going to be doing a surge tank set up in the next week or two but what i need to know is the stock intank pump going to be able to keep up went i turn the boost up?
I'll be running a vl[bosch 050] pump off the surge tank but just not sure about what to use as a lift pump without it being and over kill like the 040 being that the whole set up is a bit of an over kill some may say
but as we all know I love my bits of bling
For me, If i was to use an external pump, Id loose the stock intank job and use a decent low pressure electric pump for a V8. Like a Facet type.
They will lift well and dont stall when surged.
So long as you return the engine back to the surge tank you should be just dandy!
L8r
Oracle
Forcd4 wrote:Oh fuk no dude it's you a again, the oracle.
I reckon youll struggle to find anything S/H m8.
Reason is anything old enough to have a carb will have an engine pump.
Just go new m8, repco et-al.
Im just not a fan of using small efi pumps as lift pumps due to faily low no pressure flow rate is all.
Just remove the stock intank and fit in a pickup pipe down to near the bottom of the swirl pot.
If you can get a rooted complete tank or a spare pump/fuel sender cradle, just gut out the existing delivery line from the old pump and fit up a 10mm tube in there and braze into the top plate.
Make sure you bracket the tube to the cradle somewhere down near the bottom of the cradle so the tube can vibrate around and possibly crack.
10mm line down to your lift pump which, for best results should live at the level of the boottom of the fuel tank, if possible. Low as you can get it tho is very best.
Then feed that 10mm line forom the pump to your surge tank.
Plumb your surge tank to pressure pump in 12mm if possible with the pump at the level of the bottom of the surge tank.
Then its a doddle to plumb up your engine pressure and return lines and your good for 500 Hp +!!! LOL
L8r
E
Forcd4 wrote:Oh fuk no dude it's you a again, the oracle.
Sometimes returning the fuel just to the surge tank can enable it to get hot. That fuel is constantly in the "feed engine loop" and gradually warms up. When it's dropped back into the main tank it cools and fresh cool fuel gets lifted to the surge tank. Overheated fuel aint great.
Callumgw wrote:Sometimes returning the fuel just to the surge tank can enable it to get hot. That fuel is constantly in the "feed engine loop" and gradually warms up. When it's dropped back into the main tank it cools and fresh cool fuel gets lifted to the surge tank. Overheated fuel aint great.
C
read that it don,t matter power wise and that if do it would be so miner that it wouldn't be noticable, fire is my main concern but i got a red bottle of fire out http://www.ebay.com.au/itm/220817258484 ... 434.l2649d
my lift pump
zoomzoom
Yer zactly.
The lift pump should be yards higher in flow than the presure pump. Fuel heating is not an issue at all. Its something that got set in motion years ago and everybody jumped onto it.
In fact with Holden Gen 3 engines, there is NO return from the fuel rail at all. Its a "static" system. The fuel in there is actually heated by the engine for better atomisation.
L8r
E
Forcd4 wrote:Oh fuk no dude it's you a again, the oracle.
