Rex8y

I have lots of questions on what do i need to do a 20b engine swap on my 04 rx8
can i use the same transmission?
Same motor mounts?
What engine wiring do i use?
What ecu do i need?
What are the thing that i need to do a 20b swap on my 04 rx8?
Can someone please help me?

ZumnRx8

Do you have $15,000-$30,000 to spend? If not then you cant, if you do, then you might be able to.

Rex8y

Well next year starting january i will have 10g to spend i can buy the engine for 5g and what else do i need?

expo1

I am going to assume you do not have the mechanical ability to do much of the work yourself. Add another $30,000 to that 10g, plan not to have your car for 6+ months. That is IF you can find someone that has done this swap in your area. The 20B swap is a custom mod, you will need to find someone with a history of doing this type of swap of else it will be a big mess.
keep in mind the 20B was never sold in the USA, the newest engine you will find is over 15 years old and will need a rebuild. You will have to make modifications to the car to fit the engine and get a custom engine management system made.

The below thread is from a member that has done the swap, its a good read.
https://www.rx8club.com/rx-8-multimedia-photo-gallery-6/3-rotor-rx8-engine-bay-progress-196176/

Z0oMzo0m

iTrader: (4)

just leave the car the way it is before it ends up all torn apart and will be a part out car instead! lol

just boost your motor with the 10g's you have...

khronus79

iTrader: (1)

come to FL, bring around 30k, wait a few months and leave with a 20b Rx8.

ZumnRx8

+1 zoom zoom.

fuztupnz

iTrader: (4)

Spend every spare minute between now and when you get the money researching. Look here at the very few 20b builds or any other swap thread. Look at the RX7club for their swap threads (even though it's a different car, there is a lot of knowledge over there about the engine itself). Research shops in your area and shops out of your area. Research where to get the engine, what to have done to it, and who to have do it. Find another means of transportation, I doubt you'll want to daily drive it when it's done. Don't forget to take into account the cost of maintenance and upkeep. Where are you going to get parts. Can a local parts store even get you an oil filter or do you have to use an alternative one?

Once you've researched everything to death, then think about the money. Will it be enough to cover everything you looked into? Will you have enough left over to keep the car running?

Even if you did everything yourself, 10k won't get you very far.

An FD tranny is a little more stout than the 8's and will bolt up to a 20b. Depending on your build, it most likely won't hold up though. Look into getting a T56. You'll need a custom bell housing and drive shaft. You'll also need stronger axles if not a whole new rear end.
You'll need custom motor mounts.
Most of your wiring will be spliced or completely from scratch
You'll need a stand-alone engine management

Rex8y

Thankx alot guys sounds like i need to expend alot more money than i though am just going to go turbo
and i really apriciate you guys trying to help me
and whats the most i can get out and what kinda turbo can i get for my 8?

ZumnRx8

/thread

dozer

iTrader: (3)

.....

does the search function not work anymore?

fuztupnz

iTrader: (4)

I'll just quote what i said earlier.

fuztupnz

iTrader: (4)

just noticed your sig Zumn. Congrats on the vert!. Since this thread is obviously and "no search" zone, do you have any pics? I have a soft spot for verts.

yiksing

Just do a v8 swap

ZumnRx8