[NSRCA-discussion] Need info Hydout header & pipe for Webra 145

[Gordon Anderson]

Paul,
 
Not sure what other pipes are good for the Webra, I was kind of hoping someone
else would jump in with pipe options. I'm building an Impact and powering it
with a Webra 1.60, I would like to find a pipe a little less expensive than the
ES. The ES stuff is very good, I have used a couple of there pipes.
As far as the rise calculation goes, I think its the centerline of the exhaust
port to the centerline of the pipe. 
I have always used a pipe port diameter that matched the diameter of the header.
 
--Gordon

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of paul
Sent: Saturday, December 17, 2005 2:35 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Need info Hydout header & pipe for Webra 145


    What other pipes are good - that one is a bit pricey.  Also how do I go
about calculating the header rise ?
    I suppose it would require first picking the pipe and then the pipe center
would be 1/2 the diameter (yes I know that is called the radius) plus the
standoff distance from the fuse.  The vertical distance between the pipe center
and the center of the exhaust would yield the rise.
    Is there a generally useable estimate for pipe diameter that can be used w/o
first selecting the pipe ?
Thanks,
Paul

----- Original Message ----- 
From: Gordon Anderson <mailto:gordonanderson at verizon.net>  
To: 'NSRCA Mailing List' <mailto:nsrca-discussion at lists.nsrca.org>  
Sent: Saturday, December 17, 2005 1:18 PM
Subject: RE: [NSRCA-discussion] Need info Hydout header & pipe for Webra 145

Paul,
 
I have a Hydeout with a Webra 1.45 that I flew all last season. The 1.45 has
lots of power and I have been very happy with its performance. I have a grieves
pipe and a header I bought from Piedmont Models I think its the same as the one
Central Hobbies sells. I bought the header with a large rise, about 2 1/2" and
then I cut a section out of the header to set the rise at the value I needed. I
connected the header together with silicon tubing. The whole setup has given me
very good service. 
I heard you can't get the grieves pipe any more so you might try the ESD2c160L9
from Central, kind of spendy at $230. 
I did have a lot of trouble with the Webra when I was first setting things up
and what worked for me was installing a bladder, bubbleless, tank that I bought
from Central.
I can send you some pictures of my setup if you like.
 
--Gordon

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From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of paul
Sent: Saturday, December 17, 2005 7:58 AM
To: NSRCA Mailing List
Subject: [NSRCA-discussion] Need info Hydout header & pipe for Webra 145


    A friend has purchased a used Hydeout and decided to install a Webra 145.
Any suggestions on header and pipe to use ?  How much rise should there be on
the header.
TIA
Paul
NSRCA 3606



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