scumbag 0 Posted January 8, 2007 Are these any good? What kind of benefits do you get from them and are the hard to fit? Or are the best steered clear of. Your opinions / experiences please!!! Share this post Link to post Share on other sites
welshpug 1,646 Posted January 8, 2007 no need on most engines, even tuned on standard injection dont need them. Share this post Link to post Share on other sites
M3Evo 0 Posted January 8, 2007 No, none and probably not. I believe that all they do is turn up the fuel pressure everywhere, despite what the advertising says. Share this post Link to post Share on other sites
Batfink 201 Posted January 8, 2007 my experience is that they give you bore wash. £70 to f*** up your engine - no thanks Share this post Link to post Share on other sites
scumbag 0 Posted January 8, 2007 cheers guys exactly the response I expected! Share this post Link to post Share on other sites
veloce200 3 Posted January 8, 2007 cheers guys exactly the response I expected! they are marketed as power boost valves. the main reason people use them on "proper" cars is that you can set your fuel pressure. eg if you tune your engine and need more than the injectors can give at the base pressure. you can buy them with a gauge built in as well. The rising rate thing is only really of any use if you have a specific issue with a car. some modern cars run a bit lean on acceleration mapping so they make those cars "feel" better. Agree though with other comments as a bolt on performance mod probably limited. Share this post Link to post Share on other sites
Baz 421 Posted January 9, 2007 Got a couple lying around as in my experience they're crap, as said just add pressure and generally not needed. Someone told me that after they're adjusted too much they can get even worse as the diaphram inside weakens or something like that? Share this post Link to post Share on other sites
TB_205GTI 1 Posted January 9, 2007 About three years ago a user on this forum posted a little video of a FSE valve on his 205. With the std. pressure regulator the pressure was fine and stable - with the FSE the pressure was all over the place. Conclusion nothing worth. If you need to up the pressure a bit (due to injectors running on the edge) buy a proper bosch valve or a _good_ adjustable one. Share this post Link to post Share on other sites
smckeown 1 Posted January 9, 2007 my experience is that they give you bore wash. £70 to f*** up your engine - no thanks If it's set up on a good RR (i.e. one who uses an AFR) then there's no reason why you should get too rich a mixture. Then aain, my 8v race engine had one, the RR operator was happy with it, but I suffered a borewash problem soon after; exact culprit not known (would have been the build, could have been the 2nd mapping session, could have been the FSE..who knows) I had a good experience on my stock mi16, that was setup on the RR too Share this post Link to post Share on other sites
Batfink 201 Posted January 9, 2007 well in my case we wound the PBV to its minimum setting and it still overfueled the car. This was with the correct model for the car. All tested by a well trusted mechanic who spent his working years in a peugeot garage. Share this post Link to post Share on other sites
Baz 421 Posted January 9, 2007 well in my case we wound the PBV to its minimum setting and it still overfueled the car. This was with the correct model for the car. All tested by a well trusted mechanic who spent his working years in a peugeot garage. Exactly as mine, had soo much trouble with it, couldn't pass an MOT Emissions test until it was removed. Share this post Link to post Share on other sites
richard 0 Posted January 9, 2007 I have one on the 1.9 At a recent rolling road event the operator seemed pleased that i had one so he could adjust the fuelling as they are a 'bugger' to sort out otherwise (i quote) I know the engines not leaning out at the top end which is in my book fine. Horses for courses and all that...mine came already fitted on the car. I've got a normal one ready to fit should it play up or go faulty, i'll probably put it back to standard. But in my own experience its not caused me any problems. Share this post Link to post Share on other sites
hengti 2 Posted January 9, 2007 I have one on the 1.9 At a recent rolling road event the operator seemed pleased that i had one so he could adjust the fuelling as they are a 'bugger' to sort out otherwise (i quote) I know the engines not leaning out at the top end which is in my book fine. Horses for courses and all that...mine came already fitted on the car. I've got a normal one ready to fit should it play up or go faulty, i'll probably put it back to standard. But in my own experience its not caused me any problems. same for me - the tuner i used to use insisted on setting the fuelling up with one. i think they're fine so long as they're properly set up; not noticed any problems from mine anyway. Share this post Link to post Share on other sites
boldy205 74 Posted January 9, 2007 i have one on a 1.9. not really worth the money new. i got mine second hand as i was intrested. as said, no point on a std. engine. Matt. Share this post Link to post Share on other sites
snillet 1 Posted July 25, 2007 The diaphragm is fairly fragile in the FSE valves, if you mock around to much with the adjuster then they become very unstable until you put a new diaphragm in it. Friends of mine has used them on turbo volvo engines with good results when changing injectors and lots of other stuff. So the quality on them i think is reasonable considering they´re quite cheap compared to other brands. But as said above, not much use on a standard machine, as any adjustable regulator. Share this post Link to post Share on other sites
DamirGTI 341 Posted July 25, 2007 Hi ! I have one of these FSE valve bought from our member "Hengti" and was really helpful for tuning mixture on my modified engine - I've had problems with too lean mixture because i have ported head angle seats... high CR etc. .... And also i passed at the MOT few days ago with no problems what so ever , the CO at idle was very good (I've set this by myself ! with feel - my ears nose and eyes ) So no probs with this valves for me even when I'm checking mixture with a lambda sensor everything works fine .. but of course me thinks that this boost valve is of no use on standard engine Cheers Damir Share this post Link to post Share on other sites
