can I turn a gf8 Wrx (turbo) to sti eg ecu ,airflow meter,440cc injectors?

[greatdanz]

 chopper69 said:

98 Wrx gf8fk8d ecu has 3 plugs and has 8s on it

Yup then all those ecus ive mentioned will work.

Everyone is confusing you. If your coil pack is in the middle of your intake manifold then Yup v3/v4

Does it have a 260k speedo?

[funkytown]

Revision F is not v3/4.

Other bits im guessing.

[Guest]

Correct marky ALL V5/6 variants run the insert type same as rev a/b/c.

[Timmah]

 greatdanz said:

you can use a 1S from JDM V3 WRX ecu which is tuned and matched to a VF22,orange AFM, yellows. and rated @206kw factory. or you can use a 6S from a V3 STi which i believe has a more mild tune

I used the "75" ecu from a V4 STI RA which has a nice factory aggressive tune when I did my conversion

P-sure the 1s has the mild tune and the 6s has the aggressive tune being the STi ECU and the 1s being the non-STi ECU.

And I\'ve been told that the EJ20G in the Wagon has a 9:0:1 C/R too, something to consider when doing this mod.

[chopper69]

Yeah mine does have the 260k clock sounds like u no ur subarus dan

[funkytown]

 evowrx said:

Correct marky ALL V5/6 variants run the insert type same as rev a/b/c.

Version is taken from mode year which is driven off the revision coding.

For the last time. FFFFFFF is version 5

[chopper69]

Tommah what do you mean c/r and is the 75 ecu yuned to go harder then 6s ecu?

[Timmah]

 chopper69 said:

Tommah what do you mean c/r and is the 75 ecu yuned to go harder then 6s ecu?

Compression Ratio.

Out of the 6s/75 and 1s, I\'d probably go 75 or 6s. Don\'t know how big the difference is between them.

[chopper69]

Sorry yimmah whats there to consider bout c/r??

[funkytown]

The sti ecus mentioned are not tuned for a compression ratio that high. Its proven they tend to det and this prematurely assssplodes your motor.

[Marky]

High compression engine with a low compression - tuned ECU = pingpingpingnunganungaBANGohstink

[chopper69]

So do I run a big front mount intercooler and use 98 petrol

[funkytown]

No you dont run low comp ecu on a high comp engine. It.will.det.

[lachlan]

do a comp test and see what readings you get . compare with sti motor . might be down to a usable level ;D

in reality isnt 1 point in compression = to requiring 3 ron ?

and seeing as we are all 2 points down on the jap 100 yet every sti hasnt holed its pistons ?

and if it knocks its goin to back the base timing off to somewhere its happy ? they dont blow up as soon as you put 95 in the tank do they .

[funkytown]

Just.no

Smite for you. Youre back saying super retarded shit

[Marky]

 lachlan said:

do a comp test and see what readings you get . compare with sti motor . might be down to a usable level ;D

Hahahaha

Go old school

Run 3 headgaskets sandwiched together, hey if you get it down round 7.0:1 then you can run 25psi all day errday

- on a more useful note - it\'s one of those "there are no good outcomes to doing this" things - at best it will run ok until you hit some bad gas, at worst it\'ll kill an already 20 year old motor rapidly

Could using the likes of an S-AFC to pull timing / dump fuel help - or would it negate the gains of using the ecu altogether?

[tebbyj]

As i said earlier, seems easy enough, but will probably turn into a mission.

Having a 260kph speedo doesn\'t that give a big clue to it being NZ new, which means even IF the compression ratio was similar, there would need to be some wiring changes.

Maybe an easier way to attack it is converting WRX hatch to WRX sedan ECU. Ie: same 205kw as STI but less aggressive tuning involved. Or is there still compression ratio discrepancies between sedan and hatchback in straight WRX form?

[Timmah]

 tebbyj said:

discrepancies between sedan and hatchback in straight WRX form?

AFAIK, yep. Non-Sti wagon = 9:0:1 C/R, STi\' Sedan and Wagon are the same. WRX sedan is different at 8:0:1 or 8:5:1. Could be wrong, but that\'s my understanding and a chat with a respected mechanic in chch about doing this mod to my wagon was that he\'s done it and he would not recommend it.

BUuuuttt;

A member here years ago did this mod and then dynoed his car and there was no det.

However, if OP\'s wagon is NZ new, it might have a different c/r altogether.

[scoobygt]

how many plugs at your ecu man? and are they black or yellow? also on the plate on the strut tower does it say ej20g?

[chopper69]

Ecu 3 plugs yellow ej20g

[scoobygt]

so that makes it v3/4, so in theory you can get a vf22, orange afm, yellow injectors and a matching sti ecu and you should be fine, and if you get det its easy enough to switch back to factory!!

[greatdanz]

^^yup as expected a NZ new WRX.

[Guest]

 funkytown']

[quote name='evowrx said:

Correct marky ALL V5/6 variants run the insert type same as rev a/b/c.

/quote]

Version is taken from mode year which is driven off the revision coding.

For the last time. FFFFFFF is version 5

Dont follow how that works. OS is V5- with insert though regardless of applied gonadcode.

FMIC+98=no ping pure win lol.

[funkytown]

follow pattern like so.

gc8x... / gf8x...

where x = a,b,c,d,e,f,g

and rev 1 is a/b.

rev 2 is c,

rev 3 is d

etc etc.

[scoobygt]

the fact that his car has a 3 plug ecu and that they are yellow tells me that the op\'s car is v3/4 also the fact its a ej20g confirms this as well, i\'m guessing it\'s a very late v4 and its right on the switch over to v5??