Im a complete n00b at tuning, but ive read as many of the faqs and basic howtos as i could find on here. Our goal here at is to show you just how great of a fuel ethanol can be. Gm racing set idle at 1800 rpm, and if you punched it quick, the unloaded engine would blow completely through the 10k revlimiter in less than a. Secondly, any dyno shop in your area that regularly deals with domestic v8 tuning has the equipment to tune your ecotec.
Dec 17, 2010 the lsj has a different number of bolts that mount the flywheel to the crank than the l61 or le5. Chainlinked to trouble i am working on a 2009 chevy cobalt that has a 2. Gm ecotec are popular tuning projects and with carefully picked sports modifications like a remap, turbo upgrades and camshafts you will dramatically maximize. The engine produces 142 poundfeet of torque at 4,400 rpm. It was so popular that general motors began regular installations in its top selling vehicles in the mid 2000s. Guide to tuning the ecotec engine from gm torquecars. Tuning tips for the gm ecotec engine july 5, 2009 by christopher nagy in the last half century, the performance pride of general motors rested in chevrolets small block v8 as street, hot rod, and racing communities enamored themselves to the incredible flexibility working with the small block design. This harness and computer are for a stock or nearly stock 2.
Well, i prefer pictures over text but that is the way i learn best. Registration required to view the forum attachments. Advanced tuning takes enginetuning techniques to the next level. So you picked up a lsjpowered delta on the cheap and you want to throw the chevrolet. Its a great engine for many applications and turn key engine supply offers a productiontrim ecotec 2. This is where the tuning process gets a bit pricey. Our new werksracing lnf long block engine assembly is comprised of the latest in engine building technology and werksracing development products. The chapters are well planned and contain a wealth of detail, tables, and calculation methods. I used roger thelins kit to mount the engine, and alpha fabs engine and ecu to run it. Alpha motorsports ecotec line of engines include the alpha 2. After going through several books and reading many long hours worth of posts i decided to find a local expert.
Gm racing ecotec engine birth of the ultimate import. I have full bolt ons and currently have a trifecta tune i will soon get rid of. There are also variants of the block which use saabdesigned heads and are turbocharged for use in saab cars. Ecotec performance build book 88958728 crate engine depot.
The most common aftermarket application of the ecotec is an openwheel desert racing class known as class 10, which similarly equates a to formula 3 road race car. The le5 ecotec is drivebywire, so installation of an electronic gas pedal is required, and again, this is identical to the unit used with the ls v8 swaps. Werksracing lnf long block assembly lnf ecotec available options. Im hoping to do a e78 cruze tuning guide once i mess around with. So far here is a pic of the engine with the intercooler mock up o. Detailed insturctions on engine removalreinstallation. Jun 01, 2006 according to ed groff, assistant chief engineer of the ecotec turbo. The customer brought it to us because it had overheated. General motors engine guide, specs, info gm authority.
The information in this book is compiled from the experiences of gm racing engineers in the sport compact racing series. Mounting is straight forward, and because the ecu is easily tuned, any lag or vagueness associated with drive by wire throttles is completely eliminated. This is the most comprehensive efi tuning and calibration book available and that is why it has sold in 36 countries worldwide and is used as the efituning textbook by technical schools such as school of automotive machinists and studied by students at lincoln tech and. A reputation for performance, durability and adaptability has made the ecotec the smallblock of fourcylinder engines. Cam drive hardware to accommodate thicker gasket arp cylinder head stud kit intended for early model. This is a speed density system so it does not require the use of a mass air flow sensor it does use an o2 sensor.
Ecotec performance and solstice build books pontiac. While these engines were based on the gm family ii engine, the architecture was substantially reengineered for the new ecotec application produced since 2000. Here the owners of these brands can come together on a common ground. Thanks for doing this, even though i dont own an lsj, i appreciate your work. Ill attach a log but i am seeing up to 5 degrees of knock retard at points and constant knock throughout each pull. You should use a port injected ecotec like the le5 or lsj not the gdi lnf. Chevrolet performance 19177026 chevrolet performance 2. Jan 22, 2014 this was a customer build that went to california, offers easy no hassle installation kits for the 2. Your engine and every hp engine kit is different, so we cant tell you an exact hp figure, however we can say that for na engines we usually see an increase of about 40 hp min. General motors hybrid propulsion systems gm hp5 electric hybrid propulsion system gm 1. They can more easily make bigger power with a big turbo. Dec 16, 2019 ecotec power is an enthusiast organization dedicated to the ecotec engine, and the vehicles they power. Solo street race exhaust, catless, le5 throttle body, zfr 6758, custom cai 307whp on dyno dynamics stock turbo 21 psi 463whp454wtq efr 6758 2627 psi,100 octane tuned by me 2006 sly 2.
It uses technology based on gms other fourcylinder direct injection applications, but with unique features designed for its specific application. This was a customer build that went to california, offers easy no hassle installation kits for the 2. Mar 05, 2002 the new turbo ecotec was definitely responsive. The le5 was the midlevel engine to the cobalt, found in the sport and naturallyaspirated version of the ss, along with the. This engine puts out 195 hp at 6400 rpms and 185 ftlbs of torque. The jbody organization, is the worlds largest automotive enthusiast group exclusively geared towards the general motors gm jcar platform including the chevrolet cavalier, pontiac sunfire, pontiac sunbird, pontiac j 2000, oldsmobile firenza, buick skyhawk and cadillac cimarron.
Designing and tuning highperformance fuel injection. Picking up where the ld9 blower kit leaves off, is a trio of stage kits from chevrolet performance for your 20042007 saturn ion red line and 20052007 cobalt ss supercharged. Utilizing many authentic gm parts and accessories, this kit is easy to install and has that factory equipment fit and finish. Werksracing lnf long block assembly, performance autowerks. Sure enough i found a person with a great knowledge and familiarity with hptuners and tuning gm engines. The controller is a mefi 5 unit and is tuned for sequential fuel injection for easy starting, smooth running and great economy. I understand there were some pcm issues with the early cars that makes it somewhat difficult to release a single tune, but look at some of the threads and. Feb 20, 2012 this is where the tuning process gets a bit pricey. It is a musthave for tuners and calibrators and a valuable resource for anyone who wants to make horsepower with a fuelinjected, electronically controlled engine. There are over 100,000 miles on the chassis, so the powertrain warranty has expired.
Getting ready to do the swap from the l61 to le5 intake manifold along with lsj injectors. According to ed groff, assistant chief engineer of the ecotec turbo. This engine is reliable and makes great horsepower. Modern engine tuning achieves this end, and presents engine tuning as an art as well as a science. Secrets of sealed ecotec engines with danzio performance. Cam drive hardware to accommodate thicker gasket arp cylinder head stud kit intended for early model engines that feature oem forged connecting rods, as found. This is the most comprehensive efi tuning and calibration book available and that is why it has sold in 36 countries worldwide and is used as the efi tuning textbook by technical schools such as school of automotive machinists and studied by students at lincoln tech and. Comp cams has released a new line of performance camshafts for gm ecotec 2. The information in this book is compiled from the experiences of. There are only 8 wire connections between the gm harness and the car. Comp cams ecotec cams improve horsepower and overall performance for this increasingly popular sport compact application without compromising engine durability.
Many gm brands use this flexible powerplant, including chevrolet, holden, oldsmobile, opel, pontiac, saab and saturn. Tuning for the le5 intake manifold swap tuning forum j. Hey everyone, im new to the forum just picked up hpt pro for my 2006 cobalt ssna with the le5. Direct injection technology works well with turbocharging and helps deliver a great balance of. Designing and tuning highperformance fuel injection systems. Gm sport compact performance build book motionlabtuning. The gm ecotec engine, also known by its codename l850, is a family of all aluminium. Ecotec horsepower capabilities of the ecotec v6 page. All external components listed in the base package below are brand new. Alpha ecotec engines can be used as rebuilds, replacements, and swap option. This engine family replaced the gm family ii engine, the gm 122 engine, the saab h engine, and. There was a lowpressure, lowinertia turbo that was extremely efficient and put out 175hp195lbft, and then a high pressure turbo which puts out 210hp and quite a bit more torque. For an owner or tuner that has never tuned an e85 vehicle it can be a frustrating experience.
Im unsure if the lnf is similar, but a flexplate from a l61 and le5 will not work. Just slap parts on it for big power instead of the complex computer problems that we are having with the lnf. Step by step guide to boosting the horsepower and torque in this versatile four cylinder power plant. This engine builders handbook with over 100 pages of detailed parts and procedures describes all of the parts needed to transform your stock ecotec engine into a high performance racing engine. Special instructions on installing stage 1 and stage 2 upgrade kits. The gm ecotec engine, also known by its codename l850, is a family of allaluminium inlinefour engines, displacing between 1. The le5 and l61 use the cast crank 6 bolt and the lk9, lsj and lnf use the forged crank which is an 8 bolt. The only info i have right now is that the are stock 3. The ecotec engine has progressed through a few different itterations over the years, varying in displacement and other features. Direct injection technology works well with turbocharging and helps deliver a great balance of power and economy. Its a great engine for many applications and turn key powertrain offers a productiontrim ecotec 2. Tuning e85 vehicles steps to properly convert a car to ethanol. Using hptuners, what are the minimum changes required to make sure i dont blow the engine.
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