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NRS Rotorsports www.nrsrotorsports.com (Canada) Ceramic apex & corner seals for rotary engine applications

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Old 12-28-2009, 07:52 PM   #1
thewird
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Yah, I do but the RX-8 owner would have to order them for himself. I don't have his contact and Dave is on holidays so I can't let him know until he comes back. Hopefully they don't get sold by then. Worst case he has to wait for your next batch. So please let me know how I would proceed with my order. Thanks.

Also, forgot to mention these seals are your spotted seals that were in the oven too long ^_^. I'd like to say I love them.

Reason being when I was down at the gap, I was running a fuel pump backup wire which was too thin since my relay died. So the wire overheated and caused a fuel pressure drop causing me to go into a really bad lean condition. We had stopped at the bottom after a good while of going up and down the gap. When we left we all opened it up. I heard a strange sound which I realized after was AUDIBLE detonation, I looked down at my wideband while I was still WOT and saw 14.x AFR @ 16 pounds of boost. When I finally let off 2-3 seconds later, I immediately assumed engines gone. But to my surprise it sounded normal. I then tried it again to confirm and the same thing happened so I puttered it back to the cabin until I could fix the fuel issue. This was at around 5,000-10,000 km in the life of the engine. It has continued to run fine all season and now has 32,000 km. There is nothing wrong the engine, me and Dave are just curious on the internals. Anyway, just wanted to say I love your seals.

However, I always wonder if I had the same seals but in 2-piece if if they would have been so resilient. Thoughts?

thewird
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Old 12-28-2009, 08:27 PM   #2
glassman
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Quote:
Originally Posted by thewird View Post
However, I always wonder if I had the same seals but in 2-piece if if they would have been so resilient. Thoughts?
thewird
You know that is a really good question, I often wondered the same myself. The 2pc seal is subjected to a lot different operating conditions as opposed to the 1pc seal which floats and never touches the plates. The only obvious difference from a design point would be where the 45 degree split is between the pcs. But from an operating perspective it could be a whole different ball game. Some claim the 1pc seal is overall stronger for this reason.

NRS 2pc seals are like the old Rotary Truck type where the wedge sits under the main bar and never contacts the rotor housing. This will give full positive sealing from the get go without having to gouge the rotor housing to establish contact with the main bar. This also makes the tip of the main bar much stronger and less prone to chipping off as it no longer comes to a razor point.
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Mild to wild, street to strip, when you want to go fast and you want your engine to last, NRS Ceramics is the only way to go.
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Old 12-28-2009, 08:51 PM   #3
glassman
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Also, forgot to mention these seals are your spotted seals that were in the oven too long ^_^. I'd like to say I love them.
thewird
GREAT!! Glad to get some feedback on those!
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Mild to wild, street to strip, when you want to go fast and you want your engine to last, NRS Ceramics is the only way to go.
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www.nrsrotorsports.com
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