First off, I'll say that I bought my engine from a Reno racer at 105 TTSN 0 SMOH - and the engine log doesn't give me any indication if it has piston squirters or not (IO360, parallel valve). I have right at 8 hours on the engine now so I should be at the point where the rings are seated (or at least seating) and break-in heat loads should be reduced. I'm easily able to keep CHT's below 400, but my oil temp consistently runs in the low-to-mid 240's at 24" and 2400 rpm, using a Niagara 7-row oil cooler on a firewall mount with 4" SCAT tubing off a James plenum, and my Vernatherm is confirmed good. From what I know (and admittedly I have holes in my knowledge) about the oil heat load, the only way this makes sense right now is with piston squirters in the engine to supply that extra oil heat load. I'm unable to contact the engine builder now, apparently his phone number has changed, so without a teardown myself I'm unable to confirm the existence of the piston squirters. Local temps at my testing altitude have been 60's and 70's Fahrenheit.
I guess I'm just asking for the tribal knowledge of the gray-hair wrench turners here, does this sound about right? I ordered a 10-row AeroClassics oil cooler today to try to make a dent in the oil temps, that should be here in a few days.
I guess I'm just asking for the tribal knowledge of the gray-hair wrench turners here, does this sound about right? I ordered a 10-row AeroClassics oil cooler today to try to make a dent in the oil temps, that should be here in a few days.
Last edited: