I want b00st

[Andy]

So my prelude hasn't been running for two months now. In all this time, I done some thinking, and have decided to boost what is an already unreliable car from hell. Long story short, what have you guys heard about boost for H22A, especially good turbo kits. I don't want huge numbers, 230-250 whp is my goal. Explanation of different turbos would be great too. I've maximum boost but it deals with theories and not my specific app. Anyways, please discuss.

[PDenbigh]

Put a T56 on it and hang on. Don't get a boost controller either, just open up the tube. You'll get your 250whp for about 5 seconds, and it'll be the fastest 5 seconds you've ever experienced in that car!

Ok, you're asking a lot. Do a little googling first, I am SURE there are folks that have boosted your engine. Also, if you car hasn't been running, and you call it unreliable now, are you SURE you want to turbo it? A turbo never increases the reliability...

[.RJ]

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[KPWSerpiente]

I already told this motherfucker to do nitrous instead...cheaper, easier install, easier to tune, same great power.

But he won't listen.

Slowboy's kit + an intercooler and vafc and the drag kit are my two choices.

Same price range, but one features a larger t3/t4 whereas the slowboy kit carries a t28 which will spool faster and still support the power you want.

I'd give Mike a call up at slowboy and get his opinion, he is a great guy who will talk with you about it whether you buy his shit or not. That drag kit is proven but I don't know if want such a large turbo on stock honda internals.

-T

[WRXtranceformed]

Step 1: Sell the Queylude

Step 2: Buy a WRX, or better yet an STi

Step 3: Downpipe + engine management
Step3a: Or if you don't give a shit about your engine, get a MBC

Step 4: You'll have all the boost you can handle

[ScottyB]

i thought H22 cylinder liners were FRM and didn't like boost?

[Mike]

this is a stupid idea.

[JackoliciousLegs]

Step 2: Buy a WRX, or better yet an STi

HELL YES! I'm about about it except for one thing.. Anybody got a spare 15Gs layin around?
Oh wait, that's the cheapest one on there. How about an average of 22Gs...???

[WRXtranceformed]

I think Subaru is still doing their 1.9% financing on a loan through Chase Automotive. That's definitely good as far as loans go =p

Debt ! It's what makes the world go round.

[KPWSerpiente]

Step 1: Sell the Queylude

Step 2: Buy a WRX, or better yet an STi

Step 3: Downpipe + engine management
Step3a: Or if you don't give a shit about your engine, get a MBC

Step 4: You'll have all the boost you can handle

Really?? Cause some of us can handle more than 240 wheel horsepower...

There are kits out there Andy, just select the right one.

-T

[Andy]

This is not something I'm rushing into. I've researched it. I don't need encouragement or discouragement, just info. No info = no post.
FRM liners don't like forged internals, but I have coated JE Cast pistons, with bigger ring lands which are the big problems on h series motors. Guys have run 6-8 lbs on stock motors and haven't had reliability issues. My pistons still can't b00st past 10 psi but more reliable. The unreliability in this car stems from previous owner, so the turbo won't affect the motor that i got after him. Low boost on h22a yields mid 200 whps on most applications. But never the less, more info. Thanks.

Travis, talk to slow boy for me, I definitely want the port work done. I expect to start on this turbo after finals. Ask Mike if he's willing to subsitute the FMU for a V=AFC II. I'm going to call Inline to see if they have any p72's laying around.

[WRXtranceformed]

Step 1: Sell the Queylude

Step 2: Buy a WRX, or better yet an STi

Step 3: Downpipe + engine management
Step3a: Or if you don't give a shit about your engine, get a MBC

Step 4: You'll have all the boost you can handle

Really?? Cause some of us can handle more than 240 wheel horsepower...

There are kits out there Andy, just select the right one.

-T

I'm not trying to be a dick or an elitist or anything, but I've seen an STi with a downpipe and engine management beat an SRT-10 Viper on the drag strip 2 runs out of 4. Horsepower doesn't mean dick if you can't get the traction to turn it into speed.

Maybe it's just me, but I think it's impressive that a well-tuned AWD 4 cylinder car can smoke a muscle car with more than twice the displacement and cylinders~

[Mike]

i will post if i want thank you very much i still think it is a stupid idea.

[Dave]

i think its a great idea, but most people don't like my advice b/c it usually sounds insane (albeit fun if it works out). Find out what turbo will fit your particular desires. Do you want big HP with lots of lag? Do you want immediate spool but limitations on how far you can push it? Where do you intend for this car to go in the future? Once you decide on this kind of stuff, your selection of parts should become fairly straightforward. If you want help installing, I'd be happy to. As for particulars, I'm not really a Honda expert so any info I can provide would probably end up being worthless. Best bet would be to search prelude and honda forums to find out who has done this and what kind of problems they have encountered.

[CaptainHenreh]

Some of the H22/H23's were closed deck. Others were not. All <3 generations ago) Accord F22's were closed deck (and can, in fact, use a DSM manifold).

I want to say if you have a pre-1997 H22, that it's closed deck and that the 97+ h22's were open deck.

Still, turbocharging an H22 is an iffy proposition, considering the thin cyl. walls.

My advice would be to get a spare engine, rebuild and turbocharge THAT, then drop it in. Turbocharging a car is a long, drawn out, and deliberate process. No half-assing allowed. It's completely doable, but turbocharging a dying engine? Well, shit, it'll be turbocharged for about 15 minutes.

As much as I like boost, bad idea. Expensive too. I had all kinds of plans drawn up to turbocharge the 240, I had thought of everything. And I went and got a factory turbo car instead.

[.RJ]

92-96 H22's were open deck

[CaptainHenreh]

some of them were closed deck. which ones?

[Andy]

93-96 h22a1 usdm closed deck
97-01 h22a4 usdm open deck
93-01 h22a jdm closed deck

the cylinder walls aren't the problem in relation to boost. They just aren't compatible with forged pistons which is good for boost. The stock pistons ring lands is what makes them unable to take 10+ lbs as well as the my JDM h22a's 10.6 comp. When I built my motor this past spring, i anticipated most of this, and got JE piston with larger ring lands, and the head work dropped comp down to a hair below 9.9 according to the machine shopped who cc'ed the head. I want quick spool/ low boost mid 200's whp. I've seen drag kits/as well as fmax's kit on some preludes. I'm not comfortable with their fuel management setup as well as their exorbinate prices. I don't want a fmic, a smic is fine. I'm using hondata with a p72. i'm liking the garrett t28's. I have to research their compressor maps some more though. I want to buy a beginner's kit and put the rest together myself i.e. a kit with the manifold, turbo, piping and couplings, wastegate and blowoff. anything else that's absolutely crucial? I can get a walbro for cheap, and engine management is covered. Turbo guys, tell me what else I need and where i can get these "beginner" kits, something like Slow Boy is cool.

In regards to Mike, hey it's cool that you post whatever you want, but all I'm saying is that it's not productive. If you think its a bad idea, tell me why. I'm open to suggestions, that's why I posted.

I would love an STI but i have three grand, not 30 grand. You're right, traction is a huge issue but i don't want huge numbers. My LSD compensates well for 190 whp, so hopefully another 30-50 whp wouldn't be too much.

[Mike]

why is it a bad idea?
- taking an unreliable car and slapping a turbo on it is never a good idea
- the h22 makes plenty of power naturally aspirated
- h22s are getting fairly rare, replacing a block that had a rod shot threw it isn't as easy as it is for us b-series motor guys
- i'm assuming you don't have all that much disposable income as a college student, your money is spent better in other facets of life, turbos open a whole can of worms
- lots of power + fwd = lame, just ask travis

[.RJ]

h22 w/ oem bottom end = 230+ at the wheels