Thanks for the imput. Everything pertaining to my intake track will remain constant. The only variable will be impeller rpm. Increasing rpm will increase volume of air moved over time (cfm) and since no changes have been made to the intake track, boost or psi will increase too. I'm not exactly sure how to read this map. Can you read it, or does it make sense to you?

http://www.vortechsuperchargers.com/suppor...rim_v2_map.html

(If some one could post this pic it would be great.)

 

Sorry to join the discussion so late
I may have missed something but isn't the V2SQ's max impeller speed is 53krpm?

Anyway, max impeller speed doesn't always means max rated boost. It's often one way or the other, which ever is first.

I am getting 14 psi with a 3.8" pulley at 9.5krpm. If you take into consideration of belt slip I think my supercharger is at max impeller speed. I have an a custom plenum so this may flows better than stock.....so sideway is prob on the right track with 15psi.

 

My engine has 9.2:1 compression ratio and I am seeing double the stock engine's output. So with a 8.8:1 compression you prob get close to 400rwhp

 

I wonder why the techs at Vortech are saying the blower is good for 20psi of boost.

 

Keep in mind boost is amount of air being moved times the restriction. On a smaller engine 20PSI might be achieved at a much lower RPM.

 

I see what you're saying. When I spoke with the techs, they knew what blower I was using and on which motor. I wonder if they didn't take motor size into consideration.

 

You'll have a hard time keeping a 6 rib pulley from slipping over 15psi. A cogged belt drive won't slip, but you'll need a SC marked for HD use. The V2SQ is not rated to use a cogged belt.

 

I doubt boost would increase linerally, however the RPM to impeller speed does. Air will compress friction, etc... so I'm sure it will not increase 1:1.

***I was doing some thinking and you should not be shoorting for the max boost the blower will produce, you should be aiming for the max rpm the blower impellers will spin at.*** An effecient motor will decrease boost, but increase HP.

I also think you will need to upgrade the aftercooler, and go with a traditional front mount. I do not think the "power cooler" will be up to the task of decreasing intake temps enough. Even if the small water unit manages to avoid heat soak (which I doubt), I don't think there will be enough surface area inside the unit to decrease intake temps enough.

 

instead of using the belt system... whould there be a way u could convert it all to a chain drive system. so then u wouldn't have to worry about belt slipping, i have seen a few s/c b16a's like this running high boost under s/c

 

here is a correlation of the boost and speed from a
V2SQ on a F20C