Hi guys, i want to get as much info as i can on a path to start saving for down the road. I plan on doing the labour myself mainly...

I was thinking of boring and stroking the A4, port n polish the head, upgraded TB, AEW cold intake to start...

It's auto, and i want to change it to manual with a better tranny.. i read on old posts that the F class tranny is better for the slightly bigger gears..? anyone elaborate? The only challenege i'm thinking of would be the wiring, would i need a new/modded/chipped ecu, custom harness?


I've changed plans like three times now and i would LOVE someone who knows the engine and has any tips for eventually making a kick *** N/A 02 accord SE sedan engine. i'd like to go turbo down the road without changing the internals.

Thanks for your time! -Subscribed!

 

im doing the auto manual swap myself. You only have 3 wires to connect in order for the swap to work. check the sticky in the accord FAQ page. do ur hw first tho!! im grabbing my parts tmrw, but im working with a friend who has done it before.

F tranny should be good for up to about 350hp...but for reliability, i would rebuild the tranny for any hp above that. Honestly, its the torque you should worry about.

H22 tranny for NA, f23 tranny for turbo, h23 tranny long gears and strong (good turbo tranny stock)

#1= Accords are heavy, plan accordingly..aka you need gobs of power.
#2= Unfortunately, you need to beef up the internals when you do boost. I even darton sleeved my f23. Do it right the first time, esp if you want reliability.
#3= Half the guys out there dont mention, they have to rebuild there motors every other year..esp the high hp turbo guys...plan your time and budget accordingly.
#4 go to Bisimoto (google it) He has the best NA parts for f23 ie cams rods blah blah

3angle valve job, port but no polish. stage 2 cam. upgrade fuel system. just get the dam rods! and high comp pistons. Eagle makes oem rods. ECU will need to be chipped at this point for tuning.

Im tryin to think of anything else u mite want to consider. lite flywheel.

being a builder, im gonna let you know now that the f23 serves best as a turbo motor. Unless you have a drag car that idles really high, the f23 wont perform well on the regular streets. It doesnt have very much airflow.

A turbo would allow you to move such a heavy car. In the end, when you build a reliable fast car, you spend lots of money. if its not the motor, its the tranny, or the suspension, or tires etc...

Invest in the project, and you wont be disappointed by part failure and uneeded expenses.

oh yeah, for NA you should buy an H22 motor. DOHC allow more CONTROL of airflow and present more power as NA engines.
Because of their short stroke, and relatively high compression stock, they arent good for boost until you get new pistons to bring the comp down. In anycase, there ya go

Cheers!

 

Just an FYI here. If your going from a kick *** N/A (Naturally Aspirated) engine to a turbo (Forced Induction) engine. It is going to require internals to be changed. If you want to go boost down the road don't bother wasting your money on building a kick *** n/a engine. Save your money and build for boost now.

In the end the H23 trans would be a good one to choose for a boosted application.

 

I recently have done auto to manual on my integra. And i was able to do it in 8 hours. Before you do it though make sure you got all the bolts/nuts and parts necessary, cuz this is very important. As for the wiring its a peace of cake.

 

Awesome sauce, this is gold! thanks so much you guys, i really appricate the info.

I like what i hear...

What about this?
Bore + sleeve the f23a4
Port (why no polish?)
I was gonna get a stage 2 clutch and lite flywheel,
Stroker kit for forced induction setup.
h23 tranny maunal swap
obv upgraded fuel sys, ecu etc.

Any decent turbo kit brands anyone can suggest that isn't the top of the line, i know you get what you pay for and i just would like a helping hand with turbo... i don't know how much boost this setup would be able to handle without too much stress on the engine.

Thanks again SO much you guys, such quick responses!

 

A stroker kit money down the toilet if you are going forced induction. You can do it, but that's not the greatest thing for a boosted motor. Plus you might as well save the money for other things.

You'll probably want a stronger clutch and if you are going with a lightweight flywheel don't go too light. You'll hate driving it on the street. Trust me.

First off, what power goals are you looking for? Because frankly some of the things you are listing might not even be necessary if you are looking for below 300whp (the resleeve for example is not necessary unless you are going over 400whp, or you are boring a lot out of those things). Also, I wouldn't bother looking at "kits". Piece it together yourself and save some cash.

Also, don't forget to add a chipped ECU or engine management system to the budget. A good tune is key to a great working setup.

Anyway, answer the goal question first and then we can help you.

 

ok my goal (in stages):

First I want to take the engine out, do the auto to manual trans swap, light flywheel, strong clutch, then put it back in. I don't mind pulling it out more than once, i figure it'd be good to familiarize my honda engine as i am a military mechanic apprentice.

Save for a rear disk conversion brake kit. Do that next i suppose..

Then I want to turbo it with mild boost for a quick accord, i find the stock f23a4 in my 02 accord sedan SE has sluggish acceleration.

I was then planning on saving for internals to beef up the block for more boost; cam, rods, pistons, rings, etc.

Eventually I want to do the whole car, paint, suspension, rims, body kit blah blah, i want to put money only in power related first.

When should I install performance headers/exhaust... once i turbo? or when installing standard trans?


ps. i'm aiming for around 400whp showcar eventually... maybe in a year or so around

 

Sounds like you got yourself a good game plan. Most people don't have a clue what they want, other than to go faster. As for your exhaust question, I would wait until you do your boost build. For 400+whp your goign to want a 3" exhaust and I'm not sure how well a stock F23A4 would run on a 3".

 

lol ok...

lets say my aim will be 250whp for now...

I don't need to do the internals that way...? i thought forged internals would be necessary for above 8or 9 psi... (for long life and i would love to do it myself)

Ya 3" piping is a little excessive but dirrrrty.


Also, i'm open for advice, pointers suggestions or anything that will help me do this in the right order.. btw i kinda want to stay within emission standards... when does this become a problem?

and finally:
does anyone know of good 6th gen accord related resources online? (ie; webstores, accord performance parts, DIY step by steps*)

*note: I have found many DIY on your sites but not many for my accord..
And i can't find a solid supplyer for 02 accord 4dr performance parts, but i'm guessing parts will fit from 98-02...? Any comment?
and not

Btw I am in the 6thgenaccord forums

 

Good goal to start with. The F23 is fairly stout and can hold 200-250whp pretty reliably with stock internals. You will want to go with rods, ARP studs, pistons, and other stuff when you want to go with more power but for now you may be ok. Keep in mind, its not psi that kills engines/parts, its power.

3" piping will be needed. On a stock F23, it'll sound like junk, but you'll want it when you go turbo.

Ewww... emissions...

What kind of laws do they have? Do they just do the sniffer test or do they also check your OBD system? If they check your systems... you can't go turbo. You have to keep your OBD-II system to pass, but you need an OBD-I conversion for tuning. This is the reason why I can't turbo my current Accord. Gotta find nice 94-95...

 

nah i def want to stay wil the f23a4 which is stock for the 02 accord, (OBD2b) i don't think they check the system, its just what's coming out the tail pipe.

MAN i don't want a stupid loud exhast tho lol I know there's silencers but can i get a nice deep, slightly quiet sound with the 3"?

Why would i need OBD-1 for turbo tuning, isn't there a way to set it up through the ECU or something like a seperate electronic dash mount tuner?



Edit:
What about other non-turbo related performance improvements? I/H/E (maybe get the 3" exhast ready for turboing?), plugs, port + polish? (i've been told don't bother to polish...?why?)

What do you think about upgrading all the little hp improvements first? would I notice much difference in driving?


Lol lots of questions... but this is my one goood source! Thanks mate!

 

Make sure you check on whether they check the system. You WILL have to convert to OBD-I for tuning (You can find plenty on the subject by searching here or google) and you definitely won't pass if they check it.

Silencers won't really help you. It will be bad unless you want to add resonators and add a quieter muffler like the turbo APEXi WSII. I don't know exactly how it will all sound, but that would probably be your best bet.

As for the "dash mount tuner", you might be thinking of a SAFC or VAFC. Do not bother with either of these. More likely you'll end up hurting your setup, especially if you don't know what you are doing. You can tune on these but it is VERY limited compared to other methods.

You can go I/H/E but I wouldn't bother with the others really (you can do plugs if you want, but don't expect a real gain out of it). You already won't feel that big of a difference with the bolt ons, and the other stuff will just cost you even more money.

Just save and go turbo. Don't worry about the exhaust until you get your whole setup. You'll just end up having to modify it again for the downpipe anyway.

 

IIRC AEM has a product that would allow him to stay OBD2 and tune his turbo without any problems. It's called the F/I C (Fuel/ignition Controller)

http://www.aemelectronics.com/engine...oller-f-ic-12/

 

That's sexy. ^^

I pick up what you're throwin' down, Bwill, and again i thank you and ghost accord.

Now for turbo kits, any suggesions on brand, or good site? (gots to get me an intercooler too :D )

 

LOL, who gave you that idea

 

I'll give you that one Ghost. I don't know much about it but it's definitely a bit more limited than a true stand alone.

Heard there were some issues with it but I'd definitely be interested to see how well it really works as I can't convert to OBD-I.

Hey, no need to be like that!

Perhaps you could elaborate? Would be informative for the rest of us novices on the subject at least.

 

I say no polish because in some instances it restrict airflow by grime getting stuck to the walls. kinda like static attraction. of course this mite only affect you if you are doing serious racing.

Im just used to building all the motors cuz i push them pretty hard.



Ill be checkin up on a thread for your build, good luck!

 

Well I found some information about how it works and some of it's limitations. Perhaps some of the information here is what you were referring to sony?

http://www.srtforums.com/forums/f87/...thread-428283/

I would still want to go with a real standalone, but that still seems like a viable option for people who just don't have the option of going OBD-I.

 

That's a great thread! Nice find!

I need a reliable (online?) source that can sell and ship me a H23 (std) tranny. LSD!

Also.. anyone know what i should do for the shift linkages, shifter, and manual bracket/mounts (possibly?) Junkyard search for a prelude?

(is it just bolt-on..?)

 

F/H trannys are interchangeable, they're bolt on to each other

 

with that said, you may purchase an H2B adapter plate and run a B-series tranny that will give you a lot better accelleration and plenty of gearing, final, diff combos to play with

heads up though, those adapter plates run around 500 bucks if you are very lucky

then finding axels to fit is up to you

 

ooo, dirty.

links?

*edit: i found the plate pretty easy, but i'm having a hard time locating the right tranny online. it's very hard to find JUST the tranny (and the one i need)and not the engine.

 

Would the stock tranny in the Honda S2000 2 6 Speed 6 Speed mesh in the f23a4...?

lol just for ***** and giggles...

http://www.asapmotors.com/used-trans...age=2&sort=20a

ref ^



Ps. Honda Prelude 2.3 5 Speed tranny 1992-1995 700$ i found here:

http://www.asapmotors.com/used-trans...l?page=2&sort=

You guys think that's the right one for me? (with turbo eventually)

And i read somewhere else that the H23a class engines have a different bell housing and won't bolt to the h22a or was it the f23... anyone know if this tranny (which according to wikipedia the 2.3's are all h23a*)

 

S2000 tranny wont work because that car is Rear Wheel Drive

what that H2B adapter plate you can run ANY integra transmission and some Civic/Delsol trannys, also some CRV trannys (they have a B20 and low gears)

the integra LS tranny is going to be quicker than the accord trannys, whereas a B16 del-sol or integra type R tranny will be zippy as **** but you'll be shifting more often and have a lower theoretical top speed