This can be good and bad. my car is fairly fast for a sedan, I've raced .5.0 mustangs, bmw, gti and other cars and it does pretty good, but I want some more average price for the tune? e.g. We loaded up the car and took it to Quintin Brothers, about three hours north of Hemmings HQ, and the staff mounted it to the dyno. Install any alternate injectors, map sensor and chip that you will be running to get to the dyno. If you are contemplating a strictly race situation, don't bother with the factory ECU or chips at all. Remember, that the people who design and build this stuff likely know a hell of a lot more than you do about it. Chip reprogrammers can richen the mixture slightly at full throttle and advance the ignition timing slightly perhaps but this would be at the expense of lowering the factory safety factors for detonation and emissions. Can dyno tuning increase any horsepower with those small upgrades? Even though you have made modifications in your car, the ECU still continues to get an input of the old data which is stored in it’s memory. You ended up with a perfect spark timing only in a limited RPM band. Above the code area you will find the Constants and Maps, among other things. Third, "Best Guess" programs are not as good. Join Yahoo Answers and get 100 points today. Another way to return the car to stock would be with the Accessport. These are 28pin chips 1.5 inches by 0.6 inches. It's supposed to be one of your last modifications and not one of your first, to prevent the need for multiple chip reprogrammings after each addition of a new modification. You could take it to the dealer and have them reflash the car to stock. Many systems are not legal for street use and many manufacturers will not guarantee emission compliance because they cannot control the programming. To find this table you would look for ascending RPM values, ascending MAP values and many fuel injector pulse values, RPM X MAP numbers, in this case 13X9. Do not believe that every time you put your car in for a service, the ECU/PCM will be reflashed with new factory firmware, this is not usually the case. With race engines we have run injectors up to 4 times the size of the stock injectors. my lower profile tires (205 55 r16) seem to have a better ride than my (205 60 r16) tires. In some cases, poor driveability and performance are the result. The only way to get good results on a modified engine with different mods from the base engine is to take your vehicle to the tuners facility and get a true custom chip burnt for YOUR engine. my car is fairly fast for a sedan, I've raced .5.0 mustangs, bmw, gti and other cars and it does pretty good, but I want some more. Software that not only provides HEX editing capabilities, but can also visually map out cars ECU map into sections... without you having to look for them manually. The amount of ignition timing and fuel delivery is changed for a given air flow and rpm compared to the stock program. If you do, you are a nut and no one will talk to you. This would not take more than 10 minutes at the most in summers. you need to in all danger discover a number of web content with great components on what swaps could artwork. Most people will run an economy map through the weekly commute and then go for a performance map at the weekend or a race map for track days. This old data no longer is credible as it pertains to conditions that existed before the modification. Civic Si Coupe P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU) PBA : 97+ US Acura 1.6EL PCT : 98+ JDM ITR / CTR PCX : 99+ OBD-? 3 Typical Questions When Attempting Car Tuning: First, don't chip too early There is no point in getting a new ECU program early in your engine build up and then later upgrading to bigger lift and duration cams, or larger injectors, bigger fuel pump, or an aftermarket IM/bigger bore TB , etc. Most ECUs up to 1996 hold their program information and data in small chips called ROMs. This did a sufficiently good job, but for the most effective power you would need to vary the timing to a greater degree than a fixed ratio advance curve. Turbo tuning should be done by a professional using a dyno machine, as mistuning can lead to failure of vital engine parts. They can apply a load to the driven wheels that is similar to the load applied when the car is driven on the street - this is nice because you can tune WOT without endangering the general public. PART 1 of this article will talk about basics of ECU. This is when a programmable system is a must. Then we put the car on the dyno, tune it, run it hard….rings need PRESSURE to be able to seat so running the engine up to 75% will help those rings seat better. There is also a 3-D fuel table (or "fuel map") which has Intake Manifold Pressure (Y-axis), RPM (X-axis), and Fuel Values instead of spark Advance (Z-axis). Is there an option? Can dyno tuning increase any horsepower with those small upgrades? Anyone who has added performance parts to their engine should consider a remap. If this is the case then set your timing conservatively and use high octane fuel. The next series of 4 bytes, 43 FA 00 00, is a value of 500. IMO. While this will cost you a little initially, the long running savings will be worth it. I can't tell you how many times we go through all the work of strapping the car on the dyno making pulls just to find out that hes got a clogged fuel filter on the car with 40,000 miles on it. In a nutshell, the dyno is used to apply a load t… isn't this opposite of what should be expected. In reality though the dyno is more for peak power stuff, sounds like you need to tune cruise, idle and deceleration enrichment's or overrun. However, I had as much as 10hp and 11tq increase throughout the rest of the rpm range. It is typical to have a valet mode to stop the boy racers at the garage thrashing your pride and joy on the "test run" to bed in the new wiper blades they have fitted. This can be done with various piggyback ECU tuners. The dealer would need to mail in your ECU to Ford. ECU resetting is over. What hardware, skill and tools will you require to install the system? There is a greater tendency for the fuel to leak past the injector seals. It is a box of electronics which plugs into the ROM socket on the ECU, and a laptop or PC. Other systems to consider are the Motec M4, Apex Power FC, Accel DFI, SDS EF3, and Electromotive Tec3. This would also reduce the number of resets you will have to do to the ECU. API can even arrange dyno-tuning on a dyno local to you. Like ROMs, EPROMs are suitable for the final tune. Have an objective measure of performance as your baseline before programming so that you have something unbiased and not subjective (like a butt dyno impression) to compare to afterwards. It made very little power for them , or likely made their engine run too rich, or both. When you fill up you are also restricting yourself to high quality fuel and even high octane fuel if this was what the map was optimized for, and you must be prepared to replace components that fail due to the extra work they are doing. This is better than the manufacturers map in that it uses tighter parameters but it is still a one size fits all job. The program commands can be entered on 2 dimenional tables. Most people who buy a mail order chip usually have a piggyback tuning box, like an Apex fuel controller (SAFC or VAFC) or Field SFC VTEC/fuel controller, and use those to further tune the fuel delivery on the dyno with a wideband O2 sensor. All work slightly differently and apply some or all of the following combinations. This means you can tune a map in minutes vs. hours... and without making any mistakes that could potentially render cars ECU chip useless. I was forced to learn how to tune my car because if I spent all kinds of money on tuning on a dyno, I would have less go fast parts. If neither of these appeal to you and you insist on getting a mail order chip knowing that it won't be the best program, then stick to the known programmers (PM me if you want recommendations from people I've known who do a decent "best guess" chip). A perfect subject for some basic dyno testing and tuning. The ECU shuffles through the tons of data that come to it in the form of readings to decide the course of action that should be taken by the engine to ensure an ideal drive. Dyno time is not cheap, but it can save you a lot of time and a lot of guessing. TorqueCars strongly recommend that you get a switchable remap - it may cost a little more at the outset but you will avoid many of the pitfalls of running a high power remap all of the time by doing this and get the best of both worlds. Many people go for an off the shelf remap which are on offer all over the country and typically cost around $260-$600. call your local shop for the labour quotes. The next best option would be to tune the car on a load based dyno - that's a Mustang dyno, and I think the newer Dynojets can do the same. The advantage of EEPROM is that it is can be programmed in 20 seconds without erasing it first. The only correct way is to do the reprogramming on the dyno. Stick to reputable companies. The next best option would be to tune the car on a load based dyno - that's a Mustang dyno, and I think the newer Dynojets can do the same. Please get a true custom chip instead, programmed on YOUR unique car with its own combination of mods, on a dyno using a wideband exhaust O2 sensor/Air:Fuel Ratio meter. How come people say that the biggest injector I can run is 310 cc/min. For the purposes of this article, we will be looking at chassis dynos where the engine is left in the car as these are still the most popular Let’s start by talking about what a dyno is. A chip made for an engine slightly different from yours will be slightly wrong under some conditions. A stage 1 modification can be added in isolation. Once you have done this you have accomplished the ECU resetting. 2002 Nissan Maxima 3.5L V6 6-speed tranny I'm thinking of installing cat back exhaust and cold air intake only. EPROMs are like ROMs except they have a quartz window which allows the EPROM to be erased and reused. How do you think about the answers? The same things apply as above for the mail order chips. Doing this allows it to adapt itself to new parts and efficiently perform post modification also. Phone: (+61) 401 605 241 Make sure that the system will do what you require it to do. Atmel AT29C256). Of course the amount of power you choose has a bearing on the reliability and cost of running the car. Aftermarket ECUs are often direct replacements for the car's ECU and will take over all the functions associated with it. They are selling them based on the attractiveness of convenience for unsuspecting people who don't have a local programmer and dyno, the hyped hp gains from the magazine articles or ads, and a lower cost compared to other significant hp gain modifications, like cams or an intake manifold (IM). These were not designed for performance use and you will usually not get the kind of power required with factory hardware. First a basic beginners guide introduction into world of car tuning and what you need to know: The ECU of your car is like its brain. If you do not have a turbo there's very little to be gained by a remap alone - perhaps only a few BHP so TorqueCars' recommendation for non turbo cars is to modify everything else first (cams, pistons, increase compression, engine balance, air intake, exhaust, head work, bigger valves etc...) after these things have been done you can then consider a remap which will help you get the full benefit from them. Why an 'off the shelf' mail order ECU will disappoint: ...on most naturally aspirated engines operating on pump fuel, the only way to achieve tangible power gains is by increasing airflow through the engine. Talk to some people first who have used a certain chip and see if they are satisfied. Thats more then the 16,000 HUB NM the pro hub 4000 is Rated at. Not all values are stored as floats, there are also single byte values of 0-255, unknown if 16 bit integers are used. I'm just soliciting inputs from those of you that have done something similar, and interested in your results. In the long run, it will be cheaper for you to pick up a wideband, DSMLink and do it yourself. What do these ECU program's commands look like? Copyright © Then you have the 'sport' or 'power' modes which give lots of power and often require high octane fuel. Pick one and change to 8000 and see if you hit the RPM limit. Where can you take parts you want modded for your car to be put on? This image is the raw data from the ECU memory and is the application and Operating System code for the ECU. As a tuner, a … Mugen recognizes this and does not have a knock sensor (input on their ECU). ROMs are most suitable for the final tune for an engine, which is not going to be altered. Some maps use the cruise control to choose a map, other companies offer handheld flash devices which allow you to choose a range of maps and upload these. You should then feed in fresh data pertaining to the conditions that have come into existence post modification. There is a reason why there are no factory cars like this driving around your neighborhood. Typically these chips disable error reporting for most sensors and give about 40 % worse fuel economy. Parts List / Setup Details: It is always in the customer’s best interest to have a thorough and detailed understanding of the all of the parts in any setup and the details of the build. 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