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11-25-2005, 03:46 AM
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#15
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by PADRIVER:
Thanks to you all for the great information. </div></BLOCKQUOTE>Thanks for joining us here in the WCMC Forum and we'll look forward to seeing you often.
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03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
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12-05-2005, 03:55 PM
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#16
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Senior Member
Join Date: Mar 2005
Location: Chattanooga, TN
Posts: 207
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After looking at my airbox intake snorkle I was thinking about something easy like a flat plate in front of the screen. There is a metal plate nearby that I could use as a mounting point then simply paint it black and extend it up high enough and wide enough to prevent water from blowing straight into the forward pointing snorkle.
Of course I would leave several inches of space to make sure there is plenty of airflow. A 496 engine needs a full 13,777 CFM of air at 4000 rpms and I dont want to do anything to slow that down.
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01-25-2006, 01:06 PM
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#17
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Senior Member
Workhorse Chassis Owner Rexhall Owners Group
Join Date: Feb 2003
Location: Everywhere,USA
Posts: 1,518
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The way mine is designed, the intake of the "tuba" is directly behind the grill. I get full on airflow straight into the "tuba". I have driven in a good rain before and never had a problem. The way I see it is the ones that need the seal on their hood must channel the water between the hood and body then dump it directly into the "tuba".
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Full-Timers
in a
2003 Rexhall Aerbus 3550BSL
W22 Workhorse
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02-09-2006, 08:37 AM
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#18
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Senior Member
Mid Atlantic Campers
Join Date: Feb 2006
Location: McVeytown, PA
Posts: 2,259
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A 496 engine needs a full 13,777 CFM of air at 4000 rpms and I dont want to do anything to slow that down.[/QUOTE]
This being said, I wonder how the heck these 8.1's can suck air through these rube-goldberg air induction systems ! All those bends and switch backs, poor motor is sufficatong
I wonder how well these brazels systems will do ?
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Steve, Pat, Hakbar, & Root Motor
2007 National RV Pacifica 36'
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02-09-2006, 09:19 AM
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#19
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Senior Member
Official iRV2 Sponsor
Join Date: Jul 2005
Location: CENTRALIA, WA
Posts: 1,526
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I just sent one to Driver,so we'll see what he thinks.So far we have had great responses.Teach had a small issue with his,in that it was just catching the edge of the grill opening & the incoming wind was making a little noise.
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Jon Brazel
Ultra RV Products / Brazel's RV Performance
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02-09-2006, 09:50 AM
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#20
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Senior Member
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 3,367
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by rotts4u:
A 496 engine needs a full 13,777 CFM of air at 4000 rpms and I dont want to do anything to slow that down. </div></BLOCKQUOTE>
13,777 CFM?? That'd feed 24 8.1's.
(A single one needs 574 CFM at 100% effciency.)
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Tim.
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02-09-2006, 12:56 PM
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#21
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Brazels RV
I just sent one to Driver,so we'll see what he thinks. </div></BLOCKQUOTE>We're going to do a R&R photo shoot so everyone will know how it's done. Hopefully you guys will be able to DIY @ home.
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03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
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02-09-2006, 01:09 PM
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#22
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by rotts4u:
A 496 engine needs a full 13,777 CFM of air at 4000 rpms and I don't want to do anything to slow that down. </div></BLOCKQUOTE>Back in the days of "yore", I recall working on a 396 Chevy and we put on a Holly 3 barrel 1300 CFM double pumper on a car that could turn just about 11.0 in a quarter mile. This thing was cammed, etc. etc.
"13,777 CFM" you quoted can be more accurately displayed as 13,777 CF(24)M.
... and your right! That is a lot of air.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
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02-09-2006, 01:34 PM
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#23
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Senior Member
Official iRV2 Sponsor
Join Date: Jul 2005
Location: CENTRALIA, WA
Posts: 1,526
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The mathematical way to figure it out is
(RPMxCID)/3456 CFM,the answer is 574.07 cfm to run an 8.1L big block chevy at 4000 RPM.
Good job Tderonne
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Jon Brazel
Ultra RV Products / Brazel's RV Performance
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