Jump to content


Photo

What (External) Fuel Pump To Use (And What Presure)


  • Please log in to reply
6 replies to this topic

#1 Johnmar

Johnmar

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 172 posts
  • Location: Drenthe (NL)

Posted 08 August 2022 - 12:52 PM

Hi all,

 

As I plan to swap my fuel tank on the SPI to an other fuel tank (to be modified for Injection), I need to find out what my options are for the fuel pump.

 

As the new tank is quite shallow, I cannot get away with the mini SPI pump fitted into the tank. Perhaps if I could it sideways, it might fit, but chances are slim and I need to locate a different fuel strainer (that runs parallel to the fuel pump instead of perpendicular like original. Any pointers to such a screen/strainer are more than welcome.)

 

But I guess the best way would be to go the external fuel pump route. But at what pressure would be best (normal 1275 SPI need 1Bar/15 PSI I read)

 

Maximum fuel pressure at the fuel pressure regulator:

On the SPI there is afuel pressure regulator in the TBI (Throttlebody). How much presure could it sustain (would 45 PSI/3 bar be OK, as most in-line fuel pumps that I find are delivering 3 Bar or more).

 

 

If anyone has that information or links to that information I'd be very happy if you'd share them. Any experiance with an SPI and an external pump is welcome. (Part numbers even more ;))

 

Cheers,

 

Johnmar



#2 Johnmar

Johnmar

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 172 posts
  • Location: Drenthe (NL)

Posted 10 August 2022 - 08:57 PM

Nobody?

#3 mini13

mini13

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 3,810 posts

Posted 11 August 2022 - 08:18 AM

external pump?

 

https://www.fuelpump...cp012-529-p.asp

 



#4 Ethel

Ethel

    ..is NOT a girl!

  • TMF Team
  • PipPipPipPipPipPipPipPipPipPipPip
  • 25,934 posts
  • Local Club: none

Posted 11 August 2022 - 09:06 AM

 That's a find! But pricey, Bosch 44 clone & a pressure regulator?

 

...or is there a motorbike pump?????



#5 mini13

mini13

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 3,810 posts

Posted 11 August 2022 - 10:28 AM

reg might be the best bet, I cant see there being any SPI bikes, could be wrong tho.



#6 Johnmar

Johnmar

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 172 posts
  • Location: Drenthe (NL)

Posted 11 August 2022 - 12:25 PM

reg might be the best bet, I cant see there being any SPI bikes, could be wrong tho.

What do you mean with " reg might be the best bet"?

 

(lost in translation I guess at my end.


Edited by Johnmar, 11 August 2022 - 05:58 PM.


#7 mini13

mini13

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 3,810 posts

Posted 11 August 2022 - 12:37 PM

reg = Regulator, 

probably the cheapest solution is to use a generic external EFI pump and a turbo regulator set to 15psi ( pretty sure they will turn up to 15psi ok)






1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users