starin

going to fit a de cat pipe to my 93 wrx my mate said i will need a set up after is this true

myblackwrx

iTrader: (1)

No.

starin

cheers i will be fitting very soon in that case any idea how much power i will gain i,m running at about 280 300 bhp on a z4 ecu sti turbo 1.1 bar

myblackwrx

iTrader: (1)

How are you running 280-300bhp already?
The z4 ecu is only rated to 0.87bar boost (260ps).i guess you have a chipped ecu?

Advantages of the decat will be quicker spool up

starin

i,m not sure i got the car in august that is what the ad said it will be going on a rolling road how can i check the ecu

dean_gti

Im running a my99 stock uk with an ae801, mbc to 1.1bar(td04) and japspeed decat dp and a walbro pump with no setup and all is well in my world.


Power no idea lol above 250 im sure.

myblackwrx

iTrader: (1)

Standard ecu



Bottom rhs is where the chip will be if there is one.

starin

i was told the full spec was 300 bhp with a z4 ecu off the sti td05 turbo running 1.1 bar this is my first scooby so everything is new to me need all the info i can get mate cheers

myblackwrx

iTrader: (1)

td05 is the standard turbo for a 93wrx and STIs upto STI 2 iirc.
Z4 is from a late 94-96 wrx and is only 260ps (256bhp)

The boost has been upped to a safe level but i would find out HOW the boost has been upped.

joz8968

iTrader: (13)

Std Z4 peaks at 12.71 and stabilises at 11.78psi which is 0.88 and 0.81bar respectively - certainly not 1.1bar.

So, as long as the Z4 hasn't been chipped like myblackwrx has pointed out, you should be producing around 260bhp. If it does have a chip then, yes, it will be running 1.0-1.1bar and this will allow anywhere between about 270-290bhp.

Easy to check: remove ECU from passenger footwell... remove the ECU's casing and check the bottom right position as illustrated in myblackwrx's posted photo... you'd be looking for a rectangular raised black chip there, the same size as the space it sits in...

Minjeeta

ye'll have tae put a 2 ohm resistor in the o2 sensor switch tae stop the cel light comin on.

myblackwrx

iTrader: (1)

Isn't that for newage cars though?

joz8968

iTrader: (13)

From what I've gathered from numerous threads about that 'mod' lol on here, then yes.