09-25-2010, 05:18 PM
(This post was last modified: 09-25-2010, 05:19 PM by 71fastback.)
Well, the beast is up and running after the cam swap. She sounds great! The timing might be a little off due to the fact that I can't view the timing pointer. Also, she runs hot when it sits idling for too long. Maybe a fan shroud would help. Any ideas?
71 Mustang fastback
Fan shroud would definitely help.Are you running an engine fan or electric?And at what temperature is your thermostat rated for. I was told the thermostat should not be over 180.
09-25-2010, 05:27 PM
(This post was last modified: 09-25-2010, 05:28 PM by 71fastback.)
I think my thermostat is rated at 192 degrees if Im not mistaken. I'm running an enine fan, no electric.
71 Mustang fastback
then a fan shroud would really help you on the over heating. And I should of asked this in the previous reply how many blades does your fan have.Try and get at least a 5 or 6 blade fan, and in this situation bigger is better just make sure it clears the shroud.
I'm told, because i haven't had it on the road yet, that my mustand reads that it overheats at idle also. I was told it was the aluminum intake manifold transferring heat to the temp unit too efficently, but like i said i haven't drivin it yet so i'm going by what the previous owner said.
If you are using anything more than a four-blade fan you DEFINITELY need a shroud.
It is also important to ensure that approximately half of the fan extends beyond the shroud.
Hope this helps.
after talking to a rad guy he steered me away from aluminum rads and got me into a re-core using a high efficiency core. aluminum doesn't transfer heat well like copper or iron. It is super-light which is why the after market loves them. for shear cooling, transfer of heat, copper is much better.
the effects are amazing. Standard 3 row core aftermarket rad kept my temp gauge high in traffic, this was with a 7 blade fan and shroud
after i switched to an original case which fit a 2 row with a high efficiency core my gauge rarely went above half, again same blade, but i changed the shroud to a ford OEM to fit the original rad.
then later i added a shroud extension piece that originally came with A/C cars and my gauge dropped down from a 1/8 to a 1/4 even when it was 97+ degrees out.
that was a shocker to me, that a little 2" by 30" piece of plastic could make that much of a difference but it did.