Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > The Starting Line > Competition Vehicle Build Tech > Custom Fabrication
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Closed Thread
 
Thread Tools
Old 01-13-2019, 02:12 PM   #1
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
Forced Air Induction

Here's a little trick I'm trying out. A NACA Duct in bumper to sealed air box.
Attached Images
File Type: jpg DSC01967.jpg (185.4 KB, 0 views)
File Type: jpg DSC01966.jpg (246.7 KB, 0 views)
File Type: jpg DSC01965.jpg (237.7 KB, 0 views)
__________________
 
Old 01-13-2019, 05:28 PM   #2
mxhunter147
 
mxhunter147's Avatar

Name: mxhunter147
Title: Gear Head
Status: Not Here
Join Date: Apr 2011
Location: Cape girardeau, mo
Member`s Gallery
Posts: 187
Not sure how this will work driving in the rain especially with a sealed air box
__________________
06 Dodge 2500
Engineered Diesel, Exergy, Midwest Truck Products, MCN, Toops Performance

10.58 @ 129
 
Old 01-13-2019, 05:53 PM   #3
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
going to try avoiding bad weather Initial testing felt pretty good!
__________________

Last edited by Chassisman; 01-13-2019 at 06:01 PM.
 
Old 01-13-2019, 06:20 PM   #4
sootie

Name: sootie
Title: .....like a BAWSS
Status: Not Here
Join Date: Jan 2013
Member`s Gallery
Posts: 686
Not sure if serious?
 
Old 01-13-2019, 06:40 PM   #5
rdix7991
 
rdix7991's Avatar

Name: rdix7991
Title: Grumpy
Status: Not Here
Join Date: Apr 2009
Location: Tifton (aka Notfit), Georgia
Member`s Gallery
Posts: 1,050
It’s not worth the hassle. I’d like to know what you think though. I’ve tried this and just didn’t see any real improvement.
__________________
2000 Dodge 2500 SB Ext. cab 4x4. SOLD
1996 12V RCLB 4x4
1989 D250 2wd P-Pumped
 
Old 01-13-2019, 06:53 PM   #6
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
I'm hoping it's just getting air from a cleaner source than the wheel well/fender liner.
__________________
 
Old 01-13-2019, 08:29 PM   #7
RascalMafia
 
RascalMafia's Avatar

Name: RascalMafia
Title: heyyyyyyy girrrrrrrl
Status: Not Here
Join Date: Apr 2007
Location: Middle GA
Member`s Gallery
Posts: 4,915
Somewhat related, I remember a long time ago someone did a test on a 2002 LS1 Trans Am with the WS6 and without (keep in mind its N/A). The car had to go over 120mph for the Ram Air to add anything.

Sent from my SM-G960U using Tapatalk
__________________
'18 Chevy 2500
'14 Cruze Diesel - EFILive by Oz Tuner
'08 Corvette Z06 - Vengeance Racing H/C/I, 583 rwhp
'07 Kawasaki ZX10R - 175 rwhp


 
Old 01-13-2019, 08:47 PM   #8
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
more peace of mind for me I guess when driving offroad and not sucking dirty air from the engine bay or wheel wells. Also better looking/stealthy than a snorkel
__________________
 
Old 01-13-2019, 09:45 PM   #9
RacinDuallie
 
RacinDuallie's Avatar

Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 16,861
I am on the fence on this one.
__________________
 
Old 01-14-2019, 09:54 AM   #10
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
Quote:
Originally Posted by RascalMafia View Post
Somewhat related, I remember a long time ago someone did a test on a 2002 LS1 Trans Am with the WS6 and without (keep in mind its N/A). The car had to go over 120mph for the Ram Air to add anything.

Sent from my SM-G960U using Tapatalk
In that experiment they Probably just used a tube of some sort mounted behind the grill or in a headlight recess. I've seen some still do it that way with PVC pipe, but isn't very effective like you said... The duct that I used is 8 in across, then tapers down to 3in so it's gathering a lot more air and force feeding it.
__________________
 
Old 01-14-2019, 02:20 PM   #11
RascalMafia
 
RascalMafia's Avatar

Name: RascalMafia
Title: heyyyyyyy girrrrrrrl
Status: Not Here
Join Date: Apr 2007
Location: Middle GA
Member`s Gallery
Posts: 4,915
Quote:
Originally Posted by Chassisman View Post
In that experiment they Probably just used a tube of some sort mounted behind the grill or in a headlight recess. I've seen some still do it that way with PVC pipe, but isn't very effective like you said... The duct that I used is 8 in across, then tapers down to 3in so it's gathering a lot more air and force feeding it.
Factory optioned WS6 vs the regular Trans Am. In order for ram air to be effective (at least for N/A gas) it has to be a completely sealed system, which it looks like yours is.

Sent from my SM-G960U using Tapatalk
__________________
'18 Chevy 2500
'14 Cruze Diesel - EFILive by Oz Tuner
'08 Corvette Z06 - Vengeance Racing H/C/I, 583 rwhp
'07 Kawasaki ZX10R - 175 rwhp


 
Old 01-14-2019, 03:50 PM   #12
RacinDuallie
 
RacinDuallie's Avatar

Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 16,861
What's the gain sucking through 3" tube?
__________________
 
Old 01-14-2019, 05:41 PM   #13
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
Quote:
Originally Posted by RacinDuallie View Post
What's the gain sucking through 3" tube?
Probably nothing... But, I won't be sucking dirty air and dust an engine.
__________________
 
Old 01-14-2019, 06:33 PM   #14
RacinDuallie
 
RacinDuallie's Avatar

Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 16,861
Is going down in size gonna restrict the incoming air?
__________________
 
Old 01-14-2019, 07:14 PM   #15
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
It probably would if I didn't have a second larger hole in the air box. This will have to do until I can make some sheet metal fender liners. It sure is a lot easier to work on without them though!
__________________
 
Old 01-29-2019, 12:12 AM   #16
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
before and after...
Attached Images
File Type: jpg DSC01972.jpg (233.8 KB, 0 views)
File Type: jpg DSC01973.jpg (197.2 KB, 0 views)
File Type: jpg DSC01974.jpg (278.0 KB, 0 views)
File Type: jpg DSC01977.jpg (191.7 KB, 0 views)
File Type: jpg DSC01978.jpg (263.5 KB, 0 views)
File Type: jpg DSC01982.jpg (153.0 KB, 0 views)
__________________

Last edited by Chassisman; 01-29-2019 at 12:20 AM.
 
Old 02-04-2019, 08:40 PM   #17
RXT

Name: RXT
Title: Green Behind the Ears
Status: Not Here
Join Date: Dec 2015
Member`s Gallery
Posts: 36
Quote:
Originally Posted by Chassisman View Post
more peace of mind for me I guess when driving offroad and not sucking dirty air from the engine bay or wheel wells. Also better looking/stealthy than a snorkel
Quote:
Originally Posted by Chassisman View Post
Probably nothing... But, I won't be sucking dirty air and dust an engine.
Nice work but your engine shouldn't suck dirty air or dust if you have an effective air filter. At off road speeds you certainly won't benefit from any ram-air effect.

And it will be critical that you do avoid bad weather, because it won't be the rain, you'll have a problem with. It will be tire splash when you go try puddles and possible submersion if you have to drive thru deep water. If either should happen, you'll hydrolock the engine.

Honestly, the wheel well, fender area is a cleaner and drier place to draw air from. So long as you have a quality filter, any dust that blows into the engine compartment, will not get into the engine.

Ed
 
Old 02-04-2019, 08:55 PM   #18
smokinVE
 
smokinVE's Avatar

Name: smokinVE
Title: $$+VE=NO HP
Status: Not Here
Join Date: Aug 2011
Location: Desart
Member`s Gallery
Posts: 1,648
The Straight Scoop: Exploring the Science Behind Hood Scoop Design - OnAllCylinders

0.0000176 x air speed in mph² = ram pressure increase in pounds per square inch (psi).

“If you plug in the numbers, you’ll find an increase in inlet air pressure of .142 psi at 90 miles-per-hour. Standard atmospheric pressure is 14.7 psi, so this represents an increase of just under 1 percent. If the air/fuel ratio is adjusted to compensate for the increased pressure, there should be a corresponding 1-percent increase in horsepower. For a 1,200-horsepower Pro Stock engine, that’s a gain of 12 horsepower. Hood scoop pressurization increases dramatically at faster speeds: It’s 2 percent at approximately 130 miles-per-hour, and 3 percent at 158 miles-per-hour. At the magical 200 mile-per-hour mark, the theoretical pressure increase is .704 psi, or 4.8 percent. That equals 56 “free” horsepower.”


I think you should add a lamp shade to your bumper OP!!!
__________________
93 W250. Aeromotive feeding a Giles 9/16” VE feeding Weston injectors, Forced inductions 63&76.

Quote:
Originally Posted by jasonc View Post
I don't think they let hair sniffer twit much. Or the little gay guy. Only the Indian does.
 
Old 02-04-2019, 09:36 PM   #19
RascalMafia
 
RascalMafia's Avatar

Name: RascalMafia
Title: heyyyyyyy girrrrrrrl
Status: Not Here
Join Date: Apr 2007
Location: Middle GA
Member`s Gallery
Posts: 4,915
Forced Air Induction

^ that info is similar to what I was referring to earlier. Thanks for sharing that. It also doesnt take into account aerodynamic drag from the added scoops (thinking drag cars, not trucks) and whether or not the 1-2% in hp would overcome the increase in drag.
__________________
'18 Chevy 2500
'14 Cruze Diesel - EFILive by Oz Tuner
'08 Corvette Z06 - Vengeance Racing H/C/I, 583 rwhp
'07 Kawasaki ZX10R - 175 rwhp



Last edited by RascalMafia; 02-04-2019 at 09:42 PM.
 
Old 02-05-2019, 08:46 AM   #20
Chassisman
 
Chassisman's Avatar

Name: Chassisman
Title: Gator Out...
Status: Not Here
Join Date: Aug 2016
Member`s Gallery
Posts: 266
Quote:
Originally Posted by blackmega3500 View Post
Damn!

Ive been looking everywhere for my laundry vent hose!

Found it!

In theory, you'll get better flow from.....

Click the image to open in full size.
Well, the secret is out about my new billet 8 blade twin pin wheel turbos.
__________________
 
Closed Thread

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:16 AM.

 


Powered by vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2020, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com