george@t-c-m.co.uk Posted October 19, 2020 Share Posted October 19, 2020 Hello all, I need some advice. Is there any benefit from blanking of the fuel pump hole and installing a electric fuel pump ie will this make it more efficient or get any more bhp. Or keep the standard fuel pump and hook up a electric fuel pump as well. What are people’s thoughts. many thanks Quote Link to comment Share on other sites More sharing options...
ferny Posted October 20, 2020 Share Posted October 20, 2020 The job of the fuel pump is simply to supply components with fuel, so it never increases power but what you're supplying may. In your case, it only has to ensure the float bowls don't run dry. If you give them more fuel than they need, it'll just pour onto the floor Quote Link to comment Share on other sites More sharing options...
RobPearce Posted October 20, 2020 Share Posted October 20, 2020 No, there is no benefit at all in fitting an electric pump either as a replacement or an addition, unless your mechanical pump is faulty. Even then, refurbishing or replacing the mechanical pump may well be the better option. My Vitesse is now back to mechanical because the electric pump couldn't deliver enough fuel to maintain 70mph. There have been recent threads both on here and another club's forum from people whose (high quality and expensive) electric pumps weren't able to deliver enough fuel. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted October 20, 2020 Share Posted October 20, 2020 You do not need an electric pump on a Spitfire with standard set up of SU`s etc We have blatted around auto-solo`s and various other speed events (Cadwell etc) and all around Europe without any fuel starvation ,using mechanical pumps. If you are looking for power, then you have to start with all the basics, eg carb needles,intake,exhaust,cam,vernier timing ad en finitum ...you can keep going on with various things....lightened and balanced cranks,flywheel , con rods etc etc. You need to start asking questions and reading manuals on such a topic There are numerous experienced members , on such matters,within the club that you should really consider joining Quote Link to comment Share on other sites More sharing options...
george@t-c-m.co.uk Posted November 27, 2020 Author Share Posted November 27, 2020 Brilliant thank you guys Quote Link to comment Share on other sites More sharing options...
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