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Thread: Max bhp for standard fuel pump on A3 8L

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    Max bhp for standard fuel pump on A3 8L

    Hi all

    ive now got my gt28 71r fitted and before i waste my time mapping the car on the rolling road

    but whats the max bhp i can go on my standerd fuel pump ?

    i have searched asn and google cant find a answer

    its a a3 8l agu 1.8t

    can i fit a s3 pump will it fit ?

    thanks

    John

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  3. #2
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    Chances are, the car has covered a fair few miles. The original pump will be knakered. If you've gone to the extent of fitting a gt28 to the car a new pump will be a definite before its mapped.
    When I eventually get round to fitting a bigger turbo to mine, a new pump will be high up on the list to replace aswell. Don't want to drive all that way, waste niki or bills time to find out full potential can't be reached because I've cut corners

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    if i get a new one will it flow enought

    i work on a rolling road so i can map it myself , so wont be wasting time or money if it dont flow enought just want to no if i need to upgrade or just fit a new one

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    As already said these pumps have done some work already and I have seen loads starting to fail... we get it all the time at Bill's....

    I believe Prawn uses an S3 or LCR pump as these are rated higher than the std A3 one... A new S3/LCR pump should fuel enough for hybrid power typically but seeing as the GT2871 can go to 360hp I would personally I would fit an inline pump to compliment the intank... either way I would change the current intank regardless

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

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    Stock lcr pump here, a3 one couldn't fuel 230bhp after 150k miles and ran lean.

    Lcr pump going strong currently, but if I'm honest I think I'm on borrowed time.
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    Prawns TFSI Turbo'd 1.8T Track Car

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    aren't 4WD pumps like the s3 different to FWD drive pumps like the LCR???

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    Quote Originally Posted by Prawn View Post
    Stock lcr pump here, a3 one couldn't fuel 230bhp after 150k miles and ran lean.

    Lcr pump going strong currently, but if I'm honest I think I'm on borrowed time.
    You'll be looking at an inline soonish then?!
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  9. #8
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    Quote Originally Posted by superkarl View Post
    aren't 4WD pumps like the s3 different to FWD drive pumps like the LCR???
    LCR pump is rated the same as the S3 (4bar)... just come is a different fitment as the LCR doesn't have the same fuel tank setup

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  10. #9
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    Quote Originally Posted by Westy View Post
    You'll be looking at an inline soonish then?!
    I was given a walbro 255 in tank pump in a deal with Ben.

    I've heard about issues with pickup at low fuel levels when fitted wrongly, but I've also heard of people getting really decent results when fitted correctly, so as it was free, that'll be my first port of call!
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    Prawns TFSI Turbo'd 1.8T Track Car

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    Quote Originally Posted by Prawn View Post
    I was given a walbro 255 in tank pump in a deal with Ben.

    I've heard about issues with pickup at low fuel levels when fitted wrongly, but I've also heard of people getting really decent results when fitted correctly, so as it was free, that'll be my first port of call!
    Prawn were can i get a lcr pump ? What do i have to do to make it fit ?

  12. #11
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    LCR pump from TPS or a SEAT dealer...

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

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    will a audi a4 pump match across. the sport one is 4bar might be cheaper then a s3 price tagged pump

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    any one know have a fitting guide for a 004 motorsport in line pump please , i think ill just fit one of them

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    Quote Originally Posted by jonno123 View Post
    any one know have a fitting guide for a 004 motorsport in line pump please , i think ill just fit one of them
    if a stock intank wont fuel enough for 230hp, how the hell is it going to feed an inline fueling for 350?
    why ask for advice then ignore it.

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    Healthy std intank pump will act as a lift pump and should be fine to feed an inline pump... the issue with a std pump is it can't maintain the required fuel pressure at the required flow level for the hp expectations ... at the lower pressures required to feed an inline pump then it should keep up...

    Fitting an inline pump is not a fix for a failing intank though... if the intank is known to be failing or just old then replace this regardless...

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

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    ...ideally you would use a swirl pot... and if buying a new intank its worth upgrading to a more capable one... Bill has a suppliers of pumps he has been using for Ibizas as pretty much all he has seen recently have tired pumps... they seem particularly rubbish..

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  18. #17
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    I replaced mine because for good measure before it gets mapped, just to eliminate any problems. That's what you should be doing mate. Eliminate as many problems as you can before its mapped, otherwise they'll come back and bite you in the ass cheek!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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    You lot have now got me thinking about an upgrade. I fitted a new in tank S3 pump last year but I have no idea how long it'll last on my current setup.
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  20. #19
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    Would have thought would be alright for a good fair few years mate as still running 3 bar iirc?

    Theres kits and old stage 2 maps out there like the mtm that run 4 bar and bigger injectors and these seem to last quite a few years although i suspect most of them out there are struggling to provide the correct amount of fuel now with there owners not having a clue car could be running very lean
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    Quote Originally Posted by superkarl View Post
    if a stock intank wont fuel enough for 230hp, how the hell is it going to feed an inline fueling for 350?
    why ask for advice then ignore it.
    sorry i dint make myself clear , i will fit a uprated in tank pump , and fit a 044 motorsport pump wich will flow for about 700 bhp , im only looking to run 280 -300 max , you cant use that much fwd anyway
    superkarl likes this.

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    I have just spoken to fse glenco

    they can supply a in tank pump that will flow 318 LPH thet should be good for 500 bhp , but i will add a in-line pump on a switch try it and if no good run both , (im only doing this too see if it can be done with just a in tank , as this would save people £££££ )

 

 

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