Big block running too cold

J

jm88j

Member
I have an open 420 and i cant seem to get it to run hotter than 250 degrees. I have a solid shield on the shroud, and the timing is at about 34 degrees. It has an HR series tilly on alchohol. What will make it heat up more?
 
Why is 250 degrees to cold? One of the benefits of running alcohol is cooler cylinder head temps. Cooler head temps help us run more timing and compression. Cooler incoming air is denser.
 
jm88j said:
I have an open 420 and i cant seem to get it to run hotter than 250 degrees. I have a solid shield on the shroud, and the timing is at about 34 degrees. It has an HR series tilly on alchohol. What will make it heat up more?
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you can test your lead by dunking it in some boiling water. It's just a good idea to make sure you don't have a problem with it. If I remember right, water boils at 212 degrees.

From the desk of Al Nunley
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory. (Al Nunley)
 
alvin l nunley said:
you can test your lead by dunking it in some boiling water. It's just a good idea to make sure you don't have a problem with it. If I remember right, water boils at 212 degrees.

From the desk of Al Nunley
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory. (Al Nunley)
Click to expand...

This isn't a true statement.

Water Boil at different temperatures depending on altitude.
 
max said:
Why is 250 degrees to cold? One of the benefits of running alcohol is cooler cylinder head temps. Cooler head temps help us run more timing and compression. Cooler incoming air is denser.
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Well i was always under the impression that motors make more power at an optimum temperature like 350 degrees or something like that
 
alvin l nunley said:
you can test your lead by dunking it in some boiling water. It's just a good idea to make sure you don't have a problem with it. If I remember right, water boils at 212 degrees.

From the desk of Al Nunley
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory. (Al Nunley)
Click to expand...

i will have to try that. regardless of altitude water should boil in the vicinity of 212 degrees
 
jm88j said:
i will have to try that. regardless of altitude water should boil in the vicinity of 212 degrees
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that's not true. The higher the altitude, the lower the temperature where the water will boil. In the United States, it depends on where you live.

From the desk of Al Nunley
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory. (Al Nunley)
 
alvin l nunley said:
that's not true. The higher the altitude, the lower the temperature where the water will boil. In the United States, it depends on where you live.

From the desk of Al Nunley
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory. (Al Nunley)
Click to expand...

yes but i meant it will be close to 212. like if it says that boiling water is 100 degrees then iknow i have a problem but if it says 200 then its close
 
If it runs good leave it alone or get it dynoed.... They run nice and cool.... Mine has never reached 300 on alky even when it's hot out
 
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