fuel regulator

[GT_AUTO]

i think u max out ur fuel pump press already bro.that normal for a stock
civic fuel pump.my 2 cent.

 

[pyccce]

wat is the idea for L502 wit td025 turbine?Tq

 

[markii]

anyone knows the ideal fuel pressure for 1jzgte?

 

[ToyotaRules]

anyone know the fuel press for 4a-ge 16v tvis??

 

[D-IV]

err.
what will happen when i install powerfull fuel pump such as walbro, but no fuel regulator.
is it any problems can happen?

and another things with is better
walbro fuel pump
bosch, or sard for sr20det (stock engine)

Depends on what flow of pump you're using. If you're using the 190LPH walbro, you might be lucky to run better than the 255LPH walbro without the regulator. Running too big of a fuel pump without a fuel regulator means you are creating high pressure at the fuel rails, increasing the amount of fuel injected per opening. So running unnecessarily rich at idle too.

IMO, big fuel pump should be accompanied with A-FPR and a fuel management system. Anyway, increasing fuel pressure does not create a bigger explosion in the combustion chamber leading to power. Fuel Injectors has their working pressure, exceeding the working pressure makes it less efficient in their spray patterns. Instead of giving a good one, its jetting out a straight one..thats where you need to find a higher cc injector to feed your engine needs. Wide spray patterns increasing burning efficiency leading to power and not better explosion (detonation).

 

[wasteg4te]

thank bro
very good info

 

[evolution9682]

wats the fuel pressure for evo 7 engine?thx

 

[wasteg4te]

D-IV..
thank bro.
it really happen to me.
im using 2 fuel pump. without fuel regulator
then my return hose got some dust. (stuck)
so increase the pressure for injector.
engine running rich.
no power
aisehhh my new denso ir spark plug kong already.

need to buy new.
lucky no major prob.
i'll take note this

 

[ondgennis]

it is all the mention pressure is with the vacum hose connecte or disconnect?

 

[D-IV]

What i commented is about using 255LPH with stock FPR. Regardless whether the line is connected or disconnected. The fuel pressure would still be high regardless.

 

[zakie]

fuel regulator??
hmm... its completed if combination goes like this...
fuel catch tank + external fuel pump + fuel regulator + upgraded fuel rail + upgraded fuel injection.... confirm smooth......

 

[wasteg4te]

ok maybe next year.
my car will complete with those items.
heheeh hopefully

 

[lablink]

it is suitable if my honda eg D15B (auto) use fuel regulator?

 

[Gobbi_21]

All sifu .... im currently using 4g91 carb .. all standard ..
im totally new to fuel regulator or fuel pressure regulator ..
im totally confused which to install for my engine ..
i need the best suggestion on the brand and what is the differences of FP & FRP....
going to fix soon to have a better fuel consumption and better driving ..
hope to get the best info
thanks sifu

Bump: All sifu .... im currently using 4g91 carb .. all standard ..
im totally new to fuel regulator or fuel pressure regulator ..
im totally confused which to install for my engine ..
i need the best suggestion on the brand and what is the differences of FP & FRP....
going to fix soon to have a better fuel consumption and better driving ..
hope to get the best info
thanks sifu

 

[Wira_lover]

All sifu .... im currently using 4g91 carb .. all standard ..
im totally new to fuel regulator or fuel pressure regulator ..
im totally confused which to install for my engine ..
i need the best suggestion on the brand and what is the differences of FP & FRP....
going to fix soon to have a better fuel consumption and better driving ..
hope to get the best info
thanks sifu

Bump: All sifu .... im currently using 4g91 carb .. all standard ..
im totally new to fuel regulator or fuel pressure regulator ..
im totally confused which to install for my engine ..
i need the best suggestion on the brand and what is the differences of FP & FRP....
going to fix soon to have a better fuel consumption and better driving ..
hope to get the best info
thanks sifu

Bro,

Previous Sifu have explained i think on the 2nd page that a carb engine will be pointless using a FPR...insuffiecient pressure.Another thing is also carb engines split the supply of petrol to 4 different runners then into the combustion chamber.Fuel injection cars inject/spray the supply directly into the combustion chamber.

From previous threads ive read,for carb cars,better to upgrade to Walbro fuel pump.Other than that im honestly not so sure i too am only a newbie and i dono much about carbs.

Another thing,if youre looking to save petrol....then you are in a difficult position.Cause only your right foot can save you fuel and also patience.Performance needs fuel.

 

[SkYwAlKeR]

Bro,

Previous Sifu have explained i think on the 2nd page that a carb engine will be pointless using a FPR...insuffiecient pressure.Another thing is also carb engines split the supply of petrol to 4 different runners then into the combustion chamber.Fuel injection cars inject/spray the supply directly into the combustion chamber.

From previous threads ive read,for carb cars,better to upgrade to Walbro fuel pump.Other than that im honestly not so sure i too am only a newbie and i dono much about carbs.

Another thing,if youre looking to save petrol....then you are in a difficult position.Cause only your right foot can save you fuel and also patience.Performance needs fuel.

for carburetors, it is not recommended to use high pressure fuel pump... hence, increasing ur fuel pressure for carburetor engines is a bad thing... u will flood ur carb as carburetor fuel delivery is through a float inside the carburetor body... (imagine having a toilet flush system inside ur carb)... valve will close when the float reachs a certain level... if u have high pressure fuel pump, it will force open the valve and floods the carburetor...

hence, carburetor engine best to use high flow fuel pumps... CARTER is one of recommended high flow fuel pumps, works best with weber/solex or other performance carburetors....

walbro fuel pump also high pressure... so, not recommended for carburetor engines...

 

[Wira_lover]

for carburetors, it is not recommended to use high pressure fuel pump... hence, increasing ur fuel pressure for carburetor engines is a bad thing... u will flood ur carb as carburetor fuel delivery is through a float inside the carburetor body... (imagine having a toilet flush system inside ur carb)... valve will close when the float reachs a certain level... if u have high pressure fuel pump, it will force open the valve and floods the carburetor...

hence, carburetor engine best to use high flow fuel pumps... CARTER is one of recommended high flow fuel pumps, works best with weber/solex or other performance carburetors....

walbro fuel pump also high pressure... so, not recommended for carburetor engines...

ohhh, yeah now i get it. Last time i had a Saga Knigt,4g15 carb.now i remember how it applies.Thanks sky.

 

[frank118]

yes...sky is on the dot...also changing fuel rail is important to handle the pressure.

 

[GT_AUTO]

yes...sky is on the dot...also changing fuel rail is important to handle the pressure.

there's no need to change the fuel rail to handle the pressure.stock is more then capable of
handle it.

 

[huakenny]

there's no need to change the fuel rail to handle the pressure.stock is more then capable of
handle it.

u will only need to upprade the rail when u upgraded ur injector to bigger size :)