinder head (especially on the piston crown) result. Traditional two-cycle engines are also not highly efficient because a scavenging effect allows up to 30 percent of the unburned fuel/oil mixture into the exhaust. In addition, a portion of the exhaust gas remains in the combustion chamber during the cycle. These inefficiencies contribute to the power loss when compared to four-cycle engines and explains why two-cycle engines can achieve only up to 60 percent more power.

How are two-cycle engines lubricated?

Two-cycle motors are considered total-loss type lubricating systems. Because the crankcase is part of the intake process, it cannot act as an oil sump as is found on four-cycle engines. Lubricating traditional two-cycle engines is done by mixing the oil with the fuel. The oil is burned upon combustion of the air/fuel mixture. Direct Injection engines are different because the fuel is directly injected into the combustion chamber while the oil is injected directly into the crankcase. This process is efficient because the fuel is injected after the exhaust port closes, and therefore more complete combustion of fuel occurs and more power is developed. Direct injection engines have a higher power density than traditional two-cycle engines. Because the oil is directly injected into the crankcase, less oil is necessary and lower oil consumption results (80:1 range). Direct Injection motors have higher combustion temperatures, often up to 120F. They also require more lubricity than traditional two-cycle motors.

 

Amsoil Dominator

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Amsoil DOMINATOR – Synthetic 2-Cycle Racing Oil

 

Amsoil Dominator

Amsoil Dominator

Amsoil DOMINATOR®, an AMSOIL exclusive formulation, lubricates and protects high-performance two-cycle motors, both on and off the track. High-performance motors, particularly those that are modified, operate hotter and at higher RPM than recreational motors, and they need good oil for peak performance. DOMINATOR is engineered for racing. It has the right fi lm strength and clean-burning properties for “on the edge” operation.

FREE Amsoil Catalog – no obligation, sent USPS to your home. Free pen and Amsoil sticker included.

Amsoil Dominator

Super Film Strength

High-performance two-cycle motors have high compression ratios, which significantly increases combustion chamber heat and crankshaft bearing . Hot combustion processes quickly burn off and evaporate light oils and cause rapid piston expansion, decreasing piston-to-cylinder wall clearances. This promotes piston scuffing and possible seizure, and increased pressure on crankshaft bearings promotes metal-to-metal contact, wear and pitting. High heat and pressures require tough oil with better fi lm strength and more lubricity.

Amsoil DOMINATOR, constructed with AMSOIL heavy synthetic oil, handles high heat better
than mineral oils and provides improved fi lm strength and lubricity. DOMINATOR
reduces friction and provides an extra measure of protection against piston scuffing
and crankshaft bearing wear.

Amsoil DominatorAmsoil Dominator

Clean Burning

High combustion processes require the proper additives and oils to control deposits. Amsoil DOMINATOR contains strong, high-temperature detergent additives and highly pure AMSOIL synthetic oil. It helps prevent deposits that cause ring sticking, plug fouling and exhaust port blocking. Amsoil DOMINATOR is an optimized product for severe service.

• Provides excellent fi lm strength for high-heat, high-RPM motors
• Reduces friction for maximum power
• Recommended for use with coated or non-coated racing pistons
• Suitable for use with exhaust power valves
• Recommended for use with high-octane racing gas
• Burns clean; helps prevent ring sticking and plug fouling
• Provides excellent protection at 50:1 pre-mix or in injection systems

Amsoil Dominator

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Eric Buell Racing – 1190 Ready To Race in Ohio

The Checkered Flag

Eric Buell Racing

All Amsoil motorcycle Products on one page

EBR 1190 Ready To Race in Ohio

July 07, 2011

A pipe dream is about to become a reality this weekend in Ohio.  The AMSOIL sponsored Erik Buell Racing (EBR) 1190 RS has been in production for the past several months, with more than 30 bikes already in the hands of customers.  At the AMA Pro Road Racing event held in Lexington, Ohio this weekend, the EBR 1190 will race for the first time.

The new bike will be replace the Buell 1125 that top rider Geoff May has been riding so far this season in the American Superbike class.  The new bike will bring more horsepower, better aerodynamics and smoother handling to the Mid-Ohio Raceway.  For company founder Erik Buell, it’s the next step in Eric Buell Racingrebuilding a brand.

Eric Buell Racing

AMSOIL Racing: Erik, we know you’re excited.  How is Geoff doing?

Erik Buell:  Extremely excited, but cautious. We know we are just getting started racing the EBR 1190RS, but we all know what a huge amount of effort it took to get here. The whole EBR team, including suppliers and sponsors like AMSOIL, has been working so hard to get us to this point that it will be a very rewarding moment to see all their efforts on track at last.

AR: So you guys got approved by the AMA.  Not an easy process, right?

EB: This was a complex process, unlike in the past. We had to prove we had produced a certain number of fully street legal 1190RS models that met all EPA/DOT regulations. No special allowances for modifications, or using legality in some other country as a means to qualify. Also we had to supply a complete set of critical parts, all detailed drawings for the parts with tolerances, as well as parts manuals, owner’s manuals, etc. Everything to make sure they can validate that we are racing the street bike with only allowable modifications, nothing custom just for our team.

AR: The bike has a little more get-up-and-go over the 1125?

EB: The bikes will have a bit more than the 1125RR race bikes had,  but they have not been refined or tweaked yet. Basically stock motors, with a base gasket removed to increase compression, and a race muffler and race ECM. So about 180 RWHP.

AR: Is there anything also about the bike we can add?

EB: The bikes started as stock 1190RS models that the race department received about two weeks ago.  And the 1190RS is completely new from front to rear from the old 1125. The radically different bodywork is the visual cue, but from front axle to rear, it is a new bike. So the team has a lot to learn, but are very excited about the potential.

AR: Good luck this weekend.

EB:  Thank you and many thanks to everyone at AMSOIL for their help in getting this bike on the race track.

Racing fuels Buell’s comeback as maker of sport bikes

AMSOIL Racing

Eric Buell Racing

Eric Buell Racing  Eric Buell Racing  Eric Buell Racing

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