Tuning guide a basic tuning guide by dazzi basic tuning tune in order, make sure the car is at its base settings the setting you broke it in with. Also remember that it is always better to be running your nitro engine a little more on. Jan 26, 2008 hey guys, thought id start a thread about nitro engine tuning, if you guys have any tips and tricks youd like to share itd be a very big help would be nice if there was a sticky about this as lots of new guys are getting into bikes and starting with nitro only to get frustrated with setting the engine up. Greg banish is a mechanical engineer that works as an oem calibrator. If you take the air filter off and pull the trigger all the way back it should open completely. A reference book for the enthusiast engine tuner and race engine builder. Introduction rc nitro engine tuning before tuning your radio control, rc nitro car or truck engine there are a few steps that must be taken prior to starting.
The high speed needle and low speed needle are what determine fuel mixture settings. Printed on heavy stock and sized for pit box portability, the nitro pit guide covers engine tuning, clutch maintenance, brake adjustments, troubleshooting and much more in an easytoreference format. Knowing the true temp is always better then guessing and is far better than relying on the water drop test noted below. Nitro engine tuning guide part 2 the idle speed screw duration. No matter what you are tuning the these core courses are applicable to you. Turn the needles in small onehour increments and always have the idle screw set before you make these adjustments.
The first thing you should check is to make sure that when you pull full throttle the carburetor is fully opening. Engine tuning is the process of adjusting the carburetor mixture for optimum performance engine tuning is adjusting the fuel and air mixture entering the engine. It will cover initial setup, as well as in depth tuning instruction. Jetarea also includes an option for tuning nonsupercharged. There are two main causes, a glow plug problem or an incorrect fuel air mixture. Nitro engine news newspapers books scholar jstor december 2009 learn how and when to remove this template message. Two terms that will be used to descibe the tuning process are rich, and lean. If you still are having problems feel free to post it in the forum or consult traxxas, here is the link for customer support. This technique is for a fully broken in engine that is ready for a full performance tune. Smaller engines generally have little scope for tuning. Nitro engine tuning rc car truck radio control info.
Ultimately the make and model of engine you will be tuning and the software hardware you will use to tune that engine will be specific to you but the fundamentals are universally applicable. How quick does it respond to blips of throttle on the stand. The carburetors usually feature 2 needles used to tune the mixture. Why remapping a naturallyaspirated car is totally worth the money.
The settings that it comes with from the factory may be a good starting point. The jetarea software does all this for you and handles supercharged methanol, nitromethane and gasoline fueled engines, and drag racecars of all types. The cookie settings on this website are set to allow all cookies to give you the very best experience. New material on electronic fuel injection and computerized engine.
Rc nitro gas engine tuning guide my engine doesnt start what might be causing the problem. His writing style is very easy to read and the book is filled with pictures too. The following is a list of tips that every methanol fuel user should be aware of. 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. Quick overview this musthave reference is the perfect toolbox companion for an rc nitro fan, from fun runners to hardcore racers. What you need to know about mechanical fuel injection. However, these engines are somewhat sensitive to the environment.
Turn the mixture needles clockwise to lean the fuel mixture and counterclockwise to richen it. Rc heli july 2007 helicopter magazine get into aerial photography today swiftly upgraded our guide to voltage regulators tune your nitro engine become a scale mold maker helimax kinetic 50 by mark madsen and mike velez jan 1, 2007. Nitrous system theory, selection, and tuning as modern engines become more difficult to modify, the use of nitrous oxide to obtain phenomenal performance gains is on the rise and for good reason. Posted on 6th january 2015 by hobby warehouse we get asked heaps about the problems associated with a nitro engine not starting correctly, or not holding idle, and so weve create the following guide to help you sort out the major problems that might be affecting. I got it firing and i started to tune it and ive watched the traxxas video about 15 times, watched many youtube videos and. Whether youre a nitro beginner or an experienced veteran, this 200plus page color book contains all the answers to the most often asked nitro engine questions. Probably too lean, and once it starts to jump on the pipe there isnt enough fuel. Insert the glow plug driver on the glow plug and then pull the chord a 35 times until the engine starts. The definitive manual on tuning for performance or economy 3rd edition by david vizard isbn. A temperature gun or gauge is a great investment for your nitro engine and will last you for many years.
When i went to run it i had to mess with the needles to get it to fire up. Nitrous oxide is stored as a liquid under pressure and turns into a gas once it expands. You may need to adjust for higher altitude operation, or for. 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. You can adjust the percentage of nitro to alcohol which will change the fuel volume required with nitro the more fuel you can put in the engine and burn the more power you will make.
Nitro engines are often flirting with hydraulic lock. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Apr 03, 2005 tuning guide a basic tuning guide by dazzi basic tuning tune in order, make sure the car is at its base settings the setting you broke it in with. Everyday low prices and free delivery on eligible orders. It contains a section on how to tune and troubleshoot nitro engines. Odds are your local speed shop is filling your bottle with nitrous plus. These are excellent resources on the basics of ecu operation and general engine tuning operation. Many rc nitro car racers find it difficult to tune the low speed needle properly. This tuning procedure will set your needles to where they need to be for optimum performance, the engine will tell you all you need to know. But more importantly, just take your time when tuning. Advanced tuning takes engine tuning techniques to the next level. Make sure to completely breakin your nitro engine prior to tuning the engine for maximum performance.
Since managing the fuel is really tough when you start making big power, its safer to just run rich, but the catch is. If this is your first visit, be sure to check out the faq by clicking the link above. Ultimate nitro engine guide for radiocontrol vehicles. 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. Nitro engine tuning maximize your engines power potential so now you can get your engine started on a regular basis, but youre still struggling with the finetuning that will score you a win at the racetrack or bragging rights at the parking lot. I dont usually push products but i have to on this book. Detailed modifications and improvements are described. The low and high needles, shown on this da70 twin, need to be tuned well for optimum power and reliability. Rc nitro tuning a beginners guide covers the basics of all rc nitro. Master efi tuner gm efi i am in no way affiliated with author or business, just thought i would share a good find. Properly tuning a nitro engine can make that difference without jeopardizing its health.
However since nitrous oxide in its purest form is a medical grade it is against the law to purchase or use for racing purposes. Performance tuning guide professional nitro modification. I read an article in rc heli magazine awhile back that adding shims changes the engine timing, and that you add shims to improve tuning on higher nitro 2530% nitro and remove shims if you have them for lower nitro 1015%. Engine tuning basics from terryscustom flyinggiants. Advanced tuning, author and calibration engineer greg banish provides the reader with the insight required to understand and tune modern efi systems. Bob is a retired welding engineer and author of 6 books about mechanical fuel injection engine tuning at. The engine should start within 3 to 12 pulls you may need to give the engine a small amount of throttle as this can help the engine start. The engine also must be up to full operating temperature. The person who had it before me lived in california and i live in colorado. Windows tablet pcs are now powerful enough to handle all the complicated thermodynamic property equations that must be solved for this type of analysis. If you take the time to carefully tune your engine, it will last longer and perform better.
A compilation of all the tuning tutorials for nitro engines that i have done. By understanding the fundamentals, you can better tune your engine for maximum performance while at the same time, expanding the life of your engine. Please click accept cookies to continue to use the site. Performance in motion, augustseptember 2007 if you are willing to spend the time learning the technology this will be a great book for your library. Nitro engine tuning my guide based purely only on my experiences. Boosted cars are known to get massive power gains from revised ecu maps, but theres always been a question mark over chipping. Enginetuningtechtips wegetdozensoftuningquestionsfromaroundthe. Apr 29, 2012 and, just as the bikes themselves have changed, so have the tools with which we tune them. My engine never had any shims added to it, it only has the single original factory shim. Once you get you engine running good, this will be the only needle that you should have to mess with. Discover delightful childrens books with prime book box, a subscription that. For engine builders and tuners with a technical interest, weve expanded into extensive. This book explains how the efi system determines engine operation and how the calibrator can change the controlling parameters to optimize actual engine performance.
May 30, 2018 designing and tuning highperformance fuel injection system by greg banish and performance fuel injection systems hp1557. Looking for a helpful person to bounce some figures off o 4. Turbo engines generally speaking have wider tolerances than a nasp engine. There are many ways to tune a nitro engine but i figure this is the most simple way to do it. I have some tips that i have gathered that will help you tune your traxxas engine, especially if you are new to nitro motors. A nitro engine generally refers to an engine powered with a fuel that contains some portion.
Some of the tips may even be helpful to some of you nitro veterans out there as well, so grab your gear and lets get started. When a glow plug is working properly, it will burn a bright orange. Jan 21, 2014 im working on putting a injected nitro bbc together to run in my nostalgia funny car for 2014. Carburetor the main function of the carburetor is to. These courses are applicable to all engines and all engine management systems. Why remapping a naturallyaspirated car is totally worth the. Rc nitro tuning a beginners guide covers the basics of all rc nitro powered vehicles, cars, boats, planes. By far the steepest learning curve for a nitro rookie is learning how to tune a carburetor. So please take that in consideration when tuning your engine. Nitro engine tuning guides learn how to tune like a pro. And this means your nitro experience will be more enjoyable. Try to keep the temperature between 220270 degrees fahrenheit. The book covers topics such as maintenance, engine tuning, painting and. What are some good books on tuning engines for performance.
How to tune a nitro engine general nitro msuk rc forum. Dont be afraid to leave glow starter on glow plug if it helps the engine run if it does help the engine run than your carb setting is probably a bit rich and should be adjusted by turning the low speed. Below is a simple guide on how to tune a nitro rc car engine. Nitro engine tuning guide knowing your slide carburetor. Naturally aspirated engine tuning page 1 mazda mx5eunos. This is the main needle that you will adjust the most. Yes i am well aware, and well read up on the benefits, costs, ease, etc of supercharging and turbos. When you add percentages of nitro, things suddenly get more complex. This tutorial will give a detailed walkthrough on how to tune your nitro vehicle. Dec, 2017 by far the steepest learning curve for a nitro rookie is learning how to tune a carburetor. We ask for your understanding as you may experience delivery delays. Whats up with my rc nitro engine and how do i fix it. So his books are written with a good foundation and lots of experience to back it up.
Pdf summary of basic engine tuning, created by judge in the engine tuning article, terry also discusses baffling in order to keep the head cool. Jan 01, 2003 ultimate nitro engine guide for radiocontrol vehicles rc nitro on. Bob and jennifer maintain a blog at their websites in addition to cowriting articles for various auto industry resources. Tuning engines can be a mysterious art, all engines need a precise balance of fuel, air, and timing in order to reach their true performance potential. Jetarea brings sophisticated engine tuning and et prediction technology into the 21st century and right to the starting line.
The fuel volumes required for alcohol gives the tuner a broader tuning window. This is the ultimate nitro engine guide for radiocontrol vehicles from airage media. The weather math and dragstrip physics are all laid out in the motorsports standard atmosphere and weather correction methods book. How to tune a nitro rc vehicle with pictures wikihow. Tuning is simply adjusting your engine for best performance. It pays to use good quality performance parts and sadly each performance. Before you begin, build your vehicle and make sure the engine is broken in, meaning that it has been started before and at. Nitroobd2 does not damage the engine and the car computer ecu or not cause any negative effects to the car factory setting. Introduction to engine tuning march 4, 2015 by muscle car diy before this book even begins, i wish to make it perfectly clear that this is not an engine design or. Leaning the fuel mixture will increase engine power up to the engine s mechanical limits. First, may i suggest you download a copy of the free ebook secrets of nitro rc cars. From tuning to troubleshooting, this book has it all to maximize your engine s power. It is the first one i have read that actually explains what the tables do, what you should put in them and what the changes will do for hp tuners. When you have a familiar engine setup and always race with methanol, that task can become tried and true.
Feb 22, 20 remember to make small adjustments at a time, as they make a big difference when tuning your nitro engine. This page is dedicated to answering frequently asked questions about nitro engines and how to tune them. 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. It is a musthave for tuners and calibrators and a valuable resource for anyone who wants to. Jennifer is a professional web developer and the daughter of drag racer, bob szabo. High horsepower tuning for mechancial fuel injection racecar.
Drawing on the authors many years of experience in tuning and modifying highperformance road, rally and race units, every aspect of an engine s operation is explained and analyzed. Engine break in and tuning for the new and experienced racer. My brotherinlaws brother ran nitro in his drag harley. Nitro boat engine tuning requires a few steps that must be taken prior to starting. The engine s performance depends on the fuel mixture. At rc models wiz, we discover a simple method to adjust the low speed needle to within 5 percent of peak performance. How to design, build, modify, and tune efi and ecu systems. The engine must have already completed the break in process. The highspeed mixture will affect the way engine runs at mid and high r. Once the engine starts remove the glow plug driver and drive the vehicle around to build up the engine temperature. How to tune and modify motorcycle engine management systems addresses all of a modern motorcycle s engine control systems and tells you how to get the most out of today s bikes. Engine tuning terms carburetor carb the engine component that regulates the flow of the airfuel mixture into the engine. This is just a guide based on my own experience of tuning kyosho gx engines that. How to set up numerical control of air to fuel ratio for accurate tuning nitro.
Nitro engine tuning guide part 1 the needles of the. Im starting to do a bit of research in this area there are a. They are a dealer for procalc and a stocking distributor for all of our books. Is it ok to switch nitro content or brands of fuel. The low speed needle is used to meter the fuel burnt by the engine at idle and low rpm. Understanding your engine the first and foremost consideration when attempting to tune your glow engine is understanding the basic parts and their functions. The nitro rustler seems to be the best nitro rc engine on the market and is manufactured by a trusted brand name.
Before we start adjusting needle valves, lets consider the role of the carburetor and how it works. There is good information on larger rc cars and the book really focuses on nitro cars. 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. There are also specific operational and maintenance requirements from engine tuning, to breakin, to afterrun maintenance. When you exceed the base output of the engine by a factor of 2550% more you may start to hit reliability issues. Ultimate nitro engine guide for radio control vehicles. Nitro engine tuning guide books nitro engine tuning guide eventually, you will entirely discover a further experience and capability by spending more cash. All about nitro rc cars, gas rc cars, electric rc cars and more. Make sure to identify where the high speed needle and low speed needles are located. Eds engine diagnostic system for all ic buggy, truck and monster engines.