does any body know (or care) if it,s nessecary to put a swirl pot in your fuel tank when you put a vq v8 in your early holden
swirl pots
Started by
_wb 304_
, Aug 02 2011 08:06 PM
11 replies to this topic
#2
Dr Terry
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Posted 03 August 2011 - 07:50 AM
If you want you car to perform properly you definitely need a swirl pot, but it doesn't necessarily need to be inside the fuel tank. An external swirl pot will work just as well.
I've carried out many conversions of this type & have found is easier to just fit a complete Commodore fuel tank. The plumbing is easier & the pump much quieter.
You don't say what 'early Holden' yours is, but around at around 70 litres you will also gain fuel capacity if it's a pre-HK Holden.
Dr Terry
I've carried out many conversions of this type & have found is easier to just fit a complete Commodore fuel tank. The plumbing is easier & the pump much quieter.
You don't say what 'early Holden' yours is, but around at around 70 litres you will also gain fuel capacity if it's a pre-HK Holden.
Dr Terry
#3
yel327
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Posted 03 August 2011 - 10:26 AM
I hope Allan isn't referring to WB as an "early Holden"! It is a pretty late Holden 
. The last Holden for a long time, until VU and V2 release if memory serves me correctly?
American Autos sell an alloy external swirl pot quite cheaply too if you decide to go that way.
. The last Holden for a long time, until VU and V2 release if memory serves me correctly?American Autos sell an alloy external swirl pot quite cheaply too if you decide to go that way.
#4
_mumstaxi_
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Posted 03 August 2011 - 11:26 AM
Agree with the Dr, as a commodore tank complete with pump would be cheap as chips if you can fit one easy.
Think you guys might be getting a swirl pot and a surge tank mixed up ?
A swirl pot is "in" a fuel tank, as it is generally a open topped "pot" with sides to retain fuel around the pick-up area.
The external method is to use a "surge tank", this is seperate small tank outside the main fuel tank, a surge tank usually requires the use of a lift pump to extract the fuel from the main tank, then another pump (the high pressure one) from the surge tank to feed the eng.
MT
Think you guys might be getting a swirl pot and a surge tank mixed up ?
A swirl pot is "in" a fuel tank, as it is generally a open topped "pot" with sides to retain fuel around the pick-up area.
The external method is to use a "surge tank", this is seperate small tank outside the main fuel tank, a surge tank usually requires the use of a lift pump to extract the fuel from the main tank, then another pump (the high pressure one) from the surge tank to feed the eng.
MT
#5
Dr Terry
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Posted 03 August 2011 - 04:55 PM
Yes, that is correct, but they both are similar in operation & both serve the same purpose. A surge tank is just a swirl pot sealed at the top.Think you guys might be getting a swirl pot and a surge tank mixed up ?
A swirl pot is "in" a fuel tank, as it is generally a open topped "pot" with sides to retain fuel around the pick-up area.
The external method is to use a "surge tank", this is seperate small tank outside the main fuel tank, a surge tank usually requires the use of a lift pump to extract the fuel from the main tank, then another pump (the high pressure one) from the surge tank to feed the eng.
MT
There are many variations out there. The most common method is an in-tank swirl pot, with either a high pressure pump inside, or a lift pump inside plus an external high pressure pump, or finally a swirl pot in-tank with only the high pressure pump on the outside.
Dr Terry
#6
_wb 304_
_wb 304_
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Posted 03 August 2011 - 05:03 PM
Yes, that is correct, but they both are similar in operation & both serve the same purpose. A surge tank is just a swirl pot sealed at the top.
Think you guys might be getting a swirl pot and a surge tank mixed up ?
A swirl pot is "in" a fuel tank, as it is generally a open topped "pot" with sides to retain fuel around the pick-up area.
The external method is to use a "surge tank", this is seperate small tank outside the main fuel tank, a surge tank usually requires the use of a lift pump to extract the fuel from the main tank, then another pump (the high pressure one) from the surge tank to feed the eng.
MT
There are many variations out there. The most common method is an in-tank swirl pot, with either a high pressure pump inside, or a lift pump inside plus an external high pressure pump, or finally a swirl pot in-tank with only the high pressure pump on the outside.
Dr Terry
#7
_wb 304_
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Posted 03 August 2011 - 05:30 PM
thanks for help. doing it to wb ute at present .have tempory fuel set up with return going into T piece in breather and low presure pump pulling fuel out orignal line & feeding high presure pump but wanted safer option are going to do same conversion to hr ute if this one works out
#8
micklx
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Posted 03 August 2011 - 07:32 PM
I hope Allan isn't referring to WB as an "early Holden"! It is a pretty late Holden
How is a VU/V2 Australian but a VT/WH isn't ?
#9
View GaragePosted 03 August 2011 - 10:11 PM
I think he was saying that its badged as a 'Holden' model by Holden (as opposed to a 'Commodore' or 'Statesman' by Holden)
#10
_mumstaxi_
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Posted 03 August 2011 - 11:03 PM
Yes, that is correct, but they both are similar in operation & both serve the same purpose. A surge tank is just a swirl pot sealed at the top.
Dr Terry
I agree they both serve to reduce fuel starvation, but the title of each item (swirl pot or surge tank) describe two different items, one is part of a tank, one "is" a tank.
Think of it this way...... where do you use a swirl pot (a surge tank UN-sealed at the top) "externally", whilst not contained in some sort of tank ?
MT
#11
hanra
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Posted 04 August 2011 - 12:38 PM
This is an album of a surge tank install I did on my XR6 Turbo ute a couple of years ago.
http://s70.photobuck...e Tank Install/
http://s70.photobuck...e Tank Install/
#12
yel327
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Posted 04 August 2011 - 06:02 PM
I hope Allan isn't referring to WB as an "early Holden"! It is a pretty late Holden
How is a VU/V2 Australian but a VT/WH isn't ?
WB was the last Holden until VU release from memory. You say TX Gemini, LH Torana, VB Commodore and HJ Holden (on top of which you add the luxury level like LH Torana SL/R or HJ Holden Kingswood unless it is just a base model like a van or ute which is simply HJ Holden panel van)
Same for VU, it was a Holden utility. Like HQ was a Holden as opposed to LH being a Torana and VB a Commodore. So for an SS you got VU Holden SS ute (no mention of Commodore anywhere).
VT was a Commodore.
WT was a Statesman.
I may have stuffed up with V2, it may just be V2 Monaro, not meant to be V2 Holden Monaro.
That's what I was getting at. All got muddied later though once the Company ceased to be General Motors - Holden's Pty Limited and became Holden Pty Limited. So technically after that they are all Holden motor cars anyway and the Holden vehicle as a series based thing (like HQ) ceased to exist.
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