donnybrasco

hey everyone. I've been thinking about this idea of building a ctr spec engine using a b20 block. Has anyone else tried this?

grumblemarc

iTrader: (4)

Why?

kyden

what's the point?

m_shake

I always wanted to do this but with a b17 crank.

donnybrasco

mainly just to try something different and see what happens. The engine would be a 1.7L with 1.84 rod/stroke ratio. So theoretically you could rev up to 9000 without a problem and still be reliable. I haven't heard of anyone doing this so I thought I would do it to see what the results may be.

m_shake

Make it happen!

doood

iTrader: (1)

it would be basically like boring a b16b to 84mm. THAT has been done.

grumblemarc

iTrader: (4)

Honda and Different is an oxymoron.
Just do it and report back. Be a pioneer lie back in the day. Don't post until you actually have done it.

Seen too many post up and never follow through. Just talk.

kyden

a) you'll need custom rods. (or ctr I guess).

b) you still have the weaker sleeve setup of the b20.

c) it's just easier and more reliable to do an 84mm b16.

spAdam

iTrader: (1)

Lower piston speeds + big bore = mediocre cylinder filling. An 84mm b16 might actually have a more usable power band. I would imagine you would have to rev the living **** out of it before it really starts to breathe.

More experienced builders/designers, feel free to correct me on that with some quantitative reasoning

I toyed around with this idea a few years ago... but the more proper books I read on the subject, the more I talked myself out of it.