I have here a set of 9:1 JE pro Series, stock bore for B18C5. There is a guy who needs pistons in my area, but he has a B16A2 engine. I know the rod length is different, but my question is......how much cr will I get out with the piston, if it match the rod eye and will not hit the head........he runs a JRSC with 0.7 Bar.

So, I want to put in B18C5 pistons into B16CA2 engine, is that possible?!

Help me out quick please.

 

We just went over this in another post. You're going to lose compression with those. The B18 pistons have a smaller dome or a larger dish than the B16 equivalent SCR pistons.

 

thx, but what cr do I went out, less than 9:1 is fine, I can always mill the head. Some more info or the link to the post would be fine...the searching machine found nothing.

 

Umm I'm confused on what you're asking, but I'll try to answer. Your SCR should be around 8.5-8.7:1. Never mill the head it's a bad practice to get into.

edit: here's the link https://honda-tech.com/zerothread?id=392454


[Modified by tzsir, 6:00 AM 1/22/2003]

 

why should I not mill the head? The quench area is not the best on Hondas, for whatever reason, so milling the head a bit to get out cr 9:1 should be okay IMO.

Perhaps someone else can confirm me, that my JE 9:1 B18C6 piston will fit into B16A2 and getting out 8.5:1 cr. I have to be 100% sure


[Modified by austrian type-R, 1:15 PM 1/22/2003]

 

There is about a -.9 difference in compression ratio using a b18c1/c5 piston in a b16a block. So figure 9.0:1 cr b18c5 pistons will yield 8.1:1 cr in a b16a block, the heads use the same combustion chamber volume so that won't matter.


[Modified by boostaholic, 2:26 PM 1/22/2003]