Originally Posted by colo_dually
Got a question for you on these Adrian (now that you have me considering a Stage 2, with the way that one looks in the pic)?
What would your estimations be airflow wise with the Hybrid and Stage 2 - Billet Wheels?
Which is going to be a better towing match for stock injectors, by your estimates?
How much of a difference is going to be made with the Billet Wheels, by estimate?
How much whistle are you looking at with these things, with a 13 blade turbine?
(Note, finally heard the '03 turbo, and a Powermax scream this past weekend, I'm not a huge fan.)
These are some wierd and unrealistic questions that you are looking for answers on. IMO, based on the lack of information on actual flow numbers with billet wheels (batmowheels), here is what I would expect for a billet wheeled Stage 2.
I would expect (at the worse) the same amount of air flow as the cast wheel but due to the lighter weight, the turbo would spool quicker and be more responsive. Enough to notice?? IDK
For stock injectors the billet wheeled Stage 2 WILL work for towing just as well as every other turbo that has been ran with stock injectors and used for towing (including the stock turbo).
I would estimate gains similar to the gains noticed in the batmowheels for the stock and powermax turbos (i.e. increase in torque and lower EGT numbers with no real peak power gains).
There may be slightly more intake whistle (emphasis on the word MAY) due to increased air flow, but there wont be any more exhaust whistle than what you see with a 04-07 powerstroke turbo (13 blade) and with the increase in air flow over the stock turbo there will most likely be even less whistle (a characteristic we have noticed with several Stage 1 and Stage 2s).
Hope this helps.