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Old 10-20-2002, 10:36 PM   #1
2.FIVEL
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Default Link Plus ECU; worth it on a NA?

Would it be a worthwhile investment, combined with injectors, larger pump and a FPR, while NA? It would seem to allow for some more aggressive fuel mapping, and take full advantage of the other fuel mods. Perhaps something else can be used with the same results more affordably? Input, anyone?
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Old 10-20-2002, 11:16 PM   #2
zzyzx
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What are your goals?

This question aside, unless you do other major internal mods, you won't need an FRP/larger fuel pump/injectors. These parts would be a waste of money.

- Steve
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Old 10-21-2002, 12:03 AM   #3
tcs007
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Sorry to hijack, but I have been wondering this for a while as well.

I plan on having head work done in a year or so, but I'll be leaving the other stuff alone. For a while.
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Old 10-21-2002, 04:44 PM   #4
2.FIVEL
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Goals... well, I am not opposed to a full out NA built motor, so lets say that long term wise, I run cams, and heads and then need to introduce upgraded fuel delivery. Would the Link be a wise way to manage it?
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Old 10-21-2002, 04:59 PM   #5
8Complex

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Well, take a look over here... http://www.8complex.com/rdruns/index.html. Note all of that is WHP.

Those are a few RoadDyno runs I did with some minor mods, stock injectors, SVX FPR (lowers FPR to ~31-32psi at idle with fuel pump), and Walbro fuel pump.

My car runs very strong right now... I'd say I got another few HP out of my last tuning session after a few recent mods. My total mod list as of right now :

ACT Clutch
JUN Flywheel
Stromung non-resonated midpipe
WRX backbox
Knife-edged throttle body
TB Coolant Bypass mod
RC 440cc Injectors
Parallel fuel line mod (a'la my own creation as I think other do it differently)
Removed injector air bypass solenoid & related equipment
Haltech E6K

Not a whole lot of stuff, certainly not enough to net the HP gains I do with the stock ECU. I probably tune up and gain an extra 15-20HP with the ECU.

Oh, and this is in preparation for turbo, so it's not just a waste of spending. Otherwise I'd have cams, built motor, etc. as well.
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Old 10-21-2002, 05:47 PM   #6
PHATsuby
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i am also looking into getting this in preparation for turbo. Tom at ludespeed said it would probably be wise to get it while NA and learn how to tune it while i cant break anything. thing is what will it replace in terms of other engine management that i will need? will it replace everything else? like a J&S safeguard? S-AFC? also where is a good place to get these and how much should i look to pay? any problem with getting a used one? thanks, sorry to hijack.
Ben
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Old 10-21-2002, 06:07 PM   #7
2.FIVEL
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Just a note on cost, PHAT, Tom quoted me $1300 for the Link w/ the PClink, from him.
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Old 10-21-2002, 06:21 PM   #8
8Complex

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In the ECU forum I made a ECU FAQ and Comparison post (it's up at the top) with details on most of the ECU's.

The Link will fully replace your stock ECU and will have some sort of knock correction in it. You shouldn't need anything other then that to run perfectly (well, other then patience and tuning knowledge). Injectors and a pump come later if you plan on going turbo, as well.
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Old 10-21-2002, 08:15 PM   #9
2.FIVEL
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Awesome info, 8. But could it be applied to nitrous applications, like a different fuel map when using it?
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Old 10-21-2002, 08:50 PM   #10
8Complex

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I'm not entirely sure about the Link, but I know that some ECU's have N2O related fuel corrections. My Haltech, for instance, has an input that will control the N2O and retard timing accordingly. Not exactly adding fuel, but I'm sure you could pull something off like that with some circuitry and the fuel trim knob input.

I think that if an ECU senses the cooler intake air, it will utilize it's Intake Air Temp maps and add fuel accordingly.
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