torn on choices

Contrary to popular belief, as long as your fuel and ignition components are in good condition, you'll be able to run 100-shot of nitrous worry free. Many, many are running as much, with a few running a bit more with absolutely no trouble. So blowing up your engine shouldn't be a concern for you. You're at no greater risk blowing up your engine with a moderate shot of nitrous than you are getting a bad batch of fuel and pushing things with a blower.

That being said, I've never considered Nitrous all that great for daily driving. Especially if the driver has as heavy foot. It doesn't take long for the well to run dry and it can get expensive.....as much so as the cost of a blower over a the course of a year or two.

As for which blower you should choose, that will depend on your budget and where you want to see your power made. Centrifugal set ups are by far the cheapest and will run with any comparable sized Positive Displacement blower on the street, or at the track. They don’t make the bottom end grunt that the PD blower will make, (and if that’s a really big deal to you, stick with a PD blower) but how much torque do you really need? The stock 260hp and 302lbs/ft the PI 4.6L is already tough enough to put harness on the street as it is. Is adding another 100lbs ft of torque right at the bottom end of the spectrum going to make it any easier to control? I think not!!!

Sure, the bragging rights of having all of that bottom end torque is nice, but unless you’ve set aside a good chunk of money to upgrade your tires and suspension to match, you’ll not reap the benefits of that added grunt by any stretch. As cool as tire smoke is to make, watching the other guys tail lights disappear in the distance while you’re buffing the ash vault isn’t exactly the place you want to be. The Positive Displacement blowers like a Twin Screw or Eaton based units are a nice set up to run and in the case of wanting to get a heavier and slower based vehicle like an automatic equipped convertible (or Mercury Cougar ) up and running, they work really well, but they’re a lot more money by comparison.

.....so keep all this in mind when you’re budgeting for one.