Offshoreonly.com - Ring end gaps

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Quote:

Originally Posted by sutphen 30 (Post 4270396)

thermostat is really flow control,on the street you need the water/antifreeze to slow down going thru the radiator so it can tranfer to the fins.

So if I take the thermostat out of my car it will run too hot because the thermostat isn't there to slow it down through the rad?

Quote:

Originally Posted by ICDEDPPL (Post 4270384)

We`re just talking here Joe, I`m pretty sure Tom got his answer so why not discuss something that came up during this thread. You refer what works for you but because it works for you doesn`t mean it works for everyone or every combo.

I have a milkshake that forms at the top of my heads where the cold water exits the block. It got way better at LOTO where the water was warmer. Wonder if that would still be the case if the block had some heat in it.

http://33outlaw.zenfolio.com/img/s10...44665659-3.jpg

http://33outlaw.zenfolio.com/img/s10...90762399-3.jpg

If cold block is so great why doesn`t everyone run without a stat on the street/endurance/strip?

I wouldn`t mind at least figuring out a way to run the water thru the headers first then to the motor.

I have seen that lots. Experimenting with restrictors should help, also making sure you're getting your oil temp up to at least 200-220 will help as well.

Restrictors where Alex? Mine's been doing this since day one, I have been thinking block temp too. Hoping new oil t stat helps. thx-

Quote:

Originally Posted by HaxbySpeed (Post 4270400)

So if I take the thermostat out of my car it will run too hot because the thermostat isn't there to slow it down through the rad?

in your neck of the woods no thermostat and your going to be freezing but if you go to arazona to visit borgie you surely will overheat.

Quote:

Originally Posted by HaxbySpeed (Post 4270400)

So if I take the thermostat out of my car it will run too hot because the thermostat isn't there to slow it down through the rad?

Some will get hot some will be cold.

Quote:

Originally Posted by launchpad475 (Post 4270406)

Restrictors where Alex? Mine's been doing this since day one, I have been thinking block temp too. Hoping new oil t stat helps. thx-

On the outlet, or outlets, depending on how you're rigged. make sure your psi bypass valve is plumbed before your engine, and then restrict the outlets until you can maintain consistent temp.

Quote:

Originally Posted by mike tkach (Post 4270408)

in your neck of the woods no thermostat and your going to be freezing but if you go to arazona to visit borgie you surely will overheat.

Learn something new everyday..

Quote:

Originally Posted by MILD THUNDER (Post 4269804)

As for ring gaps and thermal expansion, what do the oems figure in for thermal expansion? For example, in the northern states, starting a cold engine when it's -20* F, and then it warms up to 210*. Then you have some that have aluminum blocks as well as iron blocks. What are they running for ring gaps?

Also, has anyone ever compared the temp on the rear cylinders vs the front cykinders on a GM big block in a automotive application?

We are comparing two entirely different scenarios.

On the engine that is starting cold at -20º F, and rising to say 180º,, the components will all rise uniformly relative to each other. The key is uniformly.Their initial and running tolerances are designed based upon the various material and their relative rate of expansion.

In the marine application, where you may experience, a 100º difference in running temp from front to rear cylinders, it's obvious you may want to rethink your initial clearances (ring end gap and piston to wall).

There is no editorializing on anyone's part on the way Tom, or anyone else for that matter chooses to configure the cooling system. Just data.

Bob

Quote:

Originally Posted by launchpad475 (Post 4270406)

Restrictors where Alex? Mine's been doing this since day one, I have been thinking block temp too. Hoping new oil t stat helps. thx-

If you're running cmi's, the jumper hose to the tails works.

Quote:

Originally Posted by HaxbySpeed (Post 4270422)

Learn something new everyday..

im pretty sure you already knew that!