Narrative:

I was departing when I noticed that my oil temps were in the yellow approaching red. I tried to contact [a nearby airport] but the controller was busy and asked me to wait. Meanwhile I am thinking [the nearby airport] is be best opportunity for success if I have a failure. I begin backing down the manifold pressure from 27 to 17 inches and the rpms from 2700 to 2400. The temps began to reduce to below 226 F. It was during this time that I was informed by [the nearby airport controller] not to enter their airspace. I immediately headed to the shoreline out of their airspace. I was at an altitude of 900 MSL. The temps continued to decrease to 212. I continued to follow VFR [landmarks] until I picked up my IFR. I was asked to expedite my climb but was unable. I explained my situation to the controller and he asked if I needed to land; I declined because the temps were gradually decreasing. We finally obtained our flight altitude and the temps remained higher than normal but within the green.my a&P informed me that the fuel gph on takeoff was at 24 gph instead of 31 gph. The engine was not receiving enough fuel to cool the oil and the 90 F outside air was no benefit. He corrected this problem by making several adjustments via increasing the unmetered fuel pressure. This explained the increase in oil temperature.

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Original NASA ASRS Text

Title: Lancair ES pilot reported a possible airspace violation occurred when he was distracted by high oil temperature on departure.

Narrative: I was departing when I noticed that my oil temps were in the yellow approaching red. I tried to contact [a nearby airport] but the controller was busy and asked me to wait. Meanwhile I am thinking [the nearby airport] is be best opportunity for success if I have a failure. I begin backing down the manifold pressure from 27 to 17 inches and the RPMs from 2700 to 2400. The temps began to reduce to below 226 F. It was during this time that I was informed by [the nearby airport Controller] not to enter their airspace. I immediately headed to the shoreline out of their airspace. I was at an altitude of 900 MSL. The temps continued to decrease to 212. I continued to follow VFR [landmarks] until I picked up my IFR. I was asked to expedite my climb but was unable. I explained my situation to the Controller and he asked if I needed to land; I declined because the temps were gradually decreasing. We finally obtained our flight altitude and the temps remained higher than normal but within the green.My A&P informed me that the fuel GPH on takeoff was at 24 GPH instead of 31 GPH. The engine was not receiving enough fuel to cool the oil and the 90 F outside air was no benefit. He corrected this problem by making several adjustments via increasing the unmetered fuel pressure. This explained the increase in oil temperature.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.