Quote:
Originally Posted by SS_Firehawk
I would look at the IAT's that are coming in as well. Being in Vegas, the air is thinner, the pressure is lower, and it's much hotter. Did you notice it dropping power at 205 in the winter?
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Yeah this has been my assumption also since I got the car over a year ago. IAT's just getting too hot. Now that I have the oil cooler I never reach a high enough temp to feel the lag. In summer the air is hot, but the car still produces great power until about 20-25 minutes into a journey when that 205 (ergo 225) temp is hit, then it kicks on the lag. So it must be the already hot air coming in compounding with massive heat-soaking that's heating up my cold-air-intakes (Stillen G3s). I've flipped up the hood a couple of times when it's lagging and my intake pipes are too hot to touch. How do I check my IAT readings?
Quote:
Originally Posted by DIGItonium
While we're on the topic of oil coolers, I have a stupid question. Are you guys using more than 5 quarts of oil? I might be 1 quart short (~ 10mm from H mark). I'm at 1,300 miles now since the last change.
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I have the Stillen 25-row. Mine takes about 5.5 quarts. But I don't drain the OC core when I oil change. Should I be?
Quote:
Originally Posted by wstar
The behavior varies by vehicle design, but I too have definitely observed that a Z with normal ECU settings runs colder with the AC on. This seems counter-intuitive at first since the AC should be (a) adding engine load and (b) adding a little more heat back into the radiator via the condenser.
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That's exactly what I though, which is why I was surprised when I succumbed to the heat and turned on the AC and saw my engine actually cool down.
Quote:
Originally Posted by wstar
UpRev can now control this behavior: there are independent settings for AC-on vs AC-off which control fan duty cycle -vs- water temps. Aside from turning them on earlier in general, you can set the AC-on settings the same as AC-off and then you don't have to turn on the AC just to get the fans going.
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This sounds good. I also read somewhere on the forum that Nissan's stock ECU maps are overly harsh on pulling timings in response to hot IAT readings, and I'm hoping that, with Uprev, the power-cut won't come so willingly.