junkyard 396ss coolant advice

[James Northrup]

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 The pulley is stock, i have no doubt.  the same for the crank pulley.  the ratio of size looks closer to 1:1 than anything else, though im positive the water pump is slightly smaller.  the belt is tiny, it only spans 6 inches or so (iirc).  
I also still have the shroud, and again, though I have requrested numerous times that I'd like the shroud on with the new electric fan, looks like I'll have to take care of it myself.  the existing fan was nothing but noise, no clutch.  the fan roar exceeded the open holley and loud exhaust combined.  perhaps that much air made up some ground against the 2-core?  it seemed completely overkill.
  David Hunt <bamainc at home.com> wrote: Just a note, too fast causes cavitation and is a worse problem than too slow
because the water pump is heating the water as well as the engine. Use the
stock fan ratio and you'll be okay in the beginning.

dh

> This would be a really good start! The other thing you want to do is be
> sure that the water pump pulley to crankshaft pulley diameter ratio hasn't
> been dorkomaticked by this jerk! If the water pump isn't turning fast
> enough, it ain't gonna cool properly.


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<P> The pulley is stock, i have no doubt.&nbsp; the same&nbsp;for the crank pulley.&nbsp; the ratio of size looks closer to 1:1 than anything else, though im positive the water pump is slightly smaller.&nbsp; the belt is tiny, it only spans 6 inches or so (iirc).&nbsp; 
<P>I also still have the shroud, and again, though I have requrested numerous times that I'd like the shroud on with the new electric fan, looks like I'll have to take care of it myself.&nbsp; the existing fan was nothing but noise, no clutch.&nbsp; the fan roar exceeded the open holley and loud exhaust combined.&nbsp; perhaps that much air made up some ground against the 2-core?&nbsp; it seemed completely overkill.
<P>&nbsp; <B><I>David Hunt &lt;bamainc at home.com&gt;</I></B> wrote: 
<BLOCKQUOTE style="BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">Just a note, too fast causes cavitation and is a worse problem than too slow<BR>because the water pump is heating the water as well as the engine. Use the<BR>stock fan ratio and you'll be okay in the beginning.<BR><BR>dh<BR><BR>&gt; This would be a really good start! The other thing you want to do is be<BR>&gt; sure that the water pump pulley to crankshaft pulley diameter ratio hasn't<BR>&gt; been dorkomaticked by this jerk! If the water pump isn't turning fast<BR>&gt; enough, it ain't gonna cool properly.<BR><BR><BR>----------------------------------------------------------------------------<BR>To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)<BR>in the body of a message (not the subject) to majordomo at lists.diy-efi.org<BR></BLOCKQUOTE><p><br><hr size=1><b>Do You Yahoo!?</b><br>
Make <a href="http://phonecard.yahoo.com/">international calls</a> for as low as $0.04/minute with Yahoo! Messenger.
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