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-   -   Power loss at 215-220 oil temp?!??! (http://www.the370z.com/engine-drivetrain/124252-power-loss-215-220-oil-temp.html)

overtureZ 10-17-2017 05:43 PM
Power loss at 215-220 oil temp?!??!
 
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??

SouthArk370Z 10-17-2017 06:02 PM
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.

overtureZ 10-17-2017 06:32 PM
I've ordered an uprev cable since I'm tuned with uprev via z1, that will work right?

jchammond 10-17-2017 06:45 PM
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.

Spooler 10-17-2017 09:04 PM
Air intake temps are the issue. I have had it happen to me also. I hate it.

jmroy6 10-17-2017 10:35 PM
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.

http://www.the370z.com/forced-induct...ml#post1128697

Quote:
Originally Posted by Spooler (Post 3700972)
Air intake temps are the issue. I have had it happen to me also. I hate it.

Cranberry 10-18-2017 08:18 AM
Quote:
Originally Posted by SouthArk370Z (Post 3700918)
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.
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.

overtureZ 10-18-2017 08:54 AM
Will do! Thank goodness I have put a deposit on Topz A2A kit!

jchammond 10-18-2017 10:10 AM
Quote:
Originally Posted by Cranberry (Post 3701038)
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.


That 60* be C or F ?


Sent from my iPhone using Tapatalk

Jayhovah 10-18-2017 10:37 AM
Quote:
Originally Posted by overtureZ (Post 3701047)
Will do! Thank goodness I have put a deposit on Topz A2A kit!
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.

Cranberry 10-18-2017 02:08 PM
Quote:
Originally Posted by jchammond (Post 3701071)
that 60* be c or f ?


Sent from my iphone using tapatalk
60 c

Tractionless 10-25-2017 03:14 PM
Quote:
Originally Posted by Cranberry (Post 3701135)
60 c

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

overtureZ 10-25-2017 04:06 PM
Quote:
Originally Posted by Tractionless (Post 3702757)
Yikes 140*F Ait? I never saw that high with my last vehicle which was supercharged.
Just have a glance at the stock stillen supercharger kit, heat soak city

Jayhovah 10-25-2017 04:53 PM
Quote:
Originally Posted by Tractionless (Post 3702757)
Yikes 140*F Ait? I never saw that high with my last vehicle which was supercharged.
Quote:
Originally Posted by overtureZ (Post 3702768)
Just have a glance at the stock stillen supercharger kit, heat soak city
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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