piggy backing onto the factory ECU

pete wood · 28 Apr 2006, 11:22 am

Has anyone on here set up their standard ECu with an aftermarket one piggybacked onto it?

I'm interested in doing this as I believe my EJ25 is quite conservatively tuned. I'm also inclined to think that the mixtures are very rich. So in the interests of power and economy I'd like to have a go at the piggyback thingo.

I know you're all going to say just take the factory ECU off, but for Legal reasons I can't really do that.

Any tips on ECUs or whatever would be good too.

HotRodMatt · 28 Apr 2006, 11:28 am

I think the scoobies use a memcal system like GM. If so, get a new memcal burned and plugged in.

speedster356 · 28 Apr 2006, 11:40 am

I have a kit that is sold by Jacar that is an AFM interceptor. It's programable via a laptop, so you can trim your AFRs. There are plenty of units on the market.

MikeM · 28 Apr 2006, 11:54 am

pete wood wrote:I know you're all going to say just take the factory ECU off, but for Legal reasons I can't really do that.

Well in that case I think you'll find a piggy back is illegal too.

If you have to, and you feel so inclinded have aread of this

http://www.jaycar.com.au/productView.asp?ID=BS5080

And give one of these a crack.

http://www.jaycar.com.au/productView.asp?ID=KC5385
http://www.jaycar.com.au/productView.asp?ID=KC5384

pete wood · 28 Apr 2006, 3:10 pm

Just bought me the book,

http://www.jaycar.com.au/productView.asp?ID=BS5080

I'll have a read and go from there. Shame the salesboy (looked about 14) didn't have a clue, oh well, I'll figure it out for myself.

Thanx for the tips guys.🙂

gull · 28 Apr 2006, 3:16 pm

you will have 128hp at the wheels so why bother

pete wood · 28 Apr 2006, 4:57 pm

gull wrote:you will have 128hp at the wheels so why bother

what tha?

this is the NA 119kw jobbie, not the turbo STi EJ25.

speedster356 · 28 Apr 2006, 6:51 pm

Pete.
I have the digital fuel adjuster assembled and the hand controller that you use for that and other kits. I'm not using it, you can have them both for $70 if you want them. Brand new and never been mounted.

gull · 28 Apr 2006, 6:56 pm

saving for my gear box are we Peter ? seagull

VWCOOL · 28 Apr 2006, 8:43 pm

Talk to MRT in Sydney or ChipTorque in Qld about tuning your PCM. But beware, if it's in a VW - gearboxes WILL break... 😉

pete wood · 29 Apr 2006, 2:48 pm

No it won't. It's got a kombi box and CVs. Besides, I drive like a Nana.🙄

HotRodMatt · 29 Apr 2006, 5:56 pm

Kombi boxes can still break, even with Albins gears...

pete wood · 30 Apr 2006, 12:44 pm

how much power does the cranky one put out? I'm guessing a bog stock ej25 puts out less than half.

BTW, what size motor is he using now? is it still twin supercharged?

choppa · 8 May 2006, 2:32 pm

speedster356 wrote:Pete.
I have the digital fuel adjuster assembled and the hand controller that you use for that and other kits. I'm not using it, you can have them both for $70 if you want them. Brand new and never been mounted.

Peter
I would be interested in these kits.
If Pete isnt that is.
Did you find they made any improvement?

gull · 8 May 2006, 2:43 pm

looking at that kombi box gear set , was that in an off roader ?