Originally Posted by
MugenReplica
^ Stock a3 not reliable past 190whp? Are you serious? There are plenty of guys that put in 6-8 YEARS on Greddy turbo and JRSC kits at that level of power.....on very very very low boost (for reliability).
As far as NA (I kinda agree), 190whp is only limited by the timing chain issues associated with aggressive cams on our engines. More than 95% of the guys that ran Skunk2 Stage III cams on the K20a3 block (or Vtec killer heads on **A3** blocks), never actually (FULLY) upgraded their timing chain guides, tensioners, and the chain itself. Most of the issues on NA K20a3s stemmed from valve to piston contact (after chain breakage), not actually any issue with the rest of the rotating assembly itself.
*Not taking a dig on you, but the K20a3 isn't THAT bad....