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 Post subject: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 5:01 am 
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Location: Curacao
So I got a cheap one from E-bay and it's apparently not holding pressure properly, cuz I'm running lean at upper rpm's. When I unplug the vacuum line, fuel pressure doesn't increase either. Even when revving the engine on neutral (no load), I can see the pressure dropping on the regulators gauge. Anyway the regulator has so many issues I won't even bother opening it to inspect.
So what FPR do you guys use normally, that won't cost me an eye? A link would be highly appreciated it, or a brand-name.

PS: this is a nearly stock NA car, so no need for fancy regulators for boost applications.

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 9:09 am 
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Im using a TurboSmart T-Reg Street Rising Rate Adjustable Fuel Pressure Regulator.

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 9:47 am 
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NickG13B wrote:
Im using a TurboSmart T-Reg Street Rising Rate Adjustable Fuel Pressure Regulator.

Thanks for the reply, but I don't need a rising rate one. I just want the regulator to work exactly as the oem one did...

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 9:50 am 
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On my old N/A setup I used a genuine sard (sourced from a reputable supplier) which worked a treat. Most people I have seen on here say its sard or its nothing :wink:

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 10:57 am 
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I had Malpassi on mine for 5 years with no issues

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 12:16 pm 
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If you want it to work like the OEM one put the old fuel rail back on.

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 12:29 pm 
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pictureshowman wrote:
If you want it to work like the OEM one put the old fuel rail back on.

Don't be a hater. I mean I want it to hold the pressure steady (as any good regulator would). I can't do any tuning if my air/fuel ratios are all over the place!

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 1:49 pm 
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Just out of curiosity, what engine work do you have that warrants the need for bumping up the fuel pressure?

I was running my car for many years with a groupA chip, 60mm throttle body on a bored out cultus manifold, 4-1's, exhaust etc on standard ignition setup (including 18yo spark plug leads) and dead stock fuel setup.
Also dropped a set of 210@.50" duration/ .340" lift camshafts in later on with no issues. If anything the car was running richer than it should have been.



If you want to tune your afr's, put an aftermarket ecu or at the very least a piggy
back ecu in. If i was smarter i would have put an aftermarket ecu in my car as the first mod. By trying to tune by adjusting fuel pressure, you'll just end up chasing your tail.

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Thu Sep 12, 2013 11:14 pm 
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My car is a MK3 with an air/fuel ratio knob that controls closed loop operations. So I could bump the pressure a bit to get the extra fuel I'll need at upper rpms on open loop, while compensating at the lower rpms with the knob. All I'll need is a wideband.
I'm not a fan of chips, because they were tuned for another car. For the price of the chip + installation I could get a secondhand Apexi SAFC from e-bay....

My car has a 60mm throttle body, I'll be building the headers shortly and a set of camshafts are next on the list. The engine internals will stay untouched... maybe some head-work, but nothing special.

Aftermarket ECU is too much for me now. I'm just having fun with my car, I'm not a professional racer. This car will never see boost either, as I'll be moving out of the country in about 2 years.

Anyway all I want now is to install a FPR that holds pressure steady, that's it. No need to complicate things :wink: .

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Fri Sep 13, 2013 11:04 am 
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Anyone want to add other brands to the list?

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Sun Sep 15, 2013 9:58 am 
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Try stick with a well known / reliable brand for the fuel pressure regulator such as;
SARD, TurboSmart, Malpassi, AEM from an authorised distributor so you know your getting a genuine item, not a fake.

Id be steering clear of no name brand regs on ebay.

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Sun Sep 15, 2013 12:48 pm 
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Any ideas of in what price-range those brands should be? The prices differ too much from eachther on the sites I've visited...

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Sun Sep 15, 2013 1:04 pm 
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As a guess, anywhere from $200-$500 aud

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Sun Sep 15, 2013 3:22 pm 
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NickG13B wrote:
As a guess, anywhere from $200-$500 aud

OK thanks :wink:. Strider offered one for $180 shipped, I guess that's reasonable...

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Sun Sep 15, 2013 3:39 pm 
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On the other hand, I can get an Apexi SAFC (second hand) for less, so that's probably the smarter choice to make. One of the fittings on the Honda rail started leaking today, so I'll put the stock one tomorrow morning until I've the side of the rail machined down in the lathe to get a smooth and straight surface...

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 Post subject: Re: What adjustable FPR do you use?
PostPosted: Mon Sep 16, 2013 8:54 pm 
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i'm with pauly , if you have a pretty stock engine then a standard OEM fpr would work better than your obviously failing cheap ebay item . ive tested fuel pressure on a shitload of swifts and to be honest i cant remember the last time i sold a fpr , actually i sold one for a vitara about a year ago.

With the $200 you will save on buying an aftermarket FPR you could put towards a cheap ecu and then you could get your afr's right without fighting a shitty FPR

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