Ok I need some info from you ITR guys. I have a chance to get a complete B16B for a really good price. I want to put it in my 95 LS integra, now before I start getting flamed I will explaine my intension's. I was reading somewhere in another Tech site that the B16B and ITR blocks are from the same casting. The only major difference is the CTR has a shorter stroke crank. Is it possible to put a ITR crank into the CTR block and make the B16B a 1.8 CTR/ITR engine?

I see spoon sells a 1.8 stroker kit to turn the CTR into a 1.8 CTR. I have a complete 2000 SI engine that I can sell to a neighbor. I do like the Idea of getting the CTR and swapping the crank out for a ITR one. Has anyone done this? Can someone else shine more light on this matter?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonfed95 &raquo;</TD></TR><TR><TD CLASS="quote"> Is it possible to put a ITR crank into the CTR block and make the B16B a 1.8 CTR/ITR engine?</TD></TR></TABLE>

yes you can do it, but you'll need itr rods also.

 

Are the rods different lengths? What are the specs for the two if you don't mind?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonfed95 &raquo;</TD></TR><TR><TD CLASS="quote">Are the rods different lengths? What are the specs for the two if you don't mind?</TD></TR></TABLE>

i don't have exact specs but the ctr rod is longer than the itr rod.
you can use either pct or p73 slugs.
the pct slugs will give you a higher CR.

 

unless you are getting a real good deal on the CTR motor why don't you just buy an ITR motor? The only differences between the two are the crank and rods, so you will have an ITR motor after swapping the crank and rods?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jon V &raquo;</TD></TR><TR><TD CLASS="quote">unless you are getting a real good deal on the CTR motor why don't you just buy an ITR motor? The only differences between the two are the crank and rods, so you will have an ITR motor after swapping the crank and rods?</TD></TR></TABLE>

Yeah I am getting it for a good deal. I am selling my 2000 SI engine to my neighbor for $3200 and getting a B16B for $2800. I haven't seen a ITR swap go for under $4000. So I figure I would make one with the CTR engine. Also when I am done I wouldn't have to buy the CTR's intake cam. If I replace the crank, and rods but leave everything else stock what will my compression be?

 

Go for it. Just remember that a Japanese man actually took that B16B and assembled it by hand using a very precise micrometer to get nice, tight clearances. Make sure you have a good builder assemble the bottom end for you. Your compression will be around 11.5:1, which is just about the limit on pump gas.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonfed95 &raquo;</TD></TR><TR><TD CLASS="quote">Yeah I am getting it for a good deal. I am selling my 2000 SI engine to my neighbor for $3200 and getting a B16B for $2800. I haven't seen a ITR swap go for under $4000. So I figure I would make one with the CTR engine. Also when I am done I wouldn't have to buy the CTR's intake cam. If I replace the crank, and rods but leave everything else stock what will my compression be?</TD></TR></TABLE>

Great deal, good luck and make sure you post up some results when you get the motor

BTW I think the ITR and CTR intake cam were the same after 2000 or something

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kNOwLedGeDA9 &raquo;</TD></TR><TR><TD CLASS="quote">Go for it. Just remember that a Japanese man actually took that B16B and assembled it by hand using a very precise micrometer to get nice, tight clearances. Make sure you have a good builder assemble the bottom end for you. Your compression will be around 11.5:1, which is just about the limit on pump gas.</TD></TR></TABLE>

is like some one installing CTR pistons on an ITR motor , CR should be near 12.1

 

sounds like a good deal and a good plan... but there are 2 other options to think about-

1) buy GSR crank/rods... same displacement as the ITR parts but much less expensive on the used market. ---&gt;balance the GSR parts at the local engine shop and youre possibly up to or beyond oem ITR specs.

2) buy LS/B20 crank/rods (and install ARP rod-bolts), this will net you some more displacement and is usually even cheaper then GSR or ITR parts.

good luck! keep us up to date too....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kNOwLedGeDA9 &raquo;</TD></TR><TR><TD CLASS="quote">Go for it. Just remember that a Japanese man actually took that B16B and assembled it by hand using a very precise micrometer to get nice, tight clearances. Make sure you have a good builder assemble the bottom end for you. Your compression will be around 11.5:1, which is just about the limit on pump gas.</TD></TR></TABLE>

im running 12.5:1 on pump gas?, but prob more like 12.8:1 never pings it all has to do with tunnig

 

about the ls crank...umm would the crank and rods need to be even more balanced?

 

B16B rod = 142.3mm
B18C rod = 137.9mm

B-series Compression Calculator says: 12.74:1 NOT pump gas freindly.... B16A pistons are a better choice...


btw, i will buy your B16B crank and rods off you...shoot me a PM or AOL IM

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondatuner123 &raquo;</TD></TR><TR><TD CLASS="quote">about the ls crank...umm would the crank and rods need to be even more balanced? </TD></TR></TABLE>

There's more to it than making sure it's balanced. THe ITR crank has more counterweights than the other cranks. No amount of balancing will get you that.

Also, B16a pistons don't have the molybdenum coating. Just keep these things in mind if you're thinking about getting parts not from an R motor.