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B21a1 bore to a 23 or higher???
Posted: Mon Dec 06, 2010 1:53 pm
by lucci
My b21a1 clearly has a 2.l liter displacement. I was wondering if i have the same engine out of the car how much do i need to bore out of each cylinder to make it a 2.3 liter displacement or higher. how much more power will i get out of it?
Re: B21a1 bore to a 23 or higher???
Posted: Mon Dec 06, 2010 2:49 pm
by spiffyguido
I don't think that you can bore out the B21A1 any at all. The cylinder liners are made of FRM (Fibre Reinforced Metal), which won't respond well to boring. Plus, they're very thin to start with (but very strong).
Re: B21a1 bore to a 23 or higher???
Posted: Wed Dec 08, 2010 3:24 pm
by 91darkness
if you have the money gude.com. I dont know how good of a quality they are though.
http://gude.com/Head/hp.htm#prelude
Here is another company
http://www.jgenginedynamics.com/JGE%20main%20page.html