anyone have the stroke numbers on the oldschool and not so oldschool d series engines? such as the d14 and d13(there was a d13 right?) but i'd imagine those cranks would be hard to find. so how about the rod lengths of various rods that can be put on the d15 or d16 crank, the d16 stroke is 90mm and the d15b2 is 84.5 just any posts of any b series rod lengths would rock thanks!


B16B rod length is 144mm (or its 136mm in that case its 1.51) that would be a 1.6 r/s...not too bad

hrm...6.32 inch rod length or 158mm...either way that seems long...but it would yield a 10.66:1 compression ratio
[Modified by altoid, 11:44 PM 1/26/2003]


[Modified by altoid, 11:55 PM 1/26/2003]

 

i thought the b16a and b16b had the same rod/stroke combo...isnt it basically the same motor, except the head and compression?

 

i dunno, not according to https://honda-tech.com/zerothread?id=264714 but it is all jumbled up and can't quite tell

 

if we could get a rod of 155-160mm thats pretty darn good. perfection is 158mm

 

I think you are mistaken about the 158mm rod lengths. The rods from a D16 are 137mm, so a rod that is 158mm long wouldn't fit in a D16 without a custom crank with a 70mm stroke (D16's have a 90mm stroke) to make up for the ~20mm difference in the rod length. You can't just add longer rods to give the motor a better r/s ratio. It also involves changing the stroke as well.

 

alright

 

One of the best ratio's for a D16 would be 141mm custom rods with a custom crank with 82mm stroke. This would give a r/s ratio of 1.72. It would probably expensive to make because the parts would have to be custom. But do you see how it works? If I lengthen the rods but 4mm's, then I would have to shorten the stroke by 8mm's.

 

indeed i do, thanks

 

ok the b16a and the b16b has the same stroke...check it...

http://www.inlinefour.com/spoon18lstro.html
http://www.c-speedracing.com/howto/c...c/compcalc.php

 

the b16b is a destroked b18cR block.

Edit: that c-speed link contradicts that, but I've read it here a ton of times. oh well.


[Modified by ricodemus, 8:42 AM 1/31/2003]