No longer - Wanted A1B muffler.
- Thread starter DAFLYR
- Start date
Snowbirdxx
Well-Known Member
The muffler is much safer without the flametubes.
DAFLYR
Member
Thanks. i got it figured out.
Snowbirdxx
Well-Known Member
Had a PF on the Husky, did calibration flights before and after. Saw no difference, but higher CHTs and higher noise. Remoerd and replaced with standard exhaust but no flame tubes.
Ak Kurt
Well-Known Member
Rolly, if your stock muffler is not cracking like so many do, I would not spend the $ on a PowerFlow. I installed a PF on my airplane after my muffler cracked, my tail pipe almost came off. I bought the PF because I thought it would be more robust, not necessarily due to claimed performance increase. I feel it is a more robust system however my PF did develop some cracks but unlike the stock muffler, the cracks were in an area that were repairable. The cracks were repaired under warranty by PF but it took a lot of convincing by me and my mechanic that we did everything right and followed the instructions for continued airworthiness exactly and even then it was a customer service experience I wasn’t expecting. So if you do buy a PF system follow the instructions exactly and document everything. One thing the PF did improve on is a lot of extra cabin heat, so much so that it can melt the plastic eyeball vents so you will want to include in the order the nice metal ones when you order the PF. So for me, bottom line is don’t get one if stock system is holding up, get one if you find cracks in your stock system. Word has it that the stock system cracking issue has been addressed by AVIAT with their vendor and improvements have been made but I can not confirm that.
Al Kurt that is excellent information and thank you. I'm a new Husky owner and enjoying this forum immensely. My stock ('97) exhaust did crack but I replaced it with Acorn Welding stock replacement. It's working just fine but always curious if there's a bit more performance to get.
Snowbirdxx
Well-Known Member
To get a tad more performance, get the flametubes out and go for the donaldson or K&N airfilter. And if you are getting the flametubes out or not, go to a welder and have him weld a 2-3 mm thick stripe around the endplates of the muffler. That increases the room and airflow for the heater. If more heat is desired check if the shroud around the exhaustoutlet is tight. If not make it tight with an aluminum plate and add an extrs large clamp to hold it.
Last edited:
bumper
Well-Known Member
In side-by-side flight testing, a friend's Husky would outclimb mine, both with stock exhausts (flame tubes not removed). After I installed the PowerFlow, mine would outclimb his by a significant margin, noticeably more than he had over me previously. That said, I'd go with Tom's advice and just remove the flame tubes.
Ak Kurt
Well-Known Member
I would keep what you have Rolly. Also, Tom D and Bumper are experts all things Husky and actually I would venture to say experts in just about everything. They are absolute treasures.
Kurt