<font face="Verdana, Arial" size="2">Originally posted by BlueShadow:
just out of curiousity how much detonation could a fully built h22 take? and how much psi can it take? im guessing a lot but whats the number 20psi-30?
and now that we're on the subject of building motors what are all the steps?
( know of some but not all) and what about the head does it need any kind of build-up?(valves springs and retainers?)
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How much detonation can a built H22 take? I don't think anyone has any idea. Detonation can destroy an engine, regardless of how it's built up. That's something you want to stay away from at all costs.
As far as turbo boost, it depends on your budget. You will have to get some seriously strong rods (Carillo or Cunningham custom rods) to handle really high boost. Keep in mind that those rods run about $400 to $500 EACH. The pistons will also need to be made to handle it, the block will have to be pinned, you will need strong head bolts, and other misc. hardware. 90% of the stuff will have to be custom made.
If you want to know about engine building buy a book on bluepriting V8s. The engine is different, but the process is just about the same. Inspect everything, check clearances, balance everything, recheck clearances, etc.
As for stuff specific to the H22, this is what I would do for FI:
block:
new pistons
new rods
oil pump modifications
water pump modifications
have crank inspected (check for runout, etc)
remove balance shafts
balance rotating and reciprocating assembly
head:
headwork
cams
valve springs
ti retainers
intake manifold:
port
block EGR
injectors
fuel rail
adjustable fuel pressure regulator
throttle body
other stuff:
exhaust (custom 3")
custom manifold
fuel computer
clutch
flywheel
LSD
Probably missed a few things, but you get the idea.
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Billy
North Texas Prelude Owners Group
www.ntpog.org
