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Old 10-26-2001, 01:53 AM   #1
Kcz
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Default Unichip installed!

Finally got my Unichip installed. I got the add on for it to control an additional injector. The injector is a 550cc, mounted on the intercooler. The car runs much smoother. It seems to be pretty bullitproof now, running at 5psi. As soon as I get a boost controller I can crank up the boost a bit. I'll post pics of the setup here in a few. If I can find a scanner I'll post the dyno results also.
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Last edited by Kcz; 10-26-2001 at 02:18 AM.
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Old 10-26-2001, 02:21 AM   #2
Kcz
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Oops, it wasn't insalled, it was installed. Oh well. Here's a couple of pics:
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Old 10-26-2001, 02:22 AM   #3
Kcz
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Unichip. Not much to it, just a little silver box.
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Old 10-26-2001, 02:27 AM   #4
Kcz
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A bad pic of the injector on the IC. I'll have to take some better pics in the day time.
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Old 10-26-2001, 02:38 AM   #5
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why in the IC?
why not in the intake manifold plenum?
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Old 10-26-2001, 02:40 AM   #6
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Question Can you explain the setup a bit?

So I understand the Unichip controlls another injector? So it shoots extra fuel into the intake plumbing?

LaterZ!
Darren!!
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Old 10-26-2001, 02:56 AM   #7
Kcz
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I would have cost a whole lot more $ to get the boss welded to the intake manifold. If I was going to do that I would have had four 550's on the manifold and had them take over completely at WOT.

Basically, Penphoe, it adds extra fuel to the air before it even reaches the stock injectors. It all goes to the same place in the end.
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Old 10-26-2001, 02:21 PM   #8
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Hey Kcz. Perhaps you could enlighten a few of us... What is the Unichip doing for you? And for that matter, what other Ignition and Fuel controls are you running? S-AFC, ITC.. ect.. I was under the impression that the Unichip was a WRX upgrade, not a 2.5RS upgrade.

Thanx.
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Old 10-26-2001, 03:02 PM   #9
t.rod
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I was just going to ask the same question. Who did the install for you? Trey?
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Old 10-26-2001, 03:46 PM   #10
preza
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So tell us what it dyno'd at ?
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Old 10-26-2001, 03:48 PM   #11
RageHardIntoTheBendies
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The UNIchip is a piggyback unit that will controll Timing and fuel delivery it will also allow you to raise the redline. The only reason it has been WRX exclusive is becuse the wiring harnesses did not exist for the RS.
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Old 10-26-2001, 03:58 PM   #12
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how much was everything?

Did you have to hack into your factory wire harness or is there a "plug and play" type adapter?

Chad
93 1.8T
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Old 10-26-2001, 04:49 PM   #13
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What Rage said is exactally what it's doing. Timing and fuel delivery. I have not yet raised the rev limiter. The unichip is doing it all. I have no other kind of control units. I was able to get rid of the RRFPR. The only thing I don't like is that the Unichip can not control boost unless the factory ecu can. So, I will be getting an ebc, probally an AVC-R to get good boost management. The install and dyno tuning was done by the great people at Cobb Tuning. The Unichip is not specificly for the WRX. There are applications for many cars, here's a list: http://www.airpowersystems.com.au/un...lications.html

Last edited by Kcz; 10-26-2001 at 04:59 PM.
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Old 10-26-2001, 06:11 PM   #14
t.rod
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And all this I thought it was for the WRX only.
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Old 10-26-2001, 07:19 PM   #15
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DUDE

why cant you tell us what kind of dyno number you put down ?
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Old 10-26-2001, 11:02 PM   #16
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195ft/lbs of torque, not bad
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Old 10-27-2001, 12:25 AM   #17
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Here's the dyno results:
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Old 10-27-2001, 12:30 AM   #18
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And:
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Old 10-27-2001, 12:37 AM   #19
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how much does it cost?
KW
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Old 10-27-2001, 12:53 AM   #20
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The Unichip itself is $595. The addon to control the injector id $150. Plus the injector $100, plus the injector boss $30. Plus all of the labor charges for installing and tuning. Also don't forget the government gets their cut. So , around $900+labor.
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Old 10-27-2001, 01:26 AM   #21
SubaFastR
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bonehead wop hit refresh and made it look as if I had asked the same question twice.
KW
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Old 10-27-2001, 02:35 AM   #22
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I think the extra injector is a much better idea than a RRFPR. You made a good decision. Shiv says the intake manifold is not designed to be run wet (i.e. fuel in it); and your location on the outside of the TB is better for fuel atomization, according to SDSEFI.com who make injector controllers.

I gave up my RRFPR in March for an SDSEFI.com injector controller and two 480cc injectors, $300 used + $150 for the billet injector mounting plate to go between the TB and intake manifold (normally $600 new and the TB injector plate is a one-off piece).

I added a used APEXI ITC and a used Blitz boost controller and the total after labor was about $1,000 with the injectors. You just gotta know where to look. And, I can tune it or make changes on the fly to timing, fuel or boost, but I wish I could raise redline though.

Wheel HP = 233 at 10 psi at 6,000 feet uncorrected for altitude, without the timing controller = well worth it. I wrote about it at www.imprezars.com/sdsefi.htm if anyone cares.

Larry
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Old 10-27-2001, 05:34 AM   #23
Kcz
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I was considering the sdsefi system. But, when you add the timing control it comes out to about the same price. Sdsefi=$600+ $250 for an ITC thats's $850. The Unichip $595+ injector driver $150+ injector $100= $845 and it's all in one unit. The less the piggy backs the better IMHO. The nice thing about the sdsefi is that you can tune it yourself. However I didn't want to mess with the tuning. I wanted to set it and forget it. Your running twice as much boost as I am. It should be interesting when I get my boost controller how much I can put out. I am saving my pennies as we speak!

Last edited by Kcz; 10-27-2001 at 07:39 AM.
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Old 10-28-2001, 01:57 AM   #24
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One thing to remember is with one 550cc injector you have enough fuel for about 260-270hp at the crank. You likely wont run out of fuel below 8-10 psi. Whereas with a RRFPR and stock injectors the limit is about 240hp at 80psi fuel pressure. So, definitely extra injectors is the way to go for max power.

With two 480cc injectors I have enough for about 340-350hp at the crank if the stock injectors will support 170-180hp, but I may never push it that far again. Can you say Kaboom! (I seem to recall that one calcualtion of brake specific fuel consumption BSFC said I could support 416hp at crank, hmmm... )

Larry
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Old 10-29-2001, 01:15 AM   #25
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Okay here is my question for those of us able to use larger injectors like SR20DET's and Legacy turbo's etc with the stock ECU.
Can this control the pulse duration for the larger injectors for cold start up and regular idle as well as correction (which it obviously does) to compensate for almost double output injectors (@360-390cc @43psi compared to @260-280cc @43psi stock)? I would prefer to have this and no display then to have an SAFC which even then will still have problems controlling all factors like midrange switch over.
Rich
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