Can 1UZ VVTi stock piston do it?

[bmwE34]

I have 98 1UZ VVTi with stock piston comp. 10.5:1 by this compression How much max boost of supercharge can do and safe?

 

[morris]

I had the same setup and ran 10psi okay

 

[tomrapid]

There is a photo of a BMW with M90 supercharger on www.bulletcars.com PHOTOS page 15
this car runs 9lb boost with EMS ecu. There are also some early Bullets with 10lb boost and dual throttle bodies running standard compression. 98 RON fuel and well tuned ecu is a must.

 

[ed_ma61]

dont forget the sjkinny rods under those pistons

 

[Lextreme II]

VVTi pistons have different face design then those earlier models. They are physically the same bore but if you are using them on non-VVTi heads might give you problems. Please see UZFE Family Compatibility