I need to make a shroud

[ATLPIMP]

After a burn-in period, my water cooling setup has been giving me higher temps. I feel that I need to make a shroud... and the maybe my fan is too weak. I've got an '86 Chevette core, with a Papst 55CFM 120mm fan. Right now, I've got my fan sitting about 1/2" off the core, with tape sealing it to the core. The temps are, of course, better than with the fan just on the core.

Is there anyone who made a shroud for their core, and would know what dimensions would do the best with my fan/core combo?

Here's what it's been like:

(If you can recall my last setup, with the rad at the top- temps were BETTER then)

 

[Eclypsyr]

http://www.overclockers.com/tips1022/index.asp
this should help

 

[Milkman]

Pm Maskedgeek, I think he has some dimensions/plans on one.

mamer

 

[ATLPIMP]

I just ordered some new stuff; I'm just going to go back to how it was.

Thanks for your time, both of you.