dandan Posted June 16, 2006 Share Posted June 16, 2006 Anyone know what the perceived limit is flow wise with one stock fuel filter? At what sort of power levels do people generally swap it out? Can anyone tell me the threads sizes entering and exiting the filter please? Thanks Dan Quote Link to comment Share on other sites More sharing options...
merckx Posted June 16, 2006 Share Posted June 16, 2006 Best to get a second opinion on these. Input 14 x 1.5 on the union nut. (Flared pipe) The output is a banjo bolt 12 x 1.25. Quote Link to comment Share on other sites More sharing options...
Alex Posted June 16, 2006 Share Posted June 16, 2006 Basically it comes out when you need to run bigger lines like -6... I'd say take it out when going over 500RWHP. Quote Link to comment Share on other sites More sharing options...
Kranz Posted June 16, 2006 Share Posted June 16, 2006 Basically it comes out when you need to run bigger lines like -6... I'd say take it out when going over 500RWHP. Or run two in parallel?? Quote Link to comment Share on other sites More sharing options...
Terminator Posted June 16, 2006 Share Posted June 16, 2006 Two stock or two after market? Quote Link to comment Share on other sites More sharing options...
Alex Posted June 16, 2006 Share Posted June 16, 2006 EDIT IGNORE THIS!!!! lol No way...there should be just 1 fuel pressure regulator, you can't use two in parallel. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted June 16, 2006 Share Posted June 16, 2006 Think they are talking Filters Alex? Quote Link to comment Share on other sites More sharing options...
Alex Posted June 16, 2006 Share Posted June 16, 2006 Think they are talking Filters Alex? Ignore everything I've written...I was asleep when I first read the thread...doh I'm going back to bed EDIT - Actually my first post still stands Quote Link to comment Share on other sites More sharing options...
Kranz Posted June 16, 2006 Share Posted June 16, 2006 Two stock filters in parallel. Should allow the fuel to flow sufficiently with -6 lines? Quote Link to comment Share on other sites More sharing options...
Alex Posted June 16, 2006 Share Posted June 16, 2006 Two stock filters in parallel. Should allow the fuel to flow sufficiently with -6 lines? Why would you bother though? If you're going to run a new line it might as well be a single -8 and -8 fuel filter...keep it simple and you reduce the risks. IMO. Quote Link to comment Share on other sites More sharing options...
dandan Posted June 16, 2006 Author Share Posted June 16, 2006 I know people take it out when they upgrade the fuel lines. By what you've said Alex, anyone genuinely in need of 650's is on the limit of the stock filter's capacity. Simply swapping out 440's (or even 550's) and dropping in the 650's would potentially leave a problem with the stock filter. Any reasoning/investigation behind saying the filter is restriction at 500rwhp? Anyone ever investigated when the filter actually becomes a problem? Any flowrate or pressure figures around anywhere? Quote Link to comment Share on other sites More sharing options...
Kranz Posted June 17, 2006 Share Posted June 17, 2006 Why would you bother though? If you're going to run a new line it might as well be a single -8 and -8 fuel filter...keep it simple and you reduce the risks. IMO. Well I'm going to run two in parallel as I have a box of 20 to use up Quote Link to comment Share on other sites More sharing options...
TLicense Posted June 18, 2006 Share Posted June 18, 2006 I'm fitting an aeromotive fuel filter. Having a system that splits at or before the fuel filters would be even more expensive. I'm ordering the lines and fittings on monday morning for a complete new set-up and it's already costing £850 odd quid (not including the twin pump hanger - ) That's a single line up to an aeromotive filter and splitting afterwards to the rail. Of course that's all braided lines and aeroquip fittings, so I guess it could be done cheaper. As far as the flow rates of the stock filter, I'm not using it, not because I know something other don't. It's just that most components will be designed with the rest of the system in mind. Measuring the flow rate, or pressure drops before and after the filter will be a bit tricky, so it's easier just to play it safe, and run two stock, or maybe a high flow rate filter. Quote Link to comment Share on other sites More sharing options...
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