Ls vtec question

CRXFreak · Post by **CRXFreak** » Thu Apr 24, 2008 10:51 pm

Will a b16 vtec crankshaft fit the b18a?

Waffles · Post by **Waffles** » Thu Apr 24, 2008 10:51 pm

CRXFreak;111325 wrote:Will a b16 vtec crankshaft fit the b18a?

No

CRXFreak · Post by **CRXFreak** » Thu Apr 24, 2008 10:54 pm

ok thanks

Spork · Post by **Spork** » Thu Apr 24, 2008 11:46 pm

well.... technically it will, but you will get a shorter stroke... you would basically be putting together a gsr motor if you did that, except worse.

Waffles · Post by **Waffles** » Thu Apr 24, 2008 11:52 pm

Spork;111354 wrote:well.... technically it will, but you will get a shorter stroke... you would basically be putting together a gsr motor if you did that.

Your right it will "fit" as in it will bolt up. But the b16 has a deck height of 203.37 mm and the b18 is 211.84 mm. With the shorter stroke and the taller deck height you would be making a way to low CR for the engine to even run.

There is alot of good internal swapping info here:
http://www.team-integra.net/sections/ar ... ticleID=22

Native · Post by **Native** » Fri Apr 25, 2008 3:22 am

lol i wonder if you did this internal swap for lower comp if you could use it for a boost application? but maybe that would be too much of a waste. lol just kickin the idea haha.

oh well

im thinking it would be a quicker motor than one with a longer stroke. but then you would loose torque. B series motors are so crazy. wish i had some spare motor parts to play with.

Spork · Post by **Spork** » Fri Apr 25, 2008 3:35 am

btlfedgolf;111359 wrote:Your right it will "fit" as in it will bolt up. But the b16 has a deck height of 203.37 mm and the b18 is 211.84 mm. With the shorter stroke and the taller deck height you would be making a way to low CR for the engine to even run.

There is alot of good internal swapping info here:
http://www.team-integra.net/sections/ar ... ticleID=22

he just said crank.... sure, if you swap in the rods and pistons as well, you will get too low of a compression ratio to do anything...