Been speaking to the team @ www.acostamotorsports.com about a 20B conversion for the 8.

Since my car is rhd, i thought it wouldn't be possible but i was wrong.
Thinking my car being an auto was also a problem, i was informed that, even the paddleshifts on the steering wheel would work as normal. :D How much fun that would be!

Just trying to work out in my head how sick i wanna go with this car. It would be a great project i guess.

What do u guys/gals think?

Would a tamer s/c befit the car better?

Is 6-900+ hp abit much for this car?

thanks for your views

 

You must have a lot of money.

 

I don't think your automatic tranny can handle the extra power from the 20B. I've never driven a car equipped with a 20B before, so I don't know if it revs higher than the 4 port RENESIS; hence why the 6 port high powered RENESIS isn't equipped with the auto. Can somebody confirm this about the 20B?

 

I assume a transmission also comes with the deal.

600-900hp would probably be fine with the car as long as all the drivetrain components were upgraded. The question is how streetable would it be? Being an automatic would help make it easier to adjust for basic street takeoffs without any trouble, but you'd definitely have to be careful with the throttle.

 

I believe you hit redline at 8500rpm on the 20b.

 

I suggest you go on Nopistons.com they should be able to give you alot of info, post this under the 20 b forum.

 

are you ready to spend another $30K?

and reallly you'll never be up in the HP range that they have especially seen NO ONE has seen that thing actually reach it anyway...it is all 'in theory' probably because the engine would blow up from their mods

besides if you are driving the automatic now...having a 4speed automatic (if that is what you stick with) would seriously be a JOKE with a 20b (not auto bashing...just reality is a knocking here)

 

Your Auto trans would implode with a 20B, let alone fitting the unit in the engine bay.
ALL warranty would be void also.
You would have to go to manual trans.

I would say you have more money than cents.

 

if you have $35k go fo it. just dont expect it to be a daily driver. ash8 he wouldnt have to go to a manual. just a different auto

 

That is alot of money but the power potential is very high. I don't know why someone said that a 20B would blow up with that much power. They can do it. This obviously isn't a practical conversion. It would be very cool but is much more intensive than just swapping engines. You're going to pay thousands for the engine and then they'll probably want to pull it apart to rebuild/port it. I can see nearly $10000 in the engine alone although it could be done for much cheaper than this. You will need a new standalone ecu which will bypass the factory ecu entirely. You'll lose emissions ability this way. The auto transmission can also not handle this power so you'll need to address this area too. The engine will most certainly fit the engine bay so that isn't an issue. You'll also need a custom exhaust, intake, ignition system, etc... This is not cheap or straight forward. Also consider that you don't have a wide enough tire to get the power down. If you get too wide you might need a body kit. See where this is going?

The end result could be that you now have a $60,000 RX-8 that has 500+ hp, gets 12 mpg, and can't pass emissions. If you can live with this then I say go for it. It would be fun.

 

I thought April 1st has come and gone already...

 

Your right on the money! I called up Acosta and they quoted me 60k for the entire build with suspension and everything else that needs to be done.

Maybe he should wait and try to get his hands on a 3 rotor Renisis, I read that Mazda was going to race this engine in the Le Mans. Wonder what kind of power that would put out?

 

:D

 

"The end result could be that you now have a $60,000 RX-8 that has 500+ hp, gets 12 mpg, and can't pass emissions. If you can live with this then I say go for it. It would be fun.",

i have a $34,000 RX-8 that has 238 hp, gets 12 mpg, and probably cant pass emissions. just playing,


the 20b conversion would be cool. I say dont knock the dude, if you got the cash to blow, do it. takes some pics and i wanna see a dyno run

 

"having a 4speed automatic (if that is what you stick with) would seriously be a JOKE with a 20b (not auto bashing...just reality is a knocking here)"
Remember muscle cars/drag cars are usually 3 and 4spd autos--the LS1 Z28s/Trans Ams/Corvettes use 4spd autos and they are pretty desireable for the drag setup. Even still with this application the tranny would have to be rebuilt-whether it was auto or manual. With all that said--I would switch to manual tranny at this point just for the driving fun.

 

The problem isn't so much that there is an auto tranny in the car as it is the auto tranny that is already in the car is wimpy. There are lots of autos that can handle the power. Just not this one.

 

There is no 3 rotor Renesis. The term Renesis was only used since that is what the current rotary engine is called. The new 3 rotor race engine is actually an old 13G based all peripheral port engine. No new all side port 3 rotor.

 

Are you sure about that RG?

https://www.rx8club.com/general-automotive-49/return-3-rotor-racing-rotary-new-20b-renesis-announced-55900/

http://biz.yahoo.com/prnews/050318/laf037_3.html

There appears to be evidence that says otherwise...

 

Damn you know how to ruin a good ending! :p


Well, you think they'll ever make it, or is it to little use because of the way it's ported?

 

lemme just daydream about a 3 rotor renesis for a minute... forget the aux ports--it'd cost too much to make a production 3 rotor capable of 9k rpm's... just a nice 6 port (total) spinning up to 7k or 7500rpm's would be nice. put maybe 260-280 to the wheels and you'll have fun.

ok i'm done... i know it most likely won't ever happen due to cost reasons, but it sure would make me happy.

 

It is actually the other way around: given the 20B's nature of producing a healthier amount of tq down low -when compared to the 13B-MSP- is makes some sense. At least more sense than with the current setup. Not my cup of tea, but probably his.

 

Sadly he is correct.... but I'm not going to complain, at least the 3 rotor is coming back.

http://rotarynews.com/node/view/564#comment

 

Oh well... it was a nice thought.

 

now when they say "based", obviously they're not talking about side ports.

so what's different about the renesis?

we've got the rotors--they're lighter and cast more consistantly. the bevels are meaningless for a pp engine, but whatever.

the rotor housings are made differently. someone's gonna have to fill in the blank on that one because i'm not totally sure on HOW they're different, but something with the manufacturing, anyway.

the irons.... well, they're lighter-they got rid of material they didn't need, but if this is a truely PP design, they might have made an entire new set of irons--in which case, they could be thinner because they wouldn't have to be as wide as the port runner.

can anyone scrounge up any pics of the "new" 20b?