All Things Mk5 > Performance Modifications
Hpfp upgrade
Jussa:
Interesting thread this.
I know the original version of the Autotech's were apparently prone to failure, but can anybody confirm any failures on the internals from the later revisions?
TBH I've only ever been concerned with a possible failure of the cam follower. If I fitted an APR pump would I still need to be worried about this as well?
E30Dom:
Yes, replace when fitting and check more regularly...
RedRobin:
--- Quote from: E30Dom on September 30, 2012, 01:21:14 pm ---
Yes, replace when fitting and check more regularly...
--- End quote ---
....I assume you are referring to the cam follower, Dom :happy2:
sub39h:
I would like to know how the conclusion was reached that the fuel pump was responsible for the fire. Then I'd like to know how a fuel pump can be responsible for a fire, considering it's a piston pushing fuel so you need a source of ignition which is likely to be outside the fuel pump. Then I would like to know, if the above conditions are satisfied, how an Autotech specifically increased the likelihood of causing said fire.
Hundreds, if not thousands of Autotech HPFPs have been fitted. If fires were a serious risk we would certainly know about them. I'd also like to point out that with regular inspection the symptoms of an Autotech fuel pump failure would be obvious before any serious damage has been done. All you'd need to do would be to buy a new pump for less than £200. There has been a case of a catastrophic engine failure in the US on a car with an APR pump with no warning.
Less than £500 for an APR is good value, but modifying anything outside of OEM specs carries with it a degree of risk. I think you're kidding yourself if you think otherwise. What this boils down to is whether you think APR halve the risk, i.e. can be justified in charging 2-3x the price of an Autotech. I don't think they do, and for that reason I'm out.
RedRobin:
--- Quote from: sub39h on September 30, 2012, 03:56:34 pm ---
I would like to know how the conclusion was reached that the fuel pump was responsible for the fire. Then I'd like to know how a fuel pump can be responsible for a fire, considering it's a piston pushing fuel so you need a source of ignition which is likely to be outside the fuel pump. Then I would like to know, if the above conditions are satisfied, how an Autotech specifically increased the likelihood of causing said fire.
--- End quote ---
....You would have to speak to people very much more expert than myself in investigating the causes of fires, whether automobile and/or otherwise. My understanding is that there was no doubt.
However, if as you report, there has also "been a case of a catastrophic engine failure in the US on a car with an APR pump with no warning", then as to be expected with even OEM fuel pumps, there is risk. OEM components are not devoid of any risk.
The wise man minimises the risks. That's why I suggested in my earlier post either fitting brand new Autotech internals in a brand new OEM pump or buying an APR pump (which I personally chose to do as it gives me far greater peace of mind). Simples :smiley:
The Autotech vs APR debate will never be resolved because we each naturally tend to favour the individual choice we made. :happy2:
I have asked this before, but hypothetically if the Autotech and APR pumps each cost exactly the same, which would you buy?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version