ProjectTib

I was wondering mainly what the difference between the b16a and b16b are. The b16a is a JDM Si motor that supposed to push about 170 hp. b16b is JDM CTR motor that pushesabout 185 hp and comes with a 4.4 LSD tranny. what are the differences between these two motors and what tranny does the b16a come with?

junkyard racer

They are a night and day difference. Everything about the motor is different.

LSR 0NE

Correct me if I am wrong, the b16b has a itr crank and 12.1 comp pistons and much better cams, the b16a is pretty much the same as the usdm version, but a little more comp and a better ecu. Hopefully that helps!!!

boosted2182

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSR 0NE &raquo;</TD></TR><TR><TD CLASS="quote">Correct me if I am wrong, the b16b has a itr crank and 12.1 comp pistons and much better cams, the b16a is pretty much the same as the usdm version, but a little more comp and a better ecu. Hopefully that helps!!! </TD></TR></TABLE>

the b16b does not have an itr crank it uses the same one as the b16a. the b16b has a longer rods, itr block, itr head, and agressive oem cams

ProjectTib

thanks that helps... but it does not have an itr block lol

B16b-EJ8

Everything you wanted to know about a B16b and more....

http://www.ek9.org/forum/showthread.php?t=1

and it does have an ITR block (also known as a P72 block) only it is stampped B16b

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ProjectTib &raquo;</TD></TR><TR><TD CLASS="quote">thanks that helps... but it does not have an itr block lol</TD></TR></TABLE>

You have a lot to learn. it DOES have an ITR block.

nokturnal_munkeeboy

the different is cams pistons and ecu and mild port and polish

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nokturnal_munkeeboy &raquo;</TD></TR><TR><TD CLASS="quote">the different is cams pistons and ecu and mild port and polish</TD></TR></TABLE>

And the rods, and the crankshaft, and the block girdle, and the bearing sizes, and the bearing clearances, and the flywheel, and in the intake manifold, and the valves, and the valve springs... etc.

blinx9900

and the tranny, lsd, dual synchors, one piece shift fork etc...

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">and the tranny, lsd, dual synchors, one piece shift fork etc... </TD></TR></TABLE>

LSD yes, "dual synchros" no... and the "one piece shift fork" is the same as all other B series hydro trannies. Trust me, I had a CTR tranny. Had it apart to put in the 4.75 final drive. Its the same internally minus the LSD.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid96EK &raquo;</TD></TR><TR><TD CLASS="quote">LSD yes, "dual synchros" no... and the "one piece shift fork" is the same as all other B series hydro trannies. Trust me, I had a CTR tranny. Had it apart to put in the 4.75 final drive. Its the same internally minus the LSD.</TD></TR></TABLE>

really, it was my understanding that it had dual synchros in 2nd 3rd and 4th gear, is that not correct? there was thread on here where a guy disected both a r and non-r trans and the non-r had a 2 piece fork.

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

really, it was my understanding that it had dual synchros in 2nd 3rd and 4th gear, is that not correct? there was thread on here where a guy disected both a r and non-r trans and the non-r had a 2 piece fork.</TD></TR></TABLE>

Well I do remember there was nothing different about the synchros. I didn't notice anything out of the ordinary on the shift forks either. Looked just like any other B series tranny. Honda doesn't list any differences either...

1.8L_allmotormilitia

b16b is better in all ways compared to a b16a.

miach

actualy, the b16b block is a gsr block (p72)
a ctr crank, rods, pistons are all ctr they are not the same as any other.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miach &raquo;</TD></TR><TR><TD CLASS="quote">actualy, the b16b block is a gsr block (p72)
a ctr crank, rods, pistons are all ctr they are not the same as any other.</TD></TR></TABLE>

lies, valve springs and retainers are same as ITR im sure it has the same bearings and oil pump/water pump

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

lies, valve springs and retainers are same as ITR im sure it has the same bearings and oil pump/water pump </TD></TR></TABLE>

So how is what he said a "lie"? He didn't say the valvesprings or retainers were unique... He also said nothing about the oil pump/water pump being "special". The ITR units of oil pump/water pump are identical to the GSR parts. Check the part number. I am also pretty sure you will find that ITR/CTR retainers are the same as the GSR parts as well. People need to just freaking drop the nit picking crap about how unique the CTR engine is.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid96EK &raquo;</TD></TR><TR><TD CLASS="quote">

So how is what he said a "lie"? He didn't say the valvesprings or retainers were unique... He also said nothing about the oil pump/water pump being "special". The ITR units of oil pump/water pump are identical to the GSR parts. Check the part number. I am also pretty sure you will find that ITR/CTR retainers are the same as the GSR parts as well. People need to just freaking drop the nit picking crap about how unique the CTR engine is.</TD></TR></TABLE>

sorry i misinterprited it, i thought he was saying that the ctr shared nothing in common with other b's but now i see he was referring rods/pitons/crank only, my bad, i was actually saying how NOT unique the ctr is by pointing out the parts it shares with other motors.

the only part i read was

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miach &raquo;</TD></TR><TR><TD CLASS="quote">actually... ....they are not the same as any other.</TD></TR></TABLE>

so this is why i misunderstood, my fault, but yeah i was doing the opposite of nit picking.

B16b-EJ8

I too made tha same mistake while reading it...thinking he said nothng else was the same

Deetz

Think of the B16B simply as a destroked ITR engine.

One other thing that should be noted is that the pistons found in the CTR engine are not really the greatest for burn efficiency. The last two B16B's i pulled apart had the pistons carboned up as hell, even coming out of Japan. I believe the domes to be too aggresive for a good fuel burn.

4DRmafia

off topic will this ctr engine be a good motor swap to put in a 96 integra? it really temping with everything i just read abt this motor!

Deetz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Skip’sDC2 &raquo;</TD></TR><TR><TD CLASS="quote">off topic will this ctr engine be a good motor swap to put in a 96 integra? it really temping with everything i just read abt this motor!</TD></TR></TABLE>

I dissagree, "ctr engine = no torque" in a heavy Integra, are you kidding?

B16b-EJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Skip’sDC2 &raquo;</TD></TR><TR><TD CLASS="quote">off topic will this ctr engine be a good motor swap to put in a 96 integra? it really temping with everything i just read abt this motor!</TD></TR></TABLE>

I would not put a 16b in an integra...

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deetz &raquo;</TD></TR><TR><TD CLASS="quote">I dissagree, "ctr engine = no torque" in a heavy Integra, are you kidding?</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16b-EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">I would not put a 16b in an integra...</TD></TR></TABLE>

i love the b16b but i have to agree with whats said above, b16b should only be used in lighter cars like eg/ej/ef basically under 2300lbs

builthatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">


i love the b16b but i have to agree with whats said above, b16b should only be used in lighter cars like eg/ej/ef basically under 2300lbs</TD></TR></TABLE>

this is why i elected to go with jdm gsr instead of b16b; my car is maybe 2800+ with me in it, so a b16b would have done nothing for me.