Just trying to figure out what cfm the paxton novi 2000 puts out compared to the Kenne Bell.

I think KB rates the Lightning supercharger at a 2.3L. That means 2.3 liters of air pass through at each revolution. I was told the Novi 2000 passes 1700 cfm at 60K rpms.

28.32 cubic feet/min = 1 liter per minute

1700 cfm x 28.32 = 48,133.8 liters per minute(at 60K rpm)

so, 48,133.8 liters per minute is what the output of the Novi 2000 is when spun at 60,000 rpms.

2.3 liters per revolution x 20,928 rpms(9.5" lower and 2.5" upper and 5507.4 motor rpm) = 48,135 liters per minute(100%) efficiency)

so, the KB puts out 1700 cfm at 20928 rpms at 100% efficiency

I think the Novi 2000 is rated to spin up to around 60K rpms. The KB is rated to spin up to 13,000 rpms.

I have never spun either one as fast as the above calculations, but does anyone know how much discharge temps would be?

Please feel free to make comments or flame me if my calculations are wrong. I'll blame the error on the calculator.

 

Am I correct in the fact that the Paxton typically in application does not have or is associated with a vehicle that has an intercooler?

D-Day

 

Lower crank pulley sizes
2# ~ 7.90"
3# ~ 8.17"
4# ~ 8.50"
5# ~ 8.75"
6# ~ 9.00"
(above taken from a post by Rob_02)

So for the KB at 100% efficiency

2lb lower and 3.5" upper = 1008 cfm
4lb lower and 3.5" upper = 1085 cfm
6lb lower and 3.5" upper = 1149 cfm

2lb lower and 3.0" upper = 1176 cfm
4lb lower and 3.0" upper = 1266 cfm
6lb lower and 3.0" upper = 1340 cfm

2lb lower and 2.5" upper = 1412 cfm
4lb lower and 2.5" upper = 1519 cfm
6lb lower and 2.5" upper = 1608 cfm

 

I don't think paxton offers an intercooler on any of their systems.

 

Paxton makes a intercooler for there Mustang Kits. As far as needing a intercooler for your truck, a trick setup would be just a Hat to replace the stock blower. I have a Buddy making 400RWHP on a very conservative tune and 12lbs of Boost on a stock 2v Mustang. I made over 500RWHP on a Non intercooled Novi 2000, with the Stock Mustang Crank Pulley and a 3inch upper, I made 24PSI. I have a very good Friend who has a 4V 4.6 Mustang and Novi 2000, He makes over 30lbs Boost (Over Spinning Blower) and runs 8.60's@166 in a 3000LB Racecar. He has over 300 passes overspinning the blower and has never has a blower failure. The Combo has been dyno'd, I dont remember the exact numbers but I believe it was around 900RWHP. The Novi is a great blower and its very reliable, If you need a Bracket for the 5.4, Accufab makes them for the 4V and they might be able to help you with the 2V. While the KB might move same CFM, A roots blower produces more heat and a roots blower requires more HP to spin.

 

Paxton makes a kit for the 5.4 truck. I already have the blower and bracket. I just have to hook up the oil lines and bolt the braket and blower on.
I need to get some smaller blower pulleys. I only have a 3.75, 4.25 and a 4.0" For the crank I have a 7.9" and a 9".

 

I think the KB is a twin screw and not a roots blower. I wonder how much HP it takes to spin the KB 20000 rpms and how much heat it generates. I bet it is around 300° at least. There is no telling how much HP.

I wonder why Paxton and KB and all these companies don't post more data.

 

You need to call Paxton or a Mustang Speed Shop, they both sell blower pulleys in 3.25,3.125 and 3.0. I guess the trucks are really pullied down to have less boost, On Mustangs I believe the stock pulley is a 3.5". I also think the stock crank pulley is the same as the stock crank pulley on the Mustangs. Give Haywood Performance a call in Raleigh, North Carolina a call. He has alot of experience with Novi's

 

you mean like this.
here's a few mockups.