i am thinking of getting a z4 ecu for my00 turbo 2000 uk.is my ecu the 4 pin it is mapped to a td05 turbo so i would have to get one these are they a good turbo.also think the bloke said hes got another z4 ecu with a polar chip in help would be great

 

Won't fit your car is 3 pin and as you've pointed out the z4 is 4 pin.
Save up £500+ get an ecutek remap ,yes it's not cheap, but it's your best option imo without changing the ecu.
TD05 is a good turbo but will have a 90deg elbow and yours is front entry so you will need to convert it (my mate has done this and is vey happy with it)

 

ok cheers mate will the vf 28 turbo bolt straight on to my car

 

direct bolt on but you will need to take it to a rolling road to get it checked out (fuelling,boost control etc).

I reckon 300bhp (+ fuelling mods etc) would be possible.

 

would i need a remap when ive put the turbo on.that would be great thats bout what im after

 

to get the most out of it yes but i believe you can run the vf28 on the td04 map (i.e your standard map) BUT you do need to check it out on a rolling road after fitment (knock will be the main problem)

 

i can detect knock with a link cant i.so i would be gettin bout 300bhp with out a map.with the map wolud they up my boost

 

no you'll possibly get 300bhp without a remap and a little more when it's made safe.
imo fit the turbo and get the remap done at the same time because i don't want to **** up your car based on internet advice

 

ok cheers mate for your help will get the remap done to make it safe