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Fuel pump before remap ?

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Old Sep 1, 2009 | 11:48 AM
  #1  
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Default Fuel pump before remap ?

Should I get my fuel pump up graded before the remap ?

Is it worth doing ?

How much am I looking at ?
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Old Sep 1, 2009 | 11:49 AM
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Yes that's a definite mate!

About £50/£70 and you want a Walbro 255 Fuel pump!
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Old Sep 1, 2009 | 12:18 PM
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Theyre not expensive, you can do it yourself and yes: you really need to get it done before increasing your fuel flow requirements.
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Old Sep 1, 2009 | 12:24 PM
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Depends on what kind of power the car will be making, I was advised it's not really necessary until about 300BHP. Ran mine on the standard fuel pump for the last 9 months with nearly 290 and no issues at all.
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Old Sep 1, 2009 | 01:31 PM
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to be safe buy one mate go for a walbro one as already said think there about 70 pounds in most places and can be done at home by yourself, fuel pump is kept under the back seats on a newage not sure about a classic.
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Old Sep 1, 2009 | 02:45 PM
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It is in the boot on the offside right next to behind the seat on the classic. Just about can replace it wihout taking the seat out but hell of a lot easier with rear seat out. I was just lazy .
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Old Sep 1, 2009 | 04:28 PM
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£140 fitted ... I've booked it in .. I'm useless with this kind of thing ..
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Old Sep 1, 2009 | 06:25 PM
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Originally Posted by cossie-nutter
Yes that's a definite mate!

About £50/£70 and you want a Walbro 255 Fuel pump!

Where are you finding these for £50? If you're talking about new.

Cheapest I've seen is £80.
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Old Sep 1, 2009 | 07:05 PM
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70-80 pounds i have seen these everywer but not 50 pounds.lol wow 50-60 pounds for someone to put a fuel pump in you should have tryed it yourself its not rocket science.lol
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Old Sep 1, 2009 | 07:27 PM
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just had my uk classic remaped at engine tuner and martin said to uprate it before,that was just with decat system and sti top mount!
easy job to diy aswell!
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Old Sep 1, 2009 | 07:30 PM
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I do wonder if this 'Upgrade your Fuel Pump' is another ScoobyNet Myth ....

Think about it, the standard pump is not running at it's limit - I would guess that 50% of the fuel pumped to the engine is returned - as standard.

The poster above who stated that this so called 'upgrade' isn't needed with most power increases has it spot-on IMO.
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Old Sep 1, 2009 | 07:46 PM
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It would be simple to prove, find out how much juice a 2ltr 16v engine needs to burn in order to create 300bhp, then find out the lph speed of the original pump and work out if the standard pump on standard injectors can supply enough juice to create the target bhp.

Theres equations out there
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Old Sep 1, 2009 | 07:51 PM
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Originally Posted by SunnySideUp
I do wonder if this 'Upgrade your Fuel Pump' is another ScoobyNet Myth ....

Think about it, the standard pump is not running at it's limit - I would guess that 50% of the fuel pumped to the engine is returned - as standard.

The poster above who stated that this so called 'upgrade' isn't needed with most power increases has it spot-on IMO.
Prodrive fit one and they know what theyre talking about, in stark contrast to yourself.....
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Old Sep 1, 2009 | 07:54 PM
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Mark!!!

£140 mate?? There are always new ones on here going for the likes of £50 and i have the guide to fit them..come round to mine and we'll do it on the drive mate

Saving?? £90 :O
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Old Sep 1, 2009 | 08:01 PM
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I was told that the 2.5 litre fuel pump is much more capable and does not need changing unless your going for massive power, Im running 340/360 with no problem at all .
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Old Sep 1, 2009 | 08:01 PM
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On my classic, cap to fuel pump on the right.



Same place on the SpecD Just climb in

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Old Sep 1, 2009 | 08:19 PM
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Originally Posted by Simon 69
Prodrive fit one and they know what theyre talking about, in stark contrast to yourself.....
Is it beyond your comprehension that it could simply be a marketing tool? Maybe the pumps they fit are cheaper to them than the standard pumps?
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Old Sep 1, 2009 | 08:26 PM
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if your not running big power and your current pump is working fine then you can add a uprated one at a later date as its the fuel reg that controlls the fuel pressure not the pump.
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Old Sep 1, 2009 | 09:07 PM
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Seems like yet another thread on this forum has turned into an argument. Just be nice.

I was told by Andy Forest a while back that it wasn't absolutely necessary but if I put one on, I'd be future proof. Meaning I could go for bigger mods and I'd be safe.
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Old Sep 1, 2009 | 11:32 PM
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Since when has a difference of opinion been called an argument? Two different things .... I believe that the standard fuel pump is good for enhanced power, some do not take that view.

Both opinions are valid and can be aired. It's got zero at all to do with being 'nice' or otherwise.
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Old Sep 2, 2009 | 10:11 AM
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Originally Posted by SunnySideUp
Is it beyond your comprehension that it could simply be a marketing tool? Maybe the pumps they fit are cheaper to them than the standard pumps?
The back box certainly is ! thing is, for the sake of £80 it pays to think ahead at the beginning.
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Old Sep 2, 2009 | 11:16 AM
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for the price of a walbro fuel pump you might aswell do it than run into problems down the line and saying why didnt i just change that fuel pump when i was going to, most tuners when asking them about a remap on a wrx they most of the time mention installing a walbro fuel pump before the mapping date, bob rawle remapped my wrx and he recommened changing the fuel pump on my 2.5 ltr turbo before the remap because it is close to running 300bhp and has 340 ft/lb torque
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