Since this is a special case and there are so many ways to go about an ultimate power diesel application, it is not possible to cover it adequately in this article.
The resources our engineers have created in these pages will help guide you through the process.Boost adviser is a program that is designed to help you select a turbocharger that meets your horsepower and engine requirements. The first step is to read the This example will be for the Daily Driver/Work Truck/Tow Vehicle category. Add a Garrett turbocharger to minimize the lossThe amount of power that a diesel engine makes is directly proportional to the amount of fuel injected into the cylinder and that fuel needs sufficient air for complete combustion.
If a turbo is too large for your engine, you will have a lot of turbo lag, and if a turbo is too small for your engine you may not reach your horsepower target. Boost Adviser. Under these conditions, the stock turbo is running on borrowed time.With an upgrade turbocharger selected to compliment the extra fuel, smoke is drastically reduced, EGT’s are under control and, since the turbo is operating in a more efficient range, horsepower and drivability are enhanced. The extra air and lower backpressure provided by the upgrade turbo will lower EGTs, allow more power with less smoke and address durability issues with the stock turbo at higher boost pressures and power levels. This is a situation where one turbo feeds another turbo, sharing the work of compressing the air across both compressors.
Generally speaking, the proper turbine housing is the largest one that will give acceptable boost response on the low end while allowing for more optimal top end performance.This information should be used as a starting point for making decisions on proper turbo sizing. (Technically, the engine could probably easily make this power with the previous compressor, but it would be at risk of more smoke, higher EGT’s and backpressure; kind of like pushing a stock compressor too far…)The next larger turbo is a GT4094R and is shown below.Another option that could also be considered is the GT4294R which has a slightly larger inducer compressor and the next larger frame size turbine wheel.The larger wheel inertia’s will slow down the response a bit, but provide better performance at the top end of the rpm range.For the next example, let’s look at the Extreme Performance.
Turbo Calculator: How to Match a Turbocharger to Your Cars Engine Matching the right turbocharger to your engine means understanding the horsepower to airflow ratio. Because this will be a mild upgrade, boost response and drivability will be improved across the board.I have a 6.6 liter diesel engine that makes a claimed 325 flywheel horsepower (about 275 wheel horsepower as measured on a chassis dyno).
A smaller A/R will help the turbo come up on boost sooner and provide a better responding turbo application, but at the expense of higher back pressure in the higher rpm zones and, in some cases, a risk of pushing the compressor into surge if the boost rises too rapidly. Since turbochargers are sized by how much air they can deliver and airflow is proportional to engine power, a realistic horsepower goal is critical to make the right choice.The concept of a realistic goal needs to be stressed in order to ensure maximum performance and satisfaction. By providing your email address, you will be unsubscribed from all marketing communications* from Garrett Motion Inc. and its affiliates and subsidiaries. On May 24, 2018, we published an updated *Marketing communications refers to communications about offerings, news and events, surveys, special offers, and related topics via telephone, email, and other forms of electronic communication (e.g., communications through social media platforms).If you are a current customer, you will not be unsubscribed from transactional and other non-marketing communications, such as communications containing important information related to a product or service you have purchased.If you would like to unsubscribe from all marketing communications from Garrett Motion Inc. and its affiliates and subsidiaries, *Marketing communications refers to communications about offerings, news and events, surveys, special offers, and related topics via telephone, email, and other forms of electronic communication (e.g., communications through social media platforms).If you are a current customer, you will not be unsubscribed from transactional and other non-marketing communications, such as communications containing important information related to a product or service you have purchased.
This can usually be seen on an engine with a performance chip (at the highest power setting) and maybe an intake or exhaust upgrade.
It also guides you to the nearest distributors who you can contact to refine your selection.