[Joshinator99]

Originally Posted by KingLT1

That graph doesn't really apply here because it is showing the capabilities of the D1x when pullied for 20psi. The car in discussion here is a stock bottom end. It won't make it 2 pulls on 20 psi of boost. Pulley that D1x for 10psi peak and you will see the D1sc has a much flatter boost curve and would be all around a faster car.

The D1x is way too much blower for a stock bottom end car.

It's no different comparing the Maggie 2300 to 2650. Pulley both for 10psi and the 2300 makes more power under the curve. Pulley both for 15psi and the 2650 pulls away no contest.

Different size blowers exist for a reason. Anything under 850whp I would stick with a D1sc or P1x. They both are fairly close in capabilities, so it's kind of splitting hairs. Manual car I would probably opt for D1sc for the little bit more low end boost that it makes. Auto it doesn't matter as much.

Agree 100%

I always thought the advice from the late, great, John Lingenfelter was always sage: “Build torque in the RPM band at which the car will spend most of its time”. Since torque is simply airflow plus timing, it’s not hard to get where you want to go.