Portfueler

[shaneyeend]

Do u guys think the portfuler will fit with the OBX or Venom intake manifold?

 

[green95hrcgs]

I dont see why not, being that the Portfueler fits in between the head and the stock lower intake manifold. The only problem I could see, is possibly the upper intake manifold hitting the firewall if spaced too far back becuase of the Portfueler.

BTW, there really is NO need to change the intake manifold on out cars, unless you want something that is more bling bling. In that case, I would just have the stock upper intake mani polished.

Good luck either way.

 

[shaneyeend]

i already have a new mani, and yes there is already a little bit of a space inssue becuase where they have the vacums and sensors mount they get close to the fire wall, i wanted to know it it would fit or not, so i could know if i needed to relocate the parts on the manifold to a diffrent spot on it.

 

[green95hrcgs]

Dunno for SURE if it will fit, but pretty much figure the thickness of the flange where the manifold meets the head, to be doubled. Then figure out how much room you have left over.

 

[shaneyeend]

yep i'm gona have space issues, but had a question about what came with the fueler, i read on here once that there 1:1 Aeromotive FPR sux. anyone else think thats true? and if yeah what one should i get? i want quality!!

 

[green95hrcgs]

Aeromotive FPR's are GREAT. I have never heard of anyone disliking one.

Go to HRC's site to see what exactly comes with the Portfueler setup. I do believe that you can just buy individual parts that you might need/want for your particular setup.

 

[shaneyeend]

I had a question about the system and or injector function. If you wouldn't mind helping. So say the portfueler is equiped with 800cc injectors. will the system always run them at 800? or does it tell them to run the right cc according to the PSI or RPM's? I'm wondering this becasue i was thinking that maybe i could stay with my stock injectors that would keep my idle and engine run well at no psi, and when psi started to rasie the 800cc ones would see it and begin firing equal to the boost pressure, or will it go crazy and make the engine run rich?

 

[DSM-ZERO]

How much hp do you want 190cc prime, and 800cc second that is 990cc of fuel
if you want 990cc of fuel that would be for 600+hp
if you use the 800cc once boost comes on it will run RICH very RICH
If you just ran 800cc any time you have a big inj. like that you are going to run into idle problems unless you have a standalone to control inj. pluse and with
I have an Aeromotive 1:1 and I have no problems it even has a seprate port for fuel for nitrous the only reason why people think the AFPR sux is because
ie.
All of this would be with stock 190cc inj's
FMU 12:1 @ 8psi is 96psi of fuel pressure, the fmu lets you keep your stock idle fule pressure
AFPR 1:1 @ 8psi will need an idle pressure of 88psi to get you 96psi of fuel pressure
Now once you turn up the boost to 10 psi
fmu 12:1 @ 10 psi is 120psi of fuel pressure that is too much fuel, So you will need to re-calebrate the fmu to a 9:1 to acheave 90psi F/p @ 10psi BUT @ 9:1 if you turn down the boost to 8psi that would be 72psi of fuel Not enough fuel.

SO are you just going to re-calebrate your FMU every time NO
so that is why the AFPR is better because it is very easy to tune there is a bolt on the top you turn to rise or lower idle fuel pressure.
I have always used the AFPR and always had a high idle fuel pressure and have had no problem.

 

[shaneyeend]

The high Idle fuel pressure never messed up the idle? or made the engine run wired when building up boost? And what if i'm gona run like 25psi at the track, and say 12-17 psi on the streets, what would i have to do so that i could do that combo?just change the AFPR? and yeah i'm still a little confused as to how the injector works. So i think from your post that the 800cc injectors will run at full ability as soon as its told to turn on. But then i wonder if the AFPR will make that injectors run the amount you want, is thiS right or wrong? sorry but i know almost nothing about fuel and would like to learn all i can.

 

[DSM-ZERO]

1. No i never had a problem with the high fuel pressure at idle or building up boost
2. if you are going to run high boost at the track and low boost on the street all you have to do to the AFPR is lower or rise your static fuel pressure
ie.
Lets say you want 90psi of fuel for 25psi of boost with a 1:1 ratio you would need a static fuel pressure of 65psi.
lets say you want 90psi of fuel for 12psi of boost for the STREET with a 1:1 ratio you would need a static fuel pressure of 78psi t oequal 90psi of fuel
All you have to do with the AFPR is adjust the bolt at the top of the regulator to rise or lower the static fuel pressure
3. In order to control the 800cc injectors from turning on all the way you would need some sort of controler that can control fuel
ie, piggyback or standalone to control inj duty cycle
You could also turn down the static fuel pressure to ruen less fuel pressure BUT YOU can only turn it down sooo much until you car won't idle right because the static fuel pressure will not be high enough
ie.
78psi static @ 12psi of boost is 90psi of fuel with 800cc inj is alot of fuel
48psi static @ 12psi of boost si 60psi of fuel with 800cc inj is less fuel than 90
The best way to do this is to have a control to control inj duty cycle

 

[shaneyeend]

such as the hahn portfueler controler? I am planing on buy the who portfueler kit, so if that controler will owrk then, all i would have to do to change from 12 to 25 would be to turn the nut on the AFPR? oh and if u have the whole hahn setup will it make my car not run rich because the control box can "control it"? Oh and with the AFPR how do u know what your setting it to? does it have a guage on it?

 

[DSM-ZERO]

As far as all the port fueller Q's call Hahn. I don't know enough about the portfuller to answer.
630)553-6830
The AFPR dose not come with a guage BUT there is a port on it so you can hook a guage up to it

 

[baxsom]

i just recently talked to hahn about the portfueler and supposedly only the stock 190 injectors work all of the time such as at idle
then the portfueler controller runs the sencondary injectors according to what it senses the engine needs

this might have already been explained but i was a little confused about the previous replies and wanted to make sure i understood what i thought i did

 

[shaneyeend]

sweet thanks that was a perfect answer

 

[baxsom]

talked again to brad at hahn today
for a more exact answer on how the portfueler knows what to do
and according to him it senses tach and vacuum and adds fuel accordingly through the additional injectors

 

[siueclipse]

Do u guys think the portfuler will fit with the OBX or Venom intake manifold?

the OBX or Venom intakes aren't worth it. Save your money for other mods. They don't flow any better than stock.

 

[SnoopySLR]

Cause thats exactly what this thread is about

DSM-ZERO, looks like you know your stuff about fuel