Power loss at 215-220 oil temp?!??!

overtureZ

So lately I've been noticing a loss of power after driving my car for a little while.
For example I just left work, all temps where cold per day, and I didn't a pull in second at 40, it took of like a rocket and hit rev limiter super quick.

About 20 minutes of driving in traffic, oil temp at around 220, I did the pull again, but this time is felt really sluggish and good lord it take ages to hit rev limit!!

Like what the heck is going on lol, AM I THE ONLY ONE??

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SouthArk370Z

220 sounds too low to trigger a nanny. FSM should have a setpoint value.

My guess is that AIT is getting too high. A decent OBD scanner will read AIT.

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overtureZ

I've ordered an uprev cable since I'm tuned with uprev via z1, that will work right?

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jchammond

I've read that timing starts pulling back at 230* oil temp or 190* coolant temp,,,could have been in some humid air,
Also AIT will pull timing back @a specified temp.

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Spooler

Air intake temps are the issue. I have had it happen to me also. I hate it.

jmroy6

I think IAT is the bigger issue over coolant/oil temps. the ecu has a temperature compensation table that will pull or advance timing based on maf sensor readings.

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Cranberry

You are bang on! Had mine on a dyne for 5 days straight and we saw a significant drop in performance when AIT went above 60 (almost 20-30 hp loss).

if your sitting in traffic or city driving the car, you will always be above 70. as hard to believe as it is, in order to keep this motor cool you need to keep it moving.

Even adding an oil cooler will not fix this issue, the engine can only do so much when the temp of the air in the engine bay is so high.

Get an OBDII reader and monitor the intake temp and just like mentioned above, I'm sure you will see the power loss come in after the AIT hit 60 or higher.

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2009 370z M/T - straight pipe cut outs / motordyne test pipes & intake manifold / K&N typhoon intake / ACT stage 2 race clutch & flywheel / ZEX wet nitrous / UpRev tune / stillen race oil cooler / 317 WHP N/A - 381 WHP with ZEX www.youtube.com/danialk ///\\\///\\\ Follow me on Instagram @dankobra

overtureZ

Will do! Thank goodness I have put a deposit on Topz A2A kit!

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jchammond

That 60* be C or F ?


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Jayhovah

Without topz kit I am not sure you can even get accurate AIT from OBDII, since the MAFs are pre-cooler (But you will be able to read what the ECU thinks the AIT is). ECU is probably pulling timing much earlier since it thinks the AIT is hotter than it actually is.

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Cranberry

60 c

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2009 370z M/T - straight pipe cut outs / motordyne test pipes & intake manifold / K&N typhoon intake / ACT stage 2 race clutch & flywheel / ZEX wet nitrous / UpRev tune / stillen race oil cooler / 317 WHP N/A - 381 WHP with ZEX www.youtube.com/danialk ///\\\///\\\ Follow me on Instagram @dankobra

Tractionless

Yikes 140*F Ait? I never saw that high with my last vehicle which was supercharged.

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overtureZ

Just have a glance at the stock stillen supercharger kit, heat soak city

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Jayhovah

Keep in mind this is the AIT that the ECU is reading from the MAFs before the air is cooled inside the manifold. The Stillen is definitely 'heat soak city', but the actual AIT is probably (possibly?) less than that. I'll bet my turbo-compressed air would be a pretty scary temperature too before the IC.

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2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted