Don't reply to every post like a nobber, when people are giving suggestions and you might get some better responses. Just a suggestion.
Unfortunately, as people have already stated, it's easier (and cheaper) to get it mapped properly. However to perhaps help your question be answered here goes, changing fuel pump can mean re setting fuel pressure regulators, ensuring that the fuel system is spec'd to cope with it (rail pressure sensor, PRV, return to tank) otherwise it will over supply the engine and return to tank to often, picking up heat and can affect octane rating on fuel if you heat it too much. Also if it is cam driven and not electric then it will wear the lobes out quicker, and will also mean you need to accept that you will need change oil more often to provide more protection with the possible chance of replacing followers and maybe even the camshaft.
If you are going to do it, then I hope you have deep pockets, and the one I would be looking at is the APR kit. Adding torque invariably means adding horse power though, so out of interest if you can't use it why are you looking at this expensive option? It would be better to concentrate on putting the torque down properly through a LSD or similar before going through with this option.....
Cheers for the informative post, this is the sort of information that I am looking for. Maybe I have been mis-led or misunderstood what I can expect from a HPFP and tweaked map. I was under the impression that with the other mods I have in place, that a HPFP was kind of a necessity to get the most out of mid range torque, whilst keeping bhp at the same level. Because probably the standard 'Hitachi' VW FP wasn't up to the job. I understand I could buy an APR pump for between £500-£700, although admittedly hadn't anticipated spending much more than £350-450 to be honest.
As the car stands at the minute with 270lbft, traction isn't an issue (in the dry) and in fact as previously stated, once I'm in the mid range, the 'pull' could be greater. It is the only real area where I feel like my car's power band lacks a little. So there's no need for a LSD and as I understand it a decent set up would cost in excess of £1200. I have already had a custom map and know that I am eeking the most out of a ko3 turbo as it is.
Are you suggesting that a different map/mapper could get me the mid range torque that I desire, without the need for extra modifications and at a cheaper cost than a HPFP?
When I spoke to a couple of forum members they both suggested that a HPFP would be the perfect addition to give me exactly what I'm looking for.
I'm definitely
not going to get a uprated turbo, but maybe if what you're suggesting is true, then WMI is a more viable option?
I'm sorry you felt as though I replied to every poster like a 'nobber'. But to be honest If you read my original post I thought it was pretty clear what I was after, ie; HPFP and I don't feel like I could have put my point across any in any other way.
So quotes like...
why not fit a better turbo and just have it mapped to deliver the power how you want it
and
Sounds like you have already made your mind up.
and
if you have allready decided there is littel point offering advice or opinion
and
i agree with what danny has said
better turbo, mapped correct and then add a diff
And whilst I appreciate everyone has their own opinion and probably know far more than I do. The comments weren't really much help, as I was after advice on HPFP's, because that's what I had been informed was the correct way to go and because a turbo, map, WMI and/or LSD would mean spending thousands, something which I said in my original post was not an option.
