<VV> A Tale of Two Fans

[Matt Nall]

I may be wrong on what FAN  I have from my Wayne 100  marine 
conversion.....IF I ever get home I'll check and take a picture....the vanes 
are angled?

With THIS  fan  and a custom by Horning  Fiberglass shroud [ see pics at the 
Corvair  Boat Center]  versu a Mag fan with vantes trimmed to clear this 
shroud...

AT IDLE....the difference is tremendous....

The Wayne 100 engine / carbs, etc are ALL withing a compartement...ALL  air 
goes thru the fan.....

The original fan makes so much PRESSURE / flow that the carbs would leanout 
above 4000 rpm....and temps [ 2 thermisters ] would climb rapidly..

With the Mag fan....no problem...

In comparison.... the original fan at 5500 rpm has enough force to knock me 
back when opening the engine  cover!

The Mag...just slight pressure...

Note:  How did I determine the fan was causing the high head temps?

When I opened the cover my ladyfriend was watching the head temps ...as I 
picked myself off the floor next to her [ she was driving / piloting]

She told me " at least the temps are going down!!"

Matt Nall
All Vairs!
http://members.aol.com/patiomatt
Lots of Corvair Technical info!

----- Original Message ----- 
From: "Ron" <ronh at owt.com>

> And the results you noted below agree reasonably well with the GM results 
> on mass air flow quoted in your book, The Classic Corvair, so there really 
> isn't much to dispute.  There also isn't enough difference between the 
> three impellers to get excited about.