OK... before I get flamed, I did try the "search" feature, but I couldn't get an answer to what I'm looking for. Soo... if anyone has any valuable input, I would greatly appreciate it.

Here's the question: Anyone have anyway to raise the fuel pressure without having to build a return fuel system?

Also, incase someone has the questions if this is for a turbo or blower, its for neither... its for the bottle which does not provide power on demand as the other mentioned FI systems.

Unfortunately the Nismo cams have leaned out the car and even adding bigger fuel jets wont help. The fuel doesn't get to the car in time until after 5,5K rPM's.... which is a bit late.

Again, I did try search, but didn't find an answer.

Thanks,
Tony

 

Maybe just get a Walbro pump?

 

Does a wetshot not get you enough fuel?

You could get an inline fuel pump and a control unit like the SS box that comes with the Vortech box or the simplistic Aeromotive DFMU that comes with the Procharger.. This will make your stock injectors work overtime to pump more fuel..

--mike

 

Yes with an Aeromotive FMU and Aux inline pump.
Same method employed in the basic ATI SC kit.
But it's a hack IMO.
Someone out there who's upgraded thei ATI fuel system might be willing to sell the old parts to you.

The most common method is to upgrade the in tnak pump and convert the assembly into a "local" return based system by adding either a adjustable FPR for NA or a RR of 1:1 for FI. This is a system simiar to what APS provides with it's TT and ST kits. No return lines back from the Fuel rail , so it's not a "full return " system more like a "partial return system".

 

If you want to wait a month, I'll sell you my APS fuel return components, minus the pump

 

Yeh and if he can wait a few more months than that , he can buy mine too.

 

Oh yeah I jsut remembered , I think KenneBell sells an on demand pump "booster" called , Boost-a-pump. Name is corny but I've heard it does work as advertised. You can simply gate it on in parallel with your bottle solenoid.

http://www.kennebell.net/accessories...boostapump.htm

 

That is basically what the Vortech setup does. It varies the voltage to the fuel pump to up the pressure. Look it up on any mustang forum. They abbreviate it, calling it a "BAP."

 

In this case it sounds like he needs "step function when on Bottle" vs. a "ramped function when on boost". But the vortech setup coudl prolley be massaged to do what he needs as well.

 

is it a wet or dry kit? do you have a fuel pressure gauge to see how much it drops when you hit the nitrous? using the areomotive fmu could really mess some stuff up as it only reacts off of boost. if you hard wire the pump and link it to your nitrous trigger, your fuel pressure would hit astronomical pressures. not to mention needing the check valve to make sure it doesn't reverse flow. the jetting for your kit i'm sure is designed to work of off 50psi fuel pres.
prolly trying just a simple intank walbro would be the best place to start, then keep tabs on it with a fuel pressure gauge.
the prob is the fact the stock fuel system is trying to control pressure in like 12 feet worth of fuel line and a sudden burst of fuel requirement from the motor drops pressure, and it takes a second for the stock fuel system to build that pressure back up in that much fuel line. adding the bigger pump might help this recovery time. good luck.

 

WRT
"our fuel pressure would hit astronomical pressures"
This is not the case with a switched KenneBell type solution.

 

ya, i'm not familiar with how that system is adjusted. i just feel it would be a real trick to make the aeromotive set up work.

 

You really just wire it up to the Fuel pump power lead and gate it on with the
NOS control solenoid. % of fuel pump "overdrive" is simply preset by a dial on the unit. So normally fuel pump runs as OEM, during a shot, the fuel pump is overdriven to the preset level. Not that I love the method , but it would do the job. IMO

 

how much is something like that?

 

~$219

 

Thank you all for your input. Sorry for the late reply though.

Now to answer some of the questions asked, yes, its a wet kit. But as stated above, when the cams were added, the car leaned out. When the N2O is spraying, it leans out even more. I'm constantly 13.9-14 on the A/F map, which at 125 shot, not too safe.

What I was looking for is the BAP... I just didn't know if anyone had tried that on their cars. Unfortunately on the N2O section no one has this problem.

I guess you guys got the nail on its head... I wanted something that can add more voltage, per say. Something that can work the pump a bit more, or something that's aux, but actually work.

As most reflashes can only lean cars, I didn't know if there was anything that can "fatten" them up.

Also, someone asked about just adding a Walboro, well, the problem with just doing that is that the car will run like... garbage when I'm not on the bottle.... which is 99.99% of the time.

Again, thank you all for taking the time. If you guys have any other suggestions or know of anyone who has these kits available, let me know.

-Tony