Tower .46BB, OS .32 SX, Mag .40 BB, Mag .15 BB
10-13-2002, 10:13 PM
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Tower .46BB, OS .32 SX, Mag .40 BB, Mag .15 BB
Outstanding idea!
Tower .46BB 12x4 APC 14K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x4 MA 16.2K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x5 MA 15.2K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x7 MA 13.26K Tuned Pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x4 APC 14.5K std muffler 14%N, 21% (80/20)
OS .32 SX Heli 10x4 APC 16.8K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x5 APC 15.21K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 11x4 MA 15.36K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 11x5 APC ~13.5K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x5 APC 15.75K tuned pipe 15%N, 21% (80/20)
Magnum XLS 40A ABC 10x6 MA 15k tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 11x4 MA 15.6K tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 10x4 APC 16.2K tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 10x6MA 15.6K tower muffler 15%N, 22% (80/20)
Magnum XL 25A ABC 9x7 MA 11.6K std muffler 15%N, 22% (80/20)
Magnum XL 25A ABC 8x6 APC 14.5K std muffler 15%N, 22% (80/20)
I have more, but need to track them down.
Tower .46BB 12x4 APC 14K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x4 MA 16.2K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x5 MA 15.2K Tuned Pipe 15%N, 21% (80/20)
Tower .46BB 11x7 MA 13.26K Tuned Pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x4 APC 14.5K std muffler 14%N, 21% (80/20)
OS .32 SX Heli 10x4 APC 16.8K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x5 APC 15.21K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 11x4 MA 15.36K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 11x5 APC ~13.5K tuned pipe 15%N, 21% (80/20)
OS .32 SX Heli 10x5 APC 15.75K tuned pipe 15%N, 21% (80/20)
Magnum XLS 40A ABC 10x6 MA 15k tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 11x4 MA 15.6K tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 10x4 APC 16.2K tower muffler 15%N, 22% (80/20)
Magnum XLS 40A ABC 10x6MA 15.6K tower muffler 15%N, 22% (80/20)
Magnum XL 25A ABC 9x7 MA 11.6K std muffler 15%N, 22% (80/20)
Magnum XL 25A ABC 8x6 APC 14.5K std muffler 15%N, 22% (80/20)
I have more, but need to track them down.
06-05-2006, 03:09 AM
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RE: Tower .46BB, OS .32 SX, Mag .40 BB, Mag .15 BB
Bone stock Tower Hobbies .46 Pro BB ABC, TH muffler, never run until today, sat in a garage for 2 years; bought at garage sale.
Elevation: 4900 feet ASL
Fuel: 15% generic hobby-store stuff, no extra castor
Prop: 10x6 MA (recommended break-in prop)
Temperature: 80 degrees
First tank of fuel: 13,800 RPM, idle @ 3200RPM
Fourth tank of fuel: 14,600 RPM, idle @ 2500RPM
Has trouble maintaining RPM well in steep climbs (on the bench, haven't flown her yet). Starts to stutter on idle down around 2200RPM. I'm very impressed by how well this motor runs compared to my buddy's Magnum .52. Idle is solid, transition from full to idle is immediate, transition from idle to full has a short delay and stutter. Not bad for a $40 motor left in a bag in a basement; need to work out that drop-off issue.
Elevation: 4900 feet ASL
Fuel: 15% generic hobby-store stuff, no extra castor
Prop: 10x6 MA (recommended break-in prop)
Temperature: 80 degrees
First tank of fuel: 13,800 RPM, idle @ 3200RPM
Fourth tank of fuel: 14,600 RPM, idle @ 2500RPM
Has trouble maintaining RPM well in steep climbs (on the bench, haven't flown her yet). Starts to stutter on idle down around 2200RPM. I'm very impressed by how well this motor runs compared to my buddy's Magnum .52. Idle is solid, transition from full to idle is immediate, transition from idle to full has a short delay and stutter. Not bad for a $40 motor left in a bag in a basement; need to work out that drop-off issue.
07-31-2007, 12:44 AM
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RE: Tower .46BB, OS .32 SX, Mag .40 BB, Mag .15 BB
I have a very knowable friend who races with this engine and couldn't figure out your same issue. got a new gasket/seal set from Tower (just a few bucks) and also put hi-temp gasket sealer on the muffler and nipple connection, fuel tube on the needle valve - problem solved as it was an air leak that was dragging it down. runs crazy fast on a 10x6 APC like in the high 13's for sure on 15% stock power master fuel...
Best of luck
Best of luck
