Oil cooler needed? Don't know? See some results inside

[Dave-ROR]

Originally Posted by Sportsguy83

290 is WOW...


Your numbers are prior to oil cooler or after?

After the cooler.

[ft_sjo]

Originally Posted by Sportsguy83

If that's the case,

#1) He has not been reading the forum in which vendors are saying an oil cooler is ABSOLUTELY necessary even for a DD (thus why independently test it myself on harsher conditions).

#2) He didn't read my first post to see what type of tests I did.

I'll spell it out for you to save any further assumptions.

Driving around with no load at 6k rpm isn't going to tell you much about oil system capacity, other than what it does in those conditions, which is of not much use to anyone.

Your test of driving WOT up to 100mph or whatever will most likely put more heat into the engine than your extended part throttle testings.

If you want to test the system properly, then you need to sit at WOT for extended periods of time.


I think it's great that people want to do tests and show the results to the community, but please try and ensure they're actually worthwhile or it just ends up misleading people.

[robispec]

Originally Posted by Sportsguy83

290 is WOW...


Your numbers are prior to oil cooler or after?

off the obd2 sensor in the block right under the oil filter (3/8 pipe tap 2 wire sensor is pressure next to it is a 1/8th one wire temp sensor)

no oil cooler went back to stock to see how bad it was. day was 75 degrees in the PM and the car SLOWED DOWN after it reached a certain temp...
in the morning the car was doing 10 mph faster exiting turn 2

PS At the ACS "ROVAL" in Fontana CA you are at full throttle for 80% of your lap time and every lap you have a 40 second burst of WOT in the top three gears this was when I was seeing peak oil temps... The Z was the same way as the oil is used for the cam timing changes and this compresses the oil heating it up.

[Sportsguy83]

Originally Posted by ft_sjo

I'll spell it out for you to save any further assumptions.

Driving around with no load at 6k rpm isn't going to tell you much about oil system capacity, other than what it does in those conditions, which is of not much use to anyone.

Your test of driving WOT up to 100mph or whatever will most likely put more heat into the engine than your extended part throttle testings.

If you want to test the system properly, then you need to sit at WOT for extended periods of time.


I think it's great that people want to do tests and show the results to the community, but please try and ensure they're actually worthwhile or it just ends up misleading people.

Can you explain to me how going between 5-7K back and forth is not loading the engine? I didn't keep the throttle constant at 6K and called it a day (kind of hard to do BTW for 8 minutes). I punched it back and forth to keep it at those RPM and of course, I wanted the engine to be loaded. If you read my first post, I said "this is not the final testing nor the definitive testing, just a start". I also said "the real test is at the track", like Robispec did.... Moreso, if you look at my recommendations, a DD should not need an oil cooler but a track car I recommend an oil cooler. Do you think those recommendations are not accurate?


If my WOT to 100 mph put more heat then the other test, why did the oil/coolant temperature stayed in check, but for the "track" test the oil temp rose like a b*tch?

[Sportsguy83]

Originally Posted by robispec

off the obd2 sensor in the block right under the oil filter (3/8 pipe tap 2 wirw sensor is pressure next to it is a 1/8th one wire temp sensor)

Rob, do you remember ambient temperature those times (at least estimate?)

[ft_sjo]

Originally Posted by Sportsguy83

Can you explain to me how going between 5-7K back and forth is not loading the engine? I didn't keep the throttle constant at 6K and called it a day (kind of hard to do BTW for 8 minutes). I punched it back and forth to keep it at those RPM and of course, I wanted the engine to be loaded. If you read my first post, I said "this is not the final testing nor the definitive testing, just a start". I also said "the real test is at the track", like Robispec did.... Moreso, if you look at my recommendations, a DD should not need an oil cooler but a track car I recommend an oil cooler. Do you think those recommendations are not accurate?

It's pretty obvious that a daily driver doesn't need an oil cooler otherwise the manufacturer would have fitted one. I'm fairly sure they would have spent considerable time driving the vehicle in all conditions in all scenarios all round the world to come to that conclusion.

Surely the question is more over do people need an oil cooler on track? If so then people who have driven their cars on track have already posted up numbers they've seen, however i've only seen one person post up figures that they've actually seen an oil pressure drop. Until more than one person does that then no, in my opinion, I don't think there is a need for an oil cooler.

And for the record, I read your first post quite clearly. It does not state you alternated from 5-7k, it said you kept it over 6k, it didn't mention at what load level. To be technical about it, then yes any load on the engine including a static test is 'load', but it's not the type of load that's going to cause you oil temperature problems.

Bear in mind how inefficient IC engines are. There's a lot of heat to be gotten rid of, and there's a huge difference between 30-40hp on a light static cruise than there is at 150hp+ consistently.

Don't see this as an attack. It's critique and it's healthy to entertain it.

[robispec]

yes 76 degrees

[Sportsguy83]

Originally Posted by ft_sjo

It's pretty obvious that a daily driver doesn't need an oil cooler otherwise the manufacturer would have fitted one. I'm fairly sure they would have spent considerable time driving the vehicle in all conditions in all scenarios all round the world to come to that conclusion.

Surely the question is more over do people need an oil cooler on track? If so then people who have driven their cars on track have already posted up numbers they've seen, however i've only seen one person post up figures that they've actually seen an oil pressure drop. Until more than one person does that then no, in my opinion, I don't think there is a need for an oil cooler.

And for the record, I read your first post quite clearly. It does not state you alternated from 5-7k, it said you kept it over 6k, it didn't mention at what load level. To be technical about it, then yes any load on the engine including a static test is 'load', but it's not the type of load that's going to cause you oil temperature problems.

Bear in mind how inefficient IC engines are. There's a lot of heat to be gotten rid of, and there's a huge difference between 30-40hp on a light static cruise than there is at 150hp+ consistently.

Don't see this as an attack. It's critique and it's healthy to entertain it.

Thanks, I am willing to be schooled. I agree the first post wasn't that specific. I respect your opinion and appreciate your input and YES, definitely this minimal test should NOT tell anyone "go get an oil cooler".

I actually am in your camp. I need more data and info before buying one. My intent on doing this was specifically because there are vendors that say an Oil cooler is needed by everyone. IMHO before logging numbers, I didn't think it was necessary for a DD who drove spirited, liked to floor it often, etc. But, since I am not the oracle I wanted to see for myself what kind of numbers we were dealing with. I hope this post is just a first step to much more data and way better/more accurate tests to determine if a track car really needs it, including FI cars. :happy0180:

[ft_sjo]

As a wise engineer once told me, "Test, don't guess!"..

But he also told me "Never let the truth get in the way of a good story!".... which could apply to some vendors on here..

My day job is to provide solutions to a problem. Until I see a problem I won't try to solve it. I think that's where we are with the oil temperature thing.

The simple solution is this. Fit an oil cooler and blank off air flow to it until you need it, e.g. a track day.

[nzer]

Track day with me being no super star (just a beginner) with ambient temperature around 78F (26C) my oil temp topped out at 255F (124C).

A more spirited and accomplished track racer here in NZ topped their oil temp out at 284F (140C) in similar conditions - they're fitting an oil cooler!

One of our club has installed the HKS oil cooler and on track it now tops out now at 212F (100C).

I am likely to track about 5 or 6 times per year and am undecided on the oil cooler at this stage although I like the look of the Perrin one.

Hope this temp info helps.


.

[Sportsguy83]

Originally Posted by nzer

Hope this temp info helps.
.

It helps a LOT thanks!

[polancd]

Originally Posted by Sportsguy83

It was 72 F. I updated the first post.



I definitely will if we get a hot day soon.



Agree with Dave and you.




When I said I would see higher oil temps, I meant doing the same test I did today but ambient temp. at 90+.

When I install the temp gauge to the oil galley I will do comparisons to the OEM sensor.

Thanks for sharing your numbers!

Sent from my HTC One X using Tapatalk 2

Sorry, I meant what was the baseline oil temp before you started driving hard? Also i am guessing you are using 0w20?

[Sportsguy83]

Originally Posted by polancd

Sorry, I meant what was the baseline oil temp before you started driving hard? Also i am guessing you are using 0w20?

Oil was at 190 F when I started. Yes, 0w20.

[keelerad]

Did a training/trackday here in the UK on Feb 14th. Ambient was about 3 C (37 F) had to wait for the snow to melt a bit before we could start

Car is standard apart from a K&N air filter, with moderate track use (as fast as I as a beginner wanted to go) it peaked at 120 C (250 F)

For pictures, torque screenshots, videos etc see http://www.gt86ownersclub.co.uk/foru...topic2412.html

Bed and Breakfast car park the night before



Screenshot from Torque, peak Oil Temp 120 C




Normal daily driving sees it get up to between 90 - 100 C, a bit of a thrash on the road takes it up to 108-110 C

Alec