HKS PFC F-con on my miata? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-10-2015, 03:53 PM   #1
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Default HKS PFC F-con on my miata?

just put a deposit down on a mk1 1.6 mx5 im picking up tomorrow . it has a gready dump valve and straight to inlet no intercooler . has a HKS PFC F-CON in the glovebox wired up . how good are these / how much boost / power can i run with these?


thanks
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Old 05-10-2015, 04:18 PM   #2
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#Inb4h8
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Old 05-10-2015, 04:41 PM   #3
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Why are they that bad ? For a cheap startup car ... Considering ivebpaid 1400 for the whole car ?
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Old 05-10-2015, 04:46 PM   #4
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Search. Band-aids/piggybacks are bad.
Thats cool if you got it with the car, but go ahead and throw it in the trash and get something that works properly.
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Old 05-10-2015, 04:48 PM   #5
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Such as megasquirt ? Aren't they OK for a starer setup until in want bigger power or am I better of running stock ecu with nothing else untill I get megasquirt etc ?
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Old 05-10-2015, 05:00 PM   #6
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You cannot run stock ECU only with the turbo.

The PFC FCON is probably fine for low boost.
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Old 05-27-2015, 05:36 AM   #7
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Quote:
Originally Posted by welshd1k View Post
just put a deposit down on a mk1 1.6 mx5 im picking up tomorrow . it has a gready dump valve and straight to inlet no intercooler . has a HKS PFC F-CON in the glovebox wired up . how good are these / how much boost / power can i run with these?


thanks
A little searching in this topic could have gone a long way.

This is a band-aid unit. It is only capable of so much compared to something such as a megasquirt or any full standalone. Like stated above you can run some very low boost and not have to worry too much, but it is extremely recommended you go standalone.

From my understanding with a band-aid is they cannot completely change fuel injection and specific mapping. You are stuck with purely adding, which again, for low boost you shouldn't be too worried about, but for the longevity of your engine its recommended to go standalone.
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Old 05-27-2015, 07:51 AM   #8
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<p>The f-con has *****. &nbsp;They dont do anything.</p>
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Old 05-27-2015, 10:06 AM   #9
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Quote:
Originally Posted by Braineack View Post
<p>The f-con has *****. &nbsp;They dont do anything.</p>
I disagree strongly, but will not make the argument that they're a replacement for a good tuning solution.

The FCON itself also does not have *****.
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Old 05-27-2015, 10:12 AM   #10
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<p>Am I thinking of the VPC?</p><p>whatever the case, it was pretty much pointless and did nothing better than I was able to achieve with a bipes/fmu combo.&nbsp;</p>
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Old 05-27-2015, 10:15 AM   #11
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Quote:
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<p>Am I thinking of the VPC?</p><p>whatever the case, it was pretty much pointless and did nothing better than I was able to achieve with a bipes/fmu combo.&nbsp;</p>
VPC has *****, yes. Believe it was available for 1.6, it's main purpose was to delete VAF/AFM/MAF.

The PFC FCON is a "headunit" only. There is an adjustable selector within for different maps, but if you want to play with *****, you need to add something like a GCC or EGC, both of which have ***** that actually do things. Very rudimentary things, but they do things. (GCC trims/adds fuel -12%/+16% across set RPM points, then blends, EGC does similar things, but timing.)

Honestly, it was very powerful. In 1992.
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Old 05-27-2015, 10:17 AM   #12
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<p>sounds awesome!</p><p></p>
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Old 05-27-2015, 10:19 AM   #13
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hit the afterburner bro
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Old 05-27-2015, 10:22 AM   #14
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Quote:
Originally Posted by Braineack View Post
<p>you mean it was really powerful after 5.5K in open loop...for making your bumper black with soot</p>
I mean, you can make all these statements and that's cool, but i've actually, you know... used them. And still do.

My bumper was black with soot on stock ECU. As a matter of fact, the car runs LEANER in boost/open loop than it did in stock form. I like hanging around at a solid 12:1 to redline, instead of dipping into the 9s and gradually richening all the way to 10.1:1. Big improvement.

Again, would i use it on a Miata? **** no. Will i continue using it long term on the MX6? Probably not. There's literally nothing it does better than Megasquirt, besides festoon your cabin with lights and *****. I'm simply saying that this was hot **** over 2 decades ago. So hot that Millen used it on a few Pikes Peak cars.
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Old 05-27-2015, 11:23 AM   #15
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With out the gcc controller u can not trim the excess fuel, the pfc unit has switches for different map settings, u select one that suits then trim fuel with the gcc, the PFC unit should come with a specific rom chip to suit the miata.
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Old 05-27-2015, 11:38 AM   #16
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Or just buy a proper ecu instead of dabbling with fail and aidz
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Old 05-27-2015, 11:41 AM   #17
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Quote:
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Or just buy a proper ecu instead of dabbling with fail and aidz
This is the year 2015. Anyone who does anything different is a moron.
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Old 05-27-2015, 11:48 AM   #18
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<p>
Quote:
Originally Posted by concealer404 View Post
This is the year 2015. Anyone who does anything different is a moron.
</p><p>qft.</p>
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