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B18C1 with CTR pistons trying to figure out compression ratio????

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Old May 23, 2007 | 07:45 PM
  #1  
USDM_R's Avatar
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From: portland, or, usa
Default B18C1 with CTR pistons trying to figure out compression ratio????

I have a B18C1 balanced and blueprinted bottomend with CTR pistons. Cylinder head is a B16A2 fully ported and polished with titanium valvesprings and retainers and CTR cams. Bolt ons are JG edlebrock intake manifold, Intake (jo blow) DC 4-1 Headers, high flow cat, and mandrel bent custom 2.50" piping. The ignition system is stock and it is running on a Hondata s100 with the OBD1 ECU and it has a 255lb walbro fuel pump, I'm not sure what the injectors are, I think they are stock Type-R. I have a Fuel meter and right now it sits at 48psi.

The car runs great no problems---- chirps the tires in 3rd gear with a GSR tranny (and yes it's dry pavement) I did a compression test and it ran about 250psi across all four cylinders. Is there any way some would be able to tell me what type of compression ratio I have. Thanks
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Old May 23, 2007 | 07:49 PM
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OceanStateTuning's Avatar
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From: Burrillville, RI
Default Re: B18C1 with CTR pistons trying to figure out compression ratio???? (USDM_R)

Should be around 12.5:1
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Old May 23, 2007 | 08:02 PM
  #3  
Natural Aspirations's Avatar
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Default Re: B18C1 with CTR pistons trying to figure out compression ratio???? (OceanStateTuning)

Between 12.7 and 13.7 depending on who you talk to.

http://www.zealautowerks.com/

Will give you a rough estimate, but clearances should have been measured durring assembly.

No one can even begin to guess what has been done to this motor as far as milling/decking.
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Old May 30, 2007 | 11:34 PM
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From: Vancouver, WA
Default

not to thread jack
but ive been doing a lot of researching on here
and im a lil concerned about my setup

i got the same setup as you...well im in the process of building it all i gotta do is assemble it anyways here what i got

b18c1 block
CTR pistons
stock b18c1 crank and rods

pr3 head with a resurface cause it was removed and i figured since its off i might as well get it resurfaced if it was warped in any way

top fuel stg 2 cams

stock valvetrain for now

spoon 2 layer headgasket

92 octane fuel too

am i looking at any clearance or drivability problems? its gonna be daily driven and tuned on crome too
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Old May 31, 2007 | 01:17 AM
  #5  
1.8L_allmotormilitia's Avatar
 
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From: Chevy Chase dr.
Default

mid 12's.
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Old May 31, 2007 | 09:41 AM
  #6  
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so im good to go?
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Old May 31, 2007 | 12:34 PM
  #7  
MR.johnson's Avatar
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Default Re: (preludedriva)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedriva &raquo;</TD></TR><TR><TD CLASS="quote">so im good to go?</TD></TR></TABLE>

yep.
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Old May 31, 2007 | 12:44 PM
  #8  
preludedriva's Avatar
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From: Vancouver, WA
Default

pimp ima do a huge write up on my entire civic build ive taken it a long ways this is one of the final steps :D
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