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14th July 2012, 10:11
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#1
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Regular Poster
Join Date: Sep 2011
Location: Patras Greece
Posts: 352
Car(s): Ford Focus 2.5 ST
Citroen Saxo Vts 16v race car
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Fuel pump & tank
As the title suggests ,
What fuel pump(s) , swirl pots and fuel tank does everyone use to compensate forfuel starvation in corners .
Personally with the oem setup , car would fuel starve even with half a tank of fuel...
Opinions , suggestions and photos welcome
BR
Alex
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14th July 2012, 10:32
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#2
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Regular Poster
Join Date: Sep 2008
Posts: 449
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Use oe pump to fill swirl pot, 1l or maybe 2l is big enough. Then theres plenty of oe inline pumps available on ebay ,motor factors ect. Theres no real need to go with fancy pumps. Just choose one from a car that has the same power sort of power that your runnng.
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18th July 2012, 16:02
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#3
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Saxperience Post Whore
Join Date: Jul 2011
Location: Newcastle upon Tyne
Posts: 7,779
Car(s): Phase 2 VTS , E61 M5
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Quote:
Originally Posted by scottie_436
Use oe pump to fill swirl pot, 1l or maybe 2l is big enough. Then theres plenty of oe inline pumps available on ebay ,motor factors ect. Theres no real need to go with fancy pumps. Just choose one from a car that has the same power sort of power that your runnng.
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fo sheezy?
so all the jazzy setups are overkill?
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Turtle neck, with another on deck, 'case I spill something on it, like some light beer, check!
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18th July 2012, 19:15
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#4
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Regular Poster
Join Date: Sep 2008
Posts: 449
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If your running big power then sure... Its worth the expense
The standard intank pump is capable of at least 180 -190 bhp. Its fuel starvation during cornering that saxo suffers from badly. So a swirl pot fed from the standard tank using the standard pump is fine.
Then as said previously theres a good choice of non branded inline pumps available to feed the engine from the swirl pot
Certainly no need to waste money on branded kit..... Unless your a bling king that is 
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18th July 2012, 20:14
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#5
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Saxperience Post Whore
Join Date: Jul 2011
Location: Newcastle upon Tyne
Posts: 7,779
Car(s): Phase 2 VTS , E61 M5
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So I stick a swirl pot after the existing pump
Then a pump after it, leaving the return back to the original tank?
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Turtle neck, with another on deck, 'case I spill something on it, like some light beer, check!
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18th July 2012, 21:21
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#6
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Regular Poster
Join Date: Sep 2008
Posts: 449
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Exsisting pump feed to swirl pot
Vent from swirl pot to tank
Feed from swirlpot via inline pump to engine
Return from engine back in swirl pot
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The Following 3 Users Say Thank You to scottie_436 For This Useful Post:
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19th July 2012, 09:48
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#7
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Saxperience Post Whore
Join Date: Jul 2011
Location: Newcastle upon Tyne
Posts: 7,779
Car(s): Phase 2 VTS , E61 M5
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Where's best for these bits then ?
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Turtle neck, with another on deck, 'case I spill something on it, like some light beer, check!
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3rd August 2012, 13:06
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#8
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Infrequent Poster
Join Date: Feb 2011
Location: Surrey
Posts: 192
Car(s): TVR cerbera, Saxo VTR
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I run my car at 900kgs due to regs, with a 3/4 tank of fuel and semi slicks and I dont get fuel surge! Make sure your pick up is pointing the right way, the saxo fuel pump has an in built swirl pot so should be ok unless running alot of power.
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The Following 2 Users Say Thank You to DanGT For This Useful Post:
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3rd August 2012, 13:21
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#9
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Saxperience Post Whore
Join Date: Jun 2006
Location: Ramsey st marys, peterborough
Posts: 8,288
Car(s): Saxo's, Corsa (Daily)
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Quote:
Originally Posted by DanGT
I run my car at 900kgs due to regs, with a 3/4 tank of fuel and semi slicks and I dont get fuel surge! Make sure your pick up is pointing the right way, the saxo fuel pump has an in built swirl pot so should be ok unless running alot of power.
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i still use the standard system on the track now for a few years, even with 1/4 tank i havnt had any fuel problems. i am changing to a different system, but that for different reason, but not had a problem yet.
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The Following User Says Thank You to AndySAXO For This Useful Post:
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3rd August 2012, 18:31
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#10
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Saxperience Post Whore
Join Date: Dec 2004
Location: Grimsby United Kingdom (England)
Posts: 5,489
Car(s): SUPERCHARGED saxo vts
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never had a problem with fuel either!
only fitting swirl pot now due to supercharger
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3rd August 2012, 18:37
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#11
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Infrequent Poster
Join Date: Apr 2012
Location: North West
Posts: 234
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Never had a problem either.
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4th August 2012, 07:31
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#12
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Saxperience Post Whore
Join Date: Oct 2005
Location: Sydney
Posts: 8,525
Car(s): Mango Westcoast
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I only had issues if I've got less than 1/4 going round gerrards (@mallory) which is the longest right hander in the country
I'm running the standard set up on my new engine so we will see how that fairs...
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4th August 2012, 14:29
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#13
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Saxperience Forum Bum
Join Date: Jan 2003
Location: Scotland
Posts: 3,380
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running tak low and high cornering or acceleration loads (1g+) then it is a problem on the saxo .
once you get below 1/3 to under 1/2 its a big problem .
if you haven,t had the problem --you ain,t going quick enough
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when the flag drops the bulshit stops.
owner of GMC motorsport 01671404030/01671403699
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8th August 2012, 21:19
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#14
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Infrequent Poster
Join Date: Feb 2011
Location: Surrey
Posts: 192
Car(s): TVR cerbera, Saxo VTR
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Quote:
Originally Posted by axsaxoman
if you haven,t had the problem --you ain,t going quick enough
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LOL! How are you measuring your cornering loads of +1g?
From experience of racing on many circuits in this country, the only places Ive had surge (running much less than a quarter of a tank) is at the bottom of craner curves at donny and coming out of luffield and round woodcote at silverstone. Doesnt really happen unless your running slicks or really low fuel. No point in spending £££ if you dont need to.
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11th August 2012, 09:08
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#15
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Saxperience Post Whore
Join Date: Dec 2004
Location: Grimsby United Kingdom (England)
Posts: 5,489
Car(s): SUPERCHARGED saxo vts
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^^ i would of guessed at data log.
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10th September 2012, 10:45
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#16
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Saxperience Forum Bum
Join Date: Jan 2003
Location: Scotland
Posts: 3,380
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no I am not measuring it --no need
if fuel is not in bottom of tank ,then the g force must be enough to make it move to one end of tank --yes its probaly not 1g on most cars
suspend a small wieght from the interior mirror and see how far it goes sideways in a long corner if you want to see what your fuel is doing in the tnak --but enough to cause a problem
__________________
when the flag drops the bulshit stops.
owner of GMC motorsport 01671404030/01671403699
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10th September 2012, 17:43
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#17
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Regular Poster
Join Date: Jun 2010
Location: lisboa
Posts: 308
Car(s): saxo 1600 cup trackday.
vw golf iv 150cv.
benz
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Quote:
Originally Posted by DanGT
LOL! How are you measuring your cornering loads of +1g?
From experience of racing on many circuits in this country, the only places Ive had surge (running much less than a quarter of a tank) is at the bottom of craner curves at donny and coming out of luffield and round woodcote at silverstone. Doesnt really happen unless your running slicks or really low fuel. No point in spending £££ if you dont need to.
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mesured or not...
its a real problem in a saxo , notisted many times at estoril PARABOLIC,
and starts at 1/2 fuel capacity..
its a FACT..
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11th September 2012, 19:12
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#18
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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An old pic but you can see my swirl pot. My 2nd pump is an Astra gsi in line pump.
I didn't used to suffer fuel starvation issues with my 166bhp engine (708 catcams & TB's) it only started when i fitted the new more powerful engine.
Last edited by Dave_P; 11th September 2012 at 19:34.
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11th September 2012, 19:22
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#19
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Super Moderator
Join Date: Nov 2009
Location: Cambridge(ish), UK.
Posts: 10,581
Car(s): BMW 5x M50d.
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But now removed as I drive like a pussy and want back seats.
Last edited by Ross; 12th September 2012 at 08:45.
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11th September 2012, 19:31
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#20
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Established Member
Join Date: Dec 2010
Location: Aberdeen
Posts: 2,129
Car(s): Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
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Potentially lethal! ^ 
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