Nitromethane engine tuning books

A nitroburning engine and a top fuel engine are the same thing engines designed to burn nitromethane rather than gasoline. What you need to know about mechanical fuel injection dragzine. As more nitromethane is added to a mixture, the fuel weight per gallon increases. Jan 30, 2018 jennifer is a professional web developer and the daughter of drag racer, bob szabo. Note how with 40 per cent nitromethane mixture the jet size has increased by 1. Nitromethane was discovered as a racing fuel way back in 1954.

When you have a familiar engine setup and always race with methanol, that task can become tried and true. Methanol, nitromethane, dry lakes racers australia. Eds engine diagnostic system for all ic buggy, truck and monster engines. Mfi systems with alcohol or nitro fuels, combined with forced. Check out our powerful online jetting calculator or bookmark one of. I have big 49cc engine modifications, changed ports, exhaust and carburetor, or 10% nitromethane will be good. What is top fuel and how is it different from gasoline. On engines with enough compression and the correct heat range plug you. We are now in a position to consider the use of nitromethane blends in practice. The basics of engine tuning involve finding the right ratio of fuel mixed with air to get the right amount of power out of your engine. This is just a guide based on my own experience of tuning kyosho gx engines that. Nitromethane is used as a fuel additive in various motorsports and hobbies, e.

As an intermediate in organic synthesis, it is used widely in the manufacture of pharmaceuticals, pesticides, explosives, fibers, and coatings. Multiply that by the 9,500 btus per lb of alcohol and our motor would be making 35,055btus at 7000rpms. Exposure to heat and combustion byproducts changes the colors on the various parts of the spark plug. This book explains how the efi system determines engine operation and how the calibrator can change the controlling parameters to optimize actual engine performance. Once fired and the engine is running on the gasoline, the member will then turn the valve from the fuel pump to start feeding the nitromethane mixture. Engine and fuel system set up because alcohol fuels burn so much cooler and slower than gasoline ct recommend that you increase the compression of the engine to maximize performance, there will be little or no advantage to running methanol on a stock compression ratio. Many tuners do not change the fuel amount to the engine, and air to fuel ratio varies with air density. Advanced tuning takes engine tuning techniques to the next level. Without knowing your system inside and out, however, tuning with spark plug color alone can be misleading. Still shipping fuel injection, methanol, nitro racing tech books. Without adjustment of jetting, air to fuel ratios could go in and out of our best range, says bob szabo, noted tuner and author of many books on mechanical fuel injection tuning. Nitromethane efi tuning questions and engine management. Tune your engine with realtime density altitude from.

In this context, nitromethane is commonly referred to as nitro, and is the principal ingredient for fuel used in the top fuel category of drag racing. Dec 22, 2017 jennifer is a professional web developer and the daughter of drag racer, bob szabo. Nitromethane is an organic compound with the chemical formula ch 3no 2. It is very important for you to understand at this point i accept no responsibility for your engine and its performance or lack of performance if you choose to follow this guide. I can now run the dyno at night without upsetting the neighbors or waking up my kids. Nitromethane is a highly combustible substance that is generally only used in very specifically designed engines found in top fuel drag racing and miniature internal combustion engines in radio control, control line and free flight model. This tutorial covers how to tune the high speed and low speed needles of your nitro engine.

Since managing the fuel is really tough when you start making big power, its safer to just run rich, but the catch is. He built an engine with a colder spark plug and components that could take the nitromethanes corrosiveness. It is a musthave for tuners and calibrators and a valuable resource for anyone who wants to. Nitro engine news newspapers books scholar jstor december 2009 learn how and when to remove this template message. Theres very little in here about tuning and modifying emss. I do find myself consulting the book on a regular basis as i am tuning a couple airplanes. Nitro engine tuning my guide based purely only on my experiences. When you hear the term nitroburning funny car or topfuel dragster, that means that the engine burns nitromethane. The stromberg 81 carbs had to be nickelplated, as did the fuel containers hidden from prying eyes inside cardboard boxes. In most applications as the engine reaches higher and higher rpm the volumetric efficiency of the cylinder heads and camshaft falls off. Where the information applies to those designs is included as well. If you want a real efi engine tuning book get engine management advanced tuning by greg banish. Nitro engines are often flirting with hydraulic lock.

Masters of methanol drag racing fuel system tricks. The net effect of this is that the engine will rev higher on methanol than. Bob and jennifer maintain a blog at their websites in. Nitromethane is a highly combustible, highly explosive fuel that is also used in rockets and model airplanes. Dec 29, 20 model airplane fuel is mostly methanol blended with castor oil and nitromethane. In 1912 three racing drivers and a forward thinking draftsman early hot rodders convinced robert peugeot to adopt a radical new approach to grand prix racing engine design. Discover delightful childrens books with prime book box, a subscription that. Conspiring with draftsman ernest henry they conceived the worlds first dual overhead cam, four valve per cylinder racing engine, the peugeot l76. Bob is a retired welding engineer and author of 6 books about mechanical fuel injection engine tuning at. Bob and jennifer maintain a blog at their websites in addition to cowriting articles for various auto industry resources. Nitromethane is used as a fuel in motor racing, particularly drag racing.

Nitromethane is a fuel that is used in racing, particularly in drag racing, to provide more power. This is the ultimate nitro engine guide for radiocontrol vehicles from airage media. Most non supercharged engines dont make enough cylinder temp to color the plugs so most tuning is done by observation and the time card. Discussion in the hokey ass message board started by c10. For many racing engines, spark plug color is a window into the engine combustion process that can be used for tuning. This is what my research indicates thus far regarding mixes and separation, watermethnitro 50455 mix will mix and not separate but 504010 and above will start to separate. Nitromethane is a colorless, oily, highly flammable liquid with a strong, disagreeable odor that emits toxic fumes of nitrogen oxides upon decomposition. However, fuel curves should be well developed on e85 before turning up the spark advance or compression. By the time his experiments were done and a working engine achieved, edelbrock had picked up about 100 gallons of nitro. That high pressure seems out of reach but simple diesel engine considerations show that compression ratios as low as 12.

A common problem with commercial e85 is different mixtures of ethanol and gasoline. Vp racing fuel nitro 50 nm50 5050 mix of nitromethane. Ultimate nitro engine guide for radiocontrol vehicles. Nitromethane nitromethane is a fuel that is used mostly in specialized drag racing classes such as top fuel funny cars.

Jan 24, 2015 in addition to the nutsandbolts math of engine design and assembly, it is useful to know a few things about combustion and the effects of atmospheric pressure on engine tuning and performance. The following is the third in a series of articles exploring all facets of model engine fuel. What you need to know about mechanical fuel injection. Covering everything from stock turbocharger cars, seriously fast drag racers, boats, motorcycles, and daily driver modified turbo cars and trucks. Fi book introduction mechanical fuel injection constant flow. I have a large library in my office consisting of hot rod howto books and. Nitromethane is used to make industrial antimicrobials and pharmaceuticals, and is also used as a soil fumigant and as a fuel in race car engines. The practical rule is to provide no more nitromethane than needed for your plane, your engine, and your flying wants. Early drag and land speed racers found that nitro methane provided more horsepower and torque than gasoline in the early 1950s. I tuned it with blend of 10% nitromethane, 5% castor oil, 3% acetone, 2% water, 80% methanole, lambda 0.

Nitromethane everybody knows its there, but few, it. Running alcohol tip sheet ct racing have tested methanol fuel extensively over the last five years and have learned how to set up engines and carburetors for most atv applications. Tuning low end on novarossi paris racing products engine tuning tech tips by. Nitromethane should only be handled, stored, or used by trained personnel who fully understand nitromethane properties and have read and understand this data sheet. Nitromethane was discovered as a racing fuel way back in. Iupac recommendations and preferred names 20 blue book. Vp fuels are available for pickup only in our lindenhurst ny showroom, and cannot be shipped. How to set up numerical control of air to fuel ratio for accurate tuning nitro.

Elevation changes and how they affect engine tuning. Nitromethane is used as a fuel in motor racing, particularly drag racing, as well as for radiocontrolled models such as cars, planes and helicopters. Explaining the effects of weather on mechanical fuel injection. These can be used to tune a drag race, circle track, oval track or sports car engine for speed and power. Feb 04, 2011 hello if anyone used a mix of nitromethane to the engine in a bike. The theoretical ideal or stoichiometric airfuel ratio for gasoline is 14. It seems feasible to be able to mix in 5%, 10%, more. In particular, i discuss airfuel ratios, correction factors for dyno testing, and the effects of altitude on engine performance. Mar 21, 2020 airfuel ratio air density online airdensityonline air scoop articles autorama blower boost blower overdrive blower size blown engine bracket drag racing bracket racing carburetor checklist drag racing e85 engine tuning ethanol ford fuel fuel injection fuel injection calculator fuel pressure high altitude horsepower jetting mechanical fuel.

In other words per rpm the engine doesnt flow as much air. Nitromethane nm is a versatile chemical with a wide variety of industrial applications. Dje, is a nitromethane fuel system expert and manufacturer of very high atomization nozzles for fuel injection. The shorter shim stack resulted in an increase in engine temperature over long runs and a very responsive off idle response.

Does anyone have any experience tuning with this type of setup. The most important points were regarding compression and nitromethane percentage more nitro, less compression, or change the plug temperature and break in with different engine constructions. Engine torque for cylinder 1 is indicated by the blue line and engine rpm by the white line. The following is a list of tips that every methanol fuel user should be aware of. How to program cars ecu guide to car tuning chip programming posted by alex im e. Its chapter after chapter of what amounts to essentially just an advertising brochure for all the various manufacturers of ecus. Some of the information im finding would point to actually advancing the timing because of the low burn rate of the nitro. The jetarea software does all this for you and handles supercharged methanol, nitromethane and gasoline fueled engines, and drag racecars of all types. I know on this topic, im waiting for concrete answers. Nitromethane is a little like gasoline that has been premixed with nitrous oxide.

Engine tuning is the adjustment or modification of the internal combustion engine or engine control unit ecu to yield optimal performance and increase the engine s power output, economy, or durability. To make the most power you must keep the airfuel ratio where the engine wants it. Oct 24, 2017 without adjustment of jetting, air to fuel ratios could go in and out of our best range, says bob szabo, noted tuner and author of many books on mechanical fuel injection tuning. From what i have seen its easy to understand how exhaust tuning would be. The engine was toast, but eventually they learned to add lots more fuel, colder spark plugs, and stronger internals to stand up to both the higher output as well as nitromethane s corrosive effects. Onroad nitro engine zone the tuning bible this really should be stickied on top click on. Jetarea also includes an option for tuning nonsupercharged. I happened to acquire a 5 gallon can of nitromethane in a. Could you please, advise me the right and the safe way. However, much of it applies to 2 cycle engines as well as rotary engines. Home forums specific tech sections efi tuning questions and engine management the turbo forums the discussion board for both hard core and beginner turbocharged vehicle enthusiasts. Engine tuning and diagnostics for sale on racingjunk. No other fuel company uses a higher nitromethane purity, none. All different formulas for the particular glow plug engine being ran.

The carburetors usually feature 2 needles used to tune the mixture. Sep 01, 2010 8,000hp top fuel engine among all engines of drag racing, the king of the hill is the supercharged and nitromethane fueled monster. Pure power racing nitromethane is the highest quality of nitro available with a purity rating of greater than 99. Nitromethane nitromethane is a fuel that is used mostly in specialized drag racing classes such. The nitro mix is between 5% and up to 30%, castor oil is from 15 up to 20%. Engine torque for cylinder 1 blue line starts off high at the beginning of the run near 600 ft. Nitromethane carries its own oxygen, so it needs much less atmospheric oxygen to burn. A nitro engine generally refers to an engine powered with a fuel that contains some portion usually between 10% and 40% of nitromethane mixed with methanol. A nitro engine generally refers to an engine powered with a fuel that contains some portion. Find the resources you need for chevrolet, chrysler, dodge, ford and honda engines. Results of a special nitromethane fuels testing program in a roots blown methanol drag racing v8 how to set up numerical control of air to fuel ratio for accurate tuning nitro introduction to lambda tuning of nitro air density corrections horsepower corrections power analysis for various percentages roots blower analysis.

A reduced quantity of e85 is necessary to run a race engine previously set up for methanol. Kendall 1043073 gt1 high performance nitro 70 motor oil for nitromethane and alcoholfueled competition engines 1 quart bottle case of 12 5. The writer is don nix, president of gbg industries, inc. Understand that you will have to program all of the values to make the engine start, warm. The first thing you see before and during that start up is a crew member squeezing a bottle into the blower hat, the part where you see the butterfly valves that open on the top of the engine. Nitro 50 is a mix of 50% methanol and 50% vp m1 methanol.

The weather math and dragstrip physics are all laid out in the motorsports standard atmosphere and weather correction methods book. Posted in nitromethane tagged calculator, newsletter, nitro, tuning. Nitromethane everybody knows its there, but few, it seems, really know much about it. Misunderstood causes of detonation in high performance. Drag racing is rife with tuning myths and tips that might work for one engine but not another. Top fuel drag racing and miniature internal combustion engines. In some cases, for injected engines with no supercharger, top alcohol cars can burn a percentage of nitromethane. Thanks for watching this video by jthornley12 action. Top alcohol cars generally burn methanol, although a few burn ethanol. I have been researching about using a 57% nitromethane concentration mixed in with watermeth injection, i have so far found a lot of v8 guys talking about it, and a few references to nitromethane injection in the evo community, but im wondering if anyone here has had any experience with nitromethane.

Jun 20, 2019 jennifer is a professional web developer and the daughter of drag racer, bob szabo. If you dont have a fairly thorough understanding of the system, engines and tuning plus a dose of patience, dont buy one of these. Gasoline is a hydrocarbon, and the common chemical formula for gasoline is c 8 h 18. This entry was posted in 5000 horsepower on methanol, bobs blog, fuel injection racing secrets 2nd edition and tagged airfuel ratio, blown engine, jetting, mechanical fuel injection, tuning, turbocharged engine. Atmospherics and performance engine combustion guide. Torco racing fuel nitro methane is 100% chinese white used in top fuel drag racing and other forms of motorsports such as land speed racing that allows the use of this product in certain classes. Engine is working fine, but i want to move further and increase nitromethane % up to 2530%.

With a 20 percent nitromethane mixture, edelbrock picked up a 40 percent kick in horsepower. Like methanol, nitromethane has a strong tendency to preignition, but unlike methanol it has a much lower knock rating, that is to say it will detonate. Hot rod engine tech worlds first dohc, 4valve per cylinder. Hi guys, wonder if anyone has any experience with adding nitromethane into the water meth mix.