Oil Cooler whine?

Red__Zed · 08-25-2011, 09:22 PM

Quote:

Originally Posted by houkouonchi

Chris is correct I shut down because I didn't want to push the engine hard when it was running that hot.

Please educate me why running at 168 is so awful for the engine. I find it odd its awful when I am getting better gas mileage. I got 27.2 MPG on my way home today when I am usually in the 25-26 range (I pretty much never see over 26.5), so definitely getting a noticeable increase in MPG.

Take a look at oil performance vs temperature.

Why would you shut the engine down at 265?

Quote:

Originally Posted by onzedge

It seems to me that the Nissan oil cooler kit comes with a thermostatic sandwich plate. I am almost sure of it.

I'm pretty sure it doesn't.
Nissan Motorsports Oil Cooler Kit

onzedge · 08-25-2011, 10:19 PM

Quote:

Originally Posted by FL 4Motion

No, the Nismo oil cooler does not come with a thermostatic plate, however, you can buy one and add it to the kit w/o issue.

Quote:

Originally Posted by Red__Zed

Take a look at oil performance vs temperature.

Why would you shut the engine down at 265?

I'm pretty sure it doesn't.
Nissan Motorsports Oil Cooler Kit

Red and FL -- I assumed it came with thermo plate due to its price. Thanks for clarifying.

Red__Zed · 08-25-2011, 10:41 PM

Quote:

Originally Posted by onzedge

Red and FL -- I assumed it came with thermo plate due to its price. Thanks for clarifying.

Haha- the joys of nismo.

onzedge · 08-25-2011, 10:48 PM

Quote:

Originally Posted by Red__Zed

Haha- the joys of nismo.

cossie1600 · 08-25-2011, 10:58 PM

Get some 3M tape and cover the oil temp gauge, you will be much happier....

For the 20th time, there is no direct correlation between oil temp and engine power. You might heatsoak the bay and raise the IAT and therefore lower timing. I looked into the VVTC system, oil temp sensor doesnt seem to tie into it unless it does something mechanical

Red__Zed · 08-25-2011, 11:01 PM

Quote:

Originally Posted by cossie1600

Get some 3M tape and cover the oil temp gauge, you will be much happier....

For the 20th time, there is no direct correlation between oil temp and engine power. You might heatsoak the bay and raise the IAT and therefore lower timing. I looked into the VVTC system, oil temp sensor doesnt seem to tie into it unless it does something mechanical

You love saying that. I don't care whether it's a direct or indirect factor... It still pulls timing

cossie1600 · 08-26-2011, 12:45 AM

Quote:

Originally Posted by Red__Zed

You love saying that. I don't care whether it's a direct or indirect factor... It still pulls timing

If you sit at the drag strip maybe, there is enough fresh air to cool the car back down once you are at speed.

houkouonchi · 08-26-2011, 01:16 AM

Quote:

Originally Posted by cossie1600

Get some 3M tape and cover the oil temp gauge, you will be much happier....

For the 20th time, there is no direct correlation between oil temp and engine power. You might heatsoak the bay and raise the IAT and therefore lower timing. I looked into the VVTC system, oil temp sensor doesnt seem to tie into it unless it does something mechanical

When I was running in the 260 range the car definitely felt like it had reduced power. On my way into work today I got 28.6 MPG so it seems like I am pretty consistently getting better fuel efficiency since the oil temps are running lower. They aren't running quite as low as the previous day though. They hover in the 170s now (don't go under 170)

cossie1600 · 08-26-2011, 09:00 AM

High oil temp=thinner oil=less friction=higher fuel efficiency. There is a reason why a lot of car uses 0w20 and 5w20 oil now (they are as thin as urine)

It's all in your head and there are many variables to fuel mileage. I can get 1.5mpg extra by pumping my tire pressure to 45. THere are studies made all over with the Prius guys.

Check with a guy with an oil pressure gauge and see his reading at a particular RPM at 160 vs 210, the pressure drop would probably give you a better indication of how well the oil is flowing and therefore show you if your engine is running okay.

For the most part, oil's job is to lubricate your engine, leave the cooling part to coolant/water.....

Red__Zed · 08-26-2011, 09:04 AM

Quote:

Originally Posted by cossie1600

If you sit at the drag strip maybe, there is enough fresh air to cool the car back down once you are at speed.

Running the dragon the car notably pulled timing above 250.

roy'sz · 08-27-2011, 09:48 AM

Quote:

Originally Posted by Red__Zed

Wow, again, get a thermo coupler. Running at 168 is awful for your engine.

Also, your engine shut down at 265?

By thermocouple im sure that you mean the mocal sandwich plate adapter correct? Nissan said 168 isn't bad, but again it depends on what oil you are running. I have the same whine coming out from my car and I've done endless researching on this subject. Z1 said that it is "somewhat normal" in one of their other threads. HOWEVER, I have also read that it has to do with the oil lines rubbing on the chassis giving off a resonating frequency. I am going to Nissan today to have them wrap it to see if it makes a difference. The tech there that installed is a gt-r certified mechanic and also worked at a speed shop here in cali so i know he'll hook it up

houkouonchi · 08-27-2011, 11:00 AM

Quote:

Originally Posted by roy'sz

By thermocouple im sure that you mean the mocal sandwich plate adapter correct? Nissan said 168 isn't bad, but again it depends on what oil you are running. I have the same whine coming out from my car and I've done endless researching on this subject. Z1 said that it is "somewhat normal" in one of their other threads. HOWEVER, I have also read that it has to do with the oil lines rubbing on the chassis giving off a resonating frequency. I am going to Nissan today to have them wrap it to see if it makes a difference. The tech there that installed is a gt-r certified mechanic and also worked at a speed shop here in cali so i know he'll hook it up

Which dealer is that? I see your in riverside so really close to me. Actually I go to the riverside dealership (performance nissan).

Funny enough they said one other guy was waiting for the oil cooler too (I was waiting longer at 3+ months). Is it the same dealership? LOL.

I did talk to the guys there and they said that they couldn't wrap the lines to get rid of the noise as it would void the warranty or some crap. =( That was a bit lame but the sound doesn't bug me THAT much so I will live.

onzedge · 08-27-2011, 11:06 AM

Quote:

Originally Posted by houkouonchi

Which dealer is that? I see your in riverside so really close to me. Actually I go to the riverside dealership (performance nissan).

Funny enough they said one other guy was waiting for the oil cooler too (I was waiting longer at 3+ months). Is it the same dealership? LOL.

I did talk to the guys there and they said that they couldn't wrap the lines to get rid of the noise as it would void the warranty or some crap. =( That was a bit lame but the sound doesn't bug me THAT much so I will live.

It is not difficult to wrap them yourself. When I installed my oil cooler, I bought about 4 feet of heater hose that has the same ID as the oil cooler lines' OD. I slit the hose length-wise and cut it into sections. I wrapped and zip tied the hose pieces everywhere the oil cooler lines touched anything -- maybe 3 places total.

I did not do it to elimiate noises, but to prevent any chafing of the lines against other parts.

Food for thought.

supunna_picta · 08-27-2011, 11:55 AM

I've seen a couple of threads on oil coolers causing whining noises, the car whines a lot without one. Even after you turn the car off with the clutch in it whines, and then you let the clutch out and it stops. I had the hood off of the car for repainting and it was really noticeable, this was just before I installed an oil cooler (Z1) this week, no change in sound afterwards. YMMV but I think it's the way it is.

SPOHN · 08-27-2011, 12:24 PM

IMO it's best just to order a oil cooler kit from Z1 and get the heat shrink sheath's with the kit. If you already have a kit just order the sheath from them and install. You will have to remove at least one end of the lines on both. Both well worth for a couple of reasons. I still would install heater hose in the more vulnerable spots. Which for me was around the crash beam and the frame in the engine bay near the sway bar. Which is not seen in the pics below.

08-26-2011, 09:00 AM	#24 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	High oil temp=thinner oil=less friction=higher fuel efficiency. There is a reason why a lot of car uses 0w20 and 5w20 oil now (they are as thin as urine) It's all in your head and there are many variables to fuel mileage. I can get 1.5mpg extra by pumping my tire pressure to 45. THere are studies made all over with the Prius guys. Check with a guy with an oil pressure gauge and see his reading at a particular RPM at 160 vs 210, the pressure drop would probably give you a better indication of how well the oil is flowing and therefore show you if your engine is running okay. For the most part, oil's job is to lubricate your engine, leave the cooling part to coolant/water..... Last edited by cossie1600; 08-26-2011 at 09:07 AM.

08-27-2011, 11:55 AM	#29 (permalink)
supunna_picta Base Member Join Date: Mar 2011 Location: Englewood, CO Posts: 102 Drives: Red 370z Rep Power: 14	I've seen a couple of threads on oil coolers causing whining noises, the car whines a lot without one. Even after you turn the car off with the clutch in it whines, and then you let the clutch out and it stops. I had the hood off of the car for repainting and it was really noticeable, this was just before I installed an oil cooler (Z1) this week, no change in sound afterwards. YMMV but I think it's the way it is. __________________ 2011 Touring/Sport/6mt \| winter: 2009 WRX

08-27-2011, 12:24 PM	#30 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	IMO it's best just to order a oil cooler kit from Z1 and get the heat shrink sheath's with the kit. If you already have a kit just order the sheath from them and install. You will have to remove at least one end of the lines on both. Both well worth for a couple of reasons. I still would install heater hose in the more vulnerable spots. Which for me was around the crash beam and the frame in the engine bay near the sway bar. Which is not seen in the pics below. __________________

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08-25-2011, 10:58 PM	#20 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	Get some 3M tape and cover the oil temp gauge, you will be much happier.... For the 20th time, there is no direct correlation between oil temp and engine power. You might heatsoak the bay and raise the IAT and therefore lower timing. I looked into the VVTC system, oil temp sensor doesnt seem to tie into it unless it does something mechanical