Hello everyone,

I’m Will and I own a 1988 Mazda RX7(chassis). Currently, I’m working on the restoration of the car and plan to place a 20B(three rotary) engine with sequential transmission.

I will like to connect with individuals who have experience in building 20B engines, sequential transmissions, restoration, custom wiring, and painting.

The reason is this is my dream car and I will like to learn how to build the 20B engine on my own by putting it together other with guidance of experienced people, mechanics, and tuners of course.

the goal is to have a street legal car that is 1500 horse power on the rear wheels with single turbo(if possible). I have researched a little bit upon the bridge port and decided to go with semi-p port.

I also looked up the irons but I’m confused on specially what I need to get and how to set up the block. I know I need the 20B front iron, the intermediate center(thin), center(thick), and 20B rear. However I seen videos on YouTube where you can use a 13B rotary housings to make a 20B? Confusing.

if anyone can provide me insight on what irons I need from front to back for the 20B, it will be very much appreciated!

Thanks for reading!

Regards,

William

 

Welcome to the forum!! Would love to see pictures of the car and would love to see a build thread on the car in the 2nd gen section!!

 

Welcome to forum. Just buy a complete 20b engine to start with and then you have everything that you need . 1500 hp i dont think so

 

Thanks for the welcoming everyone!

Here are pictures of my car:




Rear view of my 1988 Mazda RX7 (FC turbo 2 - non turbo)

Front view

Side view Update: Bought parts and soon will be working on restoration.

 

Looks like a very solid project!! Did the car start out life as a TII?

 

Welcome to the forum. My very first car was a 1988 Mazda RX-7. Good luck with the build! I hope you make a build post so we can follow

 

welcome to the forum. u could post a build thread here if u would like to share the progress.

https://www.rx7club.com/build-threads-294/

excellent use of the curb. i would have done the same thing.

 

Hi thanks for your question. Yes, I bought just like this as you seen in the photos!

This chassis isn’t the version with the turbo rotary engine. You can tell by two factors, the color red(non turbo) and white(turbo), also by looking at the vin#, there is a distinct 1(non turbo) and 2(turbo) to differentiate the both versions of the turbo 2 chassis.

I bought the actually turbo 2(white version) but I couldn’t save it as it was salvage with no title, so I decided to strip all I parts I could that good and intact to use on this build, and have it sent back.

fortunately for me thought when I bought the RX7(my red one) it came with a turbo 13B FC engine. When I check it and look at the block, rotors, it was good but you can tell soon it’ll be gone.

My friend has a technica Japanese edition and wanted to place a rotary because here in PR there was a drag race between a rotary technica and RX7, thus it got gapped.

so I sold him the engine for 5k with the blower as he wanted it. The intercooler kit, etc I sold it cheap.

 

Awesome! Any great places to find parts? Absolutely, I will upload progress of the project 20B!

 

Thanks for the welcome and the link! Yeah I definitely had to use the curb for lift support for the RX7. I could put it up on my car port but because of the incline, it will not be safe.