Ok i've been looking for answers all day and haven't really figured everything out. Not to familiar with inerchangeable internals so here we go.

I have a JDM b16a stock block and pwo head and want to use some CTR pistons. I know that you have to shave the stock b16 rods for the pistons to fit. Is there anything else that i have to do or worry about? Can i just drop these in and everything should be good?

Also what if i got some CTR pistons and ITR rods, what would i have to do to make this work? Would the ITR rods be better to use than the stock b16 rods?

I searched and was getting frustrated so any help would be appreciated.
Thanks

 

yea thats pretty much all thats required to fit the ctr pistons to the b16 rods, shave 1mm off each side. about the itr rods, those are 1.8L rods and will not work with your b16 block, whereas the b16's and b18's have different deck heights. also consider the comp ratio to be at 10.8:1

 

Ok thanks.

And are you saying that compression will be 10.8-1.
I've heard tons of other numbers:
11.1-1
11.5-1
11.6-1
How did you get 10.8-1.....just curious.

Also when i install the CTR pistons and stock rods is there anything else i should do while the motor is appart?

 

i was considering you a had a full b16a block and head, i used c-speeds comp calculator http://www.c-speedracing.com/h...c.php and got 10.8:1

while the block is apart, get new main and rod bearings (oem, acl, whatever) and arp rod bolts if you want.

whats gonna be your setup?

 

what about head studs...important or not?

 

oh yea, its really up to you, arp or aebs head bolts

 

ok so it would be a safe bet to get some CTR pistons and have them pressed onto my stock rods. I shouldn't have any clearance problems. BUT what if i went with a 2 or 1 layer head gasket, and or milled the head. What would i have to do to ensure proper clearance.

Sorry, just trying to get all my questions answered at once.

 

well what comp ratio are you shooting for? better yet, whats gonna be your setup. also i hope you have plans for engine management

 

Well i was hoping to get into low to mid 11s. I was just planning on using CTR pistons, and getting Skunk 2 stage 2 cams with springs, retainers, etc. All i have now is skunk intake manifold, header, exhaust, aem fuel rail, aem FPR. Also was goin to convert to obd1 and use p30 with mugen chip

 

you can rasie the comp ratio by a couple points higher by getting a spoon/mugen head gasket. also consider uberdata to tune your engine, the program is free you just need to buy the parts such as the chipping kit, chip burner, and have acess to a laptop for datalogging, you'll need a wideband o2 meter too. very easy to learn

 

Yeah i read somewhere on here that someone was using a mugen single layer head gasket with their CTR pistons, but didn't know if that was ok to do without doing anything else. Thanks for all your info.

 

try searching more

https://honda-tech.com/zerothread?id=717928

oh and c-speed is wrong, i dont know how many times you have to say this before people listen

 

i agree that c-speed can be wrong but to a certain extent. calculating pct pistons in a b16a seems to be right

 

c-speed racings calculator is incorrect with CTR's because of the incorrect comp height.

https://honda-tech.com/zerothread?id=717928

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LsVtec92Hatch &raquo;</TD></TR><TR><TD CLASS="quote">c-speed racings calculator is incorrect with CTR's because of the incorrect comp height.

https://honda-tech.com/zerothread?id=717928 </TD></TR></TABLE>

Yes, compression should be just over 11.4:1.

 

Ok so i'm gonna use CTR pistons in my b16a with pwo head and my compression should be 11.4-1. So that should be fine to run on 91 octane right? I'm just tring to have a fun street car with some umpf.

 

yes, if you have it tuned 11.4:1 is fine. Thats right about what im running as we speak. is 91 octane the highest octane offered in TX?

 

yeah this place blows
one day i'll make it back to cali

 

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

https://honda-tech.com/zerothread?id=717928

oh and c-speed is wrong, i dont know how many times you have to say this before people listen</TD></TR></TABLE>

Sorry didn't find this thread in my search because i was searching the archived content and this thread is still active now.

 

just out of curiosity, are the b16a and b16b rods the same? because the b16b has 10.8:1 and i always thought that if you switched to b16b pistons in a b16a, you'll get the same cr.

 

nope, different rod length.

 

ok so i got some new CTR pistons that have already been assembled with b16 rods, rings, and new arp rod bearings. How will i know which b16 (a/b) rods i have? And what kind of difference, if any, will the rods make in a jdm b16a (1st gen, with pwo head)?