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Location:
Sydney
Registered:
June 2004
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surge tank piping
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Sat, 19 February 2005 12:04
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just a quick one guys and yes i have searched but i need a moe specific answer...
with the surge tank it has 3 inserts at the top. obviously 2 are in to the surge and one out. but which one i which or more so which pipe should i place where?
should i do it like this:
- very top insert is surge back to main tank
- middle one is engine return to surge
- bottom is main to surge with lift pump in the middle
should the piping be configured in a different way? OR it doesnt really matter?
also with the lift pump do you guys have that connected directly to your ignition OR sun it with the same wiring as the high pressure pump?
i got the VL turbo pump which is controlled by the haltech F9
thanks peoples 
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: surge tank piping
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Sat, 19 February 2005 12:17
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| fade-e wrote on Sat, 19 February 2005 22:04 |
- very top insert is surge back to main tank
- middle one is engine return to surge
- bottom is main to surge with lift pump in the middle
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This is the way to do it.
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Location:
Melbourne
Registered:
May 2002
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: surge tank piping
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Sat, 19 February 2005 22:37
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Maybe this 3 fitting type allows for -
Top: Return to main tank
Middle: Feed from lift pump
Bottom: Feed to high pressure pump
+ Return from engine just dumps back into main tank ??
Lift pump should probably run when high pressure pump is on.
Correct me if i'm wrong
Cheers
-Phil
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I supported Toymods
Location:
Plumpton/sydney
Registered:
November 2003
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Re: surge tank piping
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Sat, 19 February 2005 22:46
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| fade-e wrote on Sat, 19 February 2005 23:04 |
with the surge tank it has 3 inserts at the top.
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If you slowed down and read this properly you would have realized that he wasn't talking about the outlet for the engine just the 3 holes at the top of the tank
Fade-e
wire the 2 pumps together
Ben
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Location:
Melbourne
Registered:
May 2002
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Re: surge tank piping
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Sun, 20 February 2005 01:10
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Ahhhhhh now i get it, it was a big day yesterday fishing and not actually catching anything
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Location:
Sydney
Registered:
June 2004
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Re: surge tank piping
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Sun, 20 February 2005 02:24
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| Siktoy ra23 wrote on Sun, 20 February 2005 09:46 |
| fade-e wrote on Sat, 19 February 2005 23:04 |
with the surge tank it has 3 inserts at the top.
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If you slowed down and read this properly you would have realized that he wasn't talking about the outlet for the engine just the 3 holes at the top of the tank
Fade-e
wire the 2 pumps together
Ben
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thats right, i have the main feed for the motor right at the bottom but thats an obvious answer so i didnt mention it. sorry guys for that i though it was just common, though i have seen surges with just 3 lines but mine is 4 with 3 right up top directly under each other
fattony: i dont seem to have permission to view that thread 
so with the lift i run it with the high pressure hey, there wont be an issue of the haltech over pumping the lift pump? im gonna get a pierburg pump...
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Location:
New Zealand
Registered:
May 2002
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: surge tank piping
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Sun, 20 February 2005 03:05
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you will want the lift pump to pump more if the rail is not returning to surge...
the bonus is that the EFI pump is working against 40psi or so, whereas the lift pump is free flowing with no resistance (except head heights)
easy to test... run the EFI pump for say..2 minutes pumping thru the pressure reg/rail and see what it flows.. the free flow the lift pump.. hold containers next to each other.. lift should be more
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Location:
Auckland NZ
Registered:
December 2003
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Re: surge tank piping
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Sun, 20 February 2005 05:59
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this is the setup i'm running (2 litre turbo RWD 1981 lancer, both pumps are external), works fine. i think as long as the drain back to tank is the highest and the lift pump isn't heading directly towards the supply pump's inlet (cavitation kills pumps) and the supply pump's inlet is at the bottom it should be fine.
cheers
Matt
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Location:
Melbourne
Registered:
May 2002
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Re: surge tank piping
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Sun, 20 February 2005 12:10
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Your better of with the 4 plug system on the surge tank as i have seen cars without them and ususally they have to swap from 3 to 4 just becuase all the unused fuel that you are pumping into the fuel system is going back into the main tank not the surge, so it genrally means your lift pump deosnt have to work no where near as hard if you got the return going back into the surge and then only when that fills does the main fuel tank get some petrol back.
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Location:
Sydney
Registered:
June 2004
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Location:
Sydney
Registered:
June 2004
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Re: surge tank piping
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Tue, 22 February 2005 02:39
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guys i need just a bit more info on this. more so the lift pump.
i went today to check out lift/pre pumps and they are all rated at like 6-7psi. these are electric fuel pumps. is this what i need? or do i require higher rating one?
the carter pump they had was 7psi. doesnt the high pressure pump run at like 40psi? and therefore if i wire them together to the haltech wouldnt the lift get over loaded?
thanks people
cheers
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Location:
Canberra
Registered:
May 2002
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Re: surge tank piping
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Tue, 22 February 2005 04:12
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Fade-e, what the parts guys are showing you are CARBY type fuel pumps.
What you require, for a lift pump, is just a base model EFI pump. Then you use your big BOSCH, or WALBRO HP pump.
regards Chuck.
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Location:
Perth
Registered:
June 2003
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Re: surge tank piping
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Tue, 22 February 2005 05:10
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lift pumps are generally low pressure high flow units. (thats not to say you couldnt use a efi pump as a lift pump though)
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Location:
Sydney
Registered:
June 2004
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Re: surge tank piping
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Tue, 22 February 2005 07:37
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so i can use a fuel pump from any car really?
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Location:
Perth
Registered:
June 2003
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Re: surge tank piping
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Wed, 23 February 2005 04:38
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yep. as long as it flows enough fuel it should be fine.
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Location:
melb
Registered:
March 2004
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Re: surge tank piping
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Wed, 23 February 2005 06:40
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sorry guys already did a search and couldnt get an exact answer. i'm in the same position as fade-e and i have an ae82 twinky efi fuel pump. i was just wondering is this a suitable lift pump? this will be running to a surge tank then a vl fuel pump powering a mild 4age.
thanks guys.
sab
ps sorry for thread jacking fade-e but i think its relevant 
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