What would this turbo be best for?
ok got it, the VE table and associated rpm! Of course! I assume that either manufacturers or experience allows you these numbers? You've already answered all these question iam sure but iam a slow learner sorry! Wow you really have quite a grasp on these subjects, impressive! Where are you and are you involved in motor sports? Ok so if you have any more patience, how are you meant to interpreate the final graph on the page that helps tune turbine size? Pvc went over my head. Will research lol! Thank you for your time it is greatly appreciated!
As to the turbine, it will help if you read some online articles. search for "turbine expansion ratio" here is one
http://www.motoiq.com/MagazineArticl...p-Details.aspx
Larger turbines require more exhaust flow to reach the same compressor speed as a smaller turbine, so spool slower. The benefit is reduced exhaust gas pressure, so the engine can make VE easier.
....
As the compressor gets larger, it may start to look better as the data points move closer to the center and adiabatic efficiency improves. This is not my goal because it will add unnecessary mass to the rotating components of the turbocharger, slowing response and spool character in my daily driver. I desire a turbo which will run close to the far edge of the map, similar to the way many OEM toyota/Nissan turbos will if pushed towards the high mileage, stock bottom end limitations of the engine it was designed for.
As the compressor gets larger, it may start to look better as the data points move closer to the center and adiabatic efficiency improves. This is not my goal because it will add unnecessary mass to the rotating components of the turbocharger, slowing response and spool character in my daily driver. I desire a turbo which will run close to the far edge of the map, similar to the way many OEM toyota/Nissan turbos will if pushed towards the high mileage, stock bottom end limitations of the engine it was designed for.
http://corner-carvers.com/forums/showthread.php?t=2458
My question starts at post #20.
Andrew
The best post in that thread was made 14 years ago and underlines the theme for this thread
http://corner-carvers.com/forums/sho...0&postcount=12
http://corner-carvers.com/forums/sho...0&postcount=12
Originally Posted by P-51
Choose your target horsepower.
Choose the smallest turbo that will get you there.
Most drag race guys complain that "you'll want more power later" "Boost is addictive, you'll want more", etc... They choose big ****** turbos that could power a Kenworth, and then drive it with a tiny engine, with no response, and brag about how much power they COULD be making if they turned up the boost and ran rocket fuel.
Just set your goals, and pick the smallest turbo that will get you there. You'll have the best response and drivability that way.
Choose the smallest turbo that will get you there.
Most drag race guys complain that "you'll want more power later" "Boost is addictive, you'll want more", etc... They choose big ****** turbos that could power a Kenworth, and then drive it with a tiny engine, with no response, and brag about how much power they COULD be making if they turned up the boost and ran rocket fuel.
Just set your goals, and pick the smallest turbo that will get you there. You'll have the best response and drivability that way.
