Dyno graph of the h23a1 w/ crower stage 1 camshafts and other mods - Honda Prelude Forum

prelude2sin · 09-29-2004, 05:12 PM

[img]http://www.*********************.com/wetoddimage.wtdr/wNTgyNjczNnM0MTNkZmQzMXk1NDE%3D.jpg[/img]

max power= 161.8
max torque=158.2

modification list:
*home-made CAI
*magnaflo muffler
*IM heat sheild
*egr block plate
*bypass cold-start valve
*disconnected the vacuum hose leading to the IAB
*13 degree timing (D'OH)
*CROWER stage 1 cams

*DC header

[img]http://www.*********************.com/wetoddimage.wtdr/wNTgyODAzNnM0MTNkZmQzMXk1NDE%3D.jpg[/img]

unlike me, the lude is running rich

i just need to tune the lude and get a full exhuast

...

twonslude · 09-29-2004, 05:36 PM

nice numbers man...keep it goin.

GaRn · 09-29-2004, 06:16 PM

holy crap! thats pretty damn good... so you were at mid 140's before the cams/header?

*EDIT: holy **** you went from 134 whp at 6500 rpms to 154 whp at 6500 rpms..

thats exactly where the h23 needs it most.. mine sucks past 5750 rpms lol

yield · 09-29-2004, 06:45 PM

wow, Crower wasn't lying!!

Me likey, especially since you don't need a valvetrain upgrade. 15hp for $400 is not too shabby... anyone wanna buy my new rims

red92si · 09-29-2004, 06:49 PM

Awesome stuff... very good data for the rest of us. I would love to see a dyno graph of the Stage 2 cams.

preludestud11 · 09-29-2004, 10:07 PM

wow thats h22 hp with about 15lb more torque. Awsome. their is hope for the h23 people.

Rich

TruNinja619 · 09-29-2004, 10:11 PM

take you for giving a lot of hope for my H23...

yohan420 · 09-30-2004, 12:11 AM

do it guys .. after upgrading to my H22 .. i'd much rather have done up my h23 ..

theres no low end powe r.. though its nice to have vtec, i can't spend all day waiting til 5500rpm for power ...

petern101 · 09-30-2004, 12:11 AM

wow this does give faith to me keeping my h23.....btw how much roughly did this all cost?

RedH22A1 · 09-30-2004, 02:37 AM

impressive numbers.. keep up the good work...

jsmooney · 09-30-2004, 05:36 AM

pssst: F22B >H23A

i've yet to get it dynoed, i shoulda gone at nopi though. I am just curious to see what an F22B dynos at as no one really knows. I'll get the H23A Stage 1 cams, but then again i dont want it to throw off my top end....

But, damn those are nice numbers. you're making the vtec'ers jealous here

keep up the good work!!

GaRn · 09-30-2004, 08:23 AM

Quote:

Originally Posted by preludestud11

wow thats h22 hp with about 15lb more torque. Awsome. their is hope for the h23 people.

Rich

I know! check out the torque curve even at 2k-3k rpms!!!!! HOLY

I think these cams are like $400 or so.. I'm gettin em now! lol

prelude2sin · 09-30-2004, 07:31 PM

Quote:

Originally Posted by petern101

wow this does give faith to me keeping my h23.....btw how much roughly did this all cost?

modification list:
*home-made CAI - like $40
*magnaflo muffler - $60
*IM heat sheild - $60
*egr block plate - $.50(soda can)

*bypass cold-start valve - same as above

*disconnected the vacuum hose leading to the IAB - free
*13 degree timing (D'OH)
*CROWER stage 1 cams - about $410
*DC header - about $100

so yeah i spent like $730.50

, but im going to invest a pretty penny on the full cat-back exhaust and hondata/safc + tunning

prelude2sin · 09-30-2004, 07:46 PM

Quote:

Originally Posted by GaRn

holy crap! thats pretty damn good... so you were at mid 140's before the cams/header?

*EDIT: holy **** you went from 134 whp at 6500 rpms to 154 whp at 6500 rpms..

thats exactly where the h23 needs it most.. mine sucks past 5750 rpms lol

whoops i should of specified what mods i had in the old dyno graph

modification list:
*home-made CAI new
*magnaflo muffler
*IM heat sheild new
*egr block plate new
*bypass cold-start valve
*disconnected the vacuum hose leading to the IAB
*13 degree timing (D'OH)
*CROWER stage 1 cams new
*DC header new

btw, thanks for your comments, i really love the cams and the header

... i want to see what numbers i pull w/ a better ex. and some tunning, ofcourse ill let you guys know when i get it done.

GaRn · 09-30-2004, 08:16 PM

sweetness! I have a header on the way to my door.. how much did that help? did you have it on before the cams? I'm hoping for a noticeable difference!

prelude2sin · 09-30-2004, 08:53 PM

i installed the camshafts first and then the header. with the cams i felt the 'lude pull to redline, instead of dying after 5500 rpms, but with the header i felt the engine pull harder. but yeah the header did make a difference in my case

PRelude787 · 09-30-2004, 09:40 PM

Quick question.....you said you disconnected the vacuum hose going to the IAB. What's this for?

4thGenReady2Go · 09-30-2004, 09:46 PM

Quote:

Originally Posted by jsmooney

pssst: F22B >H23A
...

explain that one to me, how is an engine roughly the same displacement as an H22 minus VTEC better than an H23a1?

PreludeRacer023 · 09-30-2004, 11:34 PM

Quote:

Originally Posted by yohan420

do it guys .. after upgrading to my H22 .. i'd much rather have done up my h23 ..

theres no low end powe r.. though its nice to have vtec, i can't spend all day waiting til 5500rpm for power ...

i dont know whats wrong with your h22 or anyone elses who thinks their h23 has more low end, my h22 puts out far more torque and eats up my h23 and any othe h23 badly at any rpm...i think the stronger low end is a fairy tale...kinda like an urban legend...the proof is in dynos, and 1/4 times, hell look at 330 ft marks at the track on the 2 motors, theres a HUGE diff in times...but believe what you want too

cantdrive55 · 09-30-2004, 11:45 PM

^By 330' I sure as hell hope you're in VTEC. I'd love to see a stock H22 dyno vs a stock H23 dyno below VTEC engagement.