ahannay
Member
I fly a Pazmany PL2 (N446DL) with O-290 D2B, wood prop Hegy 70-61. About a year ago, I bought carbon fiber plenums from Renegade Aircraft, via Doc Bailey, but haven't installed them yet. I'm wondering if anyone has experience with plenums and their effects on engine cooling. According to Renegade, I should remove existing baffling and all the inner-cylinder cooling baffles -- but I'm timid about doing that. I'd think that inner cylinder baffles would help in directing the cooling intake are around the cylinders completely -- and without them, the air might just rush past leaving potential hot spots.
Does anyone have anyone have any experience with this cooling mod. My engine is O-290 D2B in which the 3 and 4 cylinders run a little hot on climb out. They run up close to 500F during climb (unless I reduce power to 75%0 and the cruise temps on those two cylinders runs about 400F. I'd like to see it in the 300's -- but again, I've been reluctant to pull all the baffling...
Thoughts on this would be appreciated. Thanks.
Semper Fi
Does anyone have anyone have any experience with this cooling mod. My engine is O-290 D2B in which the 3 and 4 cylinders run a little hot on climb out. They run up close to 500F during climb (unless I reduce power to 75%0 and the cruise temps on those two cylinders runs about 400F. I'd like to see it in the 300's -- but again, I've been reluctant to pull all the baffling...
Thoughts on this would be appreciated. Thanks.
Semper Fi
