fse fuel regulator
Discussion
daz the plumber said:
i have a fse fuel reg on my 4 l chimaera
what is the standard fuel regulator presure set at(standard factory set unit)
my car as had a few mods and currently set at 64 psi. i feel that it is running rich and useing more fuel.what is the procedure to lower the presure ? thanks
If the ECU has been mapped to suit that regulator then that's where you should leave it. If it was mapped for a standard regulator then fitting a rising rate one will eff the fueling completely. 64 PSI is a huge pressure and I can't imagine why you would have it set so high. Is it still using the original disc type injectors? If so, they're probably struggling to work against all that pressure.what is the standard fuel regulator presure set at(standard factory set unit)
my car as had a few mods and currently set at 64 psi. i feel that it is running rich and useing more fuel.what is the procedure to lower the presure ? thanks
so ,if i reduce it to 37 would the fse regulator work like the standard pre set regulator,i ask this because i dont have the standard one .i have some mods ]
carbon trumpets
act induction kit
k&n air filter
i would like to use it like a standard regulator but will the chip be able to cope with the mods ?
i may go for a new chip so will i go for a standard off the shelf one or could i get one pritty close by giving the spec .
you can see im trying to keep the cost down as i have spent enough money .cheers
carbon trumpets
act induction kit
k&n air filter
i would like to use it like a standard regulator but will the chip be able to cope with the mods ?
i may go for a new chip so will i go for a standard off the shelf one or could i get one pritty close by giving the spec .
you can see im trying to keep the cost down as i have spent enough money .cheers
those mods arent that radical so you should be perfectly ok with probably a slightly raised fuel pressure, what you have now is way too high. you'd just need a few power runs on a dyno to trim the mixture somewhere near right on the fuel pressure and let the ecu take care of the rest.
The main question in my mind is whether the fuel map has been set for a standard 1:1 regulator or the higher rate FSE one. If you have a map set for the standard regulator and set the right pressure at idle as recommended, it'll end up with too much pressure and hence too much fuel when you open the throttle.
no i was told to set it at 62 psi because some one else well known in these fields advised me to.ive just contacted rpi and they told me to set it at between 36 to 40 with the engine off ignition on .i thought the best way was to change it with the engine on idling around 1000 with the vacume pipe removed then bloked off .
daz - if you changed it after the map was set and now it's running rich - then thats the reason why.
That is way above would would be considered normal unless you were driving a 300 bhp, 8000 rpm 4.0 tuned rocket..
and I doubt there are not many of those on the road - only on the race track !
That is way above would would be considered normal unless you were driving a 300 bhp, 8000 rpm 4.0 tuned rocket..
and I doubt there are not many of those on the road - only on the race track !
64psi should make the ECU go into fault mode as it cant control the mixture. I did "bench test" my ECU up to 50 psi on tickover and the ECU compensated for it, but as Ive already said it started to run over rich at 40 PSI under load. These are different points on the fuel map, so the results are not comparable.
Mark
Mark
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