732xghost

love this thread. alot of useful info. makes me almost miss my F22B1.

Slo-mo

agreed. but it makes me want to pick up a F22 to build

AFAccord

Makes me eager to get my new car so I can rebuild my F23.

BlkChryKord

5 month bump?

AFAccord

Bump for more results...

hotaccord243

Looking to get a re-tune that's much more aggressive come spring time....
Hopefully push some really nice numbers....

Also gotta get new tires so i can take it to the track come spring too....

Good info in this thread, and congrats to everyone pushing some great numbers NA/Nitrous/Turbo and all!

NASOHC

Ok Jason,

Looking to update here and bump this thread.

Results from new build:

Wiseco Custom Pistons (-5cc) est. 10.69:1 Compression w/stock head, basic Pnp Headwork (gasket match), Bisi Spring kit, No balance shafts, on 91 pump octane - everything else was left the same as last dyno; bolt-ons and same WebCamshaft.

All components used are original from motor. Running A/C, P/S.

Thanks Bisi again for the fine tune!!! 171wtq/174whp F23A1 VTEC N/A

AFAccord

Updated first page Ken!

I might have to go make another dyno run with the exhaust cutout and cool weather just to put a little more distance between you and I.

Andryzzle

AFAccord: i'm interested in your cam mod. do you have a thread about it? any videos of the cammed sound?

I'm thinking about doing this to smooth out my partial throttle map a bit. The crossover is a little rough.

NASOHC

Yeah, then maybe I can swap in a custom F23 intake w/ITB's and 2.5" exhaust finally to make 200whp - i know, still dreaming!

Don't temp me man.

AFAccord

Obviously the audio is not quite all there since I was just using my iPhone, then Youtube compression takes even more away, but you get the idea...

http://www.youtube.com/watch?v=9bNLQptMTdA

Atreidies

That is the third Bisi dyno chart I've seen that has a schizophrenic torque curve. What is the deal with that?

This is a great thread. Linking the build threads would be a great idea for the first post.

AFAccord

The charts you see from Bisi aren't making wacky torque curves, it only looks that way because of the scaling. Ken's torque plot goes from 119 to 171, while the hp plot is 0 to 180.

If anything, the dotted line (previous setup) has a bit of a dip in it, but I believe that was because they set VTEC engagement so high. It's much smoother on his new build, since they lowered it some. On that note Ken, why don't you ask Bisi to lower it a bit more and add a little timing the next time you're on the dyno? I can almost guarantee that you will eliminate that slight dip and probably pick up a few hp in that midrange.

Atreidies

I understand the scaling, I'm talking about 3 different hiccups throughout the graph. The worst being almost 1,000 rpm's long, resulting in a 7 ft/lb loss right at the apex. You can't tell me that's from vtec kicking in.

Maybe it's just me, but I would be concerned about a 4% loss where my VE should be the highest.

Andryzzle

thanks for the video, that does sound pretty sinister.

carry on with the f23s here

NASOHC

On the first tune, VTEC was set at 4100rpm and it kicked in after that dramatic drop - on this last tune, we lowered it to about 3400rpms and got rid of that original dip. I've seen many other graphs and that final dip is common on F23's - like AFAccord said, it's not that bad - under full throttle shifting, the engine never drops below 4000-4500rpm's which is where it on it highest tq curve and still making hp - it would be great to see that tq curve extend for a longer rpm range but we were braking in a new motor and also setting it up for conservative daily driving. I think I'll be tuning again before summer after a few changes to help smooth out that curve - regardless, I was pleased with results considering the stock components still being ran: (ex. Fuel, pump, Injectors, intake and 2.25 exhaust) - and yes, Bisi's charts are tightly condensed so they look more dramatic than others.

Thank you for the comments!

Gold DA9

almost forgot about this thread. I want to pull and start building the f22b1(yes its not a f23), but its close enough. AFA did you sell/or are you still selling your bisi stage 2 cam? If I sell my JRSC I will begin buying parts for the f22b1 and pull it from the accord in my driveway.

AFAccord

At this point, I'm not interested in selling it unless my next build requires something more aggressive. I've never seen hard proof that the F23/F22b cams are interchangeable, if that's what you're implying.

Gold DA9

yeah, im still unsure about that also.

Right now im looking at Delta, Web and Bisi Camshafts. I know you are running a Bisi camshaft and NASOHC is running a Web camshaft. I dont think I have seen any vtec delta camshafts yet for f-series.

If I do get a chance to start this build its going to be slow. Camshaft and springs and then pistons. Eventually i want to be around 225-250whp. Im thinking that i can reach that on 12:1 compression, just not sure yet on the cam. Also wondering if it will be possible with only doing gasket matching for porting. Car will be feed E85 as a DD when its done.


Forgot to mention that I do want to rev some where between 7500-8500 while using my GSR trans. F2B

Atreidies

Definitely good results. I'm sure it rips. I always love that feeling when you get it together and really get on it the first time. Pride and joy.

hotaccord243

Set up a re-tune appt for Mon. Nov 8th @ 4pm. Should have some new (higher) numbers up after then!

AFAccord

First post updated. I know there are some updated numbers from some of you already on the list, so post your updates! It would be nice to see some 1/4 mile times up there too!


My contribution to the list of boosted F23s:



Green: 5psi
Purple: 13psi
Blue: 19psi

F23Power

I know this thread been long dead but just thought I would share my results all the way from Africa. Stock F23, only has exhaust, 60mm throttle body and vtec is locked/deleted, and its mated to a Ls transmission on a Eg sedan. Motor was rebuilt fresh. Has about 100kms on it. 152whp 179wtq.