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NRS Rotorsports ceramic seal test results

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Old 07-23-08, 02:28 PM
  #551  
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what's up with the scratched on the housings? looks like a cat got ahold of them
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Old 07-23-08, 03:29 PM
  #552  
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Originally Posted by jantore
yeah im not sure what's up with the black marks around the rear leading plug. It might have something to do with the rear leading coil is starting to fail. And it was running abit high egt temps on the rear rotor.

JT
Jantore you probably should start another thread to cover your problem. Sven needs this space for NRS.

But those black carbon marks are from the spark plug boss overheating. Check out the thread in Rotary Proformance, "Latest Experiment Failure". It is discussed there.
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Old 07-23-08, 05:20 PM
  #553  
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Originally Posted by Viking War Hammer
what's up with the scratched on the housings? looks like a cat got ahold of them
Filings/bits of debris due to broken side seals and scraping of the end plates.

Here's the picture of the apex seal again brightened up. Looks real good except for a couple of very very light scratches (could just be a finger print or mark too) about 1 1/4" in from the left.

For some reason when I hosted the pic on photobucket my editing vanished, picture was not bright so its below.
Attached Thumbnails NRS Rotorsports ceramic seal test results-jt-seals.jpg  

Last edited by Glassman; 07-23-08 at 05:26 PM. Reason: brighter pic didn't work
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Old 07-24-08, 05:43 AM
  #554  
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Well i can wouch for that there is no scratches in any of the apex seals. Ive had my fingers over them to check for scratches and they are smoother now then when i put them in the engine.

The marks u see on the rotor housings are from the E85 and the same sticky stuff that's on the apex seals. There is water condesation all over the inside of the engine. And u can def see where the apex seals have been sitting from when i stopped the engine and untill i took the seals out. It's just water and 2 stroke oil, making it look like scratches. Il take some more pics of the rotor housing after i have washed them today. Same with pics of the apex seals aftere i have washed them clean.

JT
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Old 07-24-08, 07:24 AM
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Originally Posted by jantore
The engine is supposed to be ported by a very good engine tuner in england. He's been building bridge ported engines for over 20 years.

JT

Jantore who over here built your engine Haward Rotary?


rgds
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Old 07-24-08, 07:54 AM
  #556  
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Originally Posted by BNA_ELLIS
Jantore who over here built your engine Haward Rotary?


rgds
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nope i built the engine. but had it ported by someone else in england. not hayward rotary
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Old 07-24-08, 08:02 AM
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Originally Posted by jantore
nope i built the engine. but had it ported by someone else in england. not hayward rotary
Unfortunately there are a few known cowboys over here that work on Rotary engines. If you seen some of the threads with pics on the some of the UK forums
of some the porting from so called rotary experts, it's disgraceful.
I can't see your pictures at the mo as it's blocked while i'm at work.



rgds

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Old 07-24-08, 10:40 AM
  #558  
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Originally Posted by jantore
nope i built the engine. but had it ported by someone else in england. not hayward rotary
Do you mind telling us who ?
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Old 07-24-08, 03:29 PM
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Sven

Here are som cleaned up pictures of the apex seals and the rotor housings.

Rear rotor to the left and front to the right.



Front rotor housing



Rear rotor housing



And a shot of the rotor where the side seal had broken.


I hope im not hijaking your thread to much Sven. But the stranges thing is, even with 3 broken side seals and 1 stuck corner seal and sideal. The car started up on the first key turn with E85. Wich i find quite impressive. And also how high the compression was. So i guess the NRS Ceramic seals work good

JT
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Old 07-25-08, 05:05 AM
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So you dont want to tell us who ported your plates fair enough, because it helps us guys in the England who to use or not to use for porting cheers
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Old 07-25-08, 06:35 AM
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Originally Posted by blitzboy
So you dont want to tell us who ported your plates fair enough, because it helps us guys in the England who to use or not to use for porting cheers
well u most likely know who the person is, since he's one of the best. im not blaiming him, everyone can make a misttake. and this is the first ive had with him. but im still verry satisfied with things he has done in the past.

i just think he might have been verry stressed when he did my porting. cause i did set a time limit to when i was comming over to pick the parts up. and the middle plate was the only thing he had not finished before the week i came. too bad what happend. but hey everyone can make a mistake or two. but it looks like it's getting sorted out quite fine.

it is a race bridge and it would never hold up for verry long. but it was a bit too small compeard to what i wanted. but getting it sorted out now.

but lets not use up Sven's thread about this.

JT
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Old 07-25-08, 12:41 PM
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Originally Posted by jantore

I hope im not hijaking your thread to much Sven. But the stranges thing is, even with 3 broken side seals and 1 stuck corner seal and sideal. The car started up on the first key turn with E85. Wich i find quite impressive. And also how high the compression was. So i guess the NRS Ceramic seals work good

JT
Not at all JT, that's what this thread is all about.
I'm just happy that with all that was going on in the engine that the seals are in great shape!
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Old 07-25-08, 01:11 PM
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Originally Posted by Glassman
Not at all JT, that's what this thread is all about.
I'm just happy that with all that was going on in the engine that the seals are in great shape!
Yeah mee too. I hope i get the engine together and working again. So i can drive my car alittle before the winter comes. We got about 2 months left of ok weather before it starts getting cold. And im gonna need atleast 4-5 weeks of getting it back together again and tuned.

If it does not work im going 3 rotor with a small streetport and a decent size turbo and 450rwhp. 99 V power and water AI. Or maybe E85 with that as well. Will see what happens, just tierd now. Had alot of problems over the last 4 years. And i will drop the car off at a tuner in england and let him build it. :P

JT
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Old 07-25-08, 02:09 PM
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Originally Posted by jantore
Yeah mee too. I hope i get the engine together and working again. So i can drive my car alittle before the winter comes. We got about 2 months left of ok weather before it starts getting cold.
JT
I know exactly what you mean. I'm trying like mad to get my s6 done so I can drive it before the snow flies. I'll be running 2mm 2pc.
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Old 07-25-08, 04:50 PM
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Originally Posted by Glassman
I know exactly what you mean. I'm trying like mad to get my s6 done so I can drive it before the snow flies. I'll be running 2mm 2pc.
You don't have time for that! Let the snow fall!
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Old 07-25-08, 05:12 PM
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Originally Posted by crispeed
You don't have time for that! Let the snow fall!
Hey the man needs some fun with all the good things he does for us. So he needs to drive his rex as well.

I just want to beat the **** out of everybody else on the track
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Old 07-28-08, 05:00 AM
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Come to Matorp Park Action Meet this weekend! There you will se Gusfd3s hit the strip for the first time with his E85 "monster" lol.. Hope he get som good 11s at near 130 mph? ML Wankeltrim is also there with "Back in black" 74-RX-4 hope to hit the 10s zone with N/A 13B PP motor.

/Lasse
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Old 07-28-08, 05:33 PM
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Originally Posted by crispeed
You don't have time for that! Let the snow fall!
You are absolutely right about that but somehow it's going to get done anyway, I hope and pray.

Been working like crazy getting the fixture for the c.s. springs finished. Man that has been some messin to get done. I have already about 24 hrs on it not including design and mock up of a sample to try before getting it made. Looks like it will work fine but it took 2 hrs to load as positioning of the springs is somewhat critical. I'll try another idea for loading it next time and hopefully it will be a lot easier and faster. Sad part is I will have to make at least 4 more of them

I hope this helps everyone understand the many many hours of development that go into these types of innovations. Everyone see's is the nice finished product but seldom do they know the time it takes to get to that point.
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Old 07-28-08, 08:18 PM
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Oh, I forgot. We are also exploring the option of a stiffer c.s. spring. With the ceramic apex seals we are more than doubling the pressure supplied by a single spring without the adverse affect of increased wear on the rotor housing.

We can definitely do the same with the corner seals. I have already found a spring maker that can make them thicker but due to cost reasons we may endeavor to make them ourselves later on.

Stiffer c.s. spring = better rotor stability = better sealing = less bearing load = more power = hoooraa
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Old 08-06-08, 10:14 PM
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I've made 10 passes down the track at 34lbs of boost and she still has awesome compression. Actually it starts on the first crank of the engine everytime.
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Old 08-06-08, 10:17 PM
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Originally Posted by Glassman
more power = hoooraa
Who let the Marine in here ?
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Old 08-07-08, 02:38 PM
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Originally Posted by ErnieT
I've made 10 passes down the track at 34lbs of boost and she still has awesome compression. Actually it starts on the first crank of the engine everytime.
That great to hear Ernie, how were the runs? Close to bringing the IRS record home yet* Whats holding you back from taking her back to 37-38psi and re-dynoing to see what she'll really do?
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Old 08-07-08, 03:29 PM
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Originally Posted by Viper GTSR
That great to hear Ernie, how were the runs? Close to bringing the IRS record home yet* Whats holding you back from taking her back to 37-38psi and re-dynoing to see what she'll really do?
Tryin to get the suspension worked out. Right now Im blazin the tires off in 1st gear, then comin out of boost when I grab 2nd. Ran 3 back to back 10.0X's
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Old 08-07-08, 03:30 PM
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so, only a week til the trans is delivered?
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Old 08-07-08, 04:50 PM
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Near death experience

Well, here's one for the record of bone head moves I've made in my life. I think this will make the top of the chart.

Just ran my new (new to me) annealing equipment for the first time. I made a programming error and the whole lot of 1 pc ceramic seals (2mm, 3mm & 12A) were annealed for approx 5 hours longer than they were supposed to
That's were the "near death experience" comes in. I could have killed myself!! (just kidding, that would never happen) Anyways, the parts took on a spotty look to them. As if splatted with a paint brush. Essentially what appears to have happened is the origional tone of the part came back in spots due to the additional annealing time. The other areas of the seal lightened in color as it should but these origional color spots came back.

Needless to say, I won't be putting these out to general market. I know well enough that this cosmetic difference would only create problems for me and any users so I've recently decided not to even go there. If anyone see's the spots they would only question the products quality and strength as it appears different.

I certainly don't want to get into a situation where no matter the circumstances the seals take the blame for failure. So, I am having the entire order re-made.

As it turns out this is a blessing in disguise for more than one reason
In the same lot of parts I had some special material seals made (6 pcs 3mm 1pc) so I could see how I like it and they were not affected at all by the additional annealing time. The good news here is that this is the best material I've ever laid my eyes on. The 6 seals are absolutly perfect and are yet again even stronger than the improved material I've been raving about (hard to believe isn't it). Even though the material costs more I've decided that this is the material that all future seals will be made from. It's a no brainer for me, it's simply the best there is. I cant wait to begin testing on this material

Here comes the good part, I like to end on a positive note. We will learn a ton from this! I have sent some of the spotted samples to the lab for destructive analysis and the results are in. What we didn't know was if the additional annealing time would weaken or actually strengthen the part. We do know that annealing at the proper time interval will increase the strength but the question is what happens when you go longer. As it turns out it appears to have made them stronger as compared to base line known figures for flexural strength. Now we will process and anneal an extra single sample at the correct time interval and send it to the lab for destrustive analysis comparing the results of the first test.

Here's what we have for flexural strength on the spotted seals compared to the origional material to give you an idea.

The origional material that has taken us to date is of exceptional quality bar none until recent developments. 99.9 % of the testing results and broken records outlined in this thread were achieved with this material. You all know how good it is.
Flexural strength on NRS origional grey material:
Approx 700 + MPa
Flexural strength on spotted samples (same material ErnieT is testing, no spots of course):
Over 950 MPa
Suffice to say Ernie exclusively has the strongest ceramic apex seals ever made!! For now that is, until the next batch is made. Unless someone can prove me wrong then I'll retract that statement

Happy trails, Sven
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