How hot is too hot?

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How hot is too hot?

Postby h-bot » Tue Sep 04, 2001 6:04 pm

From: thelil75thatcould_REMOVE_517499_THIS_@yahoo.com


What would be the highest temperature that a 350
could be run at continuously without risking a blown
head gasket or a cracked head keeping in mind that the
engine gets about 10-15 degrees hotter immediately after
shutdown?


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How hot is too hot?

Postby h-bot » Wed Sep 05, 2001 2:01 pm

From: twelve_second_vega_REMOVE_742773_THIS_@yahoo.com


The increased temperature you refer to when the
car is hut down is called 'Hot Soak.' It has no ill
effect on the car and you have no control over
it.

Everyone seems to like running their engines hot.
Many claim an engine will make more power if you run
it hotter. I for one have always ran them as cold as
possible. 155° while driving is what I shoot for.


If engines make so much more power hot, why do all
the performance chips come with 160° thermostats? I
never use a thermostat. never have.

In response
to your question, I think 240°/250° continuous would
be the limit on a safe temperature for a SBC.
However, you can bet 'Hot Soak' will approach 275°/280°
and the car will most likely belch out most of the
coolant.

I would try to run it cooler, maybe in the
180°/200° neighborhood for longevity...Robert


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How hot is too hot?

Postby h-bot » Wed Sep 05, 2001 4:44 pm

From: billy_b_85222_REMOVE_800322_THIS_@yahoo.com


I agree with Robert on the 180-200 degree
range.Thats where I run my wifes malibu and we have a/c on
the crate motor and we live in AZ!!!!!On those 120
degree days with the a/c on the max it gets is 210 and I
watch it very,very closely!!!Run the 3-4 core radiator
and follow Roberts advice on the waterpump
modifications with the best fan set up you can find! Good luck!
Bill@GM HIGH PERFORMANCE.


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