Vortech Impeller Formula

Reply Subscribe

Thread Tools

Search this Thread

12-12-2007, 01:10 PM

Floridaboy1605

Registered User

Thread Starter

iTrader: (4)

Join Date: Dec 2006

Location: Harrisburg, PA

Posts: 259

Likes: 0

Received 0 Likes on 0 Posts

Vortech Impeller Formula

Hey guys just wondering what the formula was again!!! thanks for the help

Reply Like

12-12-2007, 01:35 PM

sentry65

the burninator

iTrader: (11)

Join Date: Mar 2004

Location: phoenix, AZ

Posts: 9,722

Likes: 0

Received 2 Likes on 2 Posts

[5.75/SC pulley] x [upper cog pulley teeth/lower cog pulley teeth] x [3.54 x redline rpm] = impeller speed

5.75" = crank pulley diameter
SC pulley = 3.33, 3.12, 2.87, 2.62 pulley etc
on original VQ35 kit: upper cog pulley = 32, lower = 28, I think it's different for the rev up kit
3.54 = step up gear ratio

Reply Like

12-12-2007, 01:38 PM

06MagneticZ

Registered User

iTrader: (13)

Join Date: Dec 2006

Location: Lake Balboa

Posts: 1,067

Likes: 0

Received 0 Likes on 0 Posts

Why would you need to know this?? Just wondering.

Reply Like

12-12-2007, 01:44 PM

sentry65

the burninator

iTrader: (11)

Join Date: Mar 2004

Location: phoenix, AZ

Posts: 9,722

Likes: 0

Received 2 Likes on 2 Posts

for figuring out how much the blower can spin to with your pulley vs redline relationship

Reply Like

12-12-2007, 02:25 PM

Floridaboy1605

Registered User

Thread Starter

iTrader: (4)

Join Date: Dec 2006

Location: Harrisburg, PA

Posts: 259

Likes: 0

Received 0 Likes on 0 Posts

Yeah right now i have a 34t js cog 28t sc and a 2.62 but i think i might downsize the js cog to a 32 and then i will only over spin the charger 3000 rpms which cant be to bad

Reply Like