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Old 28-04-2003, 06:41 PM   #1
Maz323f
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ABOUT: FSE Boost Valves/Malpassi Fuel Pressure regulators

Hi All

Has anyone installed and FSE boost valve on a 1.8 16V 94-98 Astina? If so are they worth it?

Cheers
CraigC
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Old 29-04-2003, 10:13 AM   #2
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Yeah i have,and it has made an improvent to mine :P It makes it more responsive,just dont expect it to be a huge gain :wink:
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Old 29-04-2003, 10:50 AM   #3
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Personally I can think of a lot more better things to
spend the money on than an adjustable FPR on a N/A.
Would only do it after you have added every other mod
to the car

Regards

Mal
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Old 29-04-2003, 11:29 AM   #4
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I agree with Mal,
If i were you Maz323f i would get a freeflowing exhaust,and sports airfilter(ie K&N) before fitting a FSE valve :P
As i had done everything else previously before i fitted the FSE valve,fitting it first without the above mentioned mods wouldnt reap as much gain as with the other mods :wink:
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Old 29-04-2003, 11:35 AM   #5
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WTF is a FSE Boost Valve?
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Old 29-04-2003, 12:47 PM   #6
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Its an Adjustable Fuel Pressure regulator,which replaces the pissy little stock 1 on the fuel rail,with 1 that you can adjust the fuel presure with :P
Which allows for a higher fuel pressure to take out most factory flatspots,it practically adds more fuel(makes it richer)thus making it more responsive :wink:
There are some downsides to this aswell but,having it turned up to far can be fatal to the standard fuel pump & Injectors :shock:
Its the risk to take when you want more power but :twisted:

Here is a pic of 1
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Old 29-04-2003, 03:29 PM   #7
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i've got one. I got in when my car was still NA, as it was something i could carry over to the turbo conversion. All i had at the time was a K&N/CAI setup and even with only that i could notice the difference.

Is it worthwhile? i'd say yes. Even though i don't actually need it at the moment as the injector duty is nowhere near maxxed out.
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Old 29-04-2003, 04:04 PM   #8
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i've got one on my v6, installed after CAI.
I noticed an impressive difference in power. And it eats fuel like anything unless u keep it turned down.
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Old 29-04-2003, 09:57 PM   #9
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Yeah they are great for tip-in or throttle response but are not all
that good for closed loop or fuel economy. By turning it down you
defeat the purpose of having it.

I have heard that you can squeeze the stock FPR to make it
hold more pressure. I cant recomend it as a mod just know
a lot of people do it to save the $300 to $400 bucks.

Regards

Mal
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Old 14-07-2003, 03:28 PM   #10
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Does anyone know who supplies and fits a FSE for a SP20 in Sydney.

Thanks,
TDK
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Old 14-07-2003, 08:03 PM   #11
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The BA uses (for lack of a better name) what Bosch a calls Motronic E EFI system.
The CPU opens the injector for a predetermined time for current engine conditions, the fuel pressure (controlled by the FSE) can change the amount of fuel injected in that time.
The O2 sensor will cut this time back if the mixture becomes too rich or increase it if too lean, the FSE will ensure, if in doubt, you are in the rich (power/safe) area than in the lean (economy).
Sounds like a nice move, don't go beyond your current engines limits as the CPU will not cope too well.

Rod
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Old 15-07-2003, 07:24 AM   #12
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Quote:
Originally Posted by TDK
Does anyone know who supplies and fits a FSE for a SP20 in Sydney.

Thanks,
TDK
I got mine for my BA at autobarn.

The unit is the same across all cars, but the adaptor for the fuel rail will be different. they can just get the right one in for you if they dont have it. Mine arrived the next day.
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Old 15-07-2003, 09:00 AM   #13
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Thanks Dogo.

Whats the difference between a FSE and a FPR?
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Old 15-07-2003, 01:44 PM   #14
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Its the same thing man, FSE is the brand of the FPR :wink:
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Old 17-07-2003, 02:05 PM   #15
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I called Autobarn (Auburn, NSW) today. They said the only AFPR they have is a Malpasy (Malpasey?). It costs $250.

Dogo, which Autobarn did you get the FSE brand from. Is the Malpasy brand any good.

TDK
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Old 17-07-2003, 02:29 PM   #16
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the FSE is more or less a copy of the Malpassi, but apparently better made that the Malpassi
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Old 17-07-2003, 08:04 PM   #17
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Does anyone know where i can get a FSE brand FPR.
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Old 17-07-2003, 08:37 PM   #18
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If u increase ur pressure! u will need to increase the timing! Thus giving the engine more time to burn the extra fuel! Nice power increase + much better throttle response! If ya cant manually change the timing, the ecu will shorten the injector duration until it hits its minimum setting its programed to do! After this the car will start to run rich! and from what i know from dyno tuning a rich motor runs cool but has less power! A lean motor runs hot but lots more power!

Remember! nearly all aftermarket tuners that put chips in are just advancing the timing and leaning out the mixture for the main driving conditions! Eg: Full Throttle! and leave the crusing program standard!

So keep ur chiped engines well serviced! Oil change's every 5000km!
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Old 18-07-2003, 10:33 AM   #19
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Whats the difference between a Boost Valve and a Fuel Pressure Regulator. If you have a look at the FSE website www.fuelsystem.co.uk you will see that they have both. My car does not have a Turbo, but i do have a Unichip piggy back computer. Which one would be applicable for me.

Also, does anyone know who sells the FSE brand.

Thanks,
TDK
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Old 18-07-2003, 11:16 AM   #20
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These guys are great! email him and he will send dyno charts and give you honest advice...

I have been meaning to get one for ages but I still cant justify the $450 when I can buy an electronic boost controller for that...

I have heard of pressing the standard fuel pressure regulator in with a screw driver which increase the pressure but if you do it to much you will screw up your injectors
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