I was thinking of a NA ITB 20B motor for my FC

I live in the middle of no where with no appreciation for the rotary... I am a lone gunman.. building and tuning my own rotary's

the 20B being so rare and unique is next to impossible to find..

if any do end up in the dubai port(about a 1000km's from me) they get scooped up very quickly to be sold for huge profits to the americans

so i'm stuck with mostly 2 rotor motors..

I have a couple REWs, a couple 13bt's and a Cosmo RE (bought this one accidently when i was promised a 3 rotor doh)


anyway.. so the chances of me finding and shipping a 3 rotor half way around the world makes it mad expensive.. (5k for a stock motor, and around another 2k to ship it)


so I was thinking.. to assemble a 3 rotor shortblock from all the parts I have laying around..


all I would need that's 20B specific... would be the E-shaft, center plate, and the oil pan correct?

front and rear and inter. housing can be from the RE cosmo, flywheel and back will be Turbo II or FD (i have a spare of both) I have plenty of Rotors laying around of various letter codes.. finding 3 with 2 letter stamps and same compression shouldn't be a problem... otherwise there's the RX8 high compression route as well... housings can be FD's or S5 or RE's

front cover will be the S4, with OMP blocked off running premix.


everything else I could basically re-cycle from my other spare motors and then purchase and setup the ITB setup after that..



is my assumptions correct? or am I missing a major component to the equation?

 

Your right in some areas, and need a little more info on the others. The Re front rear, and center can be used. However they all will need machining for the larger tension bolts. Two locations on the rear and center. Alot on the front will need to machined period to accept the tension bolts. Then yes, a E-shaft, fat plate, oil pan, oil pickup is all that is left. 13B-rew rotor housings, and have those machined for the larger bolts too. Then just 3 FD or RE or N/a rotors. Lastly none of the 13b flywheels will work, wrong counterweight and location. You will have to get a lightweight flywheel. And then your ready!

 

If you get serious about buying a longblock or all the need 20B parts needed to build an engine with what you already have, pm me.. I have those parts..

 

Thanks for the info guys..

I didn't realize there was differences in the irons as well..


Don't worry Japan2LA I know u're the goto guy for the 20B parts!

 

have you thought about going the short crank?

http://www.kiwi-re.com/wwd_showroom_cat10_1.php

NZ$5,500 for the whole kit. Maybe you could get it cheaper through precision engineering?