I am wanting to buy a new fuel pump for my 93 integra with a b18 gsr...i have decided to go with the walbro 255, but i what i need to no is do i need a high pressure fuel pump or a low pressure fuel pump....or does it really matter??? I do plan on boosting the car eventually and upgrading the injectors of course...i have takin a look around here and havent found nothing on it...any info would be great thanks in advance

 

what base fuel pressure do you want to run? im thinking the base walbro 255 will be fine

 

they dont have a base model...i believe?...i went to tunertoys and its either low or high pressure???

 

there is normal and there is the HP, the HP is for people who run high fuel pressures, one example people with a boost dependent FMU... honestly though i always just get the HP, for $10 more why not...

 

higher fuel pressure = hotter fuel

 

lol. so you would rather starve your motor?

gotta get fuel to the motor somehow. would you have it slow and make not as much power than you could if you had the pressure for it? especially when it comes to ethanol. i wish i would of gotten the hp now. ill be replacing my low pressure one with an hp one.

oh and heat doesnt affect it as much as you think.

 

What does that have to do with anything in this thread?

A high pressure fuel pump is not going to change your fuel pressure, thats what the FPR does

 

What are you talking baout starve the motor? Its a stock gsr, there is no need for a 255 at all.

 

What are you taking about? Its going on a turbo motor, every post you make makes me question your expertise more and more...

 

I think you should read over the OP. It says that he wants to boost the car down the road. Since he does not know what he is going to do as of now it would be a poor decision to put a hp255 in because his works and he may need an external a few months down the road depending on the build.

 

Also it does not say I NEED a fuel pump, it says that he is wanting. I think its time for some new glasses.

 

And in response to this the fpr regulates the pressure that is in the line coming from the fuel pump and the line feeding the fuel rail. When you prime the fuel system (turn the key) the pump is going to push out max pressure then the fpr regulates how much pressure get through to the fuel rail.

 

Why would he need an external? i have seen a single walbro support 550whp, do not need to reread anything, are you suggesting he do the same job twice?

where did i say he said he "needs" a fuel pump?

i see what your getting at now, it appeared as if you where saying raising fuel pressure will increase the temperature of the fuel, which is not correct.

 

dude your f***ing retarded. just quit posting.

he said he wanted to turbo it. also it doesnt matter having an upgraded fuel pump on a stock motor, it wont hurt anything. and i doubt hes gonna wanna get an external pump by the sounds of him asking if he should get a 255 lp or hp, especially specifying a walbro 255. doesnt sound like its gonna be a race car or anything.

and why are you telling us how a fpr works. nothign to do with what the guy is asking.



either way boosted91REX-SI, either 255 supports a lot of power. high pressure a little more. im sure a low pressure will work just fine, as well as the high pressure. its a matter of personal choice.

 

your retarded if you think someone needs a 255 for a stock motor

 

Nowhere in this post did he say that.