I was Read BMW forums about raising power... I found guy who changed injectors in BMW e46 320d and reached 200BHP but here is biggest difference between R and BMW. E46 have Garrett gt1749v with vnt.
My friend already bought some stuff.
Map sensor, EGR solenoid , ardunio and Garrett gt2052v from BMW tds.
Turbo mounting bolts are the same as in Rover 75.
First problem is to weld R75 exhaust with this turbo outlet using piece of pipe from BMW.
Vnt controlled by ardunio.
Turbo is bigger so could compress more air, vnt could reduce smoke and get better acceleration at low range of revs.
Will see is this good way, when he mount this stuff.
Ardunio is very good to control vnt boost , for example second friend minted vnt turbo in mg zs idt, and he also reached about 200bhp with 2 bar boost. I think that changing turbo is only way to get power. Also free exhaust by decat
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