**STREET TESTING UPDATE**

My little birdie is back again!
Aluminum rotor testing on a 93 FD RX-7 at 505whp running 18psi. have logged just over 600miles and counting. So far everything looks very positive.

 

^ Hell yeah!

 

Pump gas?

 

If so, please specify which type.

Thank you kindly.

 

93octane.

 

What comp ratio with the rotors?

 

sounds promising.. Its pretty amazing to see a bunch of average guys push the envelope further than most big coperations.. Good luck fellas, I know the future will be bright

Btw Chris, I think we need to change your name to Dr Doolittle.. Your ability to speak to birds are the best I've seen

 

cris,

what apex seals?

i too am concerned with the wallowing of the apex slots...

 

I have a pic somewhere I will try and find, but its easy to describe. Its a test rotor from one of the many companies developing wankel engines from the 60's or 70's. Whats special is the rotor tips don't have the apex seals slots machined in, rather there is a seprate apex seal holder which is attached via fastners of some kind to a machined in slot in the rotor.

The idea must of been that if the apex seal slots wear out or are damaged you can replace them without replacing the whole rotor.

Maybe something like this would work well for aluminum rotors.

 

glad to hear that Crispeed, When should we expect an engine dissassembly?

 

What are the rest of the specs on this setup? Ports, Turbo? Additional info would be great, thanks!

 

Interesting idea.. I was thinking about the same concept..

 

We are happy to announce another successful test with our billet rotors. We installed a set of rotors on a 93 with a GT-47, ALS seals and the E&J 4 barrel Throttle body. We were able to produce 505 @ 17 psi of boost with 93 octane gas. The car was driven as a daily drive for over 600 miles with no problems. The motor was taken apart and every thing looked perfect. All of the clearance and all the walls show no sign of stress.
This pics are dedicated to those who said that the rotor would melt and that they would not perform on a street application. This is proof that we should not speak or comment about some thing that's never been done. Nothing in this world is easy and if you don't try, nothing will ever be accomplish. We understand that more testing has to be done and it will be.
At the end of January we will be testing on a road race car and we will provide the result of our test.
thank you all for the support.

Edgar Perez

HERE THE LINK FOR THE PICTURES. http://eastcoastparts.com/html/billet_rotor.html

 

Congratulations Edgar, that is truly an accomplishment. I'm looking forward to seeing more testing done on street and road-race applications!

 

Awesome work guys. Keep it up. I could see ALOT of people shelling out the necessary coin for these once they prove themselves in road-race conditions.

EDIT: Sorry if I missed it elsewhere; are the rotors used in the street application the same compression ratio as the drag?

 

 

 

All that carbon in 600 miles. Gotta love pump gas.

Great job guys! Since so many people are saying these won't work because they lack the internal oil cooling, can we get a brief explanation of why they will work? Certainly don't want that to come off that I'm challenging the validity of anyone's work. Just interested in the theory.

 

any explanation? Is this good or bad pictures?

 

Edgar!
What came first? The chicken or the egg?

 

i want to see video of the FD running around on the street

 

WHAT WE FOUND IS THAT THE OIL IS THERE TO COOL THE STEEL ROTOR FOR THE REASON THAT STEELS RETAINS THE HEAT. THE COOLING PERIOD IS SLOWER IN STEEL.

 

Thanks Edgar!

 

Was there any difference in coolant temps with these rotors?
Do you expect any different results from say a track car that will be running pretty much wide open for 30 minutes or more?

 

We did not see a big difference in the coolant temp, even with the power increase.
We are very confidant about the road track test. What i can do is get back with you as soon as we are done testing