Lack of power..........help needed
Lack of power..........help needed
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Discussion

wessexrfc

Original Poster:

4,326 posts

215 months

Sunday 3rd October 2010
quotequote all
Taken the car out for a good run today, (weather was wet) on the way back I noticed if I held the car at around 3500 to 4000rpm, then floored it, sometimes it would cut out, almost like hitting the limiter. Checked the car over, all seems ok, did notice the fuel pump a bit noisey, could it be fuel starvation???? Has had an upgraded fuel pump and wiring, any thoughts????

andygtt

8,345 posts

293 months

Sunday 3rd October 2010
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definatelly turbos wink

snuffy

13,205 posts

313 months

Sunday 3rd October 2010
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Was it stuttering and spluttering ? It sounds like water ingress. Have a look in the plug wells.

YellowShed

587 posts

312 months

Sunday 3rd October 2010
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Paul,

Pipe collapsing ahead of the fuel pump. Change all pipework from tank to pump.

YellowShed

RobP

2,097 posts

270 months

Sunday 3rd October 2010
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YellowShed said:
Paul,

Pipe collapsing ahead of the fuel pump. Change all pipework from tank to pump.

YellowShed
..and replace with high pressure fuel hose (even if it's supposed to be on the low pressure side).

If you get clean acceleration when the car/engine bay is cold, and the symptoms you described only when the car is hot then fuel hose collapsing is the most likely cause of the cut-out. Known issue.

mgbond

6,749 posts

261 months

Sunday 3rd October 2010
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No expert but could it not be boost cut?

Bondy

andygtt

8,345 posts

293 months

Sunday 3rd October 2010
quotequote all
I modded the fuel tank to remove the 1metre of pipe prior to the filter and replace with 2inches... considering the filter is less than inch away from the tank its a joke that the outlet is the other side of the tank in the hottest place they could outlet the fuel.
The pipe I took off had a kink in it.

wessexrfc

Original Poster:

4,326 posts

215 months

Sunday 3rd October 2010
quotequote all
I feel it was on the fuel side, due to the fuel pump (which is noisey normally) making a stranger noise than normal.

R0162

2,435 posts

193 months

Sunday 3rd October 2010
quotequote all
I would check out what Andy and Trevor suggested, a kink in the fuel line could be very bad for the engine, Mike was telling me today to do this mod myself as Steve got bad engine damage from this exact same problem.

daddysumo

2,545 posts

242 months

Sunday 3rd October 2010
quotequote all
R0162 said:
I would check out what Andy and Trevor suggested, a kink in the fuel line could be very bad for the engine, Mike was telling me today to do this mod myself as Steve got bad engine damage from this exact same problem.


Yep for piece of mind I would just replace it... end of !
Oh and check the other end of the fuel line where it returns to the tank as if this is restricted it also has a bad affect on the fuel pump.

mr.man

511 posts

245 months

Sunday 3rd October 2010
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Had this symptom years ago. Main dealer huffed and puffed, even had the man from the factory to the garage. One of the older mechanics said "sure it's not a plug breaking down ?"

It was.

GTO400

1,877 posts

280 months

Sunday 3rd October 2010
quotequote all
Paul even if it's nothing to do with the fuel system l would look at replacing the fuel pipe from the tank to the pump, it's a rubbish design & poor quality pipe. In my opinion this is far more important than upgrading pumps unless you are running big bhp, while your at it change the fuel filter
Simon (tuxman) has come up with a great solution for the tank outlet & also aids the low fuel issue so might be worth having a chat with him.
Will be at the Show on Wednesday so can explain more then if you want.
Kevin

wessexrfc

Original Poster:

4,326 posts

215 months

Sunday 3rd October 2010
quotequote all
GTO400 said:
Paul even if it's nothing to do with the fuel system l would look at replacing the fuel pipe from the tank to the pump, it's a rubbish design & poor quality pipe. In my opinion this is far more important than upgrading pumps unless you are running big bhp, while your at it change the fuel filter
Simon (tuxman) has come up with a great solution for the tank outlet & also aids the low fuel issue so might be worth having a chat with him.
Will be at the Show on Wednesday so can explain more then if you want.
Kevin
Look forward to seeing you on Wednesday Kevin, you might even get a cup of tea! Will send Simon an email.

andygtt

8,345 posts

293 months

Monday 4th October 2010
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In all seriousness I would actually consider modding the tank, it will take a few hrs to remove tank completely but it will cost less than the proper quality 1m of pipe.

TuxMan

9,011 posts

267 months

Monday 4th October 2010
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not the best photo but you can see the -6 and -10 outlets with the cutout at the bottom .


GTO400

1,877 posts

280 months

Monday 4th October 2010
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I should be on commission Simon

wessexrfc

Original Poster:

4,326 posts

215 months

Monday 4th October 2010
quotequote all
Would anyone else what to do the mod, the more we could get together, the better the price??

CRB1

922 posts

271 months

Monday 4th October 2010
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Yes,

Probably me as well. Sounds just like the problem I've had for some time.

Chris.