has anyone installed a FASS fuel pump system on their truck. just want to make sure i buy the system that is going to work the best!
I'll bet ALOT smaller than his avatar! Sorry, couldn't resist but rest assured I read EVERY one of his posts! :ro)dang. now you got me thinking about injectors again! hmm well I am planning on getting a pump first and then putting some injectors in. When i am installing the pump i will be sure to put it on the right line! how big were the injectors you had!
Can't tell you the % over, ATS advertised them and 95hp.dang. now you got me thinking about injectors again! hmm well I am planning on getting a pump first and then putting some injectors in. When i am installing the pump i will be sure to put it on the right line! how big were the injectors you had!
DD you ask very good questions, but yes to where the fuel was being picked up. The CP pump was pulling fuel the normal way and since I had the big injectors I don't know what was going on in the return line except that the FASS was pressurizing it at least to some extent. There was a lot of noise coming from the FASS at times, like a washing machine that is running out of water on the empty cycle. Never saw anyh fuel flowing back into the fuel filler line from the pressure bypass line on the FASS so I may not have been getting much fuel and therefore much pressure. Had I had a fuel pressure gauge when we installed it we would have know there was something wrong. But since it was trying to pick up fuel through the return line it may infact was sucking that line flat and therefore not getting much fuel. I sure the stock fuel filter was working because Kennedy's fuel pressure gauge showed the fuel pressure to be what you would expect with no lift pump. As I said, the truck ran pretty good. After Max Payne took off the big injectors the checked the rail pressure with the TECH 2 and everything looked good. I also had a Duramaximizer on the truck and you could tell no difference with it on or off. We all assumed it was the big injectors but maybe the incorrect plumbing of the FASS contributed to that as well. Anyway sold the FASS and it works well, give the new owner a good warning on getting the plumbing right. MITUSA this weekend and get the twins tuned and KATTIE BAR THE DOOR!!!!:grd:subman
So you were sucking the fuel out of the tank by using the return nipple on the sending unit ?
That could work because the return line actually goes down into the fuel cup near the pickup, but not very well because the fuel line is smaller and there's no real pickup just a small diamater manifold.
And you were pushing fuel Backwards through the return line up to the engine ?
If fuel was running backwards in your system how did the CP3 work that way ?
If the fuel was running backwards how was your fuel getting filtered ? I don't think it was.
(note to self: keep subman away from my fuel system)