Skip to content
Aussieveedubbers

Suck or blow??

0 likes
Share Share on Facebook Share on X Share on Reddit
Log in to reply

mattie182 Wolfsburg Wizard

466 posts · joined Aug 2002 ·

#538347
Am setting up my fuel system for the EJ22 buggy, and was wondering, is it better to have the high pressure pump at the back of the car, or at the front??


Mat

[ Edited on 26-9-2006 by mattie182 ]
Once you go flat, you never go back!!!!!!

MickH Hairy Gutted Sloth

3,389 posts · joined Sep 2003 ·

#538354
I put mine at the front as they (high pressure pumps) dont like to suck for fuel....having said that , others have them at the rear and a low pressure pump installed to feed a surge tank so it will depend on how you set up your tank and pipework and your preference for the position of the pump.Where mine is at the front i have easy access and is close to the tank.👍 You will also need to run high pressure lines through the tunnel if the pump is at the front whereas only low pressure lines if the pump is at the back (I say lines as you need to run 2,one for the return line) I think the title should be "suck or push"

[ Edited on 26-9-06 by Mick H ]
tssnq.com.au

tassupervee That really hurts doesnt it!

1,171 posts · joined Sep 2003 ·

#538357
Well, its always best for these pumps to have a head of fuel at them and blow rather than have to pull the fuel.
So best place is below and close to the fuel tank.

Or:

A LP pump at the tank feeding a surge tank and the surge tank feeding the HP pump wherever you like to put them.

L8tr
E
Im not a complete idiot, quite a few parts are missing....

mattie182 Wolfsburg Wizard

466 posts · joined Aug 2002 ·

#538486
well,

I have the tank at the front, a low pressure pump feeding the surge tank also at the front. I would prefer to have the HP pump at the back, really only because of space


Mat
Once you go flat, you never go back!!!!!!

pete wood 23 Windows of Awesome

6,828 posts · joined Jan 2004 ·

#538560
the order should be...

main tank --> supply pump --> surge tank --> efi pump --> (efi filter) --> motor

location of the parts in the car is largely irrelevant as long as the order is correct.

BTW, make sure you flush your tanks out properly before using them or crap will clog the efi pump. 😉
"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/

MickH Hairy Gutted Sloth

3,389 posts · joined Sep 2003 ·

#538587
mattie182 wrote:well,

I have the tank at the front, a low pressure pump feeding the surge tank also at the front. I would prefer to have the HP pump at the back, really only because of space


Mat
Nah...heaps of space.....I did away with the surge tank,low pressure pump etc when i got the larger fuel tank made. Now the tank outlet is directly above the high pressure pump and the return directly to the tank. It looks a hell of a lot neater now. You can see the low pressure pump near the master cylinder and the high pressure one on the passenger side. All lines are high pressure stainless inside the tunnel to the motor at the other end.Fuel filter is at the rear near the engine. I wanted to minimise the possible amount of "leak points" at the engine end and wanted acess to the pump/filter easily if needed. HTH.

1 attachment · Log in to view

tssnq.com.au