3mm apex seals
03-30-12, 05:52 AM
#1
3mm apex seals
i understand that people use them for high boost applications, but what about using them because they are thicker? could this be considered a "reliability" upgrade or is there more to it other than them being able to handle higher boost?
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03-30-12, 05:51 PM
#11
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It's a brand, http://www.rotaryaviation.com/
03-30-12, 08:27 PM
#12
Here's the thing about aviation seals:
Aviation engines are designed to run a certain number of hours. Of low compression versus seal failure, which option means the engine keeps running? (Which one keeps the airplane at least flying?)
So, with this in mind, the reason people see accelerated wear with RA seals is because they are designed not to break or fail. This extra strength however comes at the expense of accelerated wear on the housing.
However, I believe this can be mitigated by maintaining proper or sufficient lubrication of the apex seals. :-)
Aviation engines are designed to run a certain number of hours. Of low compression versus seal failure, which option means the engine keeps running? (Which one keeps the airplane at least flying?)
So, with this in mind, the reason people see accelerated wear with RA seals is because they are designed not to break or fail. This extra strength however comes at the expense of accelerated wear on the housing.
However, I believe this can be mitigated by maintaining proper or sufficient lubrication of the apex seals. :-)
04-01-12, 03:35 PM
#16
OEM 3mm can be considered a reliability upgrade as they do resist detonation better then 2mm. The additional wear isn't really as much as some people lead you to believe either. However, in this day and age, there are good 2mm options if your rotors are good. Seals like ALS and goopy are better 2mm solutions and considered upgrades over OEM.
I wouldn't recommend RA super seals as after opening a motor after only ~7,000 Km of use, the housings looked pretty nasty from what they were before when I put them in.
thewird
I wouldn't recommend RA super seals as after opening a motor after only ~7,000 Km of use, the housings looked pretty nasty from what they were before when I put them in.
thewird
04-01-12, 07:27 PM
#17
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OEM 3 mm is the only way to fly in my book, all upside, no downs - recently pulled the motor apart with 20k and the housings were in fantastic shape - just lapped and threw it back together
04-06-12, 07:51 AM
#19
Psalms 37**25
If your rotor is in Good shape and 2MM it will do just fine.
04-07-12, 10:11 AM
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I've experienced detonation during early tuning no 2 mm would have survived and the "added wear" argument is specious based on my experience - I've owned this car for 14 years and any added resistance to detonation is beneficial
04-07-12, 11:36 PM
#22
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Super seals 2mm here !!! 605whp @ 32 psi BW S372 turbo And my friend t2 yesterday made 715whp with RA super seals and holding strong , in my next build ill be using goopy those are fantastic too !!! Have seen drag car here in P.R with 52psi and 1050 whp in a 13b and last over 45+ pases in the 1/4 mile
