Not quite, a good mod for a centri, but this just lets you get to full boost a little bit before redline instead of at redline.
As soon as the turbo is spooled, its full boost all the way up to redline.
So basicly when a centri is just starting to build a few lbs of boost , a turbo is at full boost.
Not quite.
First let me say that yes, a turbo will make more peak power (and torque) at the same boost as a centri. I love turbos, I've had several turbo cars, and they really do out-power (peak #'s) just about every power adder out there, boost for boost.
The only thing turbos don't have, which is what my "problem" with them is, is power under the curve. They're either on or off. You have virtually nothing under 3500 rpm for hp/tq. You're either waiting for boost, or you're spinning tires. There really isn't an "in-between."
Now, I'm running an F1C, wastegated. I see full boost (14lbs) by about 4500 rpm (results may vary depending on your target boost pressure and altitude). I have 6 lbs at 2500, and 9 lbs by 3500. The car PULLS from 1500. It's not tire spinning torque down low like a roots type blower, it's more linear and smooth. It doesn't hit like a turbo either.
However, because I'm spinning the blower that hard, at lower boost (14 lbs is low with a pullied down F1) it doesn't make killer numbers up top. My hp and torque really fall off around 6200, simply from the HP it takes to spin the blower that hard. But, if I run a larger pulley and slow the blower down, I lose more of the low end torque but gain my upper RPM power back. So I can "tune" my power band depending on which pulley I run, and peak boost is always the same based on my wastegate setting. This is mostly because I'm running a large, very capable blower. A D1 probably won't be as effective, at least at my altitude (5000 feet).
So, in the world of "this power adder is better than that power adder" I'm certainly not going to say one is better than the other as I beleive they all have their place. But I feel my setup is a NICE compromise between them all. Plus I get the pleasure of listening to that F1 sing at just about every RPM, especially idle.
Anyway, there's my .02.
My suggestion, decide what type of power-band you want, what hp number you're looking for, what type of driving/racing you're going to be doing the most, and then look at which power adder fits those needs the best. And maybe go for a ride in each if you can.
