I just got my GE sleeved JDM H23 block and was about to start putting it together. I'll be using crower H23 rods with JE 10:1 compression pistons and a built H22 head all ferrea valve parts. Do you think my car will run lean with the stock H22 ecu? Should I get an FPR just incase? I'd get bigger injectors, but I'll be boosting by next year... so I didn't want to get some 330 for now and upgrade to 550's later. What are your thoughts?

 

you should be fine with the stock H22a ECU. 330cc injectors would be good as well.

 

If you're going boost later, why such a high compression?

 

whenI tune it right more power outside of boost plus with Hondata I should hav eno problems with 10:1. I'll be NA for a good half year to a year or so.

 

when you said jdm h23a block, would that be the accord vtec block? if its the regular usdm h23a1 block, then the h22 ecu should put out more fuel then the h23a ecu does, get a set of 310cc injectors, i have some if you are looking for any.

 

No this is a JDM h23a vtec block from an Accord Sir. If there are more than enough fuel of the USDM H23 do you think it'll be the same for the JDM model?

 

wow, you are the first person ive heard of with that block. all i know is the h23a usdm uses i THINK either 240 or 270ccs and the h22 uses 290s. So i think if you went with a fmu, 310's and say the v-afc i think your fuel will be sufficient. I would recommend searching the internet and doing some more research on this engine just to be safe, but i wouldnt think the SiR engine would use any higher then a 290cc injector.

 

sure

 

I think I'm the first as well....I guess it kinda of sucks to be Christopher Columbus of the H23 vtec, but I guess if I get it working right I will be one of the rare H23 vtec's on the street. By the way the H23vtec block uses the H22A head. I've got some pics of the block if someone wants to host it for me.