Need help-What tuned pipe for OS 91FX
05-09-2007 | 12:35 PM
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From: Varna, BULGARIA
Need help-What tuned pipe for OS 91FX
Hello Guys,
I need advice.I have OS .91 FX and im looking for Tuned Pipe,and will use the engine for F3A.Can you tell me which tuned pipe is the best for the engine and is "Macs Muffled Pipe-15/.90-1.30" good for F3A ?I have not got and Adapter for the pipe(Header).Sorry if there are another threads for this engine .
Have A Nice Day
I need advice.I have OS .91 FX and im looking for Tuned Pipe,and will use the engine for F3A.Can you tell me which tuned pipe is the best for the engine and is "Macs Muffled Pipe-15/.90-1.30" good for F3A ?I have not got and Adapter for the pipe(Header).Sorry if there are another threads for this engine .
Have A Nice Day
05-12-2007 | 12:50 PM
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From: Burlington,
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RE: Need help-What tuned pipe for OS 91FX
Here's my tuned pipe setup on the .91 FX that's in my King Kobra:
Pipe: Macs P/N 1190 non-muffled
Header: Macs P/N 2981 cut down to 6". That's measured from the front of the header flange to the end of the header tube just like on the Macs website. This is the LONG header, since I needed to have the pipe away from the plane a little ways. I don't think it's the longest one they make though.
Pressure tap: right where the pipe diameter peaks.
The one you're considering should work fine, it's within the ci range they recommend. I think mine is turning somewhere in the neighborhood of 12800 with a 13x8 prop; she'll climb till I pull the power off. Hope this helps
Pipe: Macs P/N 1190 non-muffled
Header: Macs P/N 2981 cut down to 6". That's measured from the front of the header flange to the end of the header tube just like on the Macs website. This is the LONG header, since I needed to have the pipe away from the plane a little ways. I don't think it's the longest one they make though.
Pressure tap: right where the pipe diameter peaks.
The one you're considering should work fine, it's within the ci range they recommend. I think mine is turning somewhere in the neighborhood of 12800 with a 13x8 prop; she'll climb till I pull the power off. Hope this helps
