Racing Beat Aluminum Side housings
 

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https://img204.imageshack.us/img204/...housinghd9.jpg

https://img469.imageshack.us/img469/...umhousejh2.jpg

https://img96.imageshack.us/img96/77...umhouselk8.jpg

I want a set of those....but the bank didn't have enough money in their vault at the time LOL.

Just take out a second mortgage! :)

is it true that they barely even sold a set?

never noticed before, need a few extra bolts for the front and rear gears.
since i cant afford bolts i guess i will cancel my order for those housings.
matt

I can get you a good deal on the bolts. Better yet let's do a group buy! :)


https://img204.imageshack.us/img204/...umhouseou6.jpg

Im all about these housing for lightness purposes but arent they made out of iron because its dispells heat quickly? wouldnt you be overworking our coolant system? How much is a set couldnt find it on the site...

Iron has crappy thermal conductivity. But good absorbtion.

Average of about $1400 per plate (less for the front, more for the inter, and then in the middle for the rear IIRC).

When I called them about these a couple months ago, they would sell me the front and center iron.......but they didn't have the rear available yet.
I guess they have the rear one figure out now.

I believe it was roughly $4000-4500 US for the whole set without side ports milled into them.

Not to mention they would wear like mad. Stock irons are 60+ HRC hardness, aluminum is soft as hell and makes a piss poor wear surface. Now with some ceramic coating :D now that's a different story... Otherwise That $4000-$4500 would quickly becomes coffee table art. You better be makin some big money racing to justify spending that much on a "disposable" part or spend even more to have them coated with some slippery coating.

They are ceramet coated.

Cost is the only reason Mazda stopped using Aluminum in their production engines after the Cosmo Sport (first rotary). They still used aluminum side housings in there race engines.

Before ceramet coatings they used flame sprayed high carbon steel.

Chris,
What are some more advantages to these. I may get them over the winter if you think it would help alot. TIA....
Ernie

It also appears you would need to drill oil passages for the pump. Look at the pic.

for what they charge i would think they would be drilled!

Nope. Sure didn't.

Originally Posted by BLUE TII
They still used aluminum side housings in there race engines.

used

The aluminum sidehousings from the production Cosmo Sport 10A were used in factory racing 10A engines whether in a Cosmo Sport or the 10A powered R100 and RX-3s that were produced with the cast iron sidehousings.

If there was an advantage to using cast iron sidehousings they would have used them.

--------------------------------------------------------

BLUE TII quote- They are ceramet coated.

Cost is the only reason Mazda stopped using Aluminum in their production engines after the Cosmo Sport (first rotary). They still used aluminum side housings in there race engines.

Before ceramet coatings they used flame sprayed high carbon steel.

Was in response to


kuroi FD- Im all about these housing for lightness purposes but arent they made out of iron because its dispells heat quickly? wouldnt you be overworking our coolant system?

Not to mention they would wear like mad. Stock irons are 60+ HRC hardness, aluminum is soft as hell and makes a piss poor wear surface. Now with some ceramic coating now that's a different story... Otherwise That $4000-$4500 would quickly becomes coffee table art. You better be makin some big money racing to justify spending that much on a "disposable" part or spend even more to have them coated with some slippery coating.

Just thought I'd chime in and mention that there's already a thread about these badboys from '03: https://www.rx7club.com/20b-forum-95/rb-aluminum-side-plates-238179/

~Ramy

I've been dreaming about those forever.

No turbo oil feed passages. Couldn't be too hard to drill for one of those...now where did my Makita go?

What I would be worried about is the strength of the dowell areas. They look to be about as thick as S5-S6 housings. Perhaps they were intended for non-turbo/low hp cars.

I hope ErnieT will be the Guinea Pig.

LOL. Man oh man could that be an expensive mistake...

Well I know that at higher rpms, the major concern is housing flex, so I'm not sure how good of an idea these aluminum housings are... ?

+1. Ernie tries everything :D

Not this time!

I can happily say that I'll be purchasing them with in the next year, if avaliable... I 've been drooling over those and other new ceramic advances with full doweling for years... I'll bee contacting racingbeat soon to see if any are avaliable,and to make sure mid-plate can be milled to except roller bearing/2piece eccentric Have plans for a future motor build...wicked kiwi-re short block 4 rotor all plates aluminum, full doweling, dry-sump, ceramics 30+psi yadaayadda... basically my midlife crisis motor build with a 50g price tag.... these toy's are what have driven me to succeed/ make money piles of it... now just feeding the priorities.. in due time....

The dowel area are the same size as the FD's. Plus depending on the technique used in casting and type of aluminum used it can be much stronger than the cast iron used by Mazda.

man i wish i could snag a sponsor ;) one thing to think about would be the wear on these housings. those things look sooo sweet! i love how they put the rb in the front plate :)