Is this possible? The deck height is 270mm on a B16b and 263mm on a B16a. Does this mean the pistons would be 7mm above where they are on the b16?
Thanks

 

i thought it was 3mm now i dont know

 

ok so say i want to use a B18a1 block for LSVTEC. Will this work? Can i just drop some CTR pistons in a B18 block and not worry about hitting the head with pistons? Thanks

 

The b16a's are .020 below the deck to start with.the b16b's will work with the stock gasket,just don't try and use a 1 layer gasket.
Glenn

 

CTR pistons will fit in any b-series motor as the pistons themselves are the same size. the difference in the B16B and B16a motors are that the B16B uses a B18C block and has longer rods to makup for the hight difference.

CTR pistons in a B16a results in 10.8:1 cr and this is pretty common to swap these in.

 

Read the post at the top of the all motor page.All you need to know about ctr/pct pistons.
Glenn

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">CTR pistons will fit in any b-series motor as the pistons themselves are the same size. the difference in the B16B and B16a motors are that the B16B uses a B18C block and has longer rods to makup for the hight difference.

CTR pistons in a B16a results in 10.8:1 cr and this is pretty common to swap these in.</TD></TR></TABLE>

How about you just don't post at all unless you have the right information. That way the newb won't be any more confused and srew up his **** because other newbs gave him the wrong information.

 

WTF are you talking about ?

you have your fact all messed up

the CTR pistons are 81mm bore all B-series (minus the B20) are 81mm

the B16b has a deck height of 270mm
the B16A has a deck height of 263mm
the B18C has a Deck height of 270mm

the B16 have the same stroke wether it be b16A/B so whatever the pistons the CR will be the same.

do your homework before making an *** of yourself

http://tech.hybridgarage.com/tech/bseries.html


and for CR check out http://www.c-speedracing.com/h...c.php

and Just for the Record... this Newb, has been on this board longer than you, i'm just not a postwhore like some.

 

still..you might wanna have a look here: https://honda-tech.com/zerothread?id=717928

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">WTF are you talking about ?

you have your fact all messed up

the CTR pistons are 81mm bore all B-series (minus the B20) are 81mm

the B16b has a deck height of 270mm
the B16A has a deck height of 263mm
the B18C has a Deck height of 270mm

the B16 have the same stroke wether it be b16A/B so whatever the pistons the CR will be the same.

do your homework before making an *** of yourself

http://tech.hybridgarage.com/tech/bseries.html


and for CR check out http://www.c-speedracing.com/h...c.php

and Just for the Record... this Newb, has been on this board longer than you, i'm just not a postwhore like some.</TD></TR></TABLE>

Nice try young grasshopper. You neglected to rule out the B20 in your first post. I quoted it if you need a reminder.

As for the compression ratio well you just stuck your foot in your mouth twice. 10.8:1 is for a stock B16B. A B16A with CTR's in stock bore will yield roughly 11.4:1 as has been documented numerous times by those who actually know what they are talking about.

Go home newb. Honda-Tech has a hard enough time without miss informed people like you running their mouth. Obvoiusly you haven't learned much sinse 2001.

Anything else you need me to clear up for you?

 

Alright I'll bite

how does 2 motor with the same Stroke, combustion chamber volume & piston dome displacment = 2 different Compession ratios ?

B16b = 77mm stroke, 42.7cc CCV & 8.63cc PDD = 10.8:1 CR
b16a = 77mm stroke, 42.7cc CCV & 8.63cc PDD = 11.4:1 ???

How does that work out ?

 

but you must also take into account that they have different deck heights. Seeing that the pistons stick out of the block in a b16a vs flushed in a b16b, it is easy to see how they have different compressions.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">Alright I'll bite

how does 2 motor with the same Stroke, combustion chamber volume & piston dome displacment = 2 different Compession ratios ?

B16b = 77mm stroke, 42.7cc CCV & 8.63cc PDD = 10.8:1 CR
b16a = 77mm stroke, 42.7cc CCV & 8.63cc PDD = 11.4:1 ???

How does that work out ?</TD></TR></TABLE>

Stop giving out bad information because you don't know what you're talking about. Have you ever seen a B16B? It's built on the same block as the b18C. There's a 7mm difference in deck height.

To the first poster, there is a thread on the top of this forum that discusses this very topic.

 

Guy better do your homework

this is all the info you need to give estimates of Compression ratio with different pistons.

http://www.c-speedracing.com/h...c.php

you can believe what you like, however i know I'm right... i have data to prove it.

K-Drum

P.S sorry about the threat hijack unfortunatly this is the prime reason I don't post alot, I don't like having to defend everything I say from comment from ignorant people.

 

i rarely post on here myself, but go lookup differences in the b16a and the b16b blocks.

b16b is basically a gs-r/type r block.

deck height 270mm for the gsr/type r blocks

b16a is 263 mm, clearly the block is shorter, so how are pistons in a 270mm block going to have the same compression if you put the same pistons in a 263mm block.

answer us that, call some engine builders and ask them, they will clearly prove you wrong.

P.S im sorry, unfortunatly this is the prime reason i dont visit this board becuase of idiots who misinform everyone.

 

oh, and if you do a search you might find a few threads about C-speed being a little off, especially since they dont state differences between the b16a and b16b block on there, they are the same option under blocks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">Guy better do your homework

this is all the info you need to give estimates of Compression ratio with different pistons.

http://www.c-speedracing.com/h...c.php

you can believe what you like, however i know I'm right... i have data to prove it.

K-Drum

P.S sorry about the threat hijack unfortunatly this is the prime reason I don't post alot, I don't like having to defend everything I say from comment from ignorant people. </TD></TR></TABLE>

You truly are a moron. C-Speed Racing is your "proof"? So you still think that CTR slugs in a stock B16A block will yield 10.8:1 compression? I can't believe that after all this you still don't know why you are wrong.

Trying to keep idiots like you from spreading the wrong information is thread jacking. There is still hope for you to figure it out on your own but if you just can't get it I guess I will have to spell it out for you.

Let me know.

Oh yeah, you guys need to stop thinking about the deck height. There are other things to concider when figuring compression ratios.

 

the B16B rods are 7mm longer than the B16a rods to account for the taller block. thus the deck height is the same as well as the B16a.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">the B16B rods are 7mm longer than the B16a rods to account for the taller block. thus the deck height is the same as well as the B16a.

</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EKhatch &raquo;</TD></TR><TR><TD CLASS="quote">
Oh yeah, you guys need to stop thinking about the deck height. There are other things to concider when figuring compression ratios. </TD></TR></TABLE>

 

alright let me recap info

B16B has a 7mm higer block than the B16A

B16b/B16a the Head CC are the same. (42.7cc)

The B16B rods are 7mm longer than the B16a

deck height is the same 0.020" (or .5mm)

crank is the same (77mm)

bore it the same (81mm)

what did I miss that causes the increase in compression in the B16a over the B16b

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">alright let me recap info

B16B has a 7mm higer block than the B16A

B16b/B16a the Head CC are the same.

The B16B rods are 7mm longer than the B16a

deck height is the same 0.020" (or .5mm)

crank is the same (77mm)

bore it the same (81mm)

what did I miss that causes the increase in compression in the B16a over the B16b</TD></TR></TABLE>

Go back to C-Speed and stare at the "piston-to-deck-height" entry box for as long as it takes to figure out why you are wrong.

 

you mean the one that says B16A/B = 0.020"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K-Drum &raquo;</TD></TR><TR><TD CLASS="quote">you mean the one that says B16A/B = 0.020"</TD></TR></TABLE>

That's the one, keep staring...

 

so if i went LSVTEC with a B18 block, would it work or would the pistons not fit correctly? Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91teg &raquo;</TD></TR><TR><TD CLASS="quote">so if i went LSVTEC with a B18 block, would it work or would the pistons not fit correctly? Thanks</TD></TR></TABLE>

Yes it would work. The small end of the rods need milled 1mm on each side to accept the pistons and the compression would be pretty high at around 12.7:1 with a B16 head and a touch over 13:1 with a GSR head.