Here we go...
I live in Sweden and drive 1 of 4 B18C1 equipped EuroCivic Wagons here..
(Pics in the link in my signature)

I´m in the middle of rebuilding my engine this winter and has totally lost it with
upgrads.. Now the question is what do you guys think the engine will produce in horsepowers if its fully tuned and mapped correct?
I have no clue but would be satisfied if I can get 200 at the wheels..

Block:
B18C4 OEM w/ B16B Pistons

Head:
B18C6 kitted w/
*S2S2 Cams
*S2 Cam Gears
*S2 CR raising Valve (0.3-0.4 accordning to S2)
*S2 Titanium Retainers
*S2 Valve Springs
*Hondata IMG
*JDM ITR header 2.5" collector
*ITB´s w/ CBR 42mm

Rev. limit raised to 9000
CR 12.0-12.3

 

Sounds like quite the setup and should make that 200whp you're looking for or more. The only concern I would have is this:

[QUOTE=Clabbe]
Block:
B18C4 OEM w/ <U>B16B Pistons </U>

Head:
B18C6 kitted w/
*S2S2 Cams
*S2 Cam Gears
<U>*S2 CR raising Valve (0.3-0.4 accordning to S2) </U>
*S2 Titanium Retainers
*S2 Valve Springs
*Hondata IMG
*JDM ITR header 2.5" collector
*ITB´s w/ CBR 42mm

Rev. limit raised to 9000
<U>CR 12.0-12.3</U>QUOTE]

Just that B18c block with those CTR pistons in it would give you:

P72 head/B18C Block/CTR pistons

STD = 12.924594026551906

Those flat face valves would give you another .3-.4 bump in compression to around 13.2-13.3:1....a little high for a daily driver isn't it?

 

According to this calculation-site (http://www.c-speedracing.com/h...c.php)
The P72/B18C1/B16B Pistons should give me a CR of 11.751778779507741
Added the S2 valves I get it to about 12.0-12.2

 

what sort of pump gas do you guys get over there? Here in smog **** california we only get 91 octane for "premium" fuel... so 12.5:1 is pushing it here. But in Japan they can get 98... so its a lot better to run higher CR engines on that. Maybe its not much of an issue for him?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Clabbe &raquo;</TD></TR><TR><TD CLASS="quote">According to this calculation-site (http://www.c-speedracing.com/h...c.php)
The P72/B18C1/B16B Pistons should give me a CR of 11.751778779507741
Added the S2 valves I get it to about 12.0-12.2</TD></TR></TABLE>

There's an entire thread stickied at the top of this form https://honda-tech.com/zerothread?id=717928 specifically dedicated to the fact that most of the compression calculators online, including c-speed racing is inaccurate when using the CTR pistons in all the different block and head configurations. The numbers I posted above were taken directly from that thread and quoted "Omniman". His numbers are considered to be 100% accurate because he physically did all the measurements himself and is also one of the most experienced engine builders on this site.

 

We have 95, 96 and 98 here...
So the CR should be 13 then??

 

Yeah, according to omniman's thread which is a lot more accurate then c-speed racing compression calculator. With 98 octane gas I don't think running a compression ratio of 13 would be a problem, just as long as you have a good engine management setup and some good tuners in the area. You might want to add a breather kit to your setup. Was your civic wagon only offered in European market? for something different, it looks good

 

Yup... Only offered in Europe...
It´s a product of Honda´s collaboration with Rover in the early 90´s..