Which turbo?

OBS F350 · Jun 21, 2013

JD_MILLS said:
My ultimate goal is to get as close to 650-700 without breaking the bank. I read few things today including the link you provided about swapping the low pressure over to the 72mm and changing the wheel out on the high pressure. not sure how well that would work but still somewhat leaning towards the single

The 72mm atmo would be the way to go for your goals IMO. Still will have great spooling, probably close to stock. No smoke, can tow anything you want. But if your goals are going to change in a year and you want to make like 800-900 and want to do it as cheap as possible the single kit would probably be the ticket. If you're firm on the 650-700 the 72 or tow powers are going to out shine the single in almost every situation.

JD_MILLS · Jun 21, 2013

What could I expect from just replacing the low pressure with the 72mm? If I wanted more later can the high pressure be upgraded by itself or would it require replacing both?

jdgleason · Jun 21, 2013

JD_MILLS said:
What could I expect from just replacing the low pressure with the 72mm? If I wanted more later can the high pressure be upgraded by itself or would it require replacing both?

Mine made 694 on stock fuel with a 72. It was a blast on the street. You can upgrade the high pressure later on by itself.