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-   -   oil temp debate (http://www.the370z.com/engine-drivetrain/40715-oil-temp-debate.html)

wstar 08-11-2011 03:53 PM

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 :)

Dark Sarcasm 08-11-2011 06:40 PM

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

red6spd 08-11-2011 07:43 PM

Quote:

Originally Posted by Dark Sarcasm (Post 1257150)
Please dont mention Z 0 6 again or ImportConvert will show up


:stirthepot:

Teddy KGB 08-12-2011 09:49 PM

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 08-12-2011 10:12 PM

+1

indyn 08-15-2011 10:46 AM

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

Look at this post http://www.the370z.com/forced-induct...ml#post1128697.

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 08-15-2011 11:49 AM

Quote:

Originally Posted by indyn (Post 1262444)
hasn't SAM@GTM already confirmed that IGN timing gets pulled as per the IAT from MAF.

Look at this post http://www.the370z.com/forced-induct...ml#post1128697.

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.

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 08-15-2011 02:43 PM

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 08-15-2011 03:21 PM

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

Quote:

Originally Posted by indyn (Post 1262842)
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


indyn 08-15-2011 10:16 PM

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 08-16-2011 06:43 AM

Quote:

Originally Posted by indyn (Post 1263629)
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.

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.

wstar 08-16-2011 08:42 AM

Quote:

Originally Posted by ChrisSlicks (Post 1263890)
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.

You can see my cheap/ghetto Gen3 heat shielding post here: http://www.the370z.com/members-370z-...html#post76374, 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 :)

ChrisSlicks 08-16-2011 09:34 AM

Quote:

Originally Posted by wstar (Post 1263985)
You can see my cheap/ghetto Gen3 heat shielding post here: http://www.the370z.com/members-370z-...html#post76374, 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 :)

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

indyn 08-17-2011 11:24 PM

1 Attachment(s)
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.

cossie1600 08-18-2011 10:09 AM

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.


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