Oh there is no doubt it will work and make good numbers.

 

My 5.3 with a 2300 is stout.

 

Yeah, a blown 5.3 with stock cam, stock converter, and 3.42's (I think) cutting 1.8 short times is NOT lacking on the bottom end in my opinion. And with the larger blower, it shouldn't taper off quite as much in the higher rpm as it can sometimes with the smaller blowers.

 

If I run a 1900 at 8lbs and a 2300 at 8lbs, I'm assuming no difference, correct?

 

Think volume & efficiency rather than psi.

10 psi with a ProCharger P1SC is considerably less power than 10 psi with a ProCharger D1SC. I believe the same thing would apply here, if everything else was equal.

 

Prochargers also have completely different compressors between the two where as the TVS uses the same rotors just the 2300 is longer. Aren't the P1 and D1 wheels quite a bit different?

 

Yes, they are. I just didn't have another analogy off the top of my head.

But I believe what I said to be true, even though I haven't had the opportunity to upgrade somebody's Maggie & have before & after numbers.

 

You are correct, and 2300 will move more air than a 1900 at the same blower rpm....

 

Go with the 2300 and have no regrets. Trust me.

 

If you are sure you will not run more than about 12 psi, the 2300 would be a waste of money. Would be like putting a 88 mm turbo on a 5.3 and running 8 psi.