is it ok to swap a u8 to a z4 ecu mines a 1993 wrx import, z4 from 1996 wrx import ???

 

should be fine mate

a ub has 11.47psi
the z4 12.73psi

a little better performance too

 

cheers m8

 

you said "mines" do you mean the z4 ecu has a mines chip fitted? if so i wouldnt bother with the mines chip. its too agressive for even 99ron fuel. take the chip out, reconnect the j1 resistor and run with the z4 as it is if i were you.

 

i throught he ment mines as in , 'mines a u8'
if its chiped. will need setting up for that car.
or may corse issues

 

sorry i did mean mines a u8 ecu, yes mine is chipped but just plug and play, no map done just increased boost and delimiter, hope this makes sense.

 

if its the z4 thats chiped. id just sell the z4 & put the chip in the u8.
z4 ecu's are worth more standard mate.

due to the higher psi from standard

 

ok my u8 is chipped, z4 is not, reason i am swapping is i am having a esl board fitted soon, cant be done on my u8 as chipped, and told z4 is buy far the better ecu for what mods i am having.

 

it makes no odds if you use the u8 or the z4 for your esl board. you can remove the chip from the u8 and fit esl.

 

no, thats wrong mate. both them ecus are the same once chipped. the z4, once chiped. reads one the map thats placed on it. the u8 is an import ecu the same.
just take the chip/eprom out the u8, & put the esl live map board in

whos mapping it for you, ask them and they should say about the same mate

 

sorry, posted at about the same time