I got this H23 IM that's gonna go on my f22a1. Originally I intended to just remove the IAB's but ended up tearing out the whole thing so its like this. These are actual photos,









What I'd like to know is if this will even be worth it now with the upgrades i have already since I heard if you make it too big it won't get enough velocity and make it slower. What I have now is I/E/H, a P12 ecu, and no cat. The TB is an H22 62 mm. Someone told me to do this to make it less restrictive, it was GhostAccord. Now i'm having second thoughts about putting it on at all.

What do you think, will it equal more hp and tq?

 

Trial and Error.

Throw it on and see how she drives. Hopefully, you get a tune.

 

A tune is expensive right? I don't even have a tunable Ecu either.
What's a good price to pay for an ECU with a tune?

I am a little concerned abotu this because I heard people saying that putting a S2 IM on a stock motor makes it slower. This is similar to S2 is it not? The runners may be longer and thinner, so also is the TB smaller.

 

I don't remember telling you to use a 62mm TB with a completely gutted H23 IM on a stock F22. I might have said to use an OEM 60mm H TB with a stock H23/or A6 IM with a port match.

Do you have a local tuner in mind for tuning your car?

From what I have read previously. I am gathering that tuning this yourself will be out of your budget. Better to pay someone who knows what they are doing in order to save money.

 

I take that back, you didn't expressly tell me to do this, you just showed me how to make less turbulence. You said, "open up the runners so there will be less turbulence" and showed a pic of it. Anyways, its done already, I just put the gaskets on with rtv and bolted it all down. Gonna be putting it on tomorrow as I am replacing the rear mount.

I'm using an H22 TB which is 62mm.

The only place near me that has a dyno and can tune is closed down. So you mean they will provide me with an ECU at the tuner shop? It is an auto. What should I expect to pay for them to tune it? I heard its tricky to tune an auto though.

Seems more cost effective if I can tune it myself, why did you recommend someone else do it for me? If I did it myself all I would need is the ECU and tuning software, right?

 

I never said to gut the intake manifold for less turbulence. I am pretty sure that I said to smooth out the ports with an 80 grit cartridge roll.... To be honest it is getting very hard to remember what we have talked about. You have so many threads.......

OK so you are using a stock H22 throttle body. The throttle plate should be 60mm. IIRC the JDM Type S is 62mm @ the plate.

I am not sure how the tuners work in your area. The ones that I have dealt with have full service shops... they can provide you with everything you need to have a tuned car. From the chipped ECU to race fuel... I strongly suggest that you talk to them. Ask them if they can tune an auto and how much it would be from scratch!.....

If you want to tune yourself you are going to have to do quite a bit of reading.... This is where doing it via trial and error can get costly on engine repairs/replacements for a new comer! The more you know about basic fuel injection, electronic ignitions and internal combustion engines before you get to tuning. The better prepared you would be to spot issues and fix them. Before they become catastrophic.

 

He doesn't want to install a chipped ECU because its an automatic....

 

You said in a previous post on cb7,




What cam do you recommend, delta or bisi? And what stage, 1 or 2? I heard state 2 is more worth it over stage 1, but I hear you have to upgrade the valve train for that. This will be my DD and I don't want to blow it up or anything. I wonder if its hard to replace springs with the head on the block. If I can't do that then its stage 1 cam with no springs or head work.

Upping the compression is out of the picture right now, I have 0.50mm OS pistons and rings and that was from a recent rebuild. Don't wanna have to mess with it any more for a good while, the head or the block. Thinking back I probably shoulda used forged internals and upped teh compression then, but hey it was my first rebuild and didn't want to risk it.

 

Just installed the IM. It made a very noticeable difference in mid to high rpm's but lacked a little down low. In the end it the 0-60 time was about the same.

Made my car way quieter lol. All in all it was a fun swap, got to replace the rear engine mount at the same time. I say it was worth it.

This is after the swap. Its on 87 octane though, last time was 93.

http://www.youtube.com/watch?v=bn4kZ...ature=youtu.be



What can I do to get the best from this upgrade? I'm thinking maybe upgrade the downpipe to 2.25 as its about 2" right now. Put a cam in it maybe.

 

Why were you running on 93 octane? Also as far as side by side videos goes, the older one was faster by a hair from what I've seen. (over and over and over)

 

MORE POWERERERERERERER!!!!

No but I think its better. I heard you get better gas mileage and power so its a win win situation.

 

No you will not get better mileage or power, we've gone over this many times in the 'car world'

 

I read that just now but where's the proof? I want dyno sheets... NOW.

 

I am a little concerned abotu this because I heard people saying that putting a S2 IM on a stock motor makes it slower

 

It may or may not reduce performance, it depends. In my case it lost low end power but was faster mid to high end. In the end 0-60 was the same.

Its not all that worth it unless you have other things done. Seeing how expensive S2 IM's are, I would't have it done unless you have the cams or tune or turbo that requires it.

In my case its more like like a pre-performance upgrade that expands the potential for more power. Plus my car is quieter so I won't get ambushed by cops as much lol.

This was before I installed the H23 IM,




This was after,

http://www.youtube.com/watch?v=bn4kZ...ature=youtu.be


Its about the same, 9 seconds.

 

The proof is that 93 octane is more resistant to knock in which your engine cannot take advantage off or use effectively.
Fuel choice is per application. There is no advantage to switching octanes if it is not needed.

 

I tried running 93 octane for a while and I could tell no difference. My thought at the time was that the ECU would advance the timing and I might get a little more power and mileage. Didn't work. Just costs more money. If you have more top end power, and less low end power, then gear it lower.

 

Seriously.... where do you keep "hearing" these things? The facts on this topic are readily available.


Internal Combustion Engine - http://auto.howstuffworks.com/engine1.htm

Octane - http://auto.howstuffworks.com/fuel-e...question90.htm

Horse Power - http://auto.howstuffworks.com/horsepower.htm

There are more in depth articles out there. These were the ones that I happened to find in a very short time frame.

 

Hey,
Could you take some good pictures with the steps for the rear mount install? All of the DIY pictures are either gone or not so clear.
Thanks.

 

I don't know who told you that,but I've seen plenty of setup with just I/H/E making power over the stock IM setup.

 

This IM im running is indeed too large of volume. Do you know how I can really tell? As I am starting the engine hesitates as though its not getting enough air for a second - the velocity isn't enough for the power my engine puts out.

I have good news though. There is another H23 IM at the junk yard right now for $25. All I will do with that is remove the butterflies and jb weld it like I was going to do from the start.

As it is now this setup will only be good for turbo or high compression n/a. It was fun experimenting with it though!

You guys were right, velocity DOES matter. Sorry I doubted you. You just got to realize that everything I say comes from a beginners standpoint, I don't realize just how much you really know about this stuff, I judge you as I judge myself - as a beginner.

 

I picked up another H23 manifold for $25 at the JY. I removed the b-flies since I already have the P12 ecu.

Here are some pics. I took them with a macro lens so it looks really detailed. Hope you like them. They do look great,

A little porting with the rotary tool,













That should give me the velocity i'm looking for. I know the butterflies may be the "right way" to do this but I couldn't find the black box for the IAB's.