ITB conversion - in tank pump | The Z Club of Great Britain
  1. The Z Club relies on the support of it's paid members - join the club or renew your membership here.

ITB conversion - in tank pump

Discussion in 'S30 (240Z,260Z,280Z) Tuning & upgrades' started by Turn & Burn, Apr 26, 2019.

  1. Turn & Burn

    Turn & Burn
    Z Club Member

    I’ve been playing with this idea for ages, rather than go for an LP feeding a swirl pot and HP pump I thought I’d have a go at an in-tank HP pump, basically like all cars these days. It’s taken ages mulling which pump to try but I’ve taken the plunge with a Scooby WRX pump which should have capacity for anything an L series can deliver.
    Ive attached a few pics of progress so far this afternoon, I hope I’ve not made a terrible mistake cutting a really solid tank!
    Coming up with a suitable baffle design has been interesting, but hopefully should work ok......
     

    Attached Files:

    Mr.G likes this.
  2. Mr.G

    Mr.G
    Z Club Member

    I don't think you should worry about cutting the tank, you've done an excellent job there...

    I like the baffle design too.
     
  3. moggy240

    moggy240 INSURANCE VALUATIONS OFFICER Staff Member Moderator

    my mate is fitting an Aeromotive in-tank fuel system as used by youtube channel Mighty Car Mods on the their fairlady Z .this might give you a better idea.[​IMG]
     
  4. franky

    franky
    Z Club Member

    e36m3 fuel pumps would be a good option. they delivery 5 bar, are made for a high revving N/A application. They actually use two, one for each side of the tank. On my last kit car, with an m3 engine I did the same as I had fuel surge issues, even with a baffled/sumped tank. No issues after that, even down to the last 3ltrs of fuel.

    Fuel level sensor built in also.

    https://www.ebay.co.uk/itm/Fuel-Pum...en:E36&hash=item3b2c22fb77:g:ztkAAOSw1dxcd43U
     
  5. IbanezDan51

    IbanezDan51 Well-Known Forum User

    H
    How would this be retained? It would be in a lastic tank original I assume so harder to fit to a metal tank?
     
  6. franky

    franky
    Z Club Member

    you can buy the adapter rings, I had them tigged onto an alloy tank. For the next one, I ran the retainers off in a lathe, made a rubber gasket and made a compression fixing across the top.
     
    IbanezDan51 likes this.
  7. moggy240

    moggy240 INSURANCE VALUATIONS OFFICER Staff Member Moderator

    I only mentioned the aeromotive pump as you can clearly see the swirl pot section , as that is the important bit as it needs to keep fuel in it for the pump. The 300zx one was just a plastic square pot fastened to the bottom for the fuel tank with a hole in the side for the fuel pump to sit in. I might be able to get some sizes and better pictures of the aeromotive one if that will help you as he has not fitted yet
     
  8. Mr.G

    Mr.G
    Z Club Member

    I have one of those adapter rings for sale if anyone wants one...I was going down that route but decided to not go for an internal pump in the end, just had baffles welded in the tank instead. PM me for more details if of interest.
     
  9. Turn & Burn

    Turn & Burn
    Z Club Member

    There’s so much choice with this, I like the BMW one very similar to the Subaru one in style, but it also has no surge pot or baffles, these must be in tank already?
    My other option is Fiesta ST which I’ve also got, this has an integral catch pot and a pump that can be uprated.
    Again this needs a flange made but easy enough to sort.
     

    Attached Files:

  10. Turn & Burn

    Turn & Burn
    Z Club Member

    Did u still baffle inside the tank?
     
  11. franky

    franky
    Z Club Member

    just 'trap doors'
     
  12. Turn & Burn

    Turn & Burn
    Z Club Member

    Thanks, I’ll give this a go and see how it goes on track. I reckon a stock Subaru pump will support 350bhp.
     
    franky likes this.
  13. Turn & Burn

    Turn & Burn
    Z Club Member

    I’ll have a look on the aeromotive site, but a few pics of the swirl section would be great. I wateringly expensive kit!
     
  14. franky

    franky
    Z Club Member

    I think it be spot on. Great work
     
  15. johnymd

    johnymd
    Z Club Member

    Are all the 240/260 tanks baffled as standard? I know most of the ones I've looked inside are. Maybe just add trapdoors into the baffles that are already there?
     

    Attached Files:

  16. Turn & Burn

    Turn & Burn
    Z Club Member

    Pic attached, mines definitely baffled. That’s a good idea. U may still have to deal with front to rear slosh. It may be an extra insurance on mine as I’ve welded in my baffles now.

    Finished the top yesterday. Likes pretty neat apart from outlets face the wrong way so I’ll have to have a hose loop
     

    Attached Files:

  17. moggy240

    moggy240 INSURANCE VALUATIONS OFFICER Staff Member Moderator

    There are few videos on YouTube of people fitting the Aeromotive one. I won't be back at my mates house to take pictures for at least a month.
    How high will the fuel pick up be with your subaru pump off the bottom of the tank.
     
  18. Turn & Burn

    Turn & Burn
    Z Club Member

    I’ve cut the tank so the pump filter is pushed onto the tank base, it couldn’t go any lower. The baffles are 3” high.
    Out of interest the standard fuel pickup is at least 1” above the base.


    Sent from my iPhone using Tapatalk
     

Share This Page