are there such a thing as jdm si cams for the h23? when i bought my head the guy said it had them. i've never heard of them so i thought i'd ask

 

The JDM Prelude Si came with the DOHC Non-VTEC F22b, similar to the H23 but with a little less torque, however it shares the P14 head with the H23 so I believe they have identical cams...



Modified by Sam1am26 at 5:53 PM 3/22/2004

 

head i am about to put on has these cams already in them. are they better or worse than my stock?

 

what kinda cams if there aftermarket mostlikely there gonna be better!

 

jdm si cams

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sam1am26 &raquo;</TD></TR><TR><TD CLASS="quote">they have identical cams...


Modified by Sam1am26 at 3:08 AM 3/11/2004</TD></TR></TABLE>

 

so should i keep them in there ?? or put the stock ones back in

 

A JDM H23A is a VTEC motor. It was found in some of the accords. The F23 is an american motor that was used in the SOHC VTEC accord from 1997 and up. The only "JDM Cam" that anyone could be referring too would be the ones found in the F22B which is the JDM DOHC non-vtech motor. Correct me if i am wrong. The F22B is the exact same as the USDM H23A1 except the F22B has a smaller bore. The F22B was put in the 91-96 JDM and EURO Prelude Si. But like I said, correct me if I am wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmlude_dude &raquo;</TD></TR><TR><TD CLASS="quote">A JDM H23A is a VTEC motor. It was found in some of the accords. </TD></TR></TABLE>

no its not. a jdm h23a is the same exact motor as the usdm h23a and its is a non-vtec DOHC 160hp 156tq

therefore the cams are exactly the same

David

 

thanks for info guys...by the way, if the head is milled 20 thou. what would that bring the compr. to ?

 

on a stock h23 with stock pistons about 10:1. the stock c/r is 9.8:1 and i think every .01 mill is a .1:1 compression gain. im not completely sure on that though

David

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmlude_dude &raquo;</TD></TR><TR><TD CLASS="quote">A JDM H23A is a VTEC motor. It was found in some of the accords. The F23 is an american motor that was used in the SOHC VTEC accord from 1997 and up. The only "JDM Cam" that anyone could be referring too would be the ones found in the F22B which is the JDM DOHC non-vtech motor. Correct me if i am wrong. The F22B is the exact same as the USDM H23A1 except the F22B has a smaller bore. The F22B was put in the 91-96 JDM and EURO Prelude Si. But like I said, correct me if I am wrong. </TD></TR></TABLE>

We aren't even talking about the H23a VTEC right now... and my bad i meant the f22b what is in the jdm si, this is what i have been tying to say the entire time... they have the same exact head, therefor same cams...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DW &raquo;</TD></TR><TR><TD CLASS="quote">

no its not. a jdm h23a is the same exact motor as the usdm h23a and its is a non-vtec DOHC 160hp 156tq

therefore the cams are exactly the same

David</TD></TR></TABLE>
The JDM H23a is not the same as the USDM H23a1, the JDM H23a is a 2.3L DOHC VTEC motor found in the JDM 98+ Accord SiR Wagons. The motor you are thinking of is the F22b which is a DOHC Non-VTEC that is very similar to the USDM H23a1...

 

the guy that sold me the head is full of **** then, but its got new comp valve springs, valves, retainers, 5 angle v job plus its port/polished and milled. so i guess its not that bad of a deal..only paid $375 it should be good for about 30-40 hp right?

 

i dont know about 30-40 hp but if that is def a good deal... good luck and let us now how it goes...

 

will do...

oh yea its got 20cc larger injectors too, would you say more like 20hp?

how would you rate swapping a head on 1-10?

 

Yeah i would say closer to that.. putting on a beefier head is always a 10 in my book... what are you going to do for engine management if you are using bigger injectors? safc?

 

i meant 1-10 in difficulty. you think i need an safc? i actually hadnt thought about that yet. what do you suggest

 

Oh, well if all you are doing is just swapping the head on that it isn't too difficult as long as you have a haynes manual if you don't ecatly know what your doing, probably a 5 or so... I'd recommend an s-afc unless you want to start throwing down money on a new ECU and a Hondata..

 

can you buy a helms locally or do they normally have to be ordered? safc's arent exactly plug and play... is it a must? i might just stick my stock ones back in. the wallet is lookin pretty slim these days. moving to to hawaii in july and im shipping the ride so i need all the cheeze i got

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sam1am26 &raquo;</TD></TR><TR><TD CLASS="quote">

The JDM H23a is not the same as the USDM H23a1, the JDM H23a is a 2.3L DOHC VTEC motor found in the JDM 98+ Accord SiR Wagons. The motor you are thinking of is the F22b which is a DOHC Non-VTEC that is very similar to the USDM H23a1...</TD></TR></TABLE>

ok if the jdm h23 is not the same as the usdm one then why is hmotoronline selling a jdm h23 that is identical to the usdm h23? check the bottom of this link out

http://www.hmotorsonline.com/s...d=JDMUSDM Engines&hit=25
damn link is messed up. just go to their site and the 'jdm h23' is on the last page of their motor mall

David

 

because the jdm f22b is a similar motor and is a replacemnt motor for an h23 so they just label it the h23 so people wont be confused, but now you know they lied to you and things will never be the same...

 

ahhh, i see. i was just curious on that. so the jdm SI has the f22b and what does the jdm S have? or do they even have a S in japan

David

 

no they didnt have an s in japan

 

so if i keep the "jdm" cams in there i'll losing power opposed to the h23 cams?