ANOTHER oil temp thread

[Dzmitry]

Originally Posted by NoHaveMSG

It was a long time ago I ran 5-30, I want to say it was similar I don't remember.

I notice the pressure drop pretty much at operating temp or above.

Gotcha, and your operating temp is considered to be 212F? Or 176F per FSM?

[NoHaveMSG]

Originally Posted by Dzmitry

Gotcha, and your operating temp is considered to be 212F? Or 176F per FSM?

180F+

[NoHaveMSG]

@Dzmitry I should have some good data coming up. I am using Innovate Motorsports MTX gauges going to a sensor interface and a logger. So I will be able to log and plot temp/pressure and RPM. I was trying to get it done last week for my last track day, I just ran out of time to make a harness to pull RPM reference from an ignition coil. The data will get posted up in a new thread. I plan to test 0-20 and 5-30 with and without oil cooler over the course of this year. I just have to find the time. I still need to swap the radiator on my car, and pull the engine and reseal the timing cover and install the rocker retainer kit. Those take priority.

[Dzmitry]

Originally Posted by NoHaveMSG

@Dzmitry I should have some good data coming up. I am using Innovate Motorsports MTX gauges going to a sensor interface and a logger. So I will be able to log and plot temp/pressure and RPM. I was trying to get it done last week for my last track day, I just ran out of time to make a harness to pull RPM reference from an ignition coil. The data will get posted up in a new thread. I plan to test 0-20 and 5-30 with and without oil cooler over the course of this year. I just have to find the time. I still need to swap the radiator on my car, and pull the engine and reseal the timing cover and install the rocker retainer kit.

That would be awesome and very informative, looking forward to it!

[BrahmaBull1990]

Originally Posted by NoHaveMSG

@Dzmitry I should have some good data coming up. I am using Innovate Motorsports MTX gauges going to a sensor interface and a logger. So I will be able to log and plot temp/pressure and RPM. I was trying to get it done last week for my last track day, I just ran out of time to make a harness to pull RPM reference from an ignition coil. The data will get posted up in a new thread. I plan to test 0-20 and 5-30 with and without oil cooler over the course of this year. I just have to find the time. I still need to swap the radiator on my car, and pull the engine and reseal the timing cover and install the rocker retainer kit. Those take priority.

Any update on this data set?

Thank you!

[NoHaveMSG]

Originally Posted by BrahmaBull1990

Any update on this data set?

Thank you!

Can’t get it to communicate properly.

[J95]

Originally Posted by DarkSunrise

That's true, but not all oil coolers are built the same. Generally speaking, a narrower width oil cooler with more rows (taller) will have much less of a reduction in oil pressure.

http://www.setrabusa.com/products/oi...ine/index.html

Same for larger oil lines with gentler bends. The goal is that the oil cooler reduce temps to a large enough extent to more than off-set the small drop in oil pressures that it causes.

A little spitball math here. The Setrab link above shows the pressure drop across a Setrab 613 is around 4 psi. In my experience, a typical front-mount Setrab 613 setup (Perrin, Racer X, etc.) will reduce oil temps by about 40 F on this platform. From the pressures shown on this link, that means a 613 will still add another 16-17 psi oil pressure at 7000 rpm (assuming 235 vs. 275 F oil temps).

https://www.ft86club.com/forums/showthread.php?t=91820

So it's still adding a net benefit despite the fact that the Setrab 613 IMO is a pretty marginal setup on this platform (without doing something to increase its efficiency like a vented hood). From what I've heard, a well designed 19 row cooler can drop oil temps on this platform around 50 F.

Hey! I just found this comment which I find very useful, but I am confused about the psi drop table and the radiator size. How come is that more rows means less pressure drop? i.e 610 has 4.8 psi drop vs 613 has 4.0 psi drop


Basically I am debating between a setrab with 10 or 13 rows because I am concerned about overcooling in daily use and the 10 rows could be beneficial here. I make mix usage and right now I see easliy temps of 135° on the track, so an oil cooler is for sure needed (will keep NA)

[Grady]

Originally Posted by J95

Hey! I just found this comment which I find very useful, but I am confused about the psi drop table and the radiator size. How come is that more rows means less pressure drop? i.e 610 has 4.8 psi drop vs 613 has 4.0 psi drop

More rows means there are more passages for the oil to go through. Think of it as a larger hose. With more passages the oil is flowing slower giving heat exchanging more time to work. You are better going with more rows than longer oil cooler.

[J95]

Originally Posted by Grady

More rows means there are more passages for the oil to go through. Think of it as a larger hose. With more passages the oil is flowing slower giving heat exchanging more time to work. You are better going with more rows than longer oil cooler.

Ok thx!

I am deciding between 10 or 13 rows. It will be placed in the front bumper.

My car is NA and I have mixed usage road/track but I am really concerned about overcooling in winter so I thought about going for 10 rows. Any thoughts on this?

[terboboost]

Originally Posted by J95

Ok thx!

I am deciding between 10 or 13 rows. It will be placed in the front bumper.

My car is NA and I have mixed usage road/track but I am really concerned about overcooling in winter so I thought about going for 10 rows. Any thoughts on this?

Get a thermostatic sandwich plate and you don't have to worry about overcooling. Regardless of winter, you should use a thermostatic plate anyways.