1.9 TDI (2.0) 300 hp compression??

raksike

Active member
Joined
Jan 17, 2018
Location
Estonia
TDI
2.0TDI
Question regarding one build.

VW 1.9 ASZ engine block, which is bored to a 2.0, uses BMP pistons and is with an AGR cylinder head.

Do the pistons need some shaving off to reduce the compression?

Target is to have from this setup 300hp and it should be usable as a everyday car.

Would this setup last without lowering the compression (modifying pistons) ?
 

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
Best to lower CR a touch otherwise you wont have much room to cram all that air and fuel in the pistons ! For 300 true Bhp you need a gtb2565vk or larger...and aggressive porting with a good flowing exhaust system to let the engine breathe !
 

Markus L

Veteran Member
Joined
Feb 12, 2015
Location
Finland
TDI
Caddy (14D) 1.9TDI 2-stage 400+bhp, Passat 3BG 4motion AVF
IMO daily driver shouldn't smoke white at idle so I wouldn't decrease compression. Maybe consider changing rods if you are planning to drive hundres of thousands km:s with it.
 
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