Trademe fuel pressure regs.

[Crampy]

Just wondering if any of these are any good? Anyone used any of these?

Or, am I better off buying a Sard, Aeromotive or Malpassi fuel reg?

http://www.trademe.co.nz/Trade-Me-Motor ... 70.htm?p=1

http://www.trademe.co.nz/Trade-Me-Motor ... 70.htm?p=2

http://www.trademe.co.nz/Trade-Me-Motor ... 57.htm?p=9

http://www.trademe.co.nz/Trade-Me-Motor ... 0.htm?p=19

[postfach]

My personal opinion is stick to a good known brand and don't buy imitation stuff, but often there are cheaper options out there which are still quality. I don't know of anyone who's used any of the ones you linked to there so I can't comment on those.

[Burning Angel]

interesting, the third link says its a rising rate regulator but then goes on to say the ratio is 1:1 therefore making it linear(i think)

i probably wouldn't use a rising rate with a stock ecu as the mixture would become richer as load increases because of increased fuelpress. unless of course thats the desired result(ie more boost or summing)

[AE82 FXGT]

Your fuel system is not something you should skimp on.

I would hate to have the reg fail and drop pressure causing the car to run lean.

I got a sard one of fortyone.co.nz for $195, keep in ming you'll need a gauge on top of that price, and they gave me a great deal on both.

[escortman]

i bought one of them combo deals off TM 500hp walbro pump and sard reg for $430

[20v_rollaboy]

Yep i agree, get a brand name one. Dont get one of the trade me $1 reserve specials.

We had one on a GT Starlet running a td04. Guage never worked from the beginning, and after a couple days was leaking fuel. Bought a Sard the next day.

[gasman]

i thought even your stock is raising rate 1:1 if your boosting it. the only difference is that you can adjust the preload on the diaphragm so that the overall pressure across the range will be higher

[strx7]

some raise the pressure at say 1.2 or 1.4 psi fuel pressure for every 1psi boost pressure.

[matt dunn]

I got a sard one of fortyone.co.nz for $195,

Genuine? Bloody cheap if it was.

May have to look there myself.

[gasman]

some raise the pressure at say 1.2 or 1.4 psi fuel pressure for every 1psi boost pressure.

makes more sense being a "raising" rate.
then in that case what are all tose tm tards going on about callint it raising rate 1:1 when a stock one can do that

[Crampy]

some raise the pressure at say 1.2 or 1.4 psi fuel pressure for every 1psi boost pressure.

makes more sense being a "raising" rate.
then in that case what are all tose tm tards going on about callint it raising rate 1:1 when a stock one can do that

From what I understand, my stock Reg won't do that. It only works with vacuum and won't increase pressure with boost. My car is a stock 4AGE, which I'm turboing. Rising rate of 1:1 means it increases fuel pressure by 1psi for every 1 psi of boost, correct???. That's what I want.

I really need an adjustable reg, so I can get fuelling sorted, as I don't have much tunability with my setup, (No aftermarket ECU).

[Crampy]

i bought one of them combo deals off TM 500hp walbro pump and sard reg for $430

I've already got a Walbro pump off trademe for a good price. I hadn't heard of these combo deals when I got it though.

[Crampy]

Your fuel system is not something you should skimp on.

I would hate to have the reg fail and drop pressure causing the car to run lean.

I got a sard one of fortyone.co.nz for $195, keep in ming you'll need a gauge on top of that price, and they gave me a great deal on both.

Damn, that is a good deal.

I agree with you, my fuel system is something I shouldn't skimp on. For that much, it is definitely worth getting genuine.

So, Sard from fortyone.co.nz seems to be the best deal so far.

[Crampy]

Also, does anyone know what the stock fuel pressure of a Bigport Redtop powered AE92 FXGT is? Is it 2.5 Bar or 2.9Bar?

[strx7]

most likely 2.9 bar most toyota's run 42psi base pressure

[Crampy]

Cheers.

[AE82 FXGT]

Yeah, genuine.
It was during the first groupbuy.
I paid and asked for an 8mm one but he sent me the RJ type (worth more), when I emailed him and asked about the mistake, he let me keep it!
So I got a $&#$% good deal.

Don't expect this to happen though.

[matt dunn]

From what I understand, my stock Reg won't do that. It only works with vacuum and won't increase pressure with boost. My car is a stock 4AGE, which I'm turboing.

A stock toyota reg will compensate for boost.
I actually think a GE and a GZE reg are the same.

I use a standard 20V on on my Turbo 20V race car and it raises at 1:1 on boost.

Matt

[method]

My trademe one seems fine.

I dont really see how it could suddenly drop in pressure leaning your engine out unless the spring relaxes. But seeing as its not exposed to heat etc it wont happen.

1:1 rising rate FPR's are pretty simple, you could make one you're self..
All cars standard regulators are 1:1 and will rise on boost.

I wouldn't trust a non 1:1 thats cheap though. They are a little more sophisticated.

[matt dunn]

My trademe one seems fine.

I dont really see how it could suddenly drop in pressure leaning your engine out unless the spring relaxes. But seeing as its not exposed to heat etc it wont happen.

1:1 rising rate FPR's are pretty simple, you could make one you're self..

I wouldnt trust a non 1:1 thats cheap though. They are a little more sophisticated.

The problem with the cheap ones seem to be inconsistant pressures.

The base pressure, ie no vacuum or boost, will vary for no reason with temp and fuel flow, meaning that the fuel presure may vary across the whole scale between one run and another for no reason.
We had a crap one on the focus which had data logged fuel pressure and the readings were all over the show. We ended up with a sard, and now the fuel pressure curve exactly matches the manifold pressure curve.