What ECU to go for?

[l2eeFer13]

So after hmmming and harrrrring about a ECU for my B4, I have returned to the forum for help

TBH i dont know a fricking thing about ECUs. All i know is that their not cheap and everyone seems to go for a Link G4 =)

So my combo goes as followed

I have a 99 B4 Legacy

Ej207 long block

TD06 Turbo

Equal length headers with a 3inch turbo back

550cc injectors

Probably have to do fuel pump but i havent gotten that far yet into digging

What ECU should i be looking at? I have a tuner ready for when everything is bolted on and running, I will never be plugging my laptop into the ECU and making changes myself.

So theirs like G4 storms, extreme, lightning, atom (some even plug and play but mines going to need repined no mater what)

And then theirs ECUs that plug into ECUs and wtfs

Im assuming that one has more features than the others like a basic/medium/advanced options list.

Came across this on Tardme. Seems pretty cheap comparing it to other Extreme links http://www.trademe.co.nz/motors/car-parts-accessories/other-accessories/auction-980183914.htm

So should i be going for a link or something cheap and nasty

[l2eeFer13]

Then theirs this

http://www.trademe.co.nz/motors/car-parts-accessories/subaru/ecus/auction-978880761.htm

[Guest]

That g4 is a bargain. Just be a bit careful as its tm and used...

[ADIKT]

 evowrx said:

That g4 is a bargain. Just be a bit careful as its tm and used...

Aaaaand its gone. Not to me though

[Guest]

Get a g4 or + you wont regret it. Resaleable value of car is higher with a link too. Wire in is handy if you need to repin anyway.

[hijacka]

Haven't you got a g4 plugin f.s Clint?

[Guest]

 hijacka said:

Haven't you got a g4 plugin f.s Clint?

Went pretty quick.

[ADIKT]

I will have a v3/4 G4 plug in for sale soon - going with a wire in instead

[l2eeFer13]

After some googling can I just use a V7 STi ECU and get that tuned??

I picked one up when i grabbed the long block from the same guy

[boon]

 l2eeFer13 said:

After some googling can I just use a V7 STi ECU and get that tuned??

I picked one up when i grabbed the long block from the same guy

If you're using a V7 loom

[slystiguy]

link g3 or g4 are good from the tuners point of view, easy to use/upgrade/modify for extras. Can get plug in versions quite cheap 600-1200+ . You could get a plug in v5/6 model and it should fit your ecu plug setup, just have your tuner re-pin some wires before it's put in and you're done.

stay away from possum link or anything or that era - They have there place but it's for near stock cars to get a bit more oomph from a bolt in product IMO. Waste of time and money wiring one into a car like yours

Power fc could be a good option if you're going to re-pin the loom to suit they are quite capable but getting old and not as good as link

p.s good time to grab a wideband o2 sensor

[l2eeFer13]

Cheers Sly. I will be going be going with the plug in v5/6. If only they were a lot cheaper =)

http://www.speedtechnz.com/shop/brands/link/G4+plug+in+Engine+Management/Subaru/WRX+Link+G4+-+Subaru+Impreza+V5+V6+WRX+STi.html will get map sensor so i can delete the MAF

Will i need the intake air sensor?

Can you please explain the wideband o2 sensor and what i will need it for?

[l2eeFer13]

Actually dont worry a quick google gave me a good explanation for idiots

http://legacygt.com/forums/showthread.php/wideband-o2-sensor-idiots-22364.html

[Guest]

V7 sti throttle body will have a 2.5bar map on it.

Yep you need iat.

[l2eeFer13]

 evowrx said:

V7 sti throttle body will have a 2.5bar map on it.

Yep you need iat.

The dude i bought my V7 mani off completely stripped it down. Which f***ed me off cause i wasnt their when he dropped it off. So i was thinking of just chucking all the TT gear on the sti manifold while doing the split fuel rails and coil pack.

So i would need the Link 2.5 map now ae?

[Guest]

So you have no throttle body, rails or loom? Ive got a 2.5 bar v7 sti one here which will be spare soon.

Need mac valve boost solenoid too.

[l2eeFer13]

 evowrx said:

So you have no throttle body, rails or loom? Ive got a 2.5 bar v7 sti one here which will be spare soon.

Need mac valve boost solenoid too.

Nah I have nothing. I might just sell the bare intake manifold and buy a complete V7 one with fuel rails and all. So if I do that then I won't need the map because they already have one on the TB?

[Guest]

Correct. Get a v7 sti mani with tb, injectors, rails, sensors and mani loom.