dum ass question
 

can u use parts from a 13b to make a 3 rotar??

yes... rotors, rotor housings, rear and middle irons, maybe oil pump.

oh yeah....with a custom Eshaft....

THAT would be the most important part :D

that and the really thick forward center iron..

Simple question, very simplified answer.

Yes. The 20B is just 1.5 13B's. Considering you're asking, that's enough information because you won't be touching a 20B anytime soon (at least I hope so).

i'm asking cuz i have 2 13bs and i would like to try to make one. is there a site or something like that you guys can forword me to?

i got this from a friend. he says they do great work - http://kiwi-re.com/wwd_showroom_cat1_1.php

I think if you have to ask, it is way, WAY, WWWWAAAAAAYYYYYYY beyond your capabilities. I know and have the parts and it is WAY beyond my own capabilities. Invest your time and money to more realistic areas.

B

Im with this guy

If you have 2 13b, rebuild both, use one.... and keep the other handy

S5 NA rotors. They are high compression.