Alright, I'm half way done with my build. The head is completely built via......b16a2 head= s2s2 pro series cams, s2 valve springs&retainers, s2 high compression valves, valve stem seals, valve guides, spoon hc head gasket, and s2 adjustable cam gears. Now its just to get the block done. Finding one has been a pain and this one might not come through either. I am soon to get my hands on a b18c block hopefully, owner nor I are sure if its type r or gsr, but it wont matter because all the internals will be replaced. Ive read a bunch of different set ups and suggestions on compression ratio with all motor applications but without any conditions. I want to know with being fully built, sleeved and bored to a 1.9 or 2.0. (83 or 84mm) What compression should I shoot for? Ive heard with these aggressive cams that 12.1 is recommended, but I heard that it might be too high for daily driver and increase chance of detonation. I am shootin for atleast 210 and up whp. I use 93 octane now with my b16 so I will definitely use the same after my build, but will it be enough? What pistons could I get at 84mm bore for a b18 because a lot of the manufacturers stop at 83mm bore for n/a for the b18c?

heres a couple of links

http://www.jepistons.com/cat/je/sport/honda/b18c1.shtml
http://www.ariaspistons.com/acurahonda.html
http://www.wiseco.com/PDFs/Catalogs/SC06_AcuraHonda.pdf
http://www.cppistons.com/PDFs/Sport%...Compactpdf.pdf

 

do you have the pro1 or pro2 cams? the pro2's like 12:1+ and with 93 octane, can still be used for daily driving with good tuning. the pro1's you can get away with 11:1+. i like the cp's myself, my friend has a set in 84mm 11.5:1 and they're a work of art. if not cp's then wiseco is next on my list.

 

was the 84mm ones that he has for a b18 or b20, becuase that spread sheet was from the cp website itself and for b18c the biggest bore is 83 and not at the compression i want...........how many litres is that anyway? and does it matter the application which the spread sheet assigns, or is all b-series the same except ls or and b20 or something like that?

 

my friend has a set for the b20. unless im missing something, all of the b series pistons on the site should be interchangeable.

 

Just call CP, or inquire within there website. They made pistons for me with a CR that was not listed in there cat. and didn't charge me extra.