ERA 753 - Final Assembly in Progress

[patrickt]

Originally Posted by Bobcat

Do you know what is inside the Canton unit that could allow the oil to heat up to the 170 degree range while idling ? Sounds like there is some type of orifice that they force the oil to go through . GPM through an orifice equals pressure drop equals heat generation ... and in this case , it sounds like a good thing ( here I`m being an anal engineer again).

I don't think that's right. The instruction sheet says that it simply bypasses the oil cooler until the oil reaches 215 degrees. I don't believe it increases the temperature by reducing the volume passage, increasing pressure through an orifice, etc. I can see problems if it tried to do that. http://www.cantonracingproducts.com/...PDF/22-480.pdf

[patrickt]

Which begs the question....... Fred, on the hottest days of the year were you ever able to get your oil temp up to, say, 200 degrees (figuring that maybe your cooler shaved off 15 degrees)? You can probably tell, I'm wondering if the Canton will ever open up at all.

[fkemmerer]

Originally Posted by patrickt

Which begs the question....... Fred, on the hottest days of the year were you ever able to get your oil temp up to, say, 200 degrees (figuring that maybe your cooler shaved off 15 degrees)? You can probably tell, I'm wondering if the Canton will ever open up at all.

On hot days, I saw oil temps at about 70 C (160 F) during normal street driving. This was with the cooler full on all the time and the motor not being pushed hard except for relatively limited bursts. It will be interesting to see what temperature the oil will get to with the thermostat installed during warm weather but I will have to wait until the warm weather comes back next year. Honestly, if the cooler does not come into the circuit unless I am pushing the motor for extended periods, that is not a bad thing. I also suspect that I will see it come in during extended idle situations in the summer. My test the other night was in 50 degree F air and I saw oil temps of 175 F while alternating between short 2000 RPM operation and idle at rest at rest. On a 90 degree F day in the summer, I would expect to get pretty close to the opening point of the thermostat. Also note that this unit constantly circulates about 10% of the engine's oil flow through the cooler and will increase to 100% as the oil temperature nears the 215 F point. This means that the cooler will be used only when the motor sees extended high RPM operation such as in track conditions in warmer weather which is exactly what I want.

I am planning to drive the car for an extended period on the street. The air temperature should be around 55 - 60 F so it will be interesting to see what my oil temperatures look like in those conditions.


- Fred

[fkemmerer]

Originally Posted by patrickt

I don't think that's right. The instruction sheet says that it simply bypasses the oil cooler until the oil reaches 215 degrees. I don't believe it increases the temperature by reducing the volume passage, increasing pressure through an orifice, etc. I can see problems if it tried to do that. http://www.cantonracingproducts.com/...PDF/22-480.pdf

I agree with patick, the thermostat does note pose any significant restriction - instead the rise in oil temperature at idle is due the removal of the cooler circuit and the elimination of all of the associated area in cooler and associated lines which disipates the heat of the oil.

- Fred

[ERA Chas]

Originally Posted by fkemmerer

...instead the rise in oil temperature at idle is due the removal of the cooler circuit and the elimination of all of the associated area in cool are to disipate the heat of the oil.
- Fred

-and the fact that you're not passing 40 to 100+MPH, ambient temp wind over all the exposed parts of the system we discussed. Don't understand the last part of your sentence there Fred-are you saying what I just said?

I believe that the 'sheltered' position of the t'stat and it's lines may not provide the benefit you suspect while driving. As you saw, covering the cooler did next to nothing. You will still be passing fan and rad air over the t'stat, albeit warmer than ambient.

Testing will tell.

[fkemmerer]

Originally Posted by ERA Chas

-and the fact that you're not passing 40 to 100+MPH, ambient temp wind over all the exposed parts of the system we discussed. Don't understand the last part of your sentence there Fred-are you saying what I just said?

I believe that the 'sheltered' position of the t'stat and it's lines may not provide the benefit you suspect while driving. As you saw, covering the cooler did next to nothing. You will still be passing fan and rad air over the t'stat, albeit warmer than ambient.

Testing will tell.

Chas,

Check out the post with the testing data. I am seeing a significant increase in oil temperatures with the Canton unit on the car. I am seeing an increase in my oil temperatures from 50 C to about 75 - 80 C in the cold weather here in New England and I no longer need to block the oil cooler.

- Fred

[ERA Chas]

Originally Posted by fkemmerer

Chas,

Check out the post with the testing data. I am seeing a significant increase in oil temperatures with the Canton unit on the car. I am seeing an increase in my oil temperatures from 50 C to about 75 - 80 C in the cold weather here in New England and I no longer need to block the oil cooler.

- Fred

Bravo Fred,

Great job and glad you had success. After 2 Mocal's and an Earls you proved I tried the wrong t'stats. (2 of which are resting on my parts shelf)

I will continue to use the car in my customary manor as that has worked well for me. I'm just smart enough to know that KISS principle works best for me and only smarter guys than me (like you) should employ more complex solutions.

Just avoid creating a 3000 pound ERA because even with 650 HP, it won't feel the same.