NAY93WRX

iTrader: (3)

Hey guys,

since spending a small fortune at my local Scooby garage, ive become pretty pally with them and basically they let me try bits and bobs on the car.

so, im thinking about trying a Z4 ecu, I know its a simple swap for the existing ecu but how do I know its a Z4?

cheers all.

LegacySTi

iTrader: (13)

not sure if you do besides the casing coving............

as in someone coulda switched boards

myblackwrx

iTrader: (1)

Boost Targets & Fuel-Cut Limits
WRX/STi Saloon ECU's 2C, U8, W6, W9 - As above, 11.47psi held to redline. Fuel-cut 14.57psi
WRX (1995/96) ECU Z4 - 12.71psi, dropping to 11.78psi @ 6600rpm. Fuel-cut 15.65psi

If you can borrow it check to see how hard your original ecu boosts compared to the z4 when i changed mine the car was a lot smoother through the revs.
If you do want a bit more power another option (more expensive though) is from www.polarperfromance.co.uk. they have 3 options of chipping your original ecu.

DiddyWRX

I've just put a Z4 ecu in my WRX and it certainly feels more powerful and smoother to drive! A big improvement!

Claaarkio

iTrader: (1)

Doing mine tomorrow!! then Rolling Roading it!! can't wait

DiddyWRX

It's very good stuff Claaarkio plus you now have the ability to wind the boost up slightly more safely

Claaarkio

iTrader: (1)

I will eventually getan esl chip i think, but for now i'm just getting the z4 ecu from my brother who is getting his apexi fitted tomorrow.

Looking forward to see how different it feels!

Dave

DiddyWRX

It is very different I feel, much smoother and hold on to your *** if you ever floor it in 1st gear as by the time the gear is nearly over it gives u a big shove of boost then kicks it hard into 2nd! lol

myblackwrx

iTrader: (1)

Check out PolarPerformance for some interesting news on the ESL chipping solutions.

Andy Stevens

It'll say Z4 on the case in big letters. Or is this a trick question?