Originally Posted by ludeboom
yes the h22a4 is the worst block for high HP turbo
mainly cause of the open deck
get a h22a/1 and sleeve it, add forged rods + pistons and ur done with the block
cam gears for the head, to dial out overlap...
some bigger injectors, the turbo of course, a tial wastegate...
etc
and the electronics
about $4000 from now you will be making good power
~boom
i disagree that the h22a4 is the worst block for high HP turbo setup....
yes they are open deck but all you need to do is get the re-sleeved and end of story....
The 93-95 h22a1's have small crank journals than the 96+ blocks..i for one would rather have a 96+ block.......
check out the September 2003 HCI (hot compact imports) mag they have an h22a4 that is booted and has 725 WHP with the bottle...i think without the bottle they had 550 WHP..