so basically im in the process of a build right now a dohc zc that is. but guys at a local tunning shop sayed that zc sleeves cant handle more than 12 psi if thats the case then i might get it sleeved. so my question is, how much could the stock sleeves handle. by the way im using forged internal with a 9:1 ratio. balanced crank as well and hondata tuned. the list goes on but some thing wont matter

 

https://honda-tech.com/zerothread?id=1296712

like 15 posts down, different engine, same overall effect

 

what are your goals? that is the question?

 

setting goals is over rated it weakens other parts in the motor for example lets say ben wants to build a crx that has 200 whp. he comes on line and is told all he needs to do is run 9psi intercooled and a good engine management system. overtime of course the internals that were not made for boosting will give out and hell have wasted 1500 dollars on a project that didnt last too very long at all. im not saying eliminate the goal thing all in all, infact i use it my self. but evertime some one post somthing its always about goals what ever happened to build the **** out of your motor within it known limts and dyno the **** out of it with a good engine managment. no bullshit right now im in the proccess of building my dohc zc half is at the house with a 3angle valve jod port and polish. the other half is being honed,balanced and polished at a machine shop not to mention there putting in the forged pistons in. im getting brand new bearing rod and crank.and im gonna be using a crane cams ignition with a retard sensor thatll do its job. im switching over to obd1 ive got the ecu and the dizzy.im working on getting an 02 sensor. and i plan to control all of this with a hondata. honestly i dont know what numbers im gonna hit but im gonna hope for the best and maybe reach a goal that every one else didnt think i could acheive. trial and error can get very expensive i know thats why ive done **** loads of reserch and read even thousands of articles and forums all over the net about boosting. the point is boosting an engine to make it work harmonically is more like a food recipe the better ingredients u have the better the out come will be but youll never really know unless u try.

 

I agree to a certain degree, but part of your initial goal is $. Just because you have a goal, it doesn't mean its accomplishable. After the goal is set, then comes goal analysis. But anyways, people come and ask for advice, and thats what they get, advice (someones opinion). And at some point people get tired of giving the same advice over and over again and resort to telling people 'go search'. Certain issues are debatable as to whether they are nessesary, such as this topic. But the fact is they have been discussed multiple times and all the same issues will be brought up again. And in the end, its only the opinions of specific individuals. Does sleeving increase resistance to cracks and flexing? Yes Is it required to make x amount of power? maybe, but thats just an opinion. There is no specific hp number that if your stock engine exceeds it, your engine instantly explodes into billions of peices. So someone may have experience and put down 300hp on a stock engine for years, then people will say, 'stock engines can take 300 and be fine'. Then some other dude blows his stock engine making 175 hp and the word gets spread, 'oh no, you can't make anything more than 200 without sleeving and rods/pistons'. So why do people come for support? Why don't they just do it and live with the consequences? who knows