kevinh
Well Known Member
Hi ya'll,
So I'm still tweaking my baffles and I have a question:
I had been flying (happily) with oil temps of 180F and peak CHT at 398ish in cruise. But there was a bit of span between the CHT temps, with #2 being the coolest. I wanted to get the CHTs more equal so I could lean more agressively (at lower altitudes I had to run richer than I would like to keep the max CHT below 400).
I recently tried slightly increasing the height of the ramp in front of cyl 2 (by using aluminum heater duct tape - highly recommended for quickly trying these sorts of changes). With this change the CHTs are pretty equal, but the oil temp is a bit higher: At cruise the oil temp is to 185 ish, but climbs or loops will have it at 195.
So - any advice? Would you say that hitting 195 OT in a climb is a fair trade off for CHTs being more equal by about 30 degrees F?
This is all with an O-360-A1A, one lightspeed, one mag and a carb. I'm using Aeroshell 15W50 oil.
So I'm still tweaking my baffles and I have a question:
I had been flying (happily) with oil temps of 180F and peak CHT at 398ish in cruise. But there was a bit of span between the CHT temps, with #2 being the coolest. I wanted to get the CHTs more equal so I could lean more agressively (at lower altitudes I had to run richer than I would like to keep the max CHT below 400).
I recently tried slightly increasing the height of the ramp in front of cyl 2 (by using aluminum heater duct tape - highly recommended for quickly trying these sorts of changes). With this change the CHTs are pretty equal, but the oil temp is a bit higher: At cruise the oil temp is to 185 ish, but climbs or loops will have it at 195.
So - any advice? Would you say that hitting 195 OT in a climb is a fair trade off for CHTs being more equal by about 30 degrees F?
This is all with an O-360-A1A, one lightspeed, one mag and a carb. I'm using Aeroshell 15W50 oil.
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