Rx7_Nut13B

iTrader: (1)

I think if they put a ceramic coating on the faces of these rotors and then just did a minimum oil passage then I think they could work with road race or extreme street usage.

Here is the idea so you can drill the passages without getting two expensive. Just a ruff draft. If you drill them about every 1in all the way around that should be enough to keep them cool in everyday usage.

Chaotic_FC

Has anybody tried these rotors in an N/A application yet?

OneRotor

iTrader: (3)

they just ran the first run down the strip, i highly doubt that anyone outside E&J has gotten their hands on these.

To the guys that are working on this: THANK YOU. As a poor college student, this gives me more motivation to get done and get a job so I can start buying your parts to make your troubles worth while. This is a huge advancement in rotary technology, and hopefully this will allow street driven rotaries to have aluminum rotors. Good luck with the R&D.

To the guy that posted above about ceramic coating the rotor faces, I was thinking of the same thing to insulate the aluminum rotor from the heat of the combustion process. This could also shield the aluminum from the caustic effects of alcohol and allow people to run E85 with these rotors to combat the heat problem. Looking forward to the next steps.

timemachines

hey guys the car was taken back t the track today first pass 8.3's and 2nd 3rd 7.9's hopefully i get the video tommorow after the passes they found that the alternator was bad

ultimatejay

iTrader: (1)

Sweet, great numbers so far. Keep up the good work, can't wait to see the vids.

crispeed

Ok the 2nd and 3rd pass was indeed in the 7.90's with a 7.99 and 7.95 both at 172mph. On the 3rd run the car experienced tire shake resulting in the starter wire dislodging from the starter and ending the night early.

BLUE TII

iTrader: (9)

If all one wanted was the oil passages it seems like you could machine the rotor out of two pieces. The gear/ bearing side and rotor faces and then press in the other rotor side (hint, the whole side doesn't have to press in just a circular portion that completes it).

With the gear and bearing attached to the side including the rotor faces are there strong enough forces to cause the pressed in side to walk out?

Next, you have the problem of hardening the apex seal and corner seal grooves.

When Mazda made aluminum rotors for the 1985 3 rotor MX-03 prototype car they cast the aluminum rotor around cast iron apex and corner seal slots. Perhaps you could press cast iron pieces into a billet rotor (from the side dovetailed in so centripetal force doesn't eject it) or try modern coating technologies coupled with more modern ceramic seals than Mazda was using.

Mazda found the side seal slots machined right into the aluminum worked just fine due to the lower kinetic and thermal loads on these seals.

eastcoastparts

iTrader: (1)

Thank you for the coments. About the ceramic coating, we are looking for a coating but we dont feel ceramic will work. The problem can come from the expansion rate. ceramic does not expand and aluminum does and this would cause the ceramic to come off.

For those who want the oil passages. Why? I would like to start by letting every one now that the oil passages are there for two reason one is steel and second weight. Steel need more cooling because of the material, steel get hot and stays hot.
Our first design was a split set up but at high rpm things like to come apart. so we decided to go another way.

Now about mazda and there aluminum rotor. Please send me this info. for the reason that i have not seen it. we have ask every one and no answer. You can send this info to enjauto@bellsouth.net

We appologize if we come out a bit strong but we have been doing research and trying to get this product to perform to it best. The price is bit high right now but trust me we are working on the price. We love all the racing venues but our final goal on this product is the fuel economy. Imagine the rx8 with more horsepower and better gas milage.

thank you
Edgar Perez

thank you

helghast7

iTrader: (6)

i believe the only reason people were talking about oil passages was because those people want these rotors for more street/road racing where the engine has to last more then that 10 second or less of stress..

but if your saying what i think your saying in the end of your post, then i think that we wont have to worry about that anymore since it seems like you have it covered already, which is a great thing

i wish you guys the best of luck and i know i speak for everyone when i say that i hope you get great results with all your tests in all the areas that these rotors have to perform in.

i cant wait for the end results

streetRx7

iTrader: (5)

WOW just WOW keep up the good work ..

eastcoastparts

iTrader: (1)

It was another good day at the track. here are some videos from our testing.
http://www.youtube.com/user/enjauto


We just want to thank everyone for there support. It means alot to us. Our goal is to get them for every day street use. We believe that if we can get them to perfom under high stress like we do on the drag strip. we can get them to work on any application. Our next big test will be on a gasoline engine and we hope to be testing at the Homestead Speed way.

Thank you and enjoy the videos

Edgar Perez
president
E&J Autoworks

13B-RX3

iTrader: (2)

Congrats Edgar and the whole crew. The car sounds great an it is getting faster with every pass!!!!

tearbo2

iTrader: (2)

damm guys you got alot more left in it, you left at least 2 tenths 3tenths at the front WOW !!!!!

ultimatejay

iTrader: (1)

Awesome runs. Engine sounds and runs really good. What was the boost on the 7.9 passes?

crispeed

27psi.

C. Ludwig

iTrader: (27)

Again, congrats to the entire team on continually forging ahead. Have you guys looked into a patent? Even though the idea has been tried before your changes that seem to be working need to be protected.

junito1

^^ i agree.

eastcoastparts

iTrader: (1)

We will be attending the PRI convention in Orlando Florida from Thursday 12-11 to Sat. 12-13. If you would like to visit with us, we will be at the Speed and Custom booth 2957 from 10 am till 12 pm and at the Dyno dynamics booth 4787 form 3 pm till 4 pm every day. We will have some of our products with us including our billet rotor. Our car should be available for some exhibition passes on Friday and Saturday at the dyno dynamics dyno and we will be attending battle of the imports at the Orlando speedway on Sunday 12-14. please come and visit with us.

See you all there

enzo250

Can i come by and say hi?

turboR1

lol, that might be too far a walk for you.

ultimatejay

iTrader: (1)

Too bad I'm all the way in Cali. Are there any plans to try your rotors in an N/A all motor application any time soon? Also, are you planning on making any 12a rotors?

eastcoastparts

iTrader: (1)

At this time we have another set of rotors that are going in a N/A application. We hope to have this done in the middle of january. About the 12A, Yes with 2mm seals (ALS).

streetRx7

iTrader: (5)

+1

Chaotic_FC

what compression ratio is going to be used for the N/A rotors?

Trots*88TII-AE*

iTrader: (11)

^