WRX RA manifold and ecu

[BC5RA]

+1

7K is STI mapped and found in 96/96 STI RA

It is a desirable ECU as it will also fit into Gen1 RS perhaps you could put it on Ebay OZ.

[smokn4]

 BC5RA said:

W6 identifys it as a 1993/1994 WRX ECU with 11.4 psi

A 1994 WRX RA ECU should have the code W9 so i would imagine that possibly the 1993 WRX RA shares the same ECU as the WRX.

thats weird cos after putting it in i went for a boost round the block and got

9 psi-1st gear

11 psi-2nd

and 13 psi in 3rd

then eased into 4th

[driftrex]

 BC5RA said:

+1

7K is STI mapped and found in 96/96 STI RA

It is a desirable ECU as it will also fit into Gen1 RS perhaps you could put it on Ebay OZ.

just what i wanted to hear lol, hmmm ebay you say, what would it be worth over there?

[BC5RA]

I wouldn't expect it to run exactly 11.4 psi it will differ due to setup.

[smokn4]

 driftrex']

[quote name='BC5RA said:

+1

7K is STI mapped and found in 96/96 STI RA

It is a desirable ECU as it will also fit into Gen1 RS perhaps you could put it on Ebay OZ.

/quote]

just what i wanted to hear lol, hmmm ebay you say, what would it be worth over there?

does yours have boost/rev cut etc

[BC5RA]

 driftrex']

just what i wanted to hear lol, hmmm ebay you say, what would it be worth over there?

I've seen them go for $250 AUS

[quote name='smokn4 said:

does yours have boost/rev cut etc

It's an OE ECU it will have an RPM/Boost cut.

[driftrex]

 smokn4 said:

does yours have boost/rev cut etc

yea it boost cuts at 18psi, i have tried it before, and the rev cut i cant remember what it is, kamineko told me when i bought it but i've never hit it so it must be quite high. used to always hit the standard wrx one.

[smokn4]

 BC5RA said:

The 5th injector is dormant as far as i know. Its there for Group A and Group N homogolation purposes (for rally teams to easily utilise) when active i would think that it either ON or OFF not pulsed.

There should be a discernible difference going from a WRX ecu to an RA version; usually higher RPM and boost.

As far as the inlet is concerned there will be no performance gain there.

regarding inlet,

would it do any damage if i put it on??

even though prob no power gains??

would it just use more gas?

[driftrex]

 smokn4']

[quote name='BC5RA said:

The 5th injector is dormant as far as i know. Its there for Group A and Group N homogolation purposes (for rally teams to easily utilise) when active i would think that it either ON or OFF not pulsed.

There should be a discernible difference going from a WRX ecu to an RA version; usually higher RPM and boost.

As far as the inlet is concerned there will be no performance gain there.

/quote]

regarding inlet,

would it do any damage if i put it on??

even though prob no power gains??

would it just use more gas?

effectively they are the same manifold so nothing would change. would be a waste of time unless you wana paint it up first to look nice.

[BC5RA]

You'll basically be swapping one manifold for an identical one.

It's yet to be proven the 5th injector runs.

If you haven't already you could setup the RA manifold for a split fuel rail and then swap them.

[smokn4]

 BC5RA said:

You'll basically be swapping one manifold for an identical one.

It's yet to be proven the 5th injector runs.

If you haven't already you could setup the RA manifold for a split fuel rail and then swap them.

yea plan on doing that fuel rail mod.

so the 5th injector is basiclly just there for looks??

does not function at all??

[BC5RA]

Not for look's.

Its for Homologation.

[smokn4]

 BC5RA said:

Not for look's.

Its for Homogolation.

Homogolation

meaning??

[smokn4]

converting to rally car???

[kamineko]

WRX and WRX-RA do not share the same ecu. V2 RA's have a different head setup and rev higher. the 7K spoken about above would rev to 7800~7900 with little taper in boost and pulled well with a free flowing turbo back exhaust

i'm impressed that you had the car dynoed driftwrx something i never managed to do with that ecu

--- GC8 A WRX MT U8/W6 AA810

WRX AT V5 AB530

GF8 A WRX MT V9 AB750 *

WRX AT V5 AB530 *

Ver1 GC8 B WRX MT U8 AA810 * RJ2

WRX AT V5 AB530

WRX-RA MT SB 00070 RZ1

STI MT SA 00070 * RZ0

GF8 B WRX MT V9 *

WRX AT V5 AB530 *

STI MT SC 00110 RZ3

Ver2 GC8 C WRX MT Z4 AC121 * D17

WRX-RA MT Z5 AC131 * D18

STI MT 6K AC700 *

STI-RA MT 7K AC710 * D22 AFM: AA160

GF8 C WRX MT 3B AC281 * D19

WRX AT 4B AC291

[BC5RA]

For Group A and N purposes.

In order to have certain tech available, it had to be introduced on the road going versions.

Kamineko, Driftrex i believe made that power through the rear wheels.

[driftrex]

 BC5RA said:

For Group A and N purposes.

In order to have certain tech available, it had to be introduced on the road going versions.

Kamineko, Driftrex i believe made that power through the rear wheels.

correct, also running td05 sti turbo, but had some restrictive factors, eg factory intake, factory tiny topmount, catylic convertor lol. all to be changed very soon tho.

[BC5RA]

Fellas in OZ have made 180kw@all4wheels with this ECU with 18-20psi.

[smokn4]

 kamineko said:

WRX and WRX-RA do not share the same ecu. V2 RA's have a different head setup and rev higher. the 7K spoken about above would rev to 7800~7900 with little taper in boost and pulled well with a free flowing turbo back exhaust

i'm impressed that you had the car dynoed driftwrx something i never managed to do with that ecu

--- GC8 A WRX MT U8/W6 AA810

WRX AT V5 AB530

GF8 A WRX MT V9 AB750 *

WRX AT V5 AB530 *

Ver1 GC8 B WRX MT U8 AA810 * RJ2

WRX AT V5 AB530

WRX-RA MT SB 00070 RZ1

STI MT SA 00070 * RZ0

GF8 B WRX MT V9 *

WRX AT V5 AB530 *

STI MT SC 00110 RZ3

Ver2 GC8 C WRX MT Z4 AC121 * D17

WRX-RA MT Z5 AC131 * D18

STI MT 6K AC700 *

STI-RA MT 7K AC710 * D22 AFM: AA160

GF8 C WRX MT 3B AC281 * D19

WRX AT 4B AC291

so according to this the ecu i have just gotten is a std gc8 ecu???

do the gc8 ecu have higher boost/rpm levels than the gf8 ecu??

as both mine (boost/rpm levels) have raised

[smokn4]

 BC5RA said:

Fellas in OZ have made 180kw@all4wheels with this ECU with 18-20psi.

which ecu

[BC5RA]

The 7K.

[driftrex]

haha buy it!!!! its for sale

[kamineko]

 smokn4 said:

so according to this the ecu i have just gotten is a std gc8 ecu???

do the gc8 ecu have higher boost/rpm levels than the gf8 ecu??

as both mine (boost/rpm levels) have raised

it could be chipped, open it and have a look

exhaust mods will change your factory boost. most 'this ecu boosts xx psi' quotes are pretty irrelevant

[smokn4]

 kamineko']

[quote name='smokn4 said:

so according to this the ecu i have just gotten is a std gc8 ecu???

do the gc8 ecu have higher boost/rpm levels than the gf8 ecu??

as both mine (boost/rpm levels) have raised

/quote]

it could be chipped, open it and have a look

exhaust mods will change your factory boost. most 'this ecu boosts xx psi' quotes are pretty irrelevant

will check 2morro ,

how will i know if its chipped??

or will it be obvious once opened?

[BC5RA]

It will be obvious of you know what too look for.

If you can take a photo and post it in this thread someone will tell you right away.