What Fuel Pressure Regulator Do I Need

I am doing a PPRV delete, and it was suggested to me by a friend to get an FPR to protect my FRPS.
My question is, does anyone know what Aeromotive FPR I need to get that will work with the stock fuel rails/fuel line? I know the stock hard line and fuel lines are 5/16".
I see a few different models on their website, but not sure which one to get. I have tried reaching out to aeromotive's tech department, but have not gotten word back from them.

What car do you have? I prefer Fore Innovations FPR over Aeromotive so you may want to check them out.

GodStang said:

What car do you have? I prefer Fore Innovations FPR over Aeromotive so you may want to check them out.

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I’ve got a 2003 Cobra. I’ll look into them. Just want a good FPR.

Unless you're going to a return style fuel system you don't need a fuel pressure regulator. Deleting the PPRV won't hurt the FRPS. Just make sure to give the pumps an extra few seconds to prime before cranking the engine over.

slo984now said:

Unless you're going to a return style fuel system you don't need a fuel pressure regulator. Deleting the PPRV won't hurt the FRPS. Just make sure to give the pumps an extra few seconds to prime before cranking the engine over.

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But by not having the PPRV, is there not a chance during WOT that there could be a surge and blow out the FRPS?

Yes there is. MANY of engines have died from the frps failing and dumping fuel in the engine that is why the pprv is there.

I still do not understand why u want to remove it?

decipha said:

Yes there is. MANY of engines have died from the frps failing and dumping fuel in the engine that is why the pprv is there.

I still do not understand why u want to remove it?

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It was recommended by my tuner, as well as a few other Cobra owners I know. By eliminating the PPRV, there should be less "surging" between gear shifts at high rpm shifts.
Honestly, if there is going to be this much of an issue, I might just leave it in.

PPRV delete gets rid of a few hiccups and gives you more flow.

Maybe you can find one of the old KB burst discs to throw in there? Id rather go that route over adding a regulator into the mix

carguy96 said:

But by not having the PPRV, is there not a chance during WOT that there could be a surge and blow out the FRPS?

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carguy96 said:

It was recommended by my tuner, as well as a few other Cobra owners I know. By eliminating the PPRV, there should be less "surging" between gear shifts at high rpm shifts.
Honestly, if there is going to be this much of an issue, I might just leave it in.

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In the past the point of removing the PPRV was to get rid of the hesitation when shifting at WOT. But if your tuner knows how to tune he can get rid of the hesitation. There's a few values that need to be changed and it'll get rid of the hesitation.

slo984now said:

In the past the point of removing the PPRV was to get rid of the hesitation when shifting at WOT. But if your tuner knows how to tune he can get rid of the hesitation. There's a few values that need to be changed and it'll get rid of the hesitation.

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pretty sure most of the broken FRPS were also tune issues, if tuned correctly shouldnt burst the frps. I would have left mine alone but I was so right on the ragged edge fuel wise I didnt have a choice but to do that with a power wire upgrade

@slo984now
can u elaborate on the changes?

slo984now said:

In the past the point of removing the PPRV was to get rid of the hesitation when shifting at WOT. But if your tuner knows how to tune he can get rid of the hesitation. There's a few values that need to be changed and it'll get rid of the hesitation.

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I might have him attempt to tune it out. I am not trying to blow of the FRPS.

DSG2003Mach1 said:

pretty sure most of the broken FRPS were also tune issues, if tuned correctly shouldnt burst the frps. I would have left mine alone but I was so right on the ragged edge fuel wise I didnt have a choice but to do that with a power wire upgrade

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I am not sure how "on the edge" I am. I've got a 2.3 whipple, 60s, and a BAP. The pulley combo I have should make about 16-17psi of boost.
So regardless of if I do the PPRV delete, there is a still a chnace I could blow the FRPS even without it?

DSG2003Mach1 said:

pretty sure most of the broken FRPS were also tune issues, if tuned correctly shouldnt burst the frps. I would have left mine alone but I was so right on the ragged edge fuel wise I didnt have a choice but to do that with a power wire upgrade

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More than likely. But then the first time mine blew was randomly while I was trying to set the TPS and throttle stop.

decipha said:

@slo984now
can u elaborate on the changes?

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I would have to look at my old tune. The essence of the report I read was to "deaden" the response. I remember I clipped the max pressure and changed something with the integrator. It's been a while. But I know it worked as once it was done I never had another hesitation issue. And mine was bad enough that people thought I didn't know how to shift. I also never blew another FRPS.

@decipha
Found it:
Pressure Sensor Transfer Function- Set it to 40+boost level. In my case I was running 12psi. So 40+12=52. I set mine to 55 just to have a little wiggle room. My understanding is this keeps the pressure from spiking and blowing the FRPS.

Fuel Pump Gain Proportional Term- Set to 0.

Fuel Pump Gain Integral Term- Set to .107

Now I'll be honest that I lost the post that gave the reasons for this. I do remember it was one of the more well known tuners that posted it. Like I said earlier, I had a bad WOT hesitation and this took care of it.