oil temp debate

quicksilver08

Anyone ever datalogged the ECM and seen if it's in fact pulling timing as the oil temp increases or maybe there's something else causing it? I know on my g I can feel the car get doggier the hotter it gets but then again it's also a 108* every day so I'm sure that's not helping. Just curious.

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2008 Infiniti G37s 6mt coupe
Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys

ChrisSlicks

The ECU is forced to pull timing as the engine gets hotter. My belief is that it does it in a reactionary way and isn't directly related to oil temp. Others disagree. A simple test would be to disconnect the oil temp sensor or give the ECU a false reading.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

quicksilver08

I understand that. But has anyone logged it and seen how much timing is pulled, how it's pulled (all at once, gradually, steadily increasing as rpm's rise?), and what parameters (oil temp, coolant temp, IAT, all the above?) are used to determine when/how much is pulled? Maybe I'm trying to dig to deep on such a new platform. Just thinking that if we could actually see what the ECU is doing then we could solve a lot of these questions. An oil cooler obviously works but is it solving the problem completely or is it just prolonging the inevitable? Maybe it's still pulling timing but not as severe. See what I'm getting at? Sorry for the rambling. I just like a bunch of technical info. I'm a nerd like that.

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2008 Infiniti G37s 6mt coupe
Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys

ChrisSlicks

I haven't logged it, you would have to do that with UpRev to really see in detail. I don't really care enough as like Cossie said, as long as you stay out of limp mode it doesn't make that much of a difference on track. It did feel like less timing was pulled when running the higher octane mix, but this could have been in my head.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

red6spd

I add ice cubes with tiny peices of fruit in the middle to my oil. Cools it down and adds some flavor.

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2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness.
???Whp ???WTQ (Will find out come spring time)

cossie1600

I don't think the OBDII system picks up oil temp. The oil temp gets picked up by the ECU, so I am not sure if it is an engine tuning parameter

cossie1600

once again, worried over nothing. ask any guys who drive on the track and has a datalogger, the top speed on lap 1 is nearly the same at the end of the session. the variance is small enough that you should have nothing to worry about. if you are getting your underwear stuck between your butt crack over 5hp, you got a problem. its a bigger problem for dyno bench and street racer because the cars have no chance to cool or breathe fresh air. once you are out driving, iat is only 5 to 15 degree warmer than ambient

cossie1600

if i was into drag racing, i would just pee onto the oil cooler fins since most of the heat comes from heat soaking. a litle yellow coolant cant hurt

nastyniSmo

We have had over 35 consecutive days of 100+ temperatures in Texas (record is 42 set in 1980) and my 370z is a DD and I have never seen my temps over 240 even with spirited driving thrown in the mix. My temps usually hover around 220 in this god awful heat so, some of you guys must be pushing your car pretty hard on the streets if you are reaching 240+ in 80-90 degree temperatures. Anyway, from what I experience everyday I wouldn't think an oil cooler is necessary unless it is a dedicated track car or you have money to blow.

Side note: I am begging for 80-90 degrees here, at night(9pm-12am) our temps range from 95-100 STILL!)

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2010 MB 370Z 6MT

wstar

It's all about how much time you spend in the upper half of the revs at relatively low speeds. Even at mostly 1/2 throttle or less, just high revs and less airflow will kick up the oil temp pretty quickly on a hot day. Most practical street driving doesn't sustain 4K+ RPM very often though

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ChipsWithDips

Yeah the only time I've seen my oil temps get high was cruising at very light throttle on a long highway trip, and I accidentally didn't have it in 6th. Had my stereo on and stock exhaust(way too damn quiet, can't hear what motor is doing) so I didn't notice it for a while.

Dark Sarcasm

Please dont mention Z 0 6 again or ImportConvert will show up

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wax

red6spd

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2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness.
???Whp ???WTQ (Will find out come spring time)

Teddy KGB

After all the arguing back and forth on this topic I've decided it's best to just cover up the damn guage and move on with life. I bet you'll never feel a difference, no matter how you drive. (Not including the track, of course.)

Try it. It's nice not glancing at it every minute, wondering if it's too high. Seriously, count how many times you check that guage on a short drive. It's almost become an OCD part of my scan.

cossie1600

+1