Rotary Engine Failure due to Side Rotor/Side Rotor Housing Clearance..

[Herblenny]

Originally Posted by Bryan@BNR

Glen,

Dont sweat it buddy. Keep up the good work on the engines. I have seen a few of the ARR vids and the cars run well...

Bryan@BNR

I agree with Bryan, Don't sweat it. I'll admit that you do do good work on the engines. Not discrediting you on that... as I stated before, if I would need balancing and 'clearancing' the rotors, I would consider you.. Unless you are mad at me and if I send you my rotating assembly you'll fuck it up on purpose

But, Regarding disagreement at topic, I like to make sure my point is made during the debate... Ulitmately, people will decide based on points both of us made

[Herblenny]

I just got off the phone with one of DGRR supporting vendor and a rotary specialist with 30 years of experience, Brian from Rotorsports Racing.

When I asked Brian about this specific kind of failure (side rotor clearance), he said he has seen ZERO on a street driven car. Not only that, he has seen very very few from race engines he has built over the years.

[Herblenny]

Got off the phone with yet Another builder... a well known 3 rotor shop in OH also confirmed with me regarding clearancing the rotor.

They also have NOT seen any motors they torn down that's street engine (less 400HP/less 8500RPM) that failed because of side rotor/side housing clearancing.

[sk8world]

call BDC and ask his advice....LOL....LOL....


Ok, we have to remove Phil's aviator pic as its becoming him.............

See ya Friday! And if you get a chance to see Brian (BNR) he has going to have you bring me a TII diff if you have room...

[Herblenny]

Originally Posted by sk8world

call BDC and ask his advice....LOL....LOL....


Ok, we have to remove Phil's aviator pic as its becoming him.............

See ya Friday! And if you get a chance to see Brian (BNR) he has going to have you bring me a TII diff if you have room...

LOL!

I know.. Maybe I am what BDC mentioned Dang.. My apologies!

I'll tell Stephen as he's heading to BNR to take the wheels off... then bringing it back to me.. So, maybe he could bring the diff also.


I've also talked to another builder in FL and he just stated to me that he also never seen street or built motor that had issues with side of rotor to iron clearance issue...

Yes, I know... Its getting old... But to be a valid, high number of sampling is needed...

[RETed]

I think possibility of increased blow-by, which ultimately will lead to shorter engine life?


-Ted

[joff]

Originally Posted by RETed

I think possibility of increased blow-by, which ultimately will lead to shorter engine life?


-Ted

I'm curious, how would blow-by lead to shorter engine life? I understand how it could reduce power, but it would seem to me that greater clearance on sealing surfaces reduces seal wear and would increase engine life in exchange for maybe less fuel economy.

Didn't Mazda increase side seal clearance drastically on the Renesis? They must have done that for a reason, right? I personally would trust Mazda engineers to have better data than the entire engine builder aftermarket put together.

[Bryan@BNR]

Originally Posted by joff

I'm curious, how would blow-by lead to shorter engine life? I understand how it could reduce power, but it would seem to me that greater clearance on sealing surfaces reduces seal wear and would increase engine life in exchange for maybe less fuel economy.

Didn't Mazda increase side seal clearance drastically on the Renesis? They must have done that for a reason, right? I personally would trust Mazda engineers to have better data than the entire engine builder aftermarket put together.

Joff,
If mazdas engineers were puerto rican, we would have some of the badest production cars ever .

[To_Slow]

Time for me to jump in lol...

For street no more than 8k RPM Clearancing the side of the rotors is not necessary.. unless the costumer wish to have it done.. for future hp needs..... Simple... ...

[Bryan@BNR]

Jump!

[Smokey]

perhaps I'm missing it in the deleted posts on the other thread, but I thought that Charlie said he intends to use his motor/car for high RPM (9K) and track use....meaning that the clearancing was necessary?


As a point of personal education, what is the possible downside to clearancing rotors for a street car? Possible side seal wear?

[charlies7]

Originally Posted by Smokey

perhaps I'm missing it in the deleted posts on the other thread, but I thought that Charlie said he intends to use his motor/car for high RPM (9K) and track use....meaning that the clearancing was necessary?


As a point of personal education, what is the possible downside to clearancing rotors for a street car? Possible side seal wear?

That is correct. I also plan on driving the car on the street every chance I get. I got the clearancing done for extra insurance when I will be running the car in the higher rev's. To me its worth it.

[glenrx7]

Blow by would not increase the side seals still do there job. Have Phil call all of his engine builders to find out

[Herblenny]

Just got off the phone with Paul @ Mazmart (home of Rick Engman). Paul asked Rick about this for me and Rick says he does not clearance the rotors... Not even on his race engines.

[Herblenny]

Originally Posted by glenrx7

Have Phil call all of his engine builders to find out

LOL!

So, What happened?? I thought you said you are done with this??

Originally Posted by glenrx7

So I am done with it....

Hmm.. I guess you were lying to me

Anyhow, Another thing you guys can do is listen to Glen like flies on shit