[Spridgets] Rearden metal

[Dean Hedin]

It depends on the vane material used.

 

You have to calculate the thermal expansion of the iron housing through the
temperature

range you expect.  20 to 200F is reasonable in this case.

 

You then calculate the vane growth in similar fashion.

 

You then subtract the two and that is the cold clearance.

 

  _____  

From: WFO Herb [mailto:froggi60 at gmail.com] 
Sent: Sunday, December 16, 2012 1:09 AM
To: Dean Hedin
Cc: WeslakeMonza1330 at aol.com; spridgets at autox.team.net
Subject: Re: [Spridgets] Rearden metal

 

Dean,

What clearance between rotor & vanes?

Herb

On Sat, Dec 15, 2012 at 10:03 PM, Dean Hedin <dlh2001 at comcast.net> wrote:

I'm making two rotors for the Sprite Judson supercharger.

Pictures to follow.