oil temp debate

wstar

My avg oil temps have gone up around 10 degrees on the street since installing my FI LTHs. It's because I love the sound of the exhaust at slightly higher revs than I used to cruise at, so now I'm always down a gear from where I should be just to listen

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7AT Track Car!
Journal thread / Car setup details

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

indyn

hasn't SAM@GTM already confirmed that IGN timing gets pulled as per the IAT from MAF.

Look at this post GTM Stage 2 Supercharger Preliminary Testing Results.

ECU will pull timing as the engine gets hotter and heating up the intake. Thermal insulation in the form of wrapping or better yet ceramic coating should help. Oil cooler should help as well.

cossie1600

I think everyone knows ECU will pull timing based on IAT, but I am saying ECU doesn't pull timing based on oil temp directly (I don't think personally anyway unless someone can prove me wrong).

indyn

Isn't the engine that gets the oil temps up and heatsoaks everything around it including MAF which monitors IAT?

As per the service manual of the g37, these input parameters control the IGN timing

- Crankshaft position sensor (POS)
- Camshaft position sensor (PHASE)
- Mass air flow sensor
- Engine coolant temperature sensor
- Throttle position sensor
- Accelerator pedal position sensor
- Park/neutral position (PNP) switch
- Battery
- Knock sensor
- Unified meter and A/C amp

cossie1600

Agree, but that is an indirect effect, not direct. Unless you are sitted and parked, you shouldn't be soaking it anyway.

indyn

I'll try to log these temps next time I'm out for spirited driving. But have noticed that the gen 3 tubing does get really hot that's even not bearable to touch after aggressive driving.

ChrisSlicks

If you have Gen 3 tubing insulating it is a must for aggressive driving. The all metal tubing heat soaks very badly compared to the insulating effect of the stock plastic.

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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

wstar

You can see my cheap/ghetto Gen3 heat shielding post here: wstar's Journal, using DEI cool tape and some lace-up intake wrap that's basically fiberglass w/ an aluminum lining. Or you can go pro and wrap it all in gold foil or something

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7AT Track Car!
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ChrisSlicks

I did the same thing but skipped the laces because they were a pain. Zip ties and foil tape FTW.

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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

indyn

did some logging with Cipher and this is the last log in my spirited driving.

Don't see any relation with any of the temps with IGN timing. Maybe there is a relation between a/f ratio and timing. But check out VVEL timing and MAF values.

Attached Images

uprevlog.jpg (207.1 KB, 9 views)

cossie1600

Were you in closed or open loop? I don't know if the car reads anything else when you are in closed loop other than A/F.