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displaying posts 1 to 19 of 19
| Author | Subject: S/c stuttering |
 psjunkie
Seasoned Pro  Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #1
i have recently bought a low boost sc 6. It's a phase 1. When the tank gets down to maybe a 1/4 full or so it stutters when giving it someOnly way I can describe it is power then nothing then power again Does it mainly in 2nd and 3rd I'm wondering if the fuel pump is struggling to pickup below this. Any ideas? ________________________________________ 1997 P1 Gti 6 Charged |
 Posted 28th Apr 2015 at 20:12
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pugheaven
Seasoned Pro  Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
Post #2
Will be fuel starvation, phase 1 tanks are not baffled like 2/3s, either fit a phase 2/3 tank or fit a swirl pot and uprated pump |
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Posted 28th Apr 2015 at 20:18
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psjunkie
Seasoned Pro Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #3
I've just noticed from scanning a previous owners posts he's fit a mrdeey Regular Location: nearerthanuthink Registered: 14 Feb 2011 Posts: 200 Status: Offline +1 -1 Post #10 Put a new Walbro gss 341 in place of the original , and a replacement Bosch 3 bar regulator from a golf , now working fine ________________________________________ now new booted , boosted and flying again! Could this be something to do with it? Or is it defiantly the non baffled tank? ________________________________________ 1997 P1 Gti 6 Charged |
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Posted 28th Apr 2015 at 20:19
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psjunkie
Seasoned Pro Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #4
Thanks for the reply pugheaven________________________________________ 1997 P1 Gti 6 Charged |
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Posted 28th Apr 2015 at 20:20
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6waysforward
Seasoned Pro  Location: Benfleet essex Registered: 30 Oct 2005 Posts: 3,168 Status: Offline |
Post #5
ph1 fuel pumps and poss the tank are different.Farmer used to have a lb ph1 and he bought my ph2 pump and tank as he had starvation issues. Think even standard ph1s get fuel starvation. Get a swirl pot fitted or get a used ph2 tank and pump.  ________________________________________ ***Breaking*** Ph3 Silver GTI 6 High Boost |
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Posted 28th Apr 2015 at 20:23
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6waysforward
Seasoned Pro Location: Benfleet essex Registered: 30 Oct 2005 Posts: 3,168 Status: Offline |
Post #6
pugheaven wrote: Will be fuel starvation, phase 1 tanks are not baffled like 2/3s, either fit a phase 2/3 tank or fit a swirl pot and uprated pump f**k it, you beat me to it  ________________________________________ ***Breaking*** Ph3 Silver GTI 6 High Boost |
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Posted 28th Apr 2015 at 20:23
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psjunkie
Seasoned Pro Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #7
I'll get a swirl pot as I cba changing the tank. I'll just mount it where the spare used to be. Any pointers on what to go for and what pump to use?________________________________________ 1997 P1 Gti 6 Charged |
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Posted 28th Apr 2015 at 20:25
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6waysforward
Seasoned Pro Location: Benfleet essex Registered: 30 Oct 2005 Posts: 3,168 Status: Offline |
Post #8
Pretty sure you could retain the standard pump with a swirl pot seeing as its not pressure thats the problem.You would need a rich w jobbie to mount under to boot floor but join the fing que as i need one to ________________________________________ ***Breaking*** Ph3 Silver GTI 6 High Boost |
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Posted 28th Apr 2015 at 20:31
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pugheaven
Seasoned Pro Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
Post #9
Get the swirl pot from rich w and a 044 pump, rich could probably get you a deal on the pump too |
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Posted 28th Apr 2015 at 20:31
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psjunkie
Seasoned Pro Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #10
Cheers lads ! First charged 6 I ain't got a clue haha. ________________________________________ 1997 P1 Gti 6 Charged |
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Posted 28th Apr 2015 at 20:33
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pugheaven
Seasoned Pro Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
Post #11
I would imagine you would need another pump after the swirl pot! The fuel will take the easiest route with the least resistance so would just return to the tank from the pot plus you wouldn't get the pressure to the regulator |
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Posted 28th Apr 2015 at 20:34
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6waysforward
Seasoned Pro Location: Benfleet essex Registered: 30 Oct 2005 Posts: 3,168 Status: Offline |
Post #12
pugheaven wrote: I would imagine you would need another pump after the swirl pot! The fuel will take the easiest route with the least resistance so would just return to the tank from the pot plus you wouldn't get the pressure to the regulator This is a good point, didnt think about it returning. Maybe i will shut up and let ollie answer the questions now.  ________________________________________ ***Breaking*** Ph3 Silver GTI 6 High Boost |
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Posted 28th Apr 2015 at 20:39
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armzsc6
Seasoned Pro  Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #13
I have a brand new rich W upside down swirl pot sat at work doing nothing..... Shall we start the bidding at £300 ________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 28th Apr 2015 at 20:51
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armzsc6
Seasoned Pro Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #14
In all seriousness changing the tank is a much easier option and cheaper! ________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 28th Apr 2015 at 20:53
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psjunkie
Seasoned Pro Location: Halifax Registered: 31 Aug 2007 Posts: 1,565 Status: Offline |
Post #15
Means dropping beam and trying to get a 20 year old tank out tho ??Would any swirl pot do ? ________________________________________ 1997 P1 Gti 6 Charged |
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Posted 28th Apr 2015 at 21:09
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pugheaven
Seasoned Pro Location: Fareham Registered: 17 Dec 2006 Posts: 4,602 Status: Offline |
Post #16
You don't need to drop the beam to change the tank! Wiring would be the issue, phase one has a separate pump and sender unit and phase 2/3 are one unit so the wiring for that would need changing!I personally would go down the swirl pot route, that way it's already fitted for when you go high boost  |
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Posted 29th Apr 2015 at 05:55
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Ben_W
Formerly gpm  Location: Lutterworth Registered: 01 Sep 2007 Posts: 2,941 Status: Offline |
Post #17
As pughaven says.I think it's 4 bolts to remove the tank. Need to disconnect the handbrake cables first as they are (on a Ph2 anyway) held by the tank straps.... Just disconnect the three fuel lines and the elbow from the filler, do the 4 bolts and out it comes. Just be careful undoing the nuts. The nuts and studs on mine were crusty as you like. Managed to shear one stud and I was even being heavy handed... ________________________________________ Cherry Red Rallye .... On going OEM spec restoChina Blue GTi6 .... Weekend toy Black 208 GTi .... Wife's car now Silver BMW 550i.... The executive missile |
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Posted 29th Apr 2015 at 07:06
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armzsc6
Seasoned Pro Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #18
Yup that's pretty much it. I'd just take the wiring plug from a phase 2/3 as well I presume it's only live and earth for the pump and input and output for sender.... 4 wires isn't difficult to solder. But yes if you are ever going to think about high boost you could do the swirl pot. But it's quite expensive... Rich W ones are £175 plus a Bosch O44 plus all the extra pipework clips mounting brackets etc etc it soon adds up to a good few hundred quid. Or a cheap tank 4 rusty bolts a filler neck to remove and a few wires and clip on pipes. ________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 29th Apr 2015 at 07:56
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rich_w
Seasoned Pro  Location: Havant, Hampshire Registered: 29 Jul 2004 Posts: 5,412 Status: Offline |
Post #19
The issue is he's put a Walbro in place of the standard pump - the way the pickup is designed on the Walbro pumps mean you get this starvation issue.As others have said, get a swirl pot and Bosch 044, or change the tank and fit a known good OEM pump. ________________________________________ Contact Details:rich@lynxpowerengineering.co.uk 07732 822546 |
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Posted 4th May 2015 at 13:30
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