Today's Message Index:
----------------------
1. 05:26 AM - Re: 4 pipes (Ron and Shannon AWAD)
2. 05:46 AM - Re: 4 pipes (Deal Fair)
3. 06:28 AM - Re: 4 pipes (rob ray)
4. 03:59 PM - Re: 4 pipes (jadecuir@comcast.net)
5. 07:05 PM - All New BBS Interface For Matronics List Forums! (Matt Dralle)
Message 1
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--> RV4-List message posted by: "Ron and Shannon AWAD" <sawad13@msn.com>
The 4 pipes are a good bit louder than the 2 pipe systems. Other than that I
don't know which one is better.
Ron Awad
>From: "Steve Sampson" <SSampson.SLN21@london.edu>
>Reply-To: rv4-list@matronics.com
>To: <rv4-list@matronics.com>, <RV-4@yahoogroups.com>
>Subject: RV4-List: 4 pipes
>Date: Sun, 8 Jan 2006 20:37:42 -0000
>
>--> RV4-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu>
>
>I am mulling over the exhaust system and cross-overs .v. 4 pipes. Clearly
>the 4-pipe is cheaper. Is it also noisier? (Much?) Are there any other
>considerations?
>
>Thanks, Steve
>
>
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Message 2
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--> RV4-List message posted by: "Deal Fair" <dealfair@usawide.net>
Hi Steve, I don't believe there is any question that the "4 pipes" is louder.
I personally don't believe it is too much louder, but I like listening to aircraft
engines. The 4 pipes have a "different" tone---it is difficult to articulate.
They are pretty popular---try to hear a set before you leap. I believe
the 4 pipes gives one easier access to your engine as it is not wrapped up in
pipes and the straights are easier to manage. My opinion.
As to cost, be sure to order directly from Vetterman. Gene Smith told me to do
so after I had ordered from Vans. I called Vans, Van called Vetterman, got the
box---didn't even open it, packed it in another box, added $100.00 and $4.00
for handling and then shipped it to me at my cost. Merry Christmas Van!!!
My only gripe is that he could have at least unpacked it out of Vetterman's box
and not made me feel quite so stupid! Would have returned them, but want to
mount them this weekend.
Good Luck
Deal Fair
George West, TX
Do Not Archive
Message 3
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--> RV4-List message posted by: rob ray <smokyray@yahoo.com>
Steve,
My Vetterman 4-pipe is now 10 years old and approaching 1500 hours. Works good,
lasts a long time. It's been known by race car guys forever that tuned exhaust
with individual pipes for each cyllinder is the most efficient form of exhaust
gas expulsion for horsepower scavenging. I am convinced the Vetterman 4-pipe
achieves this better than any other system and does sound great as a side
benefit. I took the advice of a Reno racer and clipped the pipe tips where they
exit the airstream at a 45 degree angle for efficiency. There are aftermarket
tips which are squeezed oblong and have vent holes, supposedly THE most efficient
form of scavenging.
My bottom line is the pipes haven't cracked or given me any problems in 10
years of hard use and one slightly loose slip joint is the only sign of age.
One consideration is exit area from your cowling. I trimmed 2 inches off the
back of the lower aft cowling lip to allow more room for exit air. I also broke
Larry's rule and ceramic coated the pipes, lowering the temps across the board
20 degrees, including the cockpit.They look great too but Larry told me they
are very difficult to weld with the coating.
My 2 pennies...
Big thumbs up for the 4-pipe!
Rob Ray
Deal Fair <dealfair@usawide.net> wrote:
--> RV4-List message posted by: "Deal Fair"
Hi Steve, I don't believe there is any question that the "4 pipes" is louder. I
personally don't believe it is too much louder, but I like listening to aircraft
engines. The 4 pipes have a "different" tone---it is difficult to articulate.
They are pretty popular---try to hear a set before you leap. I believe the
4 pipes gives one easier access to your engine as it is not wrapped up in pipes
and the straights are easier to manage. My opinion.
As to cost, be sure to order directly from Vetterman. Gene Smith told me to do
so after I had ordered from Vans. I called Vans, Van called Vetterman, got the
box---didn't even open it, packed it in another box, added $100.00 and $4.00
for handling and then shipped it to me at my cost. Merry Christmas Van!!! My only
gripe is that he could have at least unpacked it out of Vetterman's box and
not made me feel quite so stupid! Would have returned them, but want to mount
them this weekend.
Good Luck
Deal Fair
George West, TX
Do Not Archive
---------------------------------
Message 4
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--> RV4-List message posted by: jadecuir@comcast.net
I just replaced the old crossover setup in my -4 with Vettermans crossover. It was $650.00 direct from Larry. His number is listed here: http://www.vansairforce.net/vetterman/VettermanExhaust.htm
He also sells the 4-pipe system. His systems come with all gakets and attachment
hardware. There are several places on the crossover for heatmuffs, and lots
of cowl clearance.
John DeCuir
N204CP, RV-4
SNS, CA
> I am mulling over the exhaust system and cross-overs .v. 4 pipes. Clearly the
> 4-pipe
> is cheaper. Is it also noisier? (Much?) Are there any other considerations?
I just replaced the old crossover setup in my -4 with Vettermans crossover. It was $650.00 direct from Larry. His number is listed here: http://www.vansairforce.net/vetterman/VettermanExhaust.htm
He also sells the 4-pipe system. His systems come with all gakets and attachment
hardware. There are several places on the crossover for heatmuffs, and lots
of cowl clearance.
John DeCuir
N204CP, RV-4
SNS, CA
I am mulling over the exhaust system and cross-overs .v. 4 pipes. Clearly the
4-pipe
is cheaper. Is it also noisier? (Much?) Are there any other considerations?
Message 5
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| Subject: | All New BBS Interface For Matronics List Forums! |
--> RV4-List message posted by: Matt Dralle <dralle@matronics.com>
Dear Listers,
I'm very proud to announce a completely new BBS interface is now available for
all of the Email Lists at Matronics! This is a full-featured system that allows
for viewing, posting, attachments, polls - the works.
But the best part is that it is *completely* integrated with all of the existing
email tools currently available at Matronics! What this means at the most basic
level is that, if you post a message to List from Email in the traditional
way, it will show up on the BBS system *and* get distributed to everyone currently
subscribed to the Email List. By the same token, if you are on the BBS
and post a message to a given List-Forum, the message will not only show up on
the BBS, but also be distributed to everyone on the Email List!!
It is really a very nice implementation and I am very pleased with its operation.
All of the tools you have come to know and love such as the List Search Engine
and List Browse and Download will still be available and contain all of the
latest posts. Think of the new BBS interface as just another method of accessing
the all of the Lists.
You can use the BBS to view all of the latest posts without having to do anything
except use your browser to surf over to the site. You can view and look at
all of the various List's posts. If you want to post a new message or reply
to an existing message from the BBS, you will have to Register on the BBS. This
is a *very* simple process and will only take a couple of minutes. There is
a small icon in the upper righthand side of the main BBS page labeled "Register"
to get you started.
I strongly recommend that you use the exact *same* email address you are subscribed
to the Email Lists with when registering on the BBS. Also, while not an
absolute requirement, I would really appreciate it if people would use their full
name when choosing their Username on the BBS (for example "Matt Dralle").
This just makes it easier for everyone to know who's posting. Also, I have enabled
the ability to upload a small user picture with your profile called an
"avatar". Please use a *real* picture of yourself *with* your cloths on! Thank
you! Maximum size of the bitmap is 120x120.
You can either be subscribed to the BBS, or any number of Email Lists, or both.
Registering on the BBS will allow you to email directly to all of the various
Lists. However, to receive direct List Email, you will need to be *subscribed*
to the various Lists as you have in the past. No changes here in operation.
I have added numerous links on the BBS pointing to the Email List subscription
page.
I've had the BBS connected to the Lists for about a week now, so its already loaded
up with a fair number of messages. You can post photos and other documents
directly to the BBS and links to them will appear in the List Email distributions.
Also, when any messages posted to the BBS are viewed in the List Email
distribution, there will be a URL link at the bottom of the message pointing
back to the BBS.
And here's what you've been waiting for -- the main URL for the new Matronics Email
List BBS is:
http://forums.matronics.com
Please surf on over, Register, and have a great time! I think this will be the
dawn of a whole new era for the Lists at Matronics!
Best regards,
Matt Dralle
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
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