29 degrees probably will work for most of the higher HP settings. 23 degrees of total timing setting is a good all around setting for the lower HP settings.ģ. Never exceed 1900 bar with your max pressure option.Ģ. Here are my suggestions with your Ultra finding the sweet spots.ġ. Too little timing will cause the engine to feel a little lazy and will causes excessive smoke on acceleration. Way too much timing will make your engine feel like its in a bind along with the pinging. So how can you tell where you are at with your truck? A little too much timing may cause some pinging or rattling much like poor gas in a gasoline engine. Now keep in mind that there many many things at play I'm not mentioning here. Mileage will be its best at that point and EGTs will be at their lowest ( referring to a highway cruising load and speed). then you have an engine that runs at peak efficiency. When the timing is perfect and it matches up precisely with the pressure and duration. Too little and you'll have the fuel shot chasing the piston downward trying to catch up. Too much and you'll literally have the engine fighting against itself trying to run backwards creating way too much cylinder pressure. Injection timing needs to increase with duration in order to keep the burning on top of the piston at the critical time around top dead center to work with the mechanics of the engine itself. Low pressure/high duration will make the engine more smokey and requires more timing advance to run properly. Too high of pressure can the blow the relief valve or even worse, blow an injector head off! Lower pressure does just the opposite. Higher pressure atomizes the fuel spray better which makes it more the fuel shot more volatile. Higher pressure delivers more fuel in time than lower pressure. So.as pressure goes up, the injector needs to open less amount of time (shorter duration) to deliver the same amount of fuel as it would have needed be at a lower pressure.Īs mentioned above, injection duration will change as pressure changes at the same fueling command. X amount of fuel is delivered by the injector being open Y amount of time at Z amount of fuel pressure. The 6.7 Cummins will want X amount of fuel to maintain a certain amount of work output. Injection timing: the time of the start of a injection event, measured in crankshaft degrees relative to top dead center on the compression stroke. Injection pressure: fuel pressure present in the common rail. Injection duration: the amount of time the fuel injector is open spraying fuel. "For now let me give you guys a little bit of tuning 101.ģ main things with fueling that effect power and efficiency. View some examples for yourself at and find out why “BORLA® Exhaust” has become one of the web’s most popular automotive search terms.I copied this from someone else hope it helps. With our patented XR-1® technology present in our ATAK®, S-Type, and Touring systems, customers can pick the sound level desired with the confidence that their aftermarket exhaust system will increase power to the greatest degree. Each aftermarket exhaust comes with the maximum horsepower and torque available throughout the entire RPM range. Superior Performance Exhaust Soundīorla offers performance exhaust systems with a variety of sound levels to ensure your experience fits your specific needs. Whether it’s a performance exhaust system for a Corvette, Mustang, Camaro, Porsche, BMW, Volkswagen, Audi, Jeep, F-150, Silverado, RAM, Subaru, Mini Cooper, Challenger, Charger, Scion, Toyota, Kia, Infiniti, Nissan, Honda, other application we offer, you can be sure the muffler technology has been catered to the year, make and model of your specific vehicle. Our patented and race bred muffler technology consistently provides the finest sound enhancements and performance exhaust system capabilities because every system incorporates performance mufflers designed specifically for each application. Exhaust Manufacturer Who Delivers the Perfect Product We will support you well beyond the day you purchase a Borla performance exhaust system. ![]() ![]() ![]() Our million-mile warranty, which is the most comprehensive of any exhaust supplier, means Borla will stand behind your performance exhaust product longer than you will be driving your car and that’s a commitment you can depend on. Million Mile Warranty for Exhaust Systems, Mufflers & Headers Borla Performance remains the world’s leader in upgrades for performance exhaust systems. For more than three decades, hundreds of other exhaust suppliers have attempted to copy our winning formula, but haven’t come close. Leader in Performance Exhaust Systems & InductionĪs the originator of aftermarket performance exhaust systems, Borla Performance products are unique in three ways: They are made from exotic materials, such as stainless steel, titanium and carbon fiber they come with a warranty that outlasts a vehicle’s life and their muffler design allows for a bolt-on and easy fit.
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