The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
7/1: Members: Log In to See Fewer Ads! |
5/28: SAAB Evolutions/TSN T-Shirts $14
[General |
Members |
C900 |
9000 |
NG900 & OG93 |
93 |
95 |
NG95 |
99 |
Sonett |
Vintage Models |
Clubs |
Other Cars |
FAQs |
Gifts |
Member Photo Galleries |
Member Directory |
Classifieds |
Manuals |
*Buddy Registry |
*Mileage Registry |
Polls |
What's New |
Raffle |
Photo of the Month |
Sponsors]
[Main NG900 & OG93 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: modified airbox question...
Posted by Dean (more from Dean) on Mon, 18 Jun 2001 09:29:20
In Reply to: modified airbox question..., justin, Mon, 18 Jun 2001 09:03:20
Members do not see ads below this line. - Help Keep This Site Online - Signup
The 15" snorkle tube can e removed from the air box by twisting and pulling. Warming the end of the air box will help.
The funnel fits over the remaining boss. The boss internal leading edges can be blended out.
For a 3" tube, the front of the air box gets cut away.
For these mods, flexable tubing is not needed. But there are different kinds of flexable tubing. Make sure that you don't use anything that can collapse and get sucked flat. Consider the properties when the material is hot.
The 3" cut in and welded tube is definately a superior modification. But the slip on funnel mod is easy to do, simple and quite effective.
You suggested that a 5" funnel to a 2" opening is rather useless. But is is much much less restrictive than the 15" stock snorkle which has high entrance and exit losses. Yes the funnel has nearly the same exit losses. These losses are caused by changes to the flow speed. Whenever you speed up the flow and the slow it down abruptly, the kinetic energy is lost. Such things are dynamic losses. So the bigger the flow pipe the better, and in the extreme you get an open element filter. But cold air induction must remain the one design objective which is not compromised. The 3" tube creates much lower dynamic losses as it does not require the flow speeds of the 2" funnel cross section... for any given flow rate (cfm's).
You quickly get to the point where further effort must be focused on other areas of flow losses. My usual list of things, but the IC remains a bottle neck for the ng900's.
Posts in this Thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
StateOfNine.com
|
SaabClub.com
|
Jak Stoll Performance
|
M Car Covers
|
Ad Available
|
Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot
Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all
the Site Membership Benefits!