TimW Posted November 22, 2011 Share Posted November 22, 2011 Right after thinking about it for 18 months i finally have most of the bits to convert to EFIToday's task was removing the fuel tank and fitting a return Link to comment Share on other sites More sharing options...
Piero franchi Posted November 22, 2011 Share Posted November 22, 2011 Good work, keep us up to date with plenty off pics :)Good luck Link to comment Share on other sites More sharing options...
Scottie55 Posted November 22, 2011 Share Posted November 22, 2011 Nice one Tim, I'll be following your progress with interest :) Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 next is to make a swirl pot. I've used 150mm ali tube with a couple of punched disc's Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 you will notice that I have directed the chamfer cut inlets towards the sides of the tank in order to help reduce the air bubbles in the fuel. I should have this in the car tonight. I am still waiting for the fuel pump that will hopefully arrive tomorrow then i can run the fuel lines to and from the engine bay. Link to comment Share on other sites More sharing options...
Gt6s Posted November 22, 2011 Share Posted November 22, 2011 Not meaning to put a damper on your progress.One point about the fuel return, it needs to run to the bottom of the tank having it exiting at the top of the tank causes fuel airation. Not helpfull. Link to comment Share on other sites More sharing options...
Hugh Posted November 22, 2011 Share Posted November 22, 2011 339 wrote:next is to make a swirl pot. I've used 150mm ali tube with a couple of punched disc'sTim I would be keen to buy a swirl pot of you if you would make one for me please :) Also is the return inlet in the tank Tig or Mig welded. ;)Thank You CheersHugh Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 Gt6s wrote:One point about the fuel return, it needs to run to the bottom of the tank having it exiting at the top of the tank causes fuel airation. Not helpfull.Bo**ocks! I knew i should have checked before welding it!! can i maybe use a filter between the fuel return and the tank to help reduce this?? The return in my tank has been installed so that it runs to the corner radius of the tank in order to try and help and this return is also chamfered. Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 908 wrote:Tim I would be keen to buy a swirl pot of you if you would make one for me please :) Also is the return inlet in the tank Tig or Mig welded. ;)Thank You CheersHughHey HughYes mate with pleasure. The return in the tank is TIG welded. Link to comment Share on other sites More sharing options...
Hugh Posted November 22, 2011 Share Posted November 22, 2011 339 wrote:Bo**ocks! I knew i should have checked before welding it!! can i maybe use a filter between the fuel return and the tank to help reduce this?? The return in my tank has been installed so that it runs to the corner radius of the tank in order to try and help and this return is also chamfered.You could put a foam block in the tank to stop fuel surge and cut out the bubbles caused by the returning fuel ;) there is a race car parts supplier where you are they are on ebay too they have all the gear.CheersHugh Link to comment Share on other sites More sharing options...
Hugh Posted November 22, 2011 Share Posted November 22, 2011 339 wrote:Hey HughYes mate with pleasure. The return in the tank is TIG welded.Thanks Mate I would like to pop over when you install the lines and pump it will help me to see where I should run my lines, pump,etc it must be close to a Pi system I would thinkCheersHugh Link to comment Share on other sites More sharing options...
Gt6s Posted November 22, 2011 Share Posted November 22, 2011 You could allways feed the return into the swirl pot and use the pipe you have welded in to vent the swirl pot to the top of the tank.All is not lost. Link to comment Share on other sites More sharing options...
James Posted November 22, 2011 Share Posted November 22, 2011 Mine returns to the top of the tank - haven't had issues. Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 Gt6s wrote:You could allways feed the return into the swirl pot and use the pipe you have welded in to vent the swirl pot to the top of the tank.All is not lost.That is how i had intended it to work 8) 8) I'm sorry if i didn't make myself clear. Link to comment Share on other sites More sharing options...
Hugh Posted November 22, 2011 Share Posted November 22, 2011 339 wrote:That is how i had intended it to work 8) 8) I'm sorry if i didn't make myself clear.Ah well done then that man ;DHugh :) Link to comment Share on other sites More sharing options...
Deleted User Posted November 22, 2011 Share Posted November 22, 2011 Good work as always Tim, any update on your rear end?Rob Link to comment Share on other sites More sharing options...
tiggrr1 Posted November 22, 2011 Share Posted November 22, 2011 Looking on with lots of interest here Tim :)I am too looking to do something simlar, I was going to fit PI to my GT6 as you know ;)But may just skip that stage and flog most of the bits (except the manifolds and plenum) and go EFI.That way you can make the mistakes first and I can learn from them ;D ;D ;D Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 bobyspit wrote:Good work as always Tim, any update on your rear end?Robhey RobI'm still waiting for a slot in the drawing office in order to decide on a way forward I may be the boss but real paying work comes first!! ;D. I have been in hospital for a couple of weeks with a week recovery so have missed my slot in the drawing office. I'm hoping to look at it in the coming week. Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 OK!! Tank and swirl pot are now installed. I now just need to make a couple of brackets for the filter and pump. I have mounted the swirl pot on rubber bobbins and intend to also use these bobbins for the filter and pump. Just hope the pump comes in the post tomorrow.do you think it's big enough!! :) Link to comment Share on other sites More sharing options...
Gt6s Posted November 22, 2011 Share Posted November 22, 2011 jcarruthers wrote:Mine returns to the top of the tank - haven't had issues.I ran mine to the top of the tank once too, not just saying that off the cuff. Link to comment Share on other sites More sharing options...
TimW Posted November 22, 2011 Author Share Posted November 22, 2011 Just to clarify thingsI'm running supply from main tank via a low pressure pump to bottom of swirl pot/surge tankthen out bottom of swirl/surge into high pressure pump then into filter then out to enginethen return from engine to top of swirl/surge tankthen from top of swirl/surge to the top of the main fuel tank.and so it goes on! Link to comment Share on other sites More sharing options...
Gt6s Posted November 22, 2011 Share Posted November 22, 2011 339 wrote:Just to clarify thingsI'm running supply from main tank via a low pressure pump to bottom of swirl pot/surge tankthen out bottom of swirl/surge into high pressure pump then into filter then out to enginethen return from engine to top of swirl/surge tankthen from top of swirl/surge to the top of the main fuel tank.and so it goes on!Grand. Link to comment Share on other sites More sharing options...
James Posted November 22, 2011 Share Posted November 22, 2011 Gt6s wrote:I ran mine to the top of the tank once too, not just saying that off the cuff.I'm sure you weren't — just saying that mine doesn't have issues.However thinking about it - it's not really top of the tank — it's where the breather is for the filler — so it flows gently in to the big fat filler hose and then down in to the tank. Link to comment Share on other sites More sharing options...
Gt6s Posted November 22, 2011 Share Posted November 22, 2011 jcarruthers wrote:so it flows gently in to the big fat filler hose and then down in to the tank.Mine does not flow gently it actulally dumps quite a rate of fuel back to the tank. Link to comment Share on other sites More sharing options...
Hugh Posted November 23, 2011 Share Posted November 23, 2011 bobyspit wrote:Good work as always Tim, any update on your rear end?RobSteady on mate ;D ;D ;DWould it be advisable to filter the fuel after the tank but before the high pressure pump to prevent anything damaging the pump. I plan to do that and another filter at the end of the return line just to try and take out as much air as possible. I am on Pi though and it creates a lot of frothy petrol I have been told :) I am also putting a fuel cooler in the return line too. Hugh :B Link to comment Share on other sites More sharing options...
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