Project_SOHC_EX

Just as the post says can this be done or better yet can the B16b crankshaft be used in a B16a3 USDM shortblock?

Reasoning:
If the B18C1 can be used(of course that would require decking the block and custom rods for the app correct)?
Lastly if the B16b crankshaft will work I wonder what gains I will see off such a setup.

JDMorgan

b16b has the same deck height as a b18/b20. it is a destroked itr motor. i think the ctr(b16b) crank will work in a b16a using the b16a rods but no gains will be found. if there is any differance i would think it would be in the counter weights. if you want to use the b18c crank you need custom rods or custom pistons and your b16 rods machined. these custom pistons would have the wristpin set higher in them.

Project_SOHC_EX

thanx

Project_SOHC_EX

Anyone else have any info on this type of setup my future plans are to stroke the motor the "right" way if I might. I'm not a fan of boring the hell out my cylinder walls, hence my desire for custom pistons and preferably a B18C5 crank(most likely from Endyn he seems to have a lot of R&D in their pistons and I've never heard any bad comments, but enough of my wants). Please more info on this type of setup.

Sincerely,
Mr. EX

gritsak

you would need to get a deckplate if you wanted to run a b18 crank with b18 rods/pistons to get a 1.8

double0Si

I thought the b18c's had about 1/2 inch taller deck height...

but what do I know...

b16 - 263 mm
b18c - 270 mm

jDMJeRk

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by double0Si &raquo;</TD></TR><TR><TD CLASS="quote">I thought the b18c's had about 1/2 inch taller deck height...

but what do I know...

b16 - 263 mm
b18c - 270 mm

</TD></TR></TABLE>
Thats what I thought; I ordered a itr water pump and I need a timing belt for my b16 and I couldnt use the b18cX timing belts cause the deck height on the b18 blocks were taller thus creating too much slack in the timing belt

Scott - 93HB Si

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by double0Si &raquo;</TD></TR><TR><TD CLASS="quote">

b16 - 263 mm
b18c - 270 mm

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

Yup, you can actually see the difference if you put the 2 blocks side by side.

If you wanna use a GSR/ITR crank in a B16A block you'll need custom pistons that move the wrist pin WAY up on the piston (into the ringlands).

Project_SOHC_EX

If so is this the best way of going about making a 1.6 a TRUE 1.8 or is it more cost effective and just as proven to just bore the 1.6&gt;1.8 and rn sleeves. I'm confused because I would think that after making a motor 1.8 why not run the appropriate 1.8 crank and stroke the motor the right way. Opinions???

NJIN BUILDR

Unless your resticted by class rules to use the b16 block anything your going to do is going to cost more than building a b18a,b or c.Stroking the b16 just gives you a worse rod ratio that reduces performance and puts more stress on the cylinder walls.Sleeving it still only gets you less than 1.8l and costs lots more than a b18c short block.
Glenn

JDMorgan

was reffering to y he could not use b16b rods in his b16a. the reason the b16A block is shorter than the b18/b20 block. HOWEVER the b16b block has the same deck height as the b18a/b/c and b20.
now you can keep b16 r/s with a b18c crank as long as you buy the custom pistons. the pistons have the wristpin placed higher in them. I HAVE heard of people using b18a cranks aswell however i believe you need to either buy custom rods or machine the rods to use a smaller wristpin. i believe the new style pistons that are used for the b18c crank, b16a rods uses this smaller wristpin aswell.

Scott - 93HB Si

I have seen some custom pistons that actually move the wrist pin up A LOT (into the oil ring area. This allows you to run a B18B crank (with stock rods) in a B16A block, giving you a "True" 1.8L in a B16A.

If you're getting custom pistons anways, you might wanna look into this....

JDMorgan

y dont people use b18a/b crank with b17 rods. you would still need custom pistons but im sure you could use stock wristpin. just a thought.