H23A1 First Step towards Turbo-ing

[ethvalenty]

Hey guys, I would like to know if anyone has an H23A1 non-VTEC turbo engine, and what they did to get it ready and where they got their turbo.

Thanks!!!

[prelude2perfect]

I don't think anyone here is running a turbo'd H23. Check out this guys build thread 4th Gen_ Neon's Engine Rebuild thread! - Preludepower.com

You can also find some more in here: Builds - Preludepower.com

And there is a bunch of good info on forced induction in here:

Forced Induction - Preludepower.com


Personally, I would slap an H22 head on that thing and then boost it.

[ethvalenty]

Hahaha...yeah...everyone likes the Japanese market engines huh. Well I like my American market H23A1 :) I'll do some looking around, thanks for the resources very much!!

[hatchbone]

sleeves then go from there

[dkwalker]

Hoop?

[ethvalenty]

Hoop?

What??

[slappynuts]

Does that motor have the aluminum sleeves? Any head will work fine with forced induction.Your best value per dollar may be to start with what you have and turbo it and see how far you can take the stock stuff (especially true if you have a really cheap to replace motor).

[prelude2perfect]

No it has the FRM sleeves just like the H22 unfortunately.

Adding the H22 head onto an H23 bottom end will give you a more capable eninge than the H22. You don't have to do this but if you are planning on going big then I would highly consider it.

I guess the first thing we should have asked is what are your goals? HP? Street or track? What is your budget like?

[ethvalenty]

I want to take it to the track eventually...and use it as my driver. Tacking it to the track will just be for fun. I would like to hit at least 300hp. Money isn't an issue..since I'm not worried about a timeline, but I would like to do as much as possible on my own.

[hanson12b]

if your going boost, do as hatchbone says and sleeve it, better to play safe than sorry.

[slappynuts]

if your going boost, do as hatchbone says and sleeve it, better to play safe than sorry.

Hatchbone has a tampon in for the first week of every month.:dump:

[hanson12b]

lol, but he also built a 611whp hatch, i would take his advice about boost lol.

[ethvalenty]

Any suggestions on brands or types of sleeves??

[hanson12b]

pm hatchbone, or give full blown a call.

im to broke to boost so i never really look into it.

[ethvalenty]

Awesome thank you very much...everyones been super helpful so far!! :D

[ethvalenty]

Sleeves after a headswap then?? And then fuel injectors??

[hanson12b]

i think you want to sleeve it and then the head, better of doing internals and then head work.

[prelude2perfect]

Have you read this yet? Turbo FAQ- Read Before Posting - MNHondas

The answers to your questions are out there already you just need to search and read. Do a lot of research before you even spend a penny or else you will probably waste money by buying the wrong shit or crappy products

[ethvalenty]

Looks like I'm gonna be doing some reading on h22 head swaps then hahaha :D I'm gettin pretty excited about my car though!!

[slappynuts]

Looks like I'm gonna be doing some reading on h22 head swaps then hahaha :D I'm gettin pretty excited about my car though!!

For what your trying to do I would just built the stock motor.

[hatchbone]

call fb talk to paul

[MonkeyGein]

dumb question.... what's the benefit of the h22 head on the h23? does itr really get that considerable amount of power for the work it takes? the h23 has like 20 less hp so would the head even bump it back up to the h22?

[ethvalenty]

The H23A1 puts out 160 hp, the H22 puts out 200 hp. H23 is 2.3L, H22 is 2.2L...an H23A1 with an H22 Vtec head will achieve more horespower than the H22
so yes...if I'm going to turbo it, the work is worth it. With a t4 turbo kit@8psi I will achieve slightly over 270whp

[hatchbone]

could do that with a 16g yo

[paulzy]

could do that with a 16g yo

and the current head ;)

[SlowEGG]

h23vtec is an h22 with more tq. If i could find an h23 block for cheap, i'd do it. Same shit as doing an ls/vtec but less work IIRC

[paulzy]

h23vtec is an h22 with more tq. If i could find an h23 block for cheap, i'd do it. Same shit as doing an ls/vtec but less work IIRC

I put an h22a head on my zc and it ran great. true story ;)

[Charlie Moua]

I put an h22a head on my zc and it ran great. true story ;)


hahah lol
I recall khangs car... back then I was like "wtf is a h23vtec".... that motor had some issues man.

It did sound pretty mean.... hehe

[ethvalenty]

Anyway...I'll have to wait on the swap and turbo for now because of money...so I'll see how far I can take the h23a1 n/a. Thanks again :D

[Vi3tboy]

Thought money wasn't an issue? :lolhit:

[paulzy]

hahah lol
I recall khangs car... back then I was like "wtf is a h23vtec".... that motor had some issues man.

It did sound pretty mean.... hehe

first h23vtec in MN ;) ;)

[ethvalenty]

Well I don't have a few grand just sitting around...I'm planning ahead haha. But for now I'm gonna do some bolt ons and a short shifter to start...a stock h23 is only fun for so long... :D

[Vi3tboy]

If you plan to boost don't waste money for bolt ons since money is an issue since you don't have it.

[ethvalenty]

I'd rather have some fun. Boost can wait a little bit.

[ethvalenty]

My thread is called "First steps toward turbo ing" not "imma turbo immediately" I'm just lookin for experience and suggestions, not budget help. :P hahaha :D

[nusdogg]

h23vtec is an h22 with more tq. If i could find an h23 block for cheap, i'd do it. Same shit as doing an ls/vtec but less work IIRC

x2! Instead I'm a bit lazy. Haha.

[Mattnes17]

I'd rather have some fun. Boost can wait a little bit.

Pointless... I tried the same thing on my first car.

Just slowly piece together the parts you need (because money is obviously an issue) for turbo and then when you have everything you need start work on the car. buying bolton parts now is just a waste of money.

[ethvalenty]

Your probably right. But I am gonna do exhaust and suspension before anything else. I bought the car with no muffler and a broken rear sway bar. The sway bar was replaced but it's still mufflerless :/ some eBay exhaust is what I'll have to do for now. Do you know where I should start?? My brother has a stock turbo from a 2003 wrx...is it possible to build around that for my lude??

[Mattnes17]

Start with the exhaust and suspension needs. Getting the car healthy is important before you turbo. What you should really start off with a big list of all the things that need to be done and all the parts that need to be purchased. This list will take some time and thought but it allways seems to help (a visual meter of sorts to see how far along you are and what else you have to do)

[AlexD]

doing a compression test if youre boosting on stock internals helps too

[ethvalenty]

Yes, compression is already on my list haha...my garage is ill-equipped unfortunately :(

[ethvalenty]

I've got a full socket set, a pair of Jack stands and an olllld hydraulic jack

[ethvalenty]

So...say I have a td04L...what would be next? What kind of turbo manifold?? Intercooler?? Tubes?? Lol :D

[slappynuts]

For 300whp I would run the stock motor. Anything more then that gets sketchy. I was looking at wikipedia and saw that some of these motors are closed deck. Anyone confirm this?

[Finetune]

You're gonna have to sleeve, no matter what. H22 is a big motor but doesn't mean that the cyclinder walls are thick. The walls are actually thinner then b series. Its a must to sleeve. I believe the h22a1 is closed deck. Correct me if i'm wrong, i'm researching as well. Open deck is h22a4's.

[ethvalenty]

h23a1 is closed as well. does anyone have a specific suggestions for sleeves?

[Mattnes17]

Call golden eagle and get a price estimate for your block sleeving and get ready to strip it and ship it!

[ethvalenty]

what about 87-90mm MID sleeves?

[Mattnes17]

Those are fine. Where are you having it sleeved?

[ethvalenty]

im not having it sleeved yet...this is my dd. the h23a1 is spec'd to withstand a turbo application with no other modifications to the engine.

[Mattnes17]

im not having it sleeved yet...this is my dd. the h23a1 is spec'd to withstand a turbo application with no other modifications to the engine.

Not worth the risk. You would only be able to run really low boost.I wouldnt feel safe bosting at all on my H23a1 ( because it has stock sleeves...)

[ethvalenty]

alight. well, so far...for my turbo build...i have the turbo and thats it hahaha...a TD04l. Ill be slowly piecing it together as i was advised earlier in the post, makes better sense than doin a couple boltons.

[ethvalenty]

how low is low?? I know for a fact the h23a1 can handle 8psi no problems. and as far as im concerned...8psi is a whole lot better than 0psi ;) hahahahaha :D

[Mattnes17]

I probably wouldn't boost over 7 psi even on the dangerous side. You CAN boost higher, but will your engine last? Its hard to say...

[SmoreKusBore]

how low is low?? I know for a fact the h23a1 can handle 8psi no problems. and as far as im concerned...8psi is a whole lot better than 0psi ;) hahahahaha :D

I probably wouldn't boost over 7 psi even on the dangerous side. You CAN boost higher, but will your engine last? Its hard to say...

8 psi means nothing... you could be talking about a completely different turbo. 8 psi on a small turbo does not make any where near the same horsepower with 8 psi on a big turbo... its whatever horsepower your motor is able to handle. and however many pounds it takes to get to that horsepower is what it takes then.

[hatchbone]

For 300whp I would run the stock motor. Anything more then that gets sketchy. I was looking at wikipedia and saw that some of these motors are closed deck. Anyone confirm this?mine is :ninja:

[evz132]

my cousin was able to put 18 psi on with stock internals....then it blew up lol but it made 485 hp lol

[ludedude]

The first step to turboing your car is to make sure you have another car to drive when your turbo motor blows up lol.

[SlowEGG]

Td04? :lolhit:

[ethvalenty]

TD04L, used in mitsus and subies, some volvo 7s