compression ratio's on h22a

[Phunyguy]

What would be the max recommended compression ratio for a N/A H22A with 1mm oversize valves, stock bore / stroke, port / polished head, billet titanium rods, on premium pump gas? (sleeper) - engine is gonna look completely stock under the hood but no-one will know it's a built motor. I'm also not looking for super horsepower numbers... just whatever i can get with that setup. maybe i'll even throw a fuel cell in the trunk with a discrete bottle of the good stuff for an unsuspecting old guy in a vette or something. I've got 10 grand for N/A engine build. Anyone got any ideas for different bore and stroke? maybe stroked to a 2.4-2.5? i'm open for thoughts. (intelligent thoughts)

[civickiller]

i would bore it alittle but you cant really bore the stock sleeves, if you want a bigger bore you gotta sleeve the block. for ex. on a b series with the stock 81mm it is only recommend to bore the stock sleeves to 81.5 but if you sleeve the block you can go to like 86mm or i recommend 84mm for a street car. but yeah this is for a b series, but you get the idea.

then you could stroke it then that will give you more tq and hp.

for cr i would go somewhere around 11.5 or 12 but with that i would recommend like hondata or uberdata or aem, or some kind of maangement to run the upgraded motor that a stock ecu wont beable to handle.

[Phunyguy]

oh yeah, i meant to include sleeves in all that. I've heard mixed things though, and i know it takes cash to squeeze out N/A horsepower numbers. i know that the H22 is a big 4 - do you lose reliability as a daily driver with a bored/stroked H22?

[civickiller]

if you stroke it then you dont really lose reliability but if you bore it too much then it gets beyond streetable.

[Phunyguy]

hmmm - i think it's time to start some math then. preludes have an 87mm bore, right? maybe opening it to 88-89 might do it justice without overboring. besides the machining work, can i do most of the build myself? What about rotating assembly balancing? can i have it balanced then taken back apart and put it together in my garage on an engine stand?i think it will save me a butt-ton of cash, instead of having a motor built somewhere else.