Gen V Swap, Slow Blower Boost

Hi Guys. I just recently completed my Gen V blower swap but have a few questions for any experienced swapping experts.
First of all, it seems that the boost and power are not as quick as my Gen III at lower rpms. Once the engine rpm shoots up, the blower is more powerful yes. Is this normal?
Next, I noticed the BBV mounting bracket is slotted to mount it higher or lower. Does it matter how it is mounted? What is the difference?
And, is a new tune recommended or beneficial for this swap?

I appreciate your help! Please advise.

First question is what are all of your mods? If you are running the same size pulley as the GenIII then there is the first issue...you've got to compensate for the more efficient supercharger that you've got...

Originally Posted by scottmmckinney

Hi Guys. I just recently completed my Gen V blower swap but have a few questions for any experienced swapping experts.
First of all, it seems that the boost and power are not as quick as my Gen III at lower rpms. Once the engine rpm shoots up, the blower is more powerful yes. Is this normal?
Next, I noticed the BBV mounting bracket is slotted to mount it higher or lower. Does it matter how it is mounted? What is the difference?
And, is a new tune recommended or beneficial for this swap?

I appreciate your help! Please advise.

The way i mounted my bbv, is i put the screws in almost snug, so the bracket still slides, then i opened the valve manually while completely opened, i then tightened the bolts snug, so the valve can open and close without getting binned up. Hope this helps.

Originally Posted by bluegtp91

First question is what are all of your mods? If you are running the same size pulley as the GenIII then there is the first issue...you've got to compensate for the more efficient supercharger that you've got...

These are my mods:
3.3" Modular Pulley System, Black Aluminum
Gen V Ported Blower Assembly
Ported L67 Throttle Body w/Billet Adapter
1.9 High Ratio Rocker Rocker Arms
Full Length Stainless Steel Headers
3" Catless Stainless DownPipe
Custom Fenderwell Air Intake System
Ported & Machined Lower Intake Manifold
Mezeire Electric High Flow WaterPump
Custom Throttle Body Heat Shield
MSD Coil Packs & Ignition Wires
Custom 160 Degree Drilled Thermostat
Autolite 104 Colder Heat Range Spark Plugs
Cometic High Compression Head Gaskets & ARP Studs
Gatorback Supercharger & Accessory Drive Belts
Custom Built Shift Kit & Accumulator Modification

Nice list...

Do you not have a tune?! That might be the issue right there

Originally Posted by bluegtp91

Nice list...

Do you not have a tune?! That might be the issue right there

I currently have a junky ZZP 1.0 PCM, but have an appointment with PRJ for later this month...

Originally Posted by scottmmckinney

I currently have a junky ZZP 1.0 PCM, but have an appointment with PRJ for later this month...

Yup...I'd be willing to bet that is the issue RIGHT there...

and by RIGHT I mean ZZP's POS PCM