Firstfives.org

Firstly, I want to say that in my opinion, Mike and Chris are right - the old M30 injectors are identical (e12 era). Then in e28 era - they are the same also, but with another new geometry (same 19 lbs/hour) and in e34 era with only B30 and B35 engines - the injectors are with different part number ...

so with a higher flow rate 3.5 injector the car going to be more powerfull then. am i correct. if considered they the same.?

Hi mike thanks for your advice . I will then leave everything standard.

No, BMW generally put more than adequate injectors on the cars so upsizing the injectors would do no good at all. And many times they used the same injectors on different sized engines, your E12/28 is something we never saw ...

Where are you located? Is there a concern about smog inspection?

I'm from South Africa. :D I still needs to take here for Roadworthy (smog) inspection.

i just don't want to modify the engine with bigger 3.5 injectors if i'm going to abuse the 2.8i in the process. I was thinking along the lines ...

So, let's see, your engine is a 2.8i?? In a 535i body/car???
If this is true, you may need to change the ECU which is in the glove box.
Someone with more knowledge will, I'm sure, get on board here. I just had to ask those questions.
More info, please. Greg

Hi Greg

i dont know about the ecu, i ...

Hi Everone.

My car have a 528i engine and i recently replaced one injector. Now the mechanic told me, i'll get more power if i replace the 528i injectors with 535i injectors.

what's your view on this.? My car is the M535i E12/8 model.

thanks in advance.