Pushing 13's from a H23 SI

I have a (JDM) H23 si engine and sofar I have a Injen CAI, Apexi downpipe, Apexi Cat-back, Full MSD ignitions system, Iridium Plugs, Tein complete suspension system, Neuspeed Front tower, a Spoon rear tower and a VIS OEM CF Hood. What more do i have to do and how much would i have to spend to make my car hit in the 13's by summer. Keep in mind I havent track ran the Prelude since i got it (i have owned the Prelude for 2 yrs). the Mods i listed have been done within the last month and My JDM h23 has about 53,000 miles on it and I owned it for 1 yr now with regular Royal Purple Oil changes every 2300 miles to help keep the engine in prestine condition. Also please dont tell me to go get a H22 swap b/c I want to be like some of the other fellow Non-Vtec owners out there; DIFFRENT.
Thanks for the help......

The easy way would be supercharger. But you probably don't want to kill your engine. A header is good if you dont ever plan on a turbo. The h23a is a little better for a turbo/super charger.

I don't know how an h23a can go too far without FI though.

"h234thgenlude" u remind me of myself i wanna build my h23 to be "Different" haha the biggest b/s i used to say....test drive a h22 vtec and rev to 6...and u'll quick change ur mind on selling ur h23 and getting the h22 hahaha..u don't even have to test drive it...just have it park and on "N" and step on the gas to u rev it to around 6 and u feel a different "feel" from the gas pedal that my friend is called "VTEC"....but the h23 is O.K. i used to love my 92 Lude wonder how is getting treated now...

Hi there I just read your post and I have a H23 si turbo running around 400hp.. that will get me to run 12 seconds maybe under with drag slicks. If you are really wanting to get your car into 13's you will have to boost... unless maybe you put an H22 head on your h23 block witch is Ideal for the best setup!! i will be putting an h22 head on my block in the future then i will get an easy 500 hp to the wheels with some cam upgrades a port and polish intake manifold and so on .. there are no superchargers made for the si .. if you switched to the h22 head witch is a great idea for all motor... but whats the fun in that =).. You are getting yourself in a huge project that could take several months of downtime no matter how you look at it. you are going to need more stuff than you have ever imagined to make this work the right way and avoid problems. You could play it safe and go with a small boosting turbo setup with like 9psi this way you dont have to spend crazy money on pistons rods block sleeving ext.If you have the money then i suggest you do all this its the only way to boost 20psi with no problems. here are some things you will want to get if you do this the right way. Hondata EMS 3 bar with boost around $700 you must have this in order to have your car tuned right and not blow your engine. get your block sleeved by Golden Eagle Man. in cali... the do the best sleeve job of anyone. that cost me about 1,200 + for it to be matched to your pistons and bore and hone.sleeving of the block is a must if you plan to boost high because you have to buy forged pistons and rods. I went with all top of the line crower and endyn pistons. they will run your a pretty penny about $700 for rods and 500 for pistons. make sure your crank is in great shape or you will have to buy one from honda for $800.Then you have your block ready for BOOST! up to 20psi.. you also will need all your custom turbo parts dont buy any kit they are a waste and you will not get the power you want. When you have your engine rebuilt you will need all honda oem parts gaskets dis cap. water pump timing belt motor mounts Motor mount insterts.. and im sure parts i have not talked about.you will need to upgrade your whole fuel system I suggest an aromotive fuel pressure regulator RC injectors 720cc AEM fule rail walbro 255lb fule pump. Also the one thing you will need to upgrade in the head would be your valve springs and retainers this way you can go abouve your red line because with boost it will need it. There are many other parts you will need like a great cluch stage 3 cluch masters lighten flywheel and A MUST IS A Quaife Limited slip diff. thats $900 alone. Like i said its a huge project and is not cheep ive invested over $20,000 and im not even done.when it comes time for the H22 head thats awhole other story. Now that is the Boosted way witch is the best way by far and the most fun to drive hands down. The other way you can go is to Not boost and go all motor if so you will want to still get the block done otherwise you cant put in forged pistons upgrade your compression ratio to at least 11 to 1 as well as if you go the boosted route you must lower your compression to like 9:2:1 this way you can boost higher. Im not sure of the power you would get this way but you can do this ..... Get an H22 head fully build it cams cam gears header intake manifold port and polish bored TB Fuel system Hondata clutch STILL GET THE QUAIFE LSD Raise your compression ratio with differant pistons get rods as well all forged so you can boost in the future if you want but remeber if you have high compression pistons you can boost as high you will boost like 7 psi.. in the future you can buy diff pistons and lower the compression and boost 20 psi and then you have one mean machine prob close to 500 hp. you could also use Nos instead and keep the high compression but everything must be forged and use hondata to tune it right. I have had nos before and nothing but bad times... plus you have to fill the bottle witch ends up costing you what you could have had a turbo witch is power always there. Its somthing to think about and you best have the $$$$$ or you could find your self with many problems. Just for the record a fully built H22 Head and A fully build H23 bottom end boosting 20-25 Psi is better than any engine out there if its built and tuned the right way. The only engine that i would say could be better are the SR20 nissan motors. So good luck and dont let people tell you that because your car isnt Vtec that it is crap they just dont know what they are talking about. Mine is none Vtec .. but will be vtec soon because it is better and they make more parts for that head but you can get 450 hp out of a non vtec si if done right... witch is more than enough power to take a stock viper or Zo6
I hope this helped if you have an further questions just let me know and i will try to help...

thanks alot. wow so much knowledge. to bad you dont live in PA b/c youd be my mentor. i was to go low compression , boost, so ill follow your words of advice. also i am going to do the h23/ 22. can i use je 8:0:1 pistons or should i just youse the ones you were talking about?
again THANKS

another thing listen to this statement from a guy who wants to sell me this block and tell me if you think i should buy it. im asking you b/c the compressions high but he says itll handle mega boost ****************what he wrote me~~~~~~>
Description
i am selling a h23 vtec block that has been sleeved by bensons perfromance machine in Santa Ana CA. the block has been hot tanked so its pretty much clean enough to eat off of. the crank has been balanced and polished. the bearings are the best you can buy and the clearences are set at Bensons specifications on the rod bearings and the main bearings. the rods have been shot peened, stress tested and pin fited to the je pistons which the compression is 11:5-1. i also installed the h22 vtec oil squirters for more reliability, which the h23 vtec didn't come with. this block is practially bullet proof it can hold 35 pounds of boost. i have been told that it will make 350 to the wheels built all motor, i have invested over 3500 on this block alone. it is a closed deck, and all componments have been installed by an ase sertified mechanic. i will include everything that i bought the block with.

HUmmmm... Well if you already have a block I would use yours if your crank is in Great shape... personaly from all the research ive done I would use nothing but Golden Eagle Sleeves. sounds like he did the block right .. bullet proof im sure .. but with that High compression From what ive been told is you just cant boost that high with high compression im told you can boost over 9 psi safely... I could be wrong but i doubt it.35 is Total BS ... now If the compression of the pistons was lets say 9:2:1 then Yes you could boost like that ... but you dont want to boost 35 psi ... 20 is what you want to shoot for otherwise you are getting into MAJOR money$$$$$ big time you will have to replace so manythings tranny problems even if you use the LSD your axles and much much more ... you will have things breaking every time you run the car and you really dont want that unless you only plan to drag it. Yes the block is done right ... but to boost hight you lower the compression... the endyn pistons I have are rated just as good or better than JE and when you go to order them in the 2.3 block JE pistons or SRP will not work with the crower rods thats why i went with the endyn... I hope this helped you some let me know if you need more info! Peace out!

well cool then. that saved me 1500 right there. i guess ill just slowly build up mine. see the only thing is this is the only car i have so its my daily driver and i dont really want to go out and buy a new bottom and top end and re do it that way b/c thats alot more money. eh i guess i could atleast start buying all the parts you mentioned and go from there . o do you think since i prolly shouldnt go with that block that i should buy this one vtec head complete (port polished) let me know. its $400. basically its just port n polished. all the iunternals i believe are stock. again thanks for all your knowledge and help

That is a good deal for a polished h22 head HEHE IM lookin for one myself... not now but that would be ideal. if you are going to boost then you only need to build up the bottom end on the H23 and titaintim vavle springs and retainters.... for your h23 head so it will handle the high revs ..But yea you are right my car was a daily driver and It was in the shop for over 9 FrRizunkin months. there for i couldnt work and so forth... Doin a build like this you must know that there will be many things popping up that you will need to buy and it gets costly just like new oem parts and so on... lots of honda stuff bearings and more.. ive been doin my project for years now so just make sure you have a guy who really knows what hes doin when it comes to engine building and he has to be a pro at tuning hondata on the dyno. like i said each part you buy you are going to have to research the in's and outs or you could really get into some problems later on like certain parts working together.... the one thing I would do if you insist on getting the H22 head for it is getting that head fully build it up I hope the people you buy your stuff from know what they are talking about then when you get that head done save up your bottom end parts and have it all put together .... then break in your new engine and save up for your turbo stuff collect all that and 3-4 months later slap the turbo in there and you should be ready to go... im not sure where you live but if your in cali im sure there wouldnt be a problem finding a good place to work on your car I know Golden eagle who sleeves the blocks also does engine builds so you could prob send your whole engine there when its ready to be put together but who knows what kind of shipping cost you would be getting into. All i have to say is talk to the right people who know what parts work together tell them what kind of hp you want to make and find someone who knows everyting about hondas or has worked on turbo charging and hondata tuning a honda before. good luck This is a huge project =)