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 Performance Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
here's a few pump graphs
Posted by davenew (more from davenew) on Fri, 12 Dec 2003 05:48:03
In Reply to: Brad, your comments on max pump press. intrigue me, JT, Wed, 10 Dec 2003 17:40:13
Members do not see ads below this line. - Help Keep This Site Online - Signup
I'm not sure which model pump saabs use. You can see from the graphs that having 13.5V will help flow by 5-8 gall./hr. It's interesting that all four 24lb/hr injectors running wide open should inject a total of around 17 gallons/hour. To maintain the rated 2.5 bar (36psi) pressure difference on the injectors, the fuel rail pressure needs to be 36psi higher than boost, or 25 psi boost+36= 61 psi. at 25psi boost. If the injectors were rated at 3 bar, rail pressure at (25psi boost) needs to be 43.5+25= 68psi.
My question is: at those pressures, don't all the fuel pumps listed flow more than 17gph? If we aren't getting enough flow, the only explanation is the fuel supply line creates quite a bit of pressure loss at max fuel flow. This is all speculation and assumes we use one of the walbro pumps listed.. I didn't double check my numbers either.
dave
posted by 68.10.24...
http://www.gnttype.org/techarea/fuelsystem/walbroflow.html
Posts in this Thread:
- Brad, your comments on max pump press. intrigue me, JT, Wed, 10 Dec 2003 17:40:13
- here's a few pump graphs, davenew, Fri, 12 Dec 2003 05:48:03 <-- Viewing This Message
- Re: Brad, your comments on max pump press. intrigue me, Brad, Wed, 10 Dec 2003 19:30:13
- Try checking the voltage at the pump..., SteveW, Fri, 12 Dec 2003 11:02:21
- Re: Brad, your comments on max pump press. intrigue me, JT, Thu, 11 Dec 2003 16:06:40
- Numbers, Brad, Thu, 11 Dec 2003 13:45:35
- Re: Brad, your comments on max pump press. intrigue me, gorper, Wed, 10 Dec 2003 18:14:31
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
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
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!