Mazda has announced a return to top level racing, and will be building and supplying an all-new, Renesis-based 20B 3 rotor engine for the LMP-2 class of the American Le Mans Series!

Details in this announcement (http://biz.yahoo.com/prnews/050318/laf037_3.html)

The 2 litre, 3 rotor 20B Renesis is expected to put out over 400 hp. Forget the 13B, imagine getting one of these new 20B Renesis engines to drop into an RX-8 ...! :eek: :cool:

Regards,
Gordon

Huge news!!!! Suh-weet. Now we know what may be going in an RX-7 or MS RX-8! Imagine 360hp NA stock in an 8.

That's rotorrific!
Now, how do we get one....

I feel giddy as a schoolgirl. :o

Geesh - even if tuning this beast helps MazdaSpeed give the MS8 a solid 100hp with OUR engine, it'd be awesome.

many people on this forum said it was imposible, that mazda was never going to built a 20b renesis.

You know that's kind of interesting, since the RX-8 LM race car in GT4 has a 3-rotor engine, but has Renesis plastered all over the exterior of the car. I thought it was a mistake, but perhaps it isn't.:cool:

maybe speedsource can put that engine in one of their cars an race in GS.

"On any given weekend, there are more Mazdas on the road-race tracks of America than any other brand of vehicle. Mazda's motorsport involvement even extends to the nation's premier road-racing circuit, Mazda Raceway Laguna Seca."

But, but how can the middle rotor be a side port??

Vince

Now if they put that in the 8 that would give the new corvette a run for its money. Still would put corvette on top but it would be a good race. :D

Props to Jim Medered (RB), Tremblay and Haskell!!! You kept that one very quiet guys!

Hopefully, the car will kick some ass. That's what I'm expecting. I'll bet it can beat the corvette.

Props to Jim Medered (RB), Tremblay and Haskell!!! You kept that one very quiet guys!

Yeah Jim Mederer should be able to provide some great accessories for the race car. Just kidding. Do not get on me or I will bite back.

Unfortunately, RN.COM knew of this story quite a while back, but we were not allowed to release details, but here is a little treat for you all:


http://www.rx8club.com/attachment.php?attachmentid=44081

Cheers,

-Bern

If they're taking the renesis into racing, then the rotary may have a new lease on life. Looks like the 7-year plan I talked about elsewhere may be a go. The RX8 has to survive 2005 and 2006 for the RX7 to come out. I think 2005 is critical because I can sense sales falling already. They'll need to minimize damage for 2005. It'a war of attrition starting now.

Yeah Jim Mederer should be able to provide some great accessories for the race car. Just kidding. Do not get on me or I will bite back.
You can probably provide some wording for the stickers :D

Unfortunately, RN.COM knew of this story quite a while back, but we were not allowed to release details, but here is a little treat for you all:


Cheers,

-Bern

That is a beautiful car.

You can probably provide some wording for the stickers :D

The first sticker I have planned is: Think for yourself. Racing Beat.
The second sticker is: We Don't Need You Dummies To Hype Us. Racing Beat.

Damn NDAs... :)

All the same, glad it is public now!

Sweet news!

Unfortunately, RN.COM knew of this story quite a while back, but we were not allowed to release details, but here is a little treat for you all:


http://www.rx8club.com/attachment.php?attachmentid=44081

Cheers,

-Bern
That is the most beautiful car I have ever seen...

Vince

No one ever said a 3 rotor Renesis was impossible to build. It was stated that it was impractial to build for street use though. You'd better start to feel really lucky about your gas mileage now if one does hit the streets.

I think this is great news. I really want to see the port layout. I just can't believe that they'd run the center rotor with a siamesed exhaust port on both sides. I also believe that this will be a 4 port based engine rather than a 6 port based engine. A new center plate with an auxillary port would be difficult. There's no need for it anyways as race engines are built to run within a certain fairly narrow rpm range. Will this be only a side port engine or will it be a combination side/peripheral port? Will it be a bridgeport? Questions, questions, questions... I don't think we'll se the inner layout for a while yet but I hope I'm wrong. A simple picture of it's existence would keep me content for a while.

As cool as this is going to be and as cool as 3 rotor engines sound, nothing sounds more aurally stimulating than the 4 rotor engine in the LeMans winning 787B. That was pure orgasm for the ears!

One thing that scares me about Mazda's return is that they will do too well. This may sound strange but in the past, everytime a rotary would win, they'd restrict it out of competitiveness. Mazda tried for many years to win the 24 hours on LeMans and they actually did in their class in the '80s but the only overall win was in '91. The next year they really restricted the engine no longer allowing variable length intakes and the next year after that the rotary was banned. I know it's back but how long will it be until they restrict it again?

It's good to see some new rotary racing life back in Mazda's blood again.

WHEN is this car supposed to run? i saw the press release on the ALMS website but no mention there? i would hope to see it at the next race in atlanta as that one is sponsored by
SPORTSBOOK.com?

That is the most beautiful car I have ever seen...

Vince

Great news and amazing how they've kept it quiet! Hey, it looks like I've been supporting them indirectly. Sportsbook is my bookie. :)

But, but how can the middle rotor be a side port??

Vince
I don't know for sure, but I imagine each rotor gets its own side plate.

1.3L

As cool as this is going to be and as cool as 3 rotor engines sound, nothing sounds more aurally stimulating than the 4 rotor engine in the LeMans winning 787B. That was pure orgasm for the ears!



any sound clip or videos floating around? :)

I have a huge video from S7...

"On any given weekend, there are more Mazdas on the road-race tracks of America than any other brand of vehicle. Mazda's motorsport involvement even extends to the nation's premier road-racing circuit, Mazda Raceway Laguna Seca."
While your raod racing statement isn't incorrect, it's not altogether true. It's a Miata thing, not neccesarily a Mazda thing. And Laguna Seca whored its name for advertising money. Mazda just happened to be the highest bidder. Mazda has the same "motorsport involvement" in Laguna Seca as 3COM has "NFL involvement" with Candlestick Park. They're simply business relationships.

That wasn't his statement. He got the quote from the rotary news website. Mazda does actually test alot there though. I doubt 3com hangs out at Candlestick Park that much.

Here is a cool CAD drawn picture that was posted in the reply section at rotarynews.com. Not sure where it came from other than it was posted by Dan Mazella. It still looks really cool.

Here is a cool CAD drawn picture that was posted in the reply section at rotarynews.com. Not sure where it came from other than it was posted by Dan Mazella. It still looks really cool.
Does that mean side ports all around??

It should be.

SWEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET :D

hmm i don't even want to guess how much money a 20b-msp would cost, hell i can't even afford a greddy turbo now:( lol sure can't get one of these any time soon.

One more: are those 2 side irons per housing? or just a free interpretation of what the 20B would be like?

I am using this as my model for the old 20B:
http://www.rx8club.com/attachment.php?attachmentid=44455&stc=1

Edit: I just noticed, that thing has 3 13b housings sandwiched.....wrong reference.

Here is a cool CAD drawn picture that was posted in the reply section at rotarynews.com. Not sure where it came from other than it was posted by Dan Mazella. It still looks really cool.
Great post. That's a very helpfull drawing for anybody trying to wrap their brain around the basic concept of rotary engines. Very cool.

It's just a basic interpretation of what it might look like. The 3 rotor in your photo is what it would look like from the top. Don't worry that it says 13B rather than 20B. It is not uncommon for people to rebuild them with 13B housings. The exhaust port sleeves on the 20B are really messed up terms of shape and airflow.

thanks for the drawing RG. That is really cool.

In the 20b photo, why is one of the intermediate side housings larger than the other?

Anyone want to give weight projections for the Renesis 20B? 450lb+? Too heavy?

Don't siamesed ports run hotter? Would that be a problem?

Here is a cool CAD drawn picture that was posted in the reply section at rotarynews.com. Not sure where it came from other than it was posted by Dan Mazella. It still looks really cool.
Ah-ha!

Vince