Just wondering what everyone thinks of this? It looks like it will end again without a bidder. Is it worth $3k?? I might make a personal offer if anyone is interested. If so shoot me an email or hit me up on AIM, sillbeer. destinhinton@hotmail.com

-Destin

 

I'm buying my engine today..

But will like to see some more info about this engine.

 

I completely spaced out and forgot to put the link in.

http://page6.auctions.yahoo.co.jp/jp/auction/f26867808

-Destin

 

Also this is a 20G, not a 20B.

-Destin

 

YSF

 

Looks like N/A engine..

 

20G..............??? Yeah right

Read the text girls. Its a 13G

This is an amazingly good price for a factory race engine. Those cast PP rotor housings are worth around US$3000 each new.

Note the position of the leading plugs. They are cast a little higher & a few degrees closer to the trailing plugs. Better power this way.

The 13G is used primarily for racing where the 20B was the production 3-rotor.

REgards

 

Tempted to buy.....

 

Well it is a 3 rotor so it would be a 20g right? You even said so yourself that it was the race version of the 20b. It is 2.0L right? Or am I just missing something.....

-Destin

 

"Doh!!!"

You sure are missing something, there is no such thing in any of Mazda's history for a 20G rotary engine.

The factory race engine was called the 13G
The production version was called the 20B

Its as simple as that.

If you wish to fantasize about making your own designation I can't stop you but in the intrests of accuracy, thats why I post these so (smart) people can learn more & become educated rotorheads.........

 

Mazdaspeed Motorsports Development USA (formerly Mazda Motorsports USA) calls the most current version of their 3-rotor pp race engine a "20B Race" or "20B Factory Race" engine. They use the term "20B (Cosmo)" to describe the 20B-REW. They use the term "20B" to describe parts for both the Race and Cosmo engine collectively, as far as I can tell. The "13G" is out of production.

The text says "13G (?)", which would imply to me that they don't know what it is. It could be a Mazda factory 20B "Race" engine, but I don't have the background to tell the difference just by looking at it, if there is any. The housings are at least factory pp housings of some type. Also, the text says that there is no eccentric shaft, flywheel, water pump, etc., so I would call this a collection of used parts rather than an "engine". One thing to note is that this engine is going to be set up for a dry sump oil system ($$$), so any prospective buyers may want to take that into account when working out a budget for this project.

We can get them for much less than that in the US. Unfortunately, I am not at liberty to quote prices. Those who are interested in price quotes can sign up for the Team Support program.
http://www.mazdamotorsports.com/weba...et/TeamSupport

See the rotors near the bottom of the page. Click on 20B and 13G:
http://rotary.a-spec.ca/

 

Mate, I knew about the 20B race engine, just didn't want to confuse the lost soul too much. Thought it better to keep it simple as he was already having enough trouble with the name.

Having seen about 3 genuine 13G engines before, it has all the appearences of a genuine 13G, even if the advert stated "?" it wouldn't stop it from being a 13G

Now the factory race PP housing price sure sounds tempting. Mazda Australia have a good reputation for ripping us off..............

 

Evil, coolant seals.

Craig's Rotary Page must be spinning in its grave. http://cp_www.tripod.com/rotary/pg19.htm

 

That's great and all, but I don't see anything in those articles that would identify a 13B vs. a 20B Race engine based on the pictures posted on the Ebay advertisement.

 

Thanks for schooling me on this guys. Either way, if it's a 20b race engine or 13g it's cool none the less. The middle rotor being low on compression. Is that because of wear on the rotor housing? Can that be fixed? With whats in the auction could 1 just transfer all my parts over from my motor, rotors, e shaft, oil pan, etc....or are these setup to only accept a dry sump? Seeing as it was setup to be NA how would it work with force induction? Just entertaining the idea of making an offer seeing as it is relisted again.

-Destin

 

Well I just answered my question. He posted a yahoo photo album on the auction. He compared the rotor housings to a normal production housing.


-Destin

 

Oh, I didn't even click on that link, lol. Well, it looks like 13G parts.

20B Race = parts you can actually use with current production Mazda parts.
13G = very expensive historic/vintage race engine, or nice museum piece.

 

Just as a clarification, we can't get 13G housings in the US anymore. However, the 20B Race housings are still available, as well as other 20B Race engine parts.