Hello. I have read many post by the club, but by time and ignorance of many things, I have found no definitive post about how to make a 20b. The issue is that in the end we're going to shoot pool and we will transform the street 8 100% in circuit. So I got another engine to rebuild with low compression, and mount a motor 20b. I know there are websites that sell parts, etc.. but wanted to know if you can make a crankshaft for 3 rotors, or have to buy fact, if someone has done it already, and so on. Also if you can make an admission by ITB's, or rather an admission to a regular filter and electronica, etc. Thanks and regards.

 

You cannot make a 2 rotor Renesis into a 3 rotor 20B. If that is what you are asking. And mounting a 20B into an RX-8 will run you around $20,000.00 conservatively.

 

pm bse50 on the forum here. I'm guessing that you're in europe, so he'd be a good connection for you to have. He makes this stuff on the side in his garage. Hopefully he can help you out.

 

Ok, thank you, to see if I can contact. Indeed I am in Europe. Greetings.

 

Where are you from dani rs?

 

Spain.

 

I know of 3 Renesis 3 rotor engines. 2 of them were built by Pineapple Racing. Not much detail on any of the builds so there would be a lot of trial and error to get it to work.

Your best best is to buy a 20b. The $20k 9k mentioned assumes you have the ability to do the majority of the work. If you do not then expect to double the cost.

 

Not to say you're wrong, but you have to realize that 90% of these jobs, they go all out as far as power requirements . I have yet to see a 3-rotor rx8 under 480HP. If you dont have massive power requirement, fabrication will be your biggest cost. If you keep the stock 20B, stock ecu, STOCK GAUGES from the Cosmo (i wouldnt want to do that), you price would be lower, but the build qulaity would be as well.

As a sidenote, I was talking with Tito in San Antonio about his rx8. His custom manifolds/piping were the most expensive. Completely custom work with no shortcuts. If you were passive and were not concerned with making BIG power, your manifold design & spacing for design would be different than his.

 

Not sure what point you are trying to make.

 

I'm trying to say to simply put a 20B in an rx8 doesn't have cost 20k. It just depends on your goals. Every 20b rx8 I've seen has no less than 480 hp. That contributes to alot of that price.

 

I would never assume anyone investing this much in a build is going to leave anything stock. Everything is relative to each individuals skills, wallet and goals. Who knows how much it will cost. 99% of the people who talk about this never do it.

 

yeah you're right about that. If I were to do it I would leave most of the engine stock. Just rebuilt turbo's and taller apex seals, I wouldnt even do a street port.

 

I've actually been trying to convince my boss to do a 3-rotor, awd vehicle. Prefereably an RX8 because I like the body style. He does alot of frankenstein cars in his garage.