Hey guys I have been researching 20B's using porsche transmissions for a little bit now. I want a little over 500 HP at the crank. I hear 450 is possible with the stock twins and a boost controller. Is this true? I was thinking of a street port combined with the boost controller. Would this get me to my goal? If so about how much would I need to get it running with all of this. I know I should get a new ecu, rebuild kit, and boost controller. What else is needed to get it running?

 

http://fc3spro.com/TECH/SWAP/COSMO/20b.html
https://www.rx7club.com/search.php

-Destin

 

Destin, you're friends with Niel, right? I've heard all about you from him and your car sounds like it's awesome. I look foreward to meeting you when you get out here.

 

good call headly

 

This type of question has been posted before ; how much i need to do this or that , what do i need to run XXXhp.

The best answer for you is to research and find the best combination for yourself. Some things might work so others but not for you . The 20B is a Big Boy engine , it can spin a T51Kai or T88 with ease .. the stock twins would be good but it would limit the engine higher up in the rpm. Just a hint , the stock turbos don't have much efficiency after a bar of boost . What transmission are you going with ? the porsche's G50 ? you would been a new bellhouse , just to reminder

all in all , it is up to you on how and when your monster come out ...

 

I thought kennedy engineering made a bellhousing adapter for rotaries? or would that not work?

 

Kennedy makes both an adapter and flywheel for mating the rotary engine to a Porsche transmission. You have to keep the flywheel counterweight from the automatic that was on the 20b though.

sehnsucht_musik: What car are you putting one in? 914? 911? Kit Car? What transmission were you thinking of? We had someone else recently ask for a friend about putting a 20b into a 914. Is this you?

 

My car is going to be a kit car soloracer. I am not sure which porsche transmission I was going to use, because I want to spend the least amount I can, but still have the tranny hold up under that amount of power. Yes I have contacted Kennedy engineering and that is what they provide. That isnt me, but I have seen that post before and read through it.