1969-1984 [Subscribe to Daily Digest] |
 | [Main Saab Model 99 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: some info Posted by DougM [Email]  (#211)  [Profile/Gallery]
(more from DougM) on Thu, 29 Jan 2004 16:17:36
In Reply to: larger fuel tank, gert, Thu, 29 Jan 2004 11:12:46 Members do not see ads below this line. - Help Keep This Site Online - Signup |
75-80 99's list the capacity at 55 liters...sometime around 79 I think they went to a plastic tank. After 74, the 99's went to an in tank fuel pump unlike your pump in the well of the trunk. So, it's not just a matter of replacing the tank, but also running different fuel lines with an in-tank pump. Your 73 has metal lines which run through the body of the car and rubber fuel hose is used to connect from the engine to the metal line, and from the metal line to the tank and/or pump. 75 and up has plastic fuel line running through the body with special banjo fittings on the ends of the high pressure side line...75 and up also has greater running fuel pressures and pump capacities. The book lists pump capacity for 75 and up to be 90 liters/hour and for 74 down 50 liters/hour. Line pressure is also greater for 75 and up being between 64 and 72 psi and the control pressure is around 50 psi(regulated I think this means by the injection distributor?). 74 and down d-jet only uses a regulated pressure around 30 psi to feed the injected engine. Can the 74 and down fuel system even control the higher capacities and pressures?
What does this mean to me?.....fuel lines, tanks, and pumps are different as well as pressures and pump capacities. I have also heard that the older metal tanks are semi-glued into the car and are a bear to remove even though I have never personally tried to remove one.
79 and 80 C-900 also uses a 55 liter plastic tank. It wasn't until after 80 did they go to the 63 liter tank.
I could be 100% wrong in my assumptions that it can't be done, because there very well be someone out there who has done it. It just seems like to much thinking involved for me, which explains why my 99's are almost all stock.
posted by 68.68.16...
, Thu, 29 Jan 2004 16:17:36 <-- Viewing This Message
, Thu, 29 Jan 2004 22:15:33, Fri, 30 Jan 2004 07:29:40, Fri, 30 Jan 2004 02:51:33, Fri, 30 Jan 2004 18:27:08, Fri, 30 Jan 2004 09:07:22
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.
 |
 |
 |
 |
 |
