H22CIVIC

Can someone tell me all the differences between these motors. What does the B16B rev to as well?

HXMan

B16b uses the same block as a b18c, but still uses b16 crank...the b18c has a larger deck height then a b16a, this allow the use of longer rods when using a b16 crank.

I think it revs to 8500?

chrisJ

b16b = destroked ITR motor. same block and head as the ITR. the difference is in the internals. the b16A actually has very little in common with the B16B, besides being a 1.6L. The b16b internals are of the quality that u see in the ITR, coated pistons, coutner weights on the crank are diff. ect, not to mention the head and the higher lift/duration cams. the rev limit on the stock ctr ecu is 8400.

H22CIVIC

So are the B16A and B16B cranks the same? If they are can you drop a B16 crank in a LS block to destroke it in a LSVtec setup? Would this work?

H22CIVIC

Is there a website I can go to learn more about the B16B?

HXMan

1. The b16a and b16b use the same crank...although the b16b crank most likely has different counter weights like the b18c5 crank.

2. Yes....but the b18b block does not have the same deck height as the b18c.

b18c 212.39
b18b 211.84

So if you have a b18b block, you will not be able to use the b16b rods...you will need a custom length.

H22CIVIC

THanks for all the info!! I was debating about building up a B16B monster. I am running the H22 now, but I really miss the intense high rpm from a B swap!

Anyone running any fast times with an all motor B16??

Also, I want to get back in to Auto Crossing so this is why I am debating to go against my H22. God forgive me!!!


[Modified by H22CIVIC, 4:23 AM 10/1/2001]

Katman

partially wrong...
The B16A and B16B cranks are NOT the same. Yes they are 1.6L cranks, but the B16B crank uses crank & rod bearings similiar to that of a B18C/B18C-R's crank. B16B crank+rod beatings are actually smaller in width when compared to a regualar B16A's bearings.

A B16B's crank is basically identical to an ITR crank - in terms of counterweights, & bearing sizes, but in a 1.6L form. And because of this bearing width situation, I believe you can only use a B18C/B18C-R/or B16B crank in an LS-B18A/B block. Don't quote me on that tho..I've never stroked a B18A/B before, I've just heard this from a few engine builders I know...




[Modified by Katman, 2:16 AM 10/1/2001]

HXMan

Thanks Katman....now I know a little more.

WAFFLES

Just curious, what rods does the b16b use. Same deck as gsr, 1.6 crank, what rods. Also, what is the rod/stroke ratio?

Katman

don't have the rod ratio off the top of my head..but it should be real close to 1.75

B16B rods are their own rods specifically for the B16B engine.
They're the longest rod of the B-series engines. I've compared them side by side, pretty nutty.

Katman

nope..
the B16B block is a P72/GSR block stamped with B16B on the frontside. They used high compression pistons as part of its 'R'ness...

ITRbroham

The difference in the deck heights between the B16A and B16B will only enable the B16A owner to use the B's pistons but not the B's rods! Is this correct? Only the A's rods can be used.

Katman

Yes..you can use CTR pistons in ANY B-series engine - but when it comes to B16A/B17A and I think B18A/B, the rods have to me modified slightly in order to fit the CTR piston on the rod, at the wrist pin area. The rods are too fat/wide on these rods to easily fit onto a CTR piston...so material needs to be taken off in order to fit - a bit redundant eh? hehe..

Yes, only B16A rods should be used in a B16A engine....unless you go the aftermarket rod route.

B16B rods will only work with a B16B or B16A crank (if you can get it to work) in a P72 Block or even a B18A/B block---but I'm not sure about that one.