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MichaelJS

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Posts posted by MichaelJS

    Advice for suspension/wheel setup

    in General Vehicle Discussion

    Posted

    225/40 won't be super skinny, but 225/45s should fit in the guard no worries. likely wouldn't need much guard rolling if any for 235s on a sedan though.

    Stiffer springs help with body roll/keeping the car flat amongst other things, but bouncy is bad for grip and keeping your teeth in your skull lol.

    Spring rates etc aren't generally available for lowering springs from what I know, but you can't go too far wrong, especially not with sti pink springs

     

    V5 STi ecu swap

    in Impreza, Crosstrek and XV

    Posted

    45 minutes ago, RaKid said:

    Please confirm - did you swap an STI ecu into a non-STI?

     

    If yes, you need to change AFM and injectors as well at a minimum. You should also swap your turbo to the appropriately matched STI variant (likely a vf28) and run an STI intercooler.

    You also need to make sure that the ECU you've swapped from was mapped for the same compression ratio as what you're swapping into as there are differences between some WRX and STI builds/years. E.g. some WRX were 9.0:1 yet the STI variant was 8.0:1 (or 8.5:1 - can't remember exact numbers but the point stands).

     

    Someone else will be able to elaborate on this more than I can

    I did. 

     

    From the brief reading I did about it, 99-00 wrxs had the same injectors and afm as the equivalent stis, but I could very well be wrong. I didn't see anything about compression ratios

     

    Not fussed about getting it working, got the thing off a mate for $50 so thought why not? 

     

    Cheers

    V5 STi ecu swap

    in Impreza, Crosstrek and XV

    Posted

    Hi, apologies if this has been covered but I'm well lost. 

     

    Have bought a v5 Sti ecu to swap into my MY99 wrx hatch. I was lead to believe by the aussie wrx forums that this would swap in no worries, aside from having to swap two wires on the blue connector. 

     

    The car runs and drives no worries after plugging it straight in, and swapping the pins over means it won't start. 

     

    After this, the car will only boost to ~10psi and is now drinking fuel even worse than normal lol. 

     

    Is there something I've missed? 

     

    Markings on the board are A19-001 DS2 [N] 

    Ignorant Questions

    in Impreza, Crosstrek and XV

    Posted

    Hi all,
    I've had my 99 gf8 wrx for a month or so now, which has mainly been spent undoing some very questionable modifications and generally tidying it up. I know most of my questions will have been asked countless times here and everywhere else, but I'm not sure where to start learning more specific things so even any pointers on where I should be looking would be much appreciated.

    First off, I've noticed that at times, according to my gauge at least, that my boost will drop about 1psi. This seems to go away when I get in it the next morning and it truly has me stumped. Any ideas what I should be looking for? (gauge normally shows 11.5psi, after I removed the .9mm welder tip crammed in what I think was the wrong side of the tee with the factory pill still there.

    Next, I have a clicking CV in the rear and no shop that I've spoken to can track any replacements down. From what I understand this is pretty rare so I'm looking at going for second hand shafts, so how much cross compatibility is there? Do they need to be from a hatch, can they come from a forester or something etc

    Finally, I'd quite like to get a bit more power out of it as I can't keep up with my father in his type r. I've got a bogan mate who reckons that the ecu will be able to keep up with more boost and that I should be able to put an STI restrictor pill in it without any issues. Is this true, and what adverse effects am I going to see? I know absolutely piss all about that kind of tuning.

    As I said, any other good resources anyone could point me to would also be brilliant.

    Cheers

    • Like 1

    Header Compatibility

    in Impreza, Crosstrek and XV

    Posted

    Hi,
    My father is in the market for some equal length headers for his v4 sti type r. i happen to have a friend who has a set that came off his v8 who's willing to sell them quite cheap, and i just wanted to find out whether these would fit or not on the other car.

     

    TIA

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