Tuesday, October 25, 2005
Wideband O2 sensor and surge tank
I also sat down and drew up a plan for my fuel system so I'll have some idea of what fittings, tubes, and connections it will need. Thanks to "Lamrith" from the Megasquirt forums, I plan to use a fuel filter as a surge tank. I'm using a Goldenrod industrial 10 micron fuel filter for this application. They may already call a slant six "agricultural" given its heavy and brute force design, but this project's getting even more agricultural with this mod. I bought the fuel filter at Tractor Supply, where it cost only $25 for both the filter and the mounting. You can't get more agricultural than hopping up your car with parts from Tractor Supply Co! Well, I suppose I could find a slant six powered combine and swap that engine in. (Seriously, they're out there. Slant sixes turn up in some surprising places.)
The drawback is that running a surge tank requires two fuel pumps. I've already got a Summit Racing electric pump for feeding the carb, so that pump will feed the surge tank. Then I will use a Carter high pressure pump (bought from a local auto parts chain; tell them you need one for a '89 Ford F150) to supply the injectors. This will mean that I'll have the current draw, and the noise, of two electric fuel pumps. But it sure beats adding baffles to my gas tank!
Labels: Dodge Dart