I’m certain you’ll be able to say the same. I use these shortcuts all the time, and once I memorized them, I noticed a significant speed increase in my workflow. You can use them to quickly trim shape layers, solids, adjustment layers-every type of layer. The nice thing about these shortcuts is that they don’t just apply to video layers. Both of these shortcuts will trim the clip to wherever your playhead is positioned. Then use the shortcut Alt + on PC or Option + ] on Mac. Here’s quickest way to cut a clip in After Effects (and my preferred method)-simply use shortcuts along with the playhead.įirst, position the playhead at the exact frame you want to cut. After Effects and other video apps) are no longer available, per: Adobe. This will make your layer snap to the playhead’s position, taking out the tedious work of trying to line it up frame by frame. If you want to trim the clip to the position of your playhead, just hold down shift while you’re dragging the ends of the clip. Then, grab one end of your layer and trim the clip to the exact frame you want it. ![]() Here’s another way to make your cut: Duplicate your layer- Ctrl + D on PC or Command + D on Mac. This is how After Effects cuts clips, since you can’t cut a clip in the middle of the same layer.įaster Ways to Cut a Clip in After Effects Create duplicate layers. Your clip will still play all the way through, uninterrupted, but with independent layers. Click it.Īfter you’ve clicked, you’ll see that your layer is now duplicated and cut into two separate layers. Then, go up to the edit tab, and find Split Layer ( Ctrl+Shift+D). Just highlight your layer, and position your timeline indicator where you want your cut. Once you have your composition set up and one layer loaded into your timeline, it’s super-easy to cut a clip. But, when I tried to save my file in a normal way. So, I wanted to save the project file that I was working on, and to continue working tomorrow on the same project file that I wanted to save the project file to either my desktop or somewhere. How Does After Effects Cut Clips? Go to Edit, then hit Split Layer. First of all, Im using After Effects 2020 with mac (Catalina). While I wouldn’t recommend editing an entire film inside of After Effects, you can quickly streamline your workflow by knowing how to cut a clip. This creates an extra step when cutting clips, unless you use shortcuts as a workaround. After all, After Effects doesn’t have a traditional “cut” tool (like you’d see in Premiere Pro) for splitting layers. Trying to cut a clip in After Effects for the first time can feel a bit odd. It’s a quick, easy way to add a new skill and streamline your workflow. ![]() This would be compatible with macOS.Learn how to cut a clip in After Effects. This is complete offline installer and standalone setup for Adobe CC Collection 2021. System Requirements For Adobe CC Collection 2021īefore you start Adobe CC Collection 2021 free download, make sure your mac meets minimum system requirements.Ĭlick on below button to start Adobe CC Collection 2021 Free Download. ![]() Setup Type: Offline Installer / Full Standalone SetupĬompatibility Architecture: 32 Bit (x86) / 64 Bit (圆4) The program and all files are checked and installed manually before uploading. Setup File Name: Adobe CC Collection 2021.zip Take a look at the After Effects hardware requirements below to find the answers to these questions. Adobe After Effects 2021 Free Download macOS Latest Version for macOS. Software Full Name: Adobe CC Collection 2021 Amazing after effects templates with professional designs.Īdobe CC Collection 2021 Technical Setup Details ![]() Bt u t u hoc vi mt trong các cài t trc hình nh ng có sn ngay trong ng dng.
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![]() There are no studies that have looked at how gelatin might change acne directly. The researchers found that when a woman’s glycine levels were higher, she had better-regulated hormones and was able to eliminate excess estrogen from the body. In 1997, researchers from France examined the benefits of glycine on hormones. Gelatin creates a mucous barrier in the intestines that resists bacterial infections and other conditions that cause intestinal problems (today usually identified as Crohn’s disease, leaky gut, peptic ulcers, IBS, heartburn, and celiac disease). In 1908, researchers from the University of Bonn studied the benefits of gelatin in the intestines. The researchers concluded that the inclusion of gelatin is highly beneficial for the skin and may be able to counteract the damaging effects of UV rays on the skin. Mice that age gelatin had an increase in collagen levels by 17 percent when exposed to UV light. Mice who didn’t eat gelatin lost 53 percent of the collagen in their skin when exposed to UV light. Researchers from the Tokyo University of Agriculture and Technology examined the possible anti-aging effects of gelatin in mice. At 7 weeks, 74 percent of women taking 5 g of gelatin saw skin improvement and 81 percent of women taking 10 g had clearer, firmer skin. 62 percent of women taking 10 g of gelatin daily reported improved skin. At the three week mark, 41 percent of women taking 5 g of gelatin reported their skin had improved. The women consumed 5 or 10 g of gelatin for 7 weeks. In 2009, researchers from Shokuhin-To-Kaihatsu examined the effects of a gelatin supplement on woman over 40. Take a look at some of these studies below. Numerous studies have been conducted on the benefits of gelatin for the skin. Improved digestion and elimination of heartburn.Within 6 weeks, Lexa noticed numerous benefits from consuming gelatin, including: She initially started to supplement with gelatin as a way to boost muscle without using dairy products (dairy gave her acne outbreaks and inflammation problems). Lexa resisted taking gelatin at first, but finally decided to add it to her diet. She had trouble with sleep disorders, weight gain, energy loss, and allergies in the past as a result of a faulty thyroid. In 2013, Lexa started taking gelatin at the recommendation of her thyroid doctor. Supplementing with Gelatin- A Personal Story Lysine also lowers bad cholesterol and reduces inflammation. It is also used to convert fatty acids into energy, which can help control weight and reduce the risk of heart disease. Lysine is used to produce enzymes, hormones, and antibodies. Lysine also promotes growth and development. Lysine helps absorb calcium and build muscle. Proline is used in repairing connective tissues, producing collagen, improving the texture of the skin, combating the hardening of the arteries, and preventing the loss of collagen. Glycine is also used to regulate blood sugar, build strong muscles, and regulate metabolism. Glycine has a calming effect on the mind and can help fight depression. Glycine also inhibits the growth of tumors by promoting healthy cell growth and speeding wound healing. Glycine is used in the liver to remove toxins. The nutrients in gelatin provide many essential functions that not only benefit the body as a whole but also specifically help reduce acne on the skin. These amino acids work with collagen to improve the health of connective tissues and regulate cell function throughout the body. The main amino acids found in gelatin include lysine, proline, and glycine. Gelatin also contains essential amino acids that are difficult to find elsewhere. Gelatin is the best source of collagen in a person’s diet. Collagen is an essential material that is used to repair connective tissue (like nails, skin, hair, bone, and cartilage). ![]() ![]() Gelatin is derived from any animal part that contains collagen. Gelatin is a source of animal protein contained in all animal fats, skin, bones, teeth, and feet. Read on to see how gelatin could help you get healthy, glowing skin. Gelatin contains collagen and other essential amino acids that could be the key to healing all of your skin troubles- wrinkles, acne, dry patches, scars, redness, and more. Yes, the same gelatin that is present in Jello (not that we are recommending that you start consuming boxes of Jello- which is full of chemicals, added sugars, and processed ingredients). What is this beneficial ingredient? Gelatin. What if there was one simple thing you could take to instantly make your skin healthier, smoother, firmer, and more attractive? Wouldn’t you want to add it to your diet? It turns out, this secret miracle ingredient for skin has been hiding in your home for all of your life. However, gelatin may also have hidden acne-fighting ingredients. Gelatin contains collagen, which can fight wrinkles and make your skin smooth. Gelatin has amazing healing properties for bones and skin. ![]() shanks are used primarily in table-top or portable nail. ![]() The 1/8 in shanks are used in the older nail drills and 3/32 in. The industry’s standard for the shank is either 1/8 or 3/32 inch in diameter. The shank is a small cylindrical rod compared with the head. Modern methods to perform microblading are remarkably similar utilizing a series of very fine needles in rows with varying shapes like slopes or half circles (often called a U), which Otzi's mummified body is believed to be approximately 5,300 years old so modern microblading isn't exactly a replacement invention it's more a case of employing a more precise tool to perform the identical quite tattooing method that was used thousands of years ago. A nail bit has two main sections that adjacent to each other, a shank and its head. Use of hand tools is that the oldest sort of tattooing dating back thousands of years, after all the tattoos that are discovered on the mummified skin of Otzi the iceman (who was discovered within the Otztal Alps in South Tyrol, Italy in 1991)1 are likely to possess been created by a way remarkably like the modem service of MicroBlading. ![]() They are less aggressive than metal bits meaning they will last longer but aren’t as versatile however it’s possible to use them with other materials like plastic or rubber if you purchase. MicroBlading is solely another kind of cosmetic tattooing employing a tool, you will see it mentioned as MicroBlading, Micro-Stroking, Feather Touch, Hair Like Strokes, Eyebrow Embroidery and a spread of other terms. Ceramic Nail Bits: Best For Acrylic And Woodworking These bits are made of high-grade ceramic and work well for acrylic nails, gels or woodworking. Francesca Ebel, Washington Post, 27 Sep. 2023 The two couples were among more than 52,000 people who had crossed into Armenia by Wednesday afternoon, according to the authorities, abandoning the mountainous region of Nagorno-Karabakh, which Armenians call Artsakh. Angie Martoccio, Rolling Stone, 28 Sep. 2023 At the time, Songs for the Deaf was pretty popular and crossed into the mainstream. Verb Travis King, the young American soldier who crossed the border on foot from South Korea into North Korea in July, was back in the U.S. 2023 Additionally, elastic cross straps enhance the compression of the neoprene sleeves, while providing rotational ligament support. Chris Bieri, Anchorage Daily News, 16 Sep. 2023 The two sophomores are best friends and teammates on the Wolves cross country team. 2023 Nacho sent a low cross just inside the top of the penalty area, and Carles stepped into it and right-footed a perfect shot inside the near post. 2023 Hoffman made a spirited run to the right end line and delivered an ideal left-footed cross to the middle for an unmarked Petty to cleanly head home. 2023 Christian pilgrims used to trek to a shelter on a nearby ridge in order to contemplate the cross. Sandra Gutierrez G., Popular Science, 20 Sep. 2023 Separate your cords into two groups and lay them on a flat surface in a cross shape. ![]() ![]() Andrew Higgins, New York Times, 21 Sep. 2023 By tilting away from Armenia, Russia also wins points with Azerbaijan’s most stalwart ally, President Recep Tayyip Erdogan of Turkey, a NATO member but one that has frequently worked at cross purposes with the West over Ukraine. Karla Walsh, Better Homes & Gardens, 26 Sep. Noun Remove the press from the fridge and press the plunger down to lower the cross plate. Forever Pie is Adler’s early ‘90s love letter to late nights in LA, which were always fueled by pizza. It’s a hip-hop-themed, NY-style pizza parlor, but everything is plant-based. Matthew Kang Forever Pie, Melroseįorever Pie is the work of restaurateur Nic Adler - Monty’s Good Burger and Nic’s On Beverly operator, and Goldenvoice’s VP of festivals - who introduced the new restaurant on December 5. Scallop and seafood in salted egg wrapper topped with morel mushrooms at Bistro 1968. Don’t expect any dim sum carts, but do opt for Chef Wong’s mix of traditional barbecue buns and spare ribs with modern options like the salty egg yolk golden skin har gow (shrimp dumpling), and crispy golden lobster roll. Loyalists waited through a year of delays and restarts to land at the new Bistro 1968, where dim sum is served all day long with an expansive selection of entrees. This is the same group that opened Enlighten Bistro 168 in Arcadia in 2021, which closed after three months - but not before Chinese social media labeled it as some of the best dim sum in the region. ĭim sum specialist Bistro 1968 found a new version of home in San Gabriel in early December. For more under-the-radar restaurant openings, check out this companion list. Consider this monthly rundown a go-to guide for the newest and boldest debuts across the Southland. Los Angeles is no stranger to splashy restaurant openings situated in iconic buildings and helmed by big-name chefs. You will need a capture card that connects your PS5 and your PC, since neither your PS5 nor your computer can capture and record your screenplay on its own.Ĭapture cards come in two different types: external and internal. What is a "capture card" and how does it work?Ī capture card is a device that "captures" the video signal from one end and encodes it so that the output device can process it.įor instance, say you want to record your gameplay from your PS5 to your PC. You will learn how a capture card functions in this article, along with tips on how to choose the best capture card for your purposes. If you're budget conscious then it might be best to skip out on 4K for now, but if you want your recordings and streams to really look good then get a 4K capture card.If you're considering live streaming video games on Twitch or YouTube, you might be interested in learning whether you'll need a capture card and why. However, capture cards that support 4K tend to be a lot more expensive. Xbox Series X|S consoles can easily handle 4K and so getting a capture card that also supports 4K passthrough makes sense if you want to stay current and provide a better audience viewing experience. This is a free program that works with most capture card hardware and gives plenty of options for controlling your recordings or streams. While there are several options to choose from, the best capture software in our opinion is OBS Studio. Best Xbox Series X|S Capture Cards: Frequently asked questions What capture software should I use with a capture card? Modern capture cards are impressive technology, and whether you want to make videos or stream, you'll be in good hands. Whichever of these you choose, though, your games will look incredible. When it launched, it was ahead of the curve, and while others have caught up, AVerMedia still has the one to beat for now. It gets the edge through its ease of use, its now lower price, and the fact it produces some really stunning-looking video. It handles everything you could possibly throw at it, and a bunch more you hadn't even thought you might want to do. Plus, it provides lag-free captures in up to 4K, although if you want 60FPS you'll have to choose 1080p.Īnother fantastic option is the AVerMedia Live Gamer 4K. Its external connection means that you don't have to open your computer tower and install it. If your Xbox Series X|S is connected to a monitor or TV that supports VRR and/or HDR, then you really ought to consider getting Elgato HD60 X. The Ripsaw HD lets you enjoy your games at their best while producing a great stream at a great price. Streaming doesn't go above 1080p60 anyway, yet for virtually all of us. It's also only $160, which makes it the cheapest here by some margin. Still, it's uncompressed, at least, so the results are excellent. This means it's a whole lot easier to set up than many other capture cards out there.Įnjoying your games in 4K while streaming to somewhere like Twitch at a lower resolution doesn't have to be expensive or require some kind of mammoth PC.Īs covered in our Razer Ripsaw HD review, this capture card uses USB-C 3.0 for almost zero latency, which makes it perfect for streaming with, albeit the video, it can capture is limited to 1080p60. Like the HD60S+, it connects to a computer externally via HDMI cables rather than needing to be installed within a tower. You won't notice any horrible lag while using it. Our top pick also features 4K/FPS, HDR video passthrough that is equally smooth. The Elgato HD60 X is a step up from its HD60 S+ predecessor, capable of running 4K/30FPS and 1080p/60FPS capture smoothly and steadily. ![]() ![]() Having said all that, if you don't have a monitor capable of VRR or HDR then there are other capture cards out there that will suit your needs better at a lower cost. It's the latest and greatest from an established and trusted capture card company. ![]() VRR in particular minimizes screen tearing and stuttering while HDR allows images to come through with a whole lot more color and depth. As our own Jez Corden stated in his Elgato HD60 X review, this capture card is "ideal for gameplay streamers who have a FreeSync-capable TV or monitor in their setup." It features both VRR and HDR passthrough to work better with the latest monitors and TVs. ![]() Certification CostĪccording to PMI, PMP-certified professionals in the U.S. As part of the certification process, you’ll learn industry best practices that you can start incorporating into your day-to-day work life immediately. Holding PMP certification should make you more marketable when it comes to looking for better or different positions in project management.Īre you looking to make a career change? Move into a higher role in your current team? In either case, PMP certification could be just what you need to level up your career. Earning PMP certification through PMI carries lots of weight in the project management industry. The Project Management Institute is the leading organization for project management knowledge and the publisher of the PMBOK. earn about 32% more than their non-certified peers in project management. Now, it’s time to consider your potential return on that investment. ![]() Since we’ve listed the costs of PMP certification above, you likely have a good idea of the investment you’d need to make to get certified. To determine whether PMP certification is worth it to you, weigh the costs of certification against the potential benefits. The renewal fee, due every three years, is $60 for PMI members or $150 for nonmembers. Once you’ve passed the PMP exam, you must complete a certain level of continuing education to keep your certification active. Retakes cost $275 for PMI members and $375 for nonmembers, so it’s best to go into the exam as prepared as possible. After that, it’s up to you how much time you spend studying for the certification exam. Most PMP certification training courses take only a few weeks to a few months to complete. The time spent on this step can be different for each individual, as well as dependent on location and testing center availability. Once you get that experience under your belt, the rest of the certification process involves studying and scheduling your test. Consider documenting your work experience as soon as you consider applying for PMP certification. How long does it take to get PMP certification? The most time-consuming part of the PMP certification process is completing the required work experience. To sit for the exam, the cost is $405 for PMI members or $555 for nonmembers. ![]() Free PMP certification training is available through some resources, but usually only for short trial periods. Consider a program that holds GAC accreditation when searching for courses. Courses offered through well-known colleges and universities tend to cost more, but many also offer for-credit programs that result in undergraduate or graduate certificates. Most PMP certification training programs (through which you can earn your contact hours) range in cost from around $300 to around $3,000. If you have a bachelor’s degree, you must complete the following before pursuing PMP certification. If you have completed high school or an associate degree but not a bachelor’s, PMP certification requirements are as follows. You must accomplish a certain amount of professional experience and formal training before you qualify for PMP certification. These courses take a few weeks to a few months to complete, and they teach the concepts you should understand before taking the PMP certification exam.īelow, we’ll discuss how to get a PMP certification in more detail, including prerequisites and PMP exam costs. You can complete contact hours through a PMP certification course, which you may take online or in person. If you have this work experience or are working toward it, the next step is to complete at least 35 hours of formal PMP training, also called “contact hours,” or hold a current CAPM certification. Without a degree, you must complete 60 months of experience. If you have a bachelor’s degree, you’ll need 36 months of relevant project experience to qualify for the PMP credential. Precise requirements vary depending on your level of education. PMP certification requires months of work experience. The first step to earning PMP certification is to begin work in the field of project management. Along the way, you’ll learn about concepts like Agile, waterfall project scheduling, leadership and business management. This designation can help you distinguish yourself from your peers and gain respected credentials in your field. ![]() PMP certification demonstrates a strong understanding of the concepts set forth in the PMBOK and other reference materials. The PMBOK is the holy grail of knowledge when it comes to project management concepts. It’s available through the Project Management Institute (PMI), which publishes the Project Management Book of Knowledge (PMBOK). PMP certification is the most widely recognized in the world of project management. Professional certifications verify your career skills and allow you to learn more about important concepts and industry best practices that can help in your day-to-day operations. “Closed system” and “open system” aren’t formal medical terms, so brands may use them in different ways. open system breast pumpsĪs you shop for a breast pump, you’ll first want to consider whether you want a closed or open system. Though not a popular way to pump, it’s certainly an option when you need it.Ĭlosed system vs. You can do this by forming the letter “c” with your hand around one breast and gently squeezing from the outer breasts towards the nipple. Hand expression: This is the process of manually extracting milk from your breasts without a pump. Wearable breast pump: A wearable breast pump, also known as a cordless or wireless breast pump, is a type of breast pump that you can wear in your bra and that doesn’t require being connected to cords. Many major breast-pump brands offer hospital-grade models. Hospital-grade pump: These offer a higher level of suction and are more efficient than some of their less innovative competitors. Single pump: A single breast pump only allows you to pump from one breast at a time, which may come in handy if you plan on pumping from one side while your baby nurses from the other. They are more affordable.ĭouble pump: A double breast pump allows you to pump from both breasts simultaneously, which is the most efficient way, especially if your goal is to create an excess milk supply or if you’re pumping instead of nursing. Manual breast pump: A manual breast pump requires you to manually remove milk from your breasts. This type of breast pump is ideal for parents who pump frequently and need to express a significant amount of milk at a given time. The milk is at greater risk of contamination with an open system.Įlectric breast pump: Electric breast pumps are connected to an electronic device that creates suction. Open system breast pump: Open system breast pumps don’t have this separation between the pump parts and the motor, which may cause milk to get into the motor if you use an electric pump. It also helps to maintain a more hygienic environment for the milk. These pieces (which can be a pain to clean) prevent liquid, be it the breast milk itself or the moisture from the heat of the pumping parent’s body, from affecting the electric motor. So to offer you a bit of a breather, we’ve compiled a list of 10 of the best breast pumps on the market (and descriptions of why they might be the right match for you).Ĭlosed system breast pump: A closed system breast pump uses a barrier between the different parts of the breast pump, such as the valve, breast shield, flanges, and connectors. We get it! Decision making can be stressful, especially in the final stretch of pregnancy or the early months of parenting. Many parents don’t need a breast pump, but if you find you need one, and it’s now time to decide on a breast pump, you might be feeling overwhelmed. Best budget breast pump: Lansinoh Signature Pro Double Electric Breast Pump | Skip to Review.Best lightweight breast pump: Medela Freestyle Flex Double Electric Breast Pump | Skip to Review.Best hospital-grade breast pump: Medela Symphony Double Electric Breast Pump | Skip to Review.Best portable breast pump: Medela Pump in Style with MaxFlow | Skip to Review. ![]() Most comfortable manual breast pump: Philips Avent Manual Breast Pump | Skip to Review. ![]()
![]() Department of Health and Human Services and are subject to historical revisions. Hospitalizations and test positivity are reported based on dates assigned by the U.S. viral test specimens tested by laboratories and state health departments and reported to the federal government by the 50 states, Washington D.C. Hospitalization numbers early in the pandemic are undercounts due to incomplete reporting by hospitals to the federal government. Dips and spikes could be due to inconsistent reporting by hospitals. Figures for Covid patients in hospitals and I.C.U.s are the most recent number of patients with Covid-19 who are hospitalized or in an intensive care unit on that day. The seven-day average is the average of the most recent seven days of data. Department of Health and Human Services (test positivity, hospitalizations, I.C.U. About this data Sources: State and local health agencies (cases, deaths) U.S.
![]() This is certainly a bit of a no-man’s land since there probably aren’t too many people with practical experience along these lines, so you should perhaps be conservative and keep the compression in a range where everything is manageable. If you put a mild cam in a 13:1 compression engine, the dynamic cylinder pressure might be equivalent to 15:1 with a larger cam. This means that a late closing intake point (with a long duration cam) reduces the engine’s dynamic compression ratio. This is because compression cannot begin until the intake valve closes. Remember that cylinder pressure is directly affected by cam timing. There’s still plenty of advantages to building a street engine with high compression that will take maximum advantage of the fuel’s reduced energy content. His recommendations will be conservative since we were talking about pump E85 as opposed to his company’s version of E85 which has a significantly higher octane rating than normal pump E85. We did a quick scan of the JE piston catalog and the highest compression off-the-shelf piston for a big-block Chevy, for example, was 14:1 with a 112cc chamber.Īccording to Wusz, even given the cooling effect of E85, his recommendation would be to limit the static compression ratio to 13:1 on a 4.00-inch bore small block and slightly lower in a larger bore engine like a big block Chevy. My guess is that a huge domed piston would hurt combustion efficiency more than it would help. The issue becomes the ability to generate that much compression. To answer your question directly, it appears both from our ECR chart and our own testing that you could run E85 on a normally aspirated, static compression ratio of 15:1. This also reinforces Rockett’s listing their E85 fuel as compatible with a normally-aspirated engine with up to 16:1 compression ratio. That means that you could reasonably build a 14:1 compression ratio engine and run it on E85 and not expect problems with detonation. This reveals our engine was running an effective compression ratio of over 15:1. ![]() Let’s plug in our 10:1 compression engine with a psi of boost into this equation: Given that warning, the formula looks like this:Įffective Compression Ratio (ECR) = x Static Compression Ratio This formula does not take into account the increase in inlet air temperature that occurs when you compress air – we’ll get to that later. This simple formula converts the amount of boost to additional compression ratio as if the engine were normally aspirated. One way to estimate the actual static compression ratio is by using a simple formula that produces a result referred to as Effective Compression Ratio (ECR). The engine made 600 flywheel horsepower using a Magnuson supercharger. If you look at our Effective Compression Ratio Chart (we’ll explain what that is in a moment) this would be like running a normally aspirated small-block with a 15:1 static compression ratio. The engine ran perfectly and we experienced no detonation problems. This was run on normal E85 and we checked to make sure the fuel was actually 85 percent ethanol and according to our test it was very close. As I mentioned last month, we tested a small block Chevy with a static 10:1 compression ratio with 9 psi of boost using E85. Wusz says that of the two numbers, greater emphasis should always be placed on the Motor octane number.īefore I get too deep into this, let’s try to quickly answer your question with some actual dyno testing as opposed to just theory. Evaluating these numbers, the “real-world” Motor number is always lower, but the goal is to have the two numbers be relatively close. Adding the two and dividing by two ((R+M) / 2) produces an AKI of 112. In the case of Rockett Brand’s E85, the Research number is 116 and the Motor number is 108. The first is a calculated number called Research octane and the second is Motor octane generated by actually testing the fuel in a variable compression ratio single cylinder engine. All gasolines use an anti-knock index (AKI) for the octane number created by averaging the fuel’s detonation-suppressing capabilities based on two very different tests. Rockett sells its own brand of race E85 listed as 112 octane. So with that as a variable, we might safely assume the octane to be closer to around 100. According to Tim Wusz of Rockett Racing Brand fuels, the quality of that blended gas may not necessarily be as good as 87 octane. It has a commonly accepted octane rating of 105 although that may vary depending upon the quality of the 15 percent gasoline. To quickly refresh, E85 is 85 percent ethanol (grain alcohol) and 15 percent gasoline. Jeff Smith: This is an interesting question that came out of last month’s discussion about E85. What is a general safe effective compression ratio on E85? The internet results in varying opinions from 13:1 up to an extreme 20:1. |
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