fuel/ power

[tkoforpresident]

whats the correlation between fuel pressure, fuel capacity, as it relates to power?

say i got (as i am planning on doing) an adjustable fuel pressure regulator and bumped up fuel pressure and at the same time got a lovely aftermarket walbro 255 fuel pump to go with.

would this correlate into any gained power? just curious....

this is all enroute to a nitrous install but on a full bolt on car would it actually "help" gain any power?

thanks

max

[Turbo V6 Camaro]

Re: fuel/ power

you won't gain any power, you will have the means to make more power with those upgrades tho :naughty:

you don't really need the ADJ FPR

just put a pump in and call it a day

adding fuel for power only works in diesel motors.

[tkoforpresident]

Re: fuel/ power

but it's got to help to bump up fuel pressure right? thirdgen.org had a dyno prove that bumping up stock fuel pressure actually increased hp by like 20.

is it completely useless for me to do?

[Turbo V6 Camaro]

Re: fuel/ power

but it's got to help to bump up fuel pressure right? thirdgen.org had a dyno prove that bumping up stock fuel pressure actually increased hp by like 20.

is it completely useless for me to do?

ehh if taking the fuel PSI up made that much more power then the car was running lean in the first place.......... so it needed the fuel

And no a pump alone will not bump the fuel pressure, the stock regulator will keep it about the same.

Uless you have a fuel pressure guage and a wideband O2 sensor to prove that you need more fuel i wouldn't mess with anything, its very easy to pop a motor

if you putting on a wet shot (over 50-75HP) you need a fuel pump, or a dry shot over 75.

[vanbibber]

Re: fuel/ power

you won't gain any power, you will have the means to make more power with those upgrades tho :naughty:

you don't really need the ADJ FPR

just put a pump in and call it a day

adding fuel for power only works in diesel motors.

x2

(goddamn minimum character limit)

[tkoforpresident]

Re: fuel/ power

well, how bout instead of the afpr, i get just a fuel pressure gauge and call it a day?

then i can see what it is at key on and with the engine running.

if fuel pressure was lower than what it should be than would that have something to do with the fuel pump going?

btw, i'm hoping to eventually do a 50 and then 75 hp shot of Nitrous, i know "technically" it is not needed for those amounts but i want to be sure i have enough fuel and fuel pressure to go along with it, plus my fuel pump is old and i want to replace it anyhow and of course gm wants twice the cost for a pump thats twice as crappy as an aftermarket pump!

[Turbo V6 Camaro]

Re: fuel/ power

well, how bout instead of the afpr, i get just a fuel pressure gauge and call it a day?

then i can see what it is at key on and with the engine running.

if fuel pressure was lower than what it should be than would that have something to do with the fuel pump going?

btw, i'm hoping to eventually do a 50 and then 75 hp shot of Nitrous, i know "technically" it is not needed for those amounts but i want to be sure i have enough fuel and fuel pressure to go along with it, plus my fuel pump is old and i want to replace it anyhow and of course gm wants twice the cost for a pump thats twice as crappy as an aftermarket pump!

for fuel pressure your looking for it dropping off in the upper RPMs, witch i have never seen a nitrous car do; that would take a shot larger then the car can handle. :eek::eek:

If you want piece of mind, putting a Walbro in Now is not going to hurt anything at all...... but You also need to tune to have the best piece of mind.... witch is where it gets expensive :rant: :tdown:

also make sure your fuel filter is new......

[tkoforpresident]

Re: fuel/ power

no way i'm tuning, the fuel filter is 1 year old.

i'll do the fuel pump and not the afpr, and since i'm not doin the afpr there's no point getting a fuel pressure gauge. if i do nitrous in the future it will come with a fpss anyhow so....

guess that wraps it up,

thanks

[cam98aro]

Re: fuel/ power

adding fuel for power only works in diesel motors.

thats not true at all

[zpwn06]

Re: fuel/ power

but it's got to help to bump up fuel pressure right? thirdgen.org had a dyno prove that bumping up stock fuel pressure actually increased hp by like 20.

is it completely useless for me to do?

carburated right? Shouldn't make too much difference on fuel injected. Could be wrong though. I know it would make a big deal if you were working with say, gaseous fuels like LPG or Methane, but since gasoline isn't going to compress that much....
wheres the article? I'm interested

[Turbo V6 Camaro]

Re: fuel/ power

thats not true at all

unless the car was lean you will not make more power without adding more air other wise it will just go really rich and run like pooo

[cam98aro]

Re: fuel/ power

unless the car was lean you will not make more power without adding more air other wise it will just go really rich and run like pooo

well if you are going to be giving your car more fuel, you will be giving your car more air, unless you have no idea what you are doing

its not about the fuel giving you power, its about the a/f mixture

although cars that are running too rich sound mean as hell :naughty:

[tkoforpresident]

Re: fuel/ power

unless the car was lean you will not make more power without adding more air other wise it will just go really rich and run like pooo

he said poo :banana:


anyhow, after all this modding, headers, catback, CAI, P&P throttlebody etc etc, with all that air being pumped in that is not from the stock setting, isn't it possible that right now my car is running a bit lean? or does it take something huge like a blower/cam/nitrous to really make a difference?

[Firebirdkid96]

Re: fuel/ power

he said poo :banana:


anyhow, after all this modding, headers, catback, CAI, P&P throttlebody etc etc, with all that air being pumped in that is not from the stock setting, isn't it possible that right now my car is running a bit lean? or does it take something huge like a blower/cam/nitrous to really make a difference?

Shouldn't be, the PCM should be adjusting for it. I have all that on my 3.8 and it's fine.

[tkoforpresident]

Re: fuel/ power

gotcha is that what the o2 sensor are there for?? =)