[SPAM] OS 1.40 header

[Anthony Romano]

Can't remember the size off the top of my head but it takes some work to get 
the couple on. I heat the end with a cigarettel lighter then slip it over a 
screw driver handle followed by a piece of broom stick to get the ID 
necassary. I try to use the shortest pieces of teflon I can and keep the 
joint size to a minimum. This is what makes the filler piece of Al wing tube 
handy is cut the header then use slightly long piece of wing tube as a 
filler and two short teflon couplers. For tuning just cut the filler.
On the Aeroslave pipe the fit is great especially with the raise edge. The 
only difficulty I have had is when some of the Teflon gets old the pipe 
starts to slide. I was able to slip another zip tie around the stinger and 
the side of my pipe mount and that held every thing in place.

Anthony


>From: "Lance Van Nostrand" <patterndude at comcast.net>
>To: "Anthony Romano" <anthonyr105 at hotmail.com>
>Subject: Re: [SPAM] OS 1.40 header
>Date: Sun, 9 Oct 2005 18:22:26 -0500
>
>I remember you saying you were using teflon couplers. Those are certainly 
>lighter than silicone.  What's the secret for assembling?  the Mintor pipe 
>is 20mm OD (between 3/4 and 7/8").  What size teflon is used?  I heard that 
>if its too small and you heat it (to soften it) and assemble it then it can 
>crush the pipe...  If too large then it will slip off because teflon has no 
>shear resistance.
>
>I might like to try this.
>--Lance
>
>----- Original Message ----- From: "Anthony Romano" 
><anthonyr105 at hotmail.com>
>To: <discussion at nsrca.org>
>Sent: Sunday, October 09, 2005 9:48 AM
>Subject: Re: [SPAM] OS 1.40 header
>
>
>>Don't know the weight of the OS header but my setup of cut down header, 
>>two teflon couplers and Al wing tube extension is just under three ounces. 
>>Maybe the Mintor version is lighter but I would be surprised.  Over four 
>>hundred flights in my HydeAway and zero maintenaince.
>>It is a good idea to use longer header bolts than the supplied with the 
>>Macs header.
>>
>>Anthony
>>
>>>From: "Lance Van Nostrand" <patterndude at comcast.net>
>>>To: "Anthony Romano" <anthonyr105 at hotmail.com>
>>>Subject: Re: [SPAM] OS 1.40 header
>>>Date: Sat, 8 Oct 2005 12:52:19 -0500
>>>
>>>Two silicone couplers, beefy exhaust port metal, I can't see how this is 
>>>light at all.
>>>--Lance
>>>
>>>----- Original Message ----- From: "Anthony Romano" 
>>><anthonyr105 at hotmail.com>
>>>To: <discussion at nsrca.org>
>>>Sent: Saturday, October 08, 2005 10:42 AM
>>>Subject: RE: [SPAM] OS 1.40 header
>>>
>>>
>>>>Didn't like the maintenaince or the price of the OS header. Have been 
>>>>using the Mac's now for some time. I match the exhaust port then cut the 
>>>>header right after the bend. Leave enough to get a coupler on then cut. 
>>>>It is not long enough to get the length you want so you will need a 
>>>>filler piece anyway. I use an old wing tube for the filler. Same size 
>>>>and lighter then the header. This also  keeps any joints short and makes 
>>>>for easy tuning.
>>>>
>>>>Anthony
>>>>
>>>>
>>>>>From: "Ed  Alt" <ed_alt at hotmail.com>
>>>>>To: <discussion at nsrca.org>
>>>>>Subject: [SPAM] OS 1.40 header
>>>>>Date: Fri, 7 Oct 2005 22:17:23 -0400
>>>>>
>>>>>BlankJust wondering what the opinions are re. the best header for the 
>>>>>OS 1.40.  I've got the OS version and it's a bit of a nuisance to deal 
>>>>>with the O-ring going bad. Also, it really looks like it would result 
>>>>>in improved gas flow (more power) if the inlet for the "matched" header 
>>>>>was the same size and shape as the exhaust port.  I'm tempted to grind 
>>>>>it down to get that match right.  Has anyone done this and does it 
>>>>>help?
>>>>>Thanks
>>>>>
>>>>>Ed
>>>>>
>>>>><< BlankBkgrd.gif >>
>>>>
>>>>
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>>>
>>>
>>
>>
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>
>


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